SK58
HYDRAULIC
SINKER DRILL
USER MANUAL
Safety, Operation and Maintenance
© 2014 Stanley Black & Decker, Inc.
New Britain, CT 06053
U.S.A.
70744 8/2014 Ver. 8
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TABLE OF CONTENTS
SAFETY SYMBOLS ..................................................................................................................................................4
SAFETY PRECAUTIONS..........................................................................................................................................5
TOOL STICKERS & TAGS........................................................................................................................................6
HOSE TYPES............................................................................................................................................................7
HOSE RECOMMENDATIONS ..................................................................................................................................8
FIGURE 1. TYPICAL HOSE CONNECTIONS.......................................................................................................8
HTMA REQUIREMENTS...........................................................................................................................................9
OPERATION............................................................................................................................................................10
TOOL PROTECTION & CARE................................................................................................................................12
TROUBLESHOOTING ............................................................................................................................................13
CHARGING THE ACCUMULATOR.........................................................................................................................14
FIGURE 2. CHARGING THE ACCUMULATOR...................................................................................................15
SPECIFICATIONS...................................................................................................................................................16
ACCESSORIES.......................................................................................................................................................16
SERVICE TOOLS....................................................................................................................................................16
SK58 PARTS ILLUSTRATION.................................................................................................................................17
SK58 PARTS LIST...................................................................................................................................................18
UNDERWATER TOOLS DEPTH GUIDELINE.........................................................................................................20
IMPORTANT
To fill out a Product Warranty Recording form, and for information on your warranty,
visit Stanleyhydraulics.com and select the Company tab, Warranty.
(NOTE: The warranty recording form must be submitted to validate the warranty).
SERVICING: This manual contains safety, operation, and routine maintenance instructions. Stanley Hydraulic Tools
recommends that servicing of hydraulic tools, other than routine maintenance, must be performed by an authorized
and certified dealer. Please read the following warning.
WARNING
SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR
SERVICE OF THIS TOOL.
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN
AUTHORIZED AND CERTIFIED DEALER.
For the nearest authorized and certified dealer, call Stanley Hydraulic Tools at the number listed on the back of this
manual and ask for a Customer Service Representative.
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SAFETY SYMBOLS
Safety symbols and signal words, as shown below, are used to emphasize all operator, maintenance and repair ac-
tions which, if not strictly followed, could result in a life-threatening situation, bodily injury or damage to equipment.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible
injury or death.
This safety alert and signal word indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
DANGER
WARNING
CAUTION
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoid-
ed, may result in property damage.
CAUTION
NOTICE
This signal word indicates a situation which, if not avoided, will result in damage
to the equipment.
This signal word indicates a situation which, if not avoided, may result in dam-
age to the equipment.
IMPORTANT
Always observe safety symbols. They are included for your safety and for the protection of the tool.
LOCAL SAFETY REGULATIONS
Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and mainte-
nance personnel.
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SAFETY PRECAUTIONS
Tool operators and maintenance personnel must always
Wipe all couplers clean before connecting. Use only
lint-free cloths. Failure to do so may result in dam-
age to the quick couplers and cause overheating of
the hydraulic system.
comply with the safety precautions given in this manual
and on the stickers and tags attached to the tool and
hose.
These safety precautions are given for your safety. Re-
view them carefully before operating the tool and before
performing general maintenance or repairs.
•
Do not operate the tool at oil temperatures above
140 °F/60 °C. Operation at higher oil temperatures
can cause operator discomfort and may damage the
tool.
Supervising personnel should develop additional pre-
cautions relating to the specific work area and local
safety regulations. If so, place the added precautions in
the space provided in this manual.
•
•
•
Do not operate a damaged, improperly adjusted, or
incompletely assembled tool.
Do not weld, cut with an acetylene torch, or hardface
the tool bit.
The SK58 Hydraulic Sinker Drill will provide safe and
dependable service if operated in accordance with the
instructions given in this manual. Read and understand
this manual and any stickers and tags attached to the
tool and hoses before operation. Failure to do so could
result in personal injury or equipment damage.
To avoid personal injury or equipment damage, all
tool repair, maintenance and service must only be
performed by authorized and properly trained per-
sonnel.
•
•
•
•
•
•
•
Do not exceed the rated limits of the tool or use the
tool for applications beyond its design capacity.
Always keep critical tool markings, such as labels
and warning stickers legible.
Always replace parts with replacement parts recom-
mended by Stanley Hydraulic Tools.
•
Operator must start in a work area without bystand-
ers. The operator must be familiar with all prohibited
work areas such as excessive slopes and danger-
ous terrain conditions.
Check fastener tightness often and before each use
daily.
Never operate the tool if you cannot be sure that
underground utilities are not present.
•
•
•
Establish a training program for all operators to en-
sure safe operation.
Do not wear loose fitting clothing when operating the
tool.
Do not operate the tool unless thoroughly trained or
under the supervision of an instructor.
Warning: Use of this tool on certain materials during
demolition could generate dust potentially contain-
ing a variety of hazardous substances such as as-
bestos, silica or lead. Inhalation of dust containing
these or other hazardous substances could result
in serious injury, cancer or death. Protect yourself
and those around you. Research and understand
the materials you are cutting. Follow correct safety
procedures and comply with all applicable national,
state or provisional health and safety regulations
relating to them, including, if appropriate arranging
for the safe disposal of the materials by a qualified
person.
Always wear safety equipment such as goggles,
ear, head protection, and safety shoes at all times
when operating the tool.
•
•
Do not inspect or clean the tool while the hydraulic
power source is connected. Accidental engagement
of the tool can cause serious injury.
Supply hoses must have a minimum working pres-
sure rating of 2500 psi/175 bar.
•
•
Be sure all hose connections are tight.
The hydraulic circuit control valve must be in the
“OFF” position when coupling or uncoupling the tool.
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TOOL STICKERS & TAGS
02754
SK58 Name Tag
03786
GPM Sticker
NOTE:
D A N G E R
D A N G E R
THE INFORMATION LISTED
ON THE STICKERS SHOWN,
MUST BE LEGIBLE AT ALL
TIMES.
1. FAILURE TO USE HYDRAULIC HOSE LABELED AND CER-
TIFIED AS NON-CONDUCTIVE WHEN USING HYDRAULIC
TOOLS ON OR NEAR ELECTRICAL LINES MAY RESULT IN
DEATH OR SERIOUS INJURY.
D. DO NOT LIFT OR CARRY TOOL BY THE HOSES. DO
NOT ABUSE HOSE. DO NOT USE KINKED, TORN OR
DAMAGED HOSE.
3. MAKE SURE HYDRAULIC HOSES ARE PROPERLY CON-
NECTED TO THE TOOL BEFORE PRESSURING SYSTEM.
SYSTEM PRESSURE HOSE MUST ALWAYS BE CON-
NECTED TO TOOL “IN” PORT. SYSTEM RETURN HOSE
MUST ALWAYS BE CONNECTED TO TOOL “OUT” PORT.
REVERSING CONNECTIONS MAY CAUSE REVERSE
TOOL OPERATION WHICH CAN RESULT IN SEVERE
PERSONAL INJURY.
BEFORE USING HOSE LABELEDAND CERTIFIEDAS NON-
CONDUCTIVE ON OR NEAR ELECTRIC LINES BE SURE THE
HOSE IS MAINTAINED AS NON-CONDUCTIVE. THE HOSE
SHOULD BE REGULARLY TESTED FOR ELECTRIC CUR-
RENT LEAKAGE IN ACCORDANCE WITH YOUR SAFETY
DEPARTMENT INSTRUCTIONS.
REPLACE DECALS IF
THEY BECOME WORN OR
DAMAGED. REPLACEMENTS
ARE AVAILABLE FROM
YOUR LOCAL STANLEY
DISTRIBUTOR.
2. A HYDRAULIC LEAK OR BURST MAY CAUSE OIL INJEC-
TION INTO THE BODY OR CAUSE OTHER SEVERE
PERSONAL INJURY.
4. DO NOT CONNECT OPEN-CENTER TOOLS TO CLOSED-
CENTER HYDRAULIC SYSTEMS. THIS MAY RESULT IN
LOSS OF OTHER HYDRAULIC FUNCTIONS POWERED BY
THE SAME SYSTEMAND/OR SEVERE PERSONAL INJURY.
A. DO NOT EXCEED SPECIFIED FLOW AND PRESSURE
FOR THIS TOOL. EXCESS FLOW OR PRESSURE MAY
CAUSE A LEAK OR BURST.
5. BYSTANDERS MAY BE INJURED IN YOUR WORK AREA.
KEEP BYSTANDERS CLEAR OF YOUR WORK AREA.
B. DO NOT EXCEED RATED WORKING PRESSURE OF
HYDRAULIC HOSE USED WITH THIS TOOL. EXCESS
PRESSURE MAY CAUSE A LEAK OR BURST.
6. WEAR HEARING, EYE, FOOT, HAND AND HEAD PRO-
TECTION.
7. TO AVOID PERSONAL INJURY OR EQUIPMENT DAMAGE,
ALL TOOL REPAIR MAINTENANCE AND SERVICE MUST
ONLY BE PERFORMED BY AUTHORIZED AND PROPERLY
TRAINED PERSONNEL.
C. CHECK TOOL HOSE COUPLERS AND CONNECTORS
DAILY FOR LEAKS. DO NOT FEEL FOR LEAKS WITH
YOUR HANDS. CONTACT WITH A LEAK MAY RESULT
IN SEVERE PERSONAL INJURY.
The safety tag (P/N 15875) at right is
attached to the tool when shipped from
the factory. Read and understand the
safety instructions listed on this tag before
removal. We suggest you retain this tag and
attach it to the tool when not in use.
I M P O R T A N T
I M P O R T A N T
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
TOOL BEFORE USING IT.
TOOL BEFORE USING IT.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
STANLEY AND DESCRIBED IN THE
OPERATION MANUAL.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
STANLEY AND DESCRIBED IN THE
OPERATION MANUAL.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
SEE OTHER SIDE
SEE OTHER SIDE
SAFETY TAG P/N 15875 (Shown smaller then actual size)
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HOSE TYPES
The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hy-
draulic system. There are three types of hydraulic hose that meet this requirement and are authorized for use with
Stanley Hydraulic Tools. They are:
Certified non-conductive — constructed of thermoplastic or synthetic rubber inner tube, synthetic fiber braid
reinforcement, and weather resistant thermoplastic or synthetic rubber cover. Hose labeled certified non-
conductive is the only hose authorized for use near electrical conductors.
Wire-braided (conductive) — constructed of synthetic rubber inner tube, single or double wire braid reinforce-
ment, and weather resistant synthetic rubber cover. This hose is conductive and must never be used near
electrical conductors.
Fabric-braided (not certified or labeled non-conductive) — constructed of thermoplastic or synthetic rubber in-
ner tube, synthetic fiber braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover. This
hose is not certified non-conductive and must never be used near electrical conductors.
HOSE SAFETY TAGS
To help ensure your safety, the following DANGER tags are attached to all hose purchased from Stanley Hydraulic
Tools. DO NOT REMOVE THESE TAGS.
If the information on a tag is illegible because of wear or damage, replace the tag immediately. A new tag may be
obtained from your Stanley Distributor.
THE TAG SHOWN BELOW IS ATTACHED TO “CERTIFIED NON-CONDUCTIVE” HOSE
D A N G E R
D A N G E R
1. FAILURE TO USE HYDRAULIC HOSE LABELED AND CERTIFIED AS NON-CONDUCTIVE
WHEN USING HYDRAULIC TOOLS ON OR NEAR ELECTRIC LINES MAY RESULT IN
DEATH OR SERIOUS INJURY.
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE
OR HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE.
KEEP HOSE AS FAR AWAY AS POSSIBLE FROM BODY AND DO NOT PERMIT DIRECT
CONTACT DURING USE. CONTACT AT THE BURST CAN CAUSE BODILY INJECTION
AND SEVERE PERSONAL INJURY.
FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROP-
ERLY TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND
ELECTRIC LINES.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING, ABRASION, CUTTING, OR
CONTACT WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT
USE HOSE TO PULL OR LIFT TOOLS, POWER UNITS, ETC.
2. BEFORE USING HYDRAULIC HOSE LABELED AND CERTIFIED AS NON-CONDUCTIVE
ON OR NEAR ELECTRIC LINES. WIPE THE ENTIRE LENGTH OF THE HOSE AND FIT-
TING WITH A CLEAN DRY ABSORBENT CLOTH TO REMOVE DIRT AND MOISTURE AND
TEST HOSE FOR MAXIMUM ALLOWABLE CURRENT LEAKAGE IN ACCORDANCE WITH
SAFETY DEPARTMENT INSTRUCTIONS.
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS, BULGES, OR DAM-
AGE TO COUPLINGS IF ANY OF THESE CONDITIONS EXIST, REPLACE THE HOSE
IMMEDIATELY. NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE.
6. AFTER EACH USE STORE IN A CLEAN DRY AREA.
SEE OTHER SIDE
SEE OTHER SIDE
SIDE 1
SIDE 2
(Shown smaller than actual size)
THE TAG SHOWN BELOW IS ATTACHED TO “CONDUCTIVE” HOSE.
D A N G E R
D A N G E R
1. DO NOT USE THIS HYDRAULIC HOSE ON OR NEAR ELECTRIC LINES. THIS HOSE IS
NOT LABELED OR CERTIFIED AS NON-CONDUCTIVE. USING THIS HOSE ON OR NEAR
ELECTRICAL LINES MAY RESULT IN DEATH OR SERIOUS INJURY.
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKSABRASIONS, BULGES, OR DAMAGE TO
COUPLINGS IF ANY OF THESE CONDITIONS EXIST, REPLACE THE HOSE IMMEDIATELY.
NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE.
2. FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY
TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND ELEC-
TRIC LINES.
6. AFTER EACH USE STORE IN A CLEAN DRY AREA.
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE OR
HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE. KEEP HOSE
AS FAR AWAY AS POSSIBLE FROM BODY AND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACT AT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING, CUTTING, OR CONTACT
WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT USE HOSE TO
PULL OR LIFT TOOLS, POWER UNITS, ETC.
SEE OTHER SIDE
SEE OTHER SIDE
SIDE 1
SIDE 2
(Shown smaller than actual size)
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HOSE RECOMMENDATIONS
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HTMA / EHTMA REQUIREMENTS
HTMA / EHTMA REQUIREMENTS
HTMA
TOOL TYPE
HYDRAULIC SYSTEM REQUIREMENTS
TYPE I
TYPE II
TYPE RR
9-10.5 gpm
(34-40 lpm)
1500 psi
TYPE III
11-13 gpm
(42-49 lpm)
1500 psi
4-6 gpm
7-9 gpm
Flow Range
(15-23 lpm)
1500 psi
(103 bar)
(26-34 lpm)
1500 psi
(103 bar)
Nominal Operating Pressure
(at the power supply outlet)
(103 bar)
(103 bar)
2100-2250 psi
(145-155 bar)
2100-2250 psi
(145-155 bar)
2200-2300 psi
(152-159 bar)
2100-2250 psi
(145-155 bar)
System relief valve setting
(at the power supply outlet)
250 psi
(17 bar)
250 psi
(17 bar)
250 psi
(17 bar)
250 psi
(17 bar)
Maximum back pressure
(at tool end of the return hose)
400 ssu*
400 ssu*
400 ssu*
400 ssu*
Measured at a max. fluid viscosity of:
(82 centistokes) (82 centistokes) (82 centistokes) (82 centistokes)
(at min. operating temperature)
Temperature: Sufficient heat rejection
capacity to limit max. fluid temperature to:
(at max. expected ambient temperature)
140° F
(60° C)
140° F
(60° C)
140° F
(60° C)
140° F
(60° C)
Min. cooling capacity at a temperature
3 hp
5 hp
6 hp
7 hp
difference of between ambient and fluid
temps
(2.24 kW)
40° F
(3.73 kW)
40° F
(5.22 kW)
40° F
(4.47 kW)
40° F
NOTE:
(22° C)
(22° C)
(22° C)
(22° C)
Do not operate the tool at oil temperatures above 140° F (60° C). Operation at higher temperatures can cause operator
discomfort at the tool.
Filter
25 microns
30 gpm
(114 lpm)
25 microns
30 gpm
(114 lpm)
25 microns
30 gpm
(114 lpm)
25 microns
30 gpm
(114 lpm)
Min. full-flow filtration
Sized for flow of at least:
(For cold temp. startup and max.
dirt-holding capacity)
Hydraulic fluid Petroleum based
(premium grade, anti-wear, non-conductive)
Viscosity (at min. and max. operating temps)
100-400 ssu*
100-400 ssu*
(20-82 centistokes)
100-400 ssu*
100-400 ssu*
NOTE:
When choosing hydraulic fluid, the expected oil temperature extremes that will be experienced in service determine the
most suitable temperature viscosity characteristics. Hydraulic fluids with a viscosity index over 140 will meet the requirements
over a wide range of operating temperatures.
*SSU = Saybolt Seconds Universal
CLASSIFICATION
EHTMA
HYDRAULIC SYSTEM
REQUIREMENTS
C
B
D
Flow Range
3.5-4.3 gpm
(13.5-16.5 lpm) (18-22 lpm)
1870 psi
(129 bar)
4.7-5.8 gpm
7.1-8.7 gpm
(27-33 lpm)
1500 psi
9.5-11.6 gpm
(36-44 lpm)
1500 psi
11.8-14.5 gpm
(45-55 lpm)
1500 psi
Nominal Operating Pressure
(at the power supply outlet)
1500 psi
(103 bar)
(103 bar)
(103 bar)
(103 bar)
System relief valve setting
(at the power supply outlet)
2495 psi
(172 bar)
2000 psi
(138 bar)
2000 psi
(138 bar)
2000 psi
(138 bar)
2000 psi
(138 bar)
NOTE: These are general hydraulic system requirements. See tool specification page for tool specific requirements
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OPERATION
The recommended hose size is .500 inch/12 mm I.D. up NOTE:
to 50 ft/15 m long and .625 inch/16 mm I.D. minimum up
to 100 ft/30 m.
If uncoupled hoses are left in the sun, pressure in-
crease within the hoses may make them difficult to
connect. When possible, connect the free ends of
the hoses together.
PRE-OPERATION PROCEDURES
CHECK POWER SOURCE
5. Connect the hose from the air supply to the hose on
the tool.
1. Using a calibrated flowmeter and pressure gauge,
check that the hydraulic power source develops a
flow of 7-9 gpm/26-34 lpm at 1500-2000 psi/105-
140 bar.
NOTICE
2. Make certain the hydraulic power source is equipped
with a relief valve set to open at 2100-2250 psi/145-
155 bar maximum.
The air supply must be minimum 30 cfm at 120
psi. Supplying less than these specifications may
result in inadequate extraction of rock cuttings;
cause cuttings to migrate up the drill steel and
into the tool and result in tool damage; diminish
drilling time; and cause premature wear of the
drill bit.
INSTALL DRILL STEEL & ROCK BIT
Use standard 4-1/4 inch shank × 1 inch hex drill steel
for SK58110, SK58120 and SK58310 models and 4-1/4
inch shank × 7/8 inch hex drill steel for the SK58130
model.
Drill steels are available in a variety of lengths. Start
with a short length so that the tool may be operated at a
normal standing position. The tool handles should never
exceed chest height during operation.
OPERATION PROCEDURES
1. Observe all safety precautions.
2. Install the appropriate tool bit for the job.
1. Thread a rock bit onto the drill steel.
2. Rotate the latch (61) out and up.
3. Slide the drill steel into the tool.
3. Start the hydraulic supply and turn the circuit control
valve to the ON position.
4. Open the air valve on the tool just enough to permit
a small amount of air flow from the tool bit.
4. Rotate the latch down being careful not to pinch your
fingers. When correctly installed, the collar on the
drill steel should be above the bottom of the latch.
NOTE:
Air flow must be continuous during drilling to avoid
clogging of the air passages and/or back-flushing of
waste products into the drill.
CONNECT HOSES
1. Wipe all hose couplers with a clean, lint-free cloth
before making connections.
5. Place the bit firmly on the surface to be drilled.
6. Open the hydraulic valve lever slightly to start the
tool at a slow speed. Adequate down pressure is
very important.
2. Connect the hoses from the hydraulic power source
to the tool fittings or quick disconnects. It is a good
practice to connect return hoses first and discon-
nect them last to minimize or avoid trapped pressure
within the tool.
7. Ensure the rock bit is rotating at a moderate speed
(not too fast, not too slow). When starting the hole,
it is best to start at a slow impact and rotation speed
until the rock bit has carved out a depression in the
material being drilled. If the rock bit is not rotating
open the hydraulic valve lever further. If the rock bit
still does not rotate adjust the motor control knob
until rotation is achieved.
3. Observe flow indicators stamped on hose couplers
to ensure that fluid flow is in the proper direction.
The female coupler on the tool hose is the inlet cou-
pler.
4. Move the hydraulic circuit control valve to the ON
position to operate the tool.
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OPERATION
8. After the rock bit has carved out a depression in the
material being drilled, open the hydraulic valve le-
ver fully. Readjust the motor control knob to obtain
a good drilling speed. Adjust the air valve to ensure
the cuttings are being extracted from the drill hole.
9. When the bottom of the tool comes within 6 inches
of the drill hole, it is time to either add another sec-
tion of drill steel or replace the existing drill steel with
a longer section. Close the hydraulic valve lever but
leave the air valve “ON” and then lift the tool with
drill steel and rock bit out of the hole. Leaving the
air valve “ON” helps prevent cuttings from falling
around the bit while the bit is lifted from the hole.
10. When the tool, drill steel and bit have been removed
from the drill hole, turn the valve lever “OFF” and
turn the hydraulic supply circuit control valve “OFF”
before changing the drill steel or rock bit.
COLD WEATHER OPERATION
If the breaker is to be used during cold weather, preheat
the hydraulic fluid at low engine speed. When using the
normally recommended fluid, fluid temperature should
be at or above 50 °F/10 °C (400 ssu/82 centistokes) be-
fore use.
Damage to the hydraulic system or breaker can result
from use with fluid that is too viscous or thick.
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TOOL PROTECTION & CARE
NOTICE
In addition to the Safety Precautions found in
this manual, observe the following for equipment
protection and care.
•
•
Make sure all couplers are wiped clean before con-
nection.
•
Keep tool bit sharp for maximum drilling perfor-
mance. Make sure that tool bits are not chipped or
rounded on the striking end.
The hydraulic circuit control valve must be in the
“OFF” position when coupling or uncoupling hydrau-
lic tools. Failure to do so may result in damage to
the quick couples and cause overheating of the hy-
draulic system.
•
•
•
•
Never operate a hammer drill without a tool bit or
without holding it against the work surface.
Tool repair should be performed by experienced
personnel only.
•
•
Always store the tool in a clean dry space, safe from
damage or pilferage.
Make certain that the recommended relief valves
are installed in the pressure side of the system.
Make sure the circuit PRESSURE hose (with male
quick disconnect) is connected to the “IN” port. The
circuit RETURN hose (with female quick disconnect)
is connected to the opposite port. Do not reverse cir-
cuit flow. This can cause damage to internal seals.
Do not use the tool for applications for which it was
not intended.
•
Always replace hoses, couplings and other parts
with replacement parts recommended by Stanley
Hydraulic Tools. Supply hoses must have a mini-
mum working pressure rating of 2500 psi/172 bar.
•
•
Do not exceed the rated flow (see Specifications in
this manual for correct flow rate and model number).
Rapid failure of the internal seals may result.
Always keep critical tool markings, such as warning
stickers and tags legible.
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TROUBLESHOOTING
PROBLEM
CAUSE
REMEDY
Tool does not run.
Power unit not functioning.
Check power unit for proper flow and pressure
(7–9 gpm/26–34 lpm, 1500–2000 psi/105–140 bar.
Couplers or hoses blocked.
Remove restriction.
Pressure and return line hoses
reversed at ports.
Be sure hoses are connected to their proper ports.
Mechanical failure of piston or
automatic valve.
Disassemble breaker and inspect for damaged
parts.
Tool does not drill effectively. Power unit not functioning.
Check power unit for proper flow and pressure
(7-9 gpm/26-34 lpm, 1500-2000 psi/105-140 bar.
Couplers or hoses blocked.
Remove restriction.
Low accumulator charge (pressure
hose will pulse more than normal).
Recharge accumulator. Replace diaphragm if
charge loss continues.
Fluid too hot (above 140.°F/60.°C). Provide cooler to maintain proper fluid
temperature (130 °F/55 °C).
Insufficient air or water.
20 cfm minimum.
Tool operates slow.
Low gpm supply from power unit.
Check power unit for proper flow (7–9 gpm/26–34
lpm).
High back-pressure.
Check hydraulic system for excessive back-
pressure (over 250 psi/17 bar).
Couplers or hoses blocked.
Remove restriction.
Remove restriction.
Orifice plug blocked.
Fluid too hot (above 140 °F/60 °C)
or too cold (below 60 °F/16 °C).
Check power unit for proper fluid temperature.
Bypass cooler to warm the fluid or provide cooler
to maintain proper temperature.
Relief valve set too low.
Adjust relief valve to 2100–2250 psi/145–155 bar.
Tool gets hot.
Hot fluid going through tool.
Check power unit. Be sure flow rate is not too
high causing part of the fluid to go through the
relief valve. Provide cooler to maintain proper fluid
temperature (140 °F/60 °C max).
Check the relief valve setting.
Fluid leakage on drill steel.
Lower piston or drive hex seal
failure.
Replace seals.
Fluid leakage through charge Upper piston seal failure or
Replace seals, recharge or replace accumulator
diaphragm.
valve cap.
accumulator O-ring failure or
accumulator charge loss or failure.
Fluid leakage around trigger. Valve spool seal failure.
Replace seals.
Low rotation torque.
Motor not completely broken in.
Continue operation to break in motor.
Excessive oil temperature causes
operating pressure loss.
Provide cooler to maintain oil temperature (under
140 °F).
Damage to motor clearances.
Insufficient air or water.
Repair as required.
20 cfm minimum.
Mechanical binding during drilling.
Take care to guide drill straight.
SK58 User Manual ◄ 13
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CHARGING THE ACCUMULATOR
ACCUMULATOR TESTING
ACCUMULATOR CHARGING
PROCEDURE
To check or charge the accumulator the following equip-
ment is required:
1. Perform steps 1 through 4 of the accumulator test-
ing procedure above.
2. Connect the chuck of the charging assembly to the
charging valve on the accumulator tester or, if pre-
ferred, remove the tester from the charging valve
and connect the charging assembly chuck directly
to the charging valve.
31254 Charge Kit: which includes the following: (Shown
in Figure 2 on the next page.)
•
•
Accumulator Tester (Part Number 02835).
Charging Assembly (P/N 15304) Includes a liquid
3. Adjust the regulator to the charging pressure of 600
psi/42 bar.
filled gauge w/snub valve, hose and charge fitting.
•
NITROGEN bottle with a 800 psi/56 bar minimum
charge. (Not included in 31254 Charge Kit.)
NOTE:
It may be necessary to set the gauge at 650-700
psi/45-48 bar to overcome any pressure drop
through the charging system.
1. Remove the valve cap assembly from the sinker
drill.
2. Remove the protective cap and loosen the 5/8-inch
hex locking nut on the tool charging valve 1-1/2
turns.
4. Open the valve on the charging assembly hose.
5. When the accumulator is fully charged close the
valve on the charging assembly hose and remove
the charging assembly chuck from the accumulator
tester or tool charging valve.
3. Holding the chuck end of Accumulator Tester (P/N
02835) turn the gauge fully counterclockwise to en-
sure that the stem inside the chuck is completely
retracted.
6. If the accumulator tester has been used, be sure to
turn the gauge-end fully counterclockwise before re-
moving the tester from the charging valve of the tool.
4. Thread the tester onto the accumulator charg-
ing valve. Do not advance the gauge-end into the
chuck-end. Turn as a unit. Seat the chuck on the
accumulator charging valve and hand tighten only.
7. Tighten the 5/8-inch hex locking nut on the tool
charging valve and replace the protective cap.
8. Replace the valve cap assembly.
5. Advance the valve stem of the tester by turning the
gauge-end clockwise until a pressure is read on the
gauge (charge pressure should be 600-700 psi/42-
48 bar).
GENERAL SERVICE NOTES
1. If the breaker is repainted after servicing, be sure to
mask off the vent in the valve cap assembly. Do not
allow paint to enter the IN and OUT ports or the bore
of the foot assembly.
6. If pressure is OK unscrew the gauge-end from the
chuck to retract the stem, then unscrew the entire
tester assembly from the accumulator charging
valve. If pressure is low, charge the accumulator as
described in the following procedure.
2. If the handle grips need to be replaced.
a. Remove the old grips and clean the handle.
7. Tighten the 5/8-inch hex locking nut on the tool
charging valve. Be careful not to overtighten. Install
the protective cap and valve cap assembly.
b. Wash the new grips and the handle clean and
dry, simply push or drive the grips on. DO NOT
lubricate the parts. The grips will not be secure
on the handle if any grease or oil is used.
14 ► SK58 User Manual
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CHARGING THE ACCUMULATOR
Figure 2. Charging the Accumulator
SK58 User Manual ◄ 15
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SPECIFICATIONS
Shank Size (SK58110 Air, SK58120 Water, SK58310 UW Air) ....................................................4-1/4 in. × 1 in. Hex
Shank Size (SK58130 Air).........................................................................................................4-1/4 in. × 7/8 in. Hex
Pressure Range..............................................................................................................1500–2000 psi/105–140 bar
Flow Range .................................................................................................................................7-9 gpm / 26-34 lpm
Optimum Flow .....................................................................................................................................8 gpm / 30 lpm
Maximum Back Pressure......................................................................................................................250 psi/17 bar
Connect Size & Type...........................................................................................................3/8 in. Male Pipe Adapter
Weight ....................................................................................................................................................67 lbs / 30 kg
Length.................................................................................................................................................... 26 in. / 66 cm
Width ..................................................................................................................................................... 18 in. / 46 cm
Hose Whips................................................................................................................................................... Included
Port Size................................................................................................................................................-8 SAE O-ring
Air Supply........................................................................................................................ Minimum 30 cfm @ 120 psi
VIBRATION DECLARATION
SK58310 MODELS
DECLARED VIBRATION EMISSION VALUE IN ACCORDANCE WITH ISO-28927-10 2011, EN 12096
MEASURED VIBRATION EMISSION VALUE: 3-AXIS ....................................................................... 17.7 M/SEC²
UNCERTAINTY: K................................................................................................................................. 1.4 M/SEC²
MEASURED VIBRATION EMISSION VALUE WITH UNCERTAINTY: 3-AXIS................................... 19.1 M/SEC²
MEASURED VIBRATION EMISSION VALUE: Z-AXIS....................................................................... 16.0 M/SEC²
UNCERTAINTY: K................................................................................................................................. 1.2 M/SEC²
MEASURED VIBRATION EMISSION VALUE WITH UNCERTAINTY: Z-AXIS................................... 17.2 M/SEC²
ACCESSORIES
DRILL STEELS FOR USE WITH AIR
1 in. Hex × 4-1/4 in. H Thread, 24 in. / 61 cm UC..............................................................................................05170
1 in. Hex × 4-1/4 in. H Thread, 36 in. / 91 cm UC..............................................................................................04915
1 in. Hex × 4-1/4 in. H Thread, 48 in. / 122 cm UC............................................................................................05171
7/8 in. Hex × 4-1/4 in. H Thread, 24 in. / 61 cm UC...........................................................................................05174
CARBIDE ROCK BITS FOR USE WITH AIR (SHOULDER DESIGN)
1-3/8 in. Diameter H Thread..............................................................................................................................05177
1-1/2 in. Diameter H Thread..............................................................................................................................05178
UC denotes dimension measured from bottom tip of tool to bottom surface of collar.
SERVICE TOOLS
O-ring Tool Kit....................................................................................................................................................04337
Accumulator Disassembly Tool..........................................................................................................................05508
Accumulator Cylinder Puller ..............................................................................................................................05640
Split Rings .........................................................................................................................................................04908
Flow Sleeve Removal Tube...............................................................................................................................04910
Bearing Installation Tool ....................................................................................................................................05044
Bearing Installation Tool ....................................................................................................................................05061
Latch Removal Tool...........................................................................................................................................05045
Latch Installation Tool........................................................................................................................................05879
Collet, 7/8 in.......................................................................................................................................................05871
Latch Installation Tool........................................................................................................................................05062
16 ► SK58 User Manual
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SK58 PARTS ILLUSTRATION
SK58 User Manual ◄ 17
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SK58 PARTS LIST
PART
ITEM NO.
PART
ITEM NO.
QTY DESCRIPTION
QTY DESCRIPTION
1
04763
1
AIR TUBE
(SK58110/SK58130/SK58310 ONLY)
43
44
45
46
47
48
49
50
51
52
53
54
04778
00016
00175
04660
00772
07291
04512
04764
00106
04765
04767
05202
1
1
1
1
1
1
1
1
1
1
1
1
BLOWER TUBE NUT
O-RING *
04965
07064
04964
01714
04786
04794
04147
04718
04902
04751
04793
04775
04052
04051
—
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
1
1
1
1
1
1
1
WATER TUBE (SK58120 ONLY)
VENT PLUG
O-RING *
2
HOUSING
3
HANDLE GRIP ASSEMBLY
NUT HEAVY HEX JAM
WASHER
KEY
4
MODIFIED CAPSCREW
RETAINING RING
SWIVEL FITTING
O-RING *
5
6
O-RING *
7
LOCKNUT
8
VALVE LEVER
INLET SWIVEL BODY
STREET ELBOW 45°
9
RETAINING RING
WASHER
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
VALVE-AIR ONLY
(SK58110/SK58130/SK58310 ONLY)
KAP SEAL *
CHARGE VALVE CAP
O-RING *
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
04801
04066
04571
04067
03786
05152
04721
04761
04759
04758
04756
04075
01217
04748
00783
04788
03826
04033
01277
00713
04744
04784
06267
05195
04787
04373
04774
23395
23399
04769
1
1
2
4
1
1
1
1
1
1
1
4
2
1
1
2
2
1
1
2
1
1
1
1
1
4
1
2
2
1
HOSE ASSEMBLY
AUTOMATIC VALVE BODY
PUSH PIN
CHARGING VALVE
O-RING (INCLUDED W/ ITEM 14)
PIPE PLUG
PUSH PIN
00955
01411
04772
01605
04054
04060
04059
04779
04780
04386
04750
06268
GPM STICKER
O-RING *
STANLEY STICKER
LATCH CASTING
RETAINING RING
SPRING BACK-UP
COIL SPRING
ORIFICE PLUG
O-RING *
O-RING *
ACCUMULATOR CYLINDER
ACCUMULATOR DIAPHRAGM
ACCUMULATOR CHAMBER
BACK UP WASHER
CUP SEAL *
LATCH WASHER
SIDE ROD NUT
CAPSCREW
MOTOR PLATE
WASHER
PIPEPLUG
TUBE SEAL
(SK58120/SK58130 ONLY) *
DU BEARING
DU BEARING
29
04734
06265
04068
07889
04065
07890
01652
04781
02688
04792
02003
04771
04791
04795
04777
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
PISTON (SK58110 / SK58130)
PISTON (SK58120 / SK58310)
FLOW SLEEVE TUBE
FLOW SLEEVE
AUTOMATIC VALVE
ROLL PIN
IDLER GEAR
O-RING *
30
31
32
33
34
35
36
37
38
39
40
41
42
DOWEL PIN
DRIVE MOTOR CHAMBER
DRIVE HEX (SK58110 ONLY)
DRIVE HEX (SK58120/SK58310 ONLY)
DRIVE HEX (SK58130 ONLY)
WOODDRUFF KEY
SIDE ROD
PIGTAIL HOSE ASSEMBLY
INLET FLANGE
CAPSCREW
77
78
79
80
81
82
KAP SEAL *
GASKET *
O-RING*
QUAD RING *
WASHER
BACK-UP RING *
KAP SEAL *
DRIVE MOTOR CONTROL BLOCK
(SK58110/SK58130/SK58310 ONLY)
O-RING *
THROTTLE VALVE
06266
1
DRIVE MOTOR CONTROL BLOCK
(SK58120 ONLY)
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SK58 PARTS LIST
PART
ITEM NO.
QTY DESCRIPTION
83
00634
01362
01605
18643
04753
04773
04783
04073
30890
04755
04790
03009
02688
03047
04754
04789
04752
05641
00026
04776
02754
04768
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
NYLON CAP LOCK
O-RING *
84
85
O-RING *
86
SETSCREW
87
MOTOR CONTROL KNOB
VALVE GUIDE
88
89
MOTOR CONTROL VALVE
O-RING *
90
91
ROD SEAL *
92
SEAL WASHER
CUP SEAL *
93
94
ROLL PIN
95
HSHCS
96
ROLL PIN
97
THRUST BACK-UP WASHER
THRUST WASHER
DRIVE GEAR
98
99
100
101
102
103
104
O-RING *
O-RING *
TUBE CONNECTOR
NAME TAG
WATER VALVE (SK58120 ONLY)
04805
SEAL KIT
SK58110 – 1 INCH × 4-1/4 HEX SHANK AIR
SK58120 – 1 INCH × 4-1/4 HEX SHANK WATER
SK58130 – 7/8 INCH × 4-1/4 HEX SHANK AIR
SK58310 – 1 INCH × 4-1/4 HEX SHANK AIR, UNDER-
WATER USE
NOTE:
USE PART NUMBER AND PART NAME WHEN OR-
DERING.
* DENOTES PART OF SEAL KIT P/N 04805
SK58 User Manual ◄ 19
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UNDERWATER TOOLS DEPTH GUIDELINE
UNDERWATER MODELS ONLY
Operation Overview
CAUTION
Percussive
Tools: Breakers,
Hammer Drills and
Chipping Hammers
Rotational
Tools: Grinders,
Saws, Chain Saws
DO NOT USE HYDRAULIC TOOLS UNDER-
WATER THAT ARE NOT DESIGNATED AS
AN “UNDERWATER” MODEL, OR THIS
WILL RESULT IN DAMAGE TO THE TOOL.
Max Depth: 1000' -
Reference hose
sizing guide below
Max Depth: 500' -
limitations due to
accumulator PSI
max (increase 40
PSI for every 100')
For underwater hydraulic tools the applications are
broken down into four quadrants depending on
type of tool and method of operation.
Tools: Breakers,
Hammer Drills and
Chipping Hammers
Tools: Grinders,
Saws, Chain Saws
The types of tools are percussive and rotational,
each with different characteristics allowing for dif-
ferent depth operation. With percussive tools, the
nitrogen accumulator PSI must counter the in-
crease in ambient pressure found at lower depths.
Since there is a maximum PSI for percussive tools
they are limited to certain depths. Rotational tools
do not have accumulators and thus capable of
deeper depths.
Max Depth: 1000' -
Reference hose
sizing guide below
Max Depth: 500' -
limitations due to
accumulator PSI
max (increase 40
PSI for every 100')
The methods are broken into diver operated or
remote operated vehicle (ROV). ROV's can reach
lower depths and with an on-board hydraulic
power source that is depth compensated, can
operate hydraulic tools at depths of thousands of
feet. ROV operation is still limited to the tool, for
example a percussive tool has the same depth
limitation whether ROV or diver operated.
Recommended Hose Diameters
Depth (ft)
100
8 GPM
5/8”
3/4”
1”
12 GPM
5/8”
300
1”
600
1”
1000
1”
1-1/4”
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NOTES
SK58 User Manual ◄ 21
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Stanley Hydraulic Tools
3810 SE Naef Road
Milwaukie, Oregon 97267-5698 USA
(503) 659-5660 / Fax (503) 652-1780
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