Instructions -- Parts List
Hydra--CleanR 4043, 16 HP Engine
Hydra--Cleanr 4043
Pressure Washer
308532S
P/N 800707, Series B
4000 psi (27.6 MPa, 276 bar) Operating Pressure
4300 psi (29.6 MPa, 296 bar) maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for Table of Contents.
6811B
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
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WARNING
HAZARDOUS FLUIDS
Improper handling of hazardous fluids can cause serious injury, even death, due to splashing in eyes,
ingestion or bodily contamination.
D Know specific hazards of fluid being used.
D Store hazardous fluids in approved containers. Dispose of hazardous fluids per local, state and
national guidelines.
D Wear protective eyewear, gloves, clothing, and respirator as recommended by fluid manufacturer.
FUEL HAZARD
The fuel used in this unit is combustible and when spilled on a hot surface can ignite and cause a fire.
D Do not fill fuel tank while engine is running or hot.
EXHAUST HAZARD
The exhaust contains poisonous carbon monoxide which is colorless and odorless.
D Do not operate this equipment in a closed building.
EQUIPMENT MISUSE HAZARD
Misuse of pressure washer or accessories may cause them to rupture and result in fluid injection,
splashing in eyes or on skin, or other serious injury.
D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
D Do not exceed maximum working pressure of any component or accessory in system.
D Do not use any chemicals that are incompatible with wetted parts as stated in Technical Data.
D Do not alter throttle setting.
308532
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Component Identification and Function
Typical Installation -- Pressure Washer
G
A
B
F
L
K
E
M
H
J
D
C
06812
6811B
Fig. 1
A
B
C
Engine
16 horsepower, operates pump assembly
Pump Assembly
Filter
Pressurizes fluid to be sprayed through spray gun
Screens out debris and other material between supply connection and
pump.
D
E
F
Water Supply Connection
High Pressure Hose Connection
Spray Gun
Water supply connection for pump
Hose and spray gun connection
High pressure spray gun with gun safety latch
Variety of spray tips depending on job needs
Prevents accidental triggering of spray gun
G
H
J
Spray Tip
Spray Gun Safety Latch
Spray Hose
50 ft (15 m), 3/8 in. ID, grounded hose with hose bend restrictors on
both ends
K
L
Unloader
Relieves fluid pressure when open
Unloader Bypass Hose
Hose Rack
Provides bypass loop when unloader valve is open
Provides storage for spray hose
M
4
308532
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Setup
Check for Shipping Damage
Connect to Water Supply
Check the unit for any damage that may have occurred
in shipping. Notify the carrier immediately if there is
any damage.
CAUTION
Before attaching to the water supply, check your
local plumbing code regarding cross--connection to
the water supply. Use a backflow preventer if
required by local code.
Set Up
Charge the battery. Be sure the battery connections
are correct and secure. Connect the fuel line to the
engine using the quick coupler provided. Squeeze the
priming bulb 3 to 5 times. If you are using a down-
stream chemical injector, install it between the pump
unloader and the high pressure hose, using the quick
couplers provided.
Do not exceed 160_F (70_C) inlet water tempera-
ture.
Connect a hose with at least a 3/4 inch (19 mm) ID
from the water supply to the unit’s 3/4 inch garden
hose inlet. The supply hose should not be more than
50 ft (15 m) long.
Connect the high pressure hose between the pump
outlet and the gun inlet. Both of these connections are
made with quick couplers.
NOTE: The water source at the unit must have a
minimum flow rate equal to that of the unit (see
Technical Data, inside back cover).
CAUTION
Up to 100 ft (30 m) of high pressure hose may
be used. Longer hoses may affect sprayer perform-
ance, and chemical injector performance, if used.
Install the appropriate spray tip on the wand. See
Installing and Changing Spray Tips. If you are using a
sandblaster kit, see its separate manual for installation
instructions.
308532
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Operation
NOTE: This pressure washer is equipped with a
Pressure Relief Procedure
low--oil sensor that shuts the engine off if the oil
level falls below a certain level. If the unit stops
unexpectedly, check both the oil and the fuel
levels. Check the oil level each time the unit is
refueled.
WARNING
SKIN INJECTION HAZARD
System pressure must be manually
2. Check fuel level.
relieved to prevent system from starting
or spraying accidentally. Fluid under high
pressure can be injected through skin and cause
serious injury. To reduce risk of injury from injec-
tion, splashing fluid, or moving parts, follow Pres-
sure Relief Procedure whenever you:
WARNING
FIRE HAZARD
Do not refuel a hot engine. Refueling a
hot engine could cause a fire. Use only
fresh, clean regular or unleaded gaso-
D are instructed to relieve pressure,
D stop spraying for more than 10 minutes,
D check or service system equipment,
D install or clean spray nozzle.
line. Close fuel shutoff valve during refueling.
3. Turn on the water supply.
CAUTION
Never run unit dry. Costly damage to pump will
result. Always be sure water supply is sufficient
before operating.
1. Engage trigger safety latch.
2. Turn sprayer off.
4. Trigger the gun until water sprays from the tip
indicating that the air is purged from the system.
3. Remove ignition cable from spark plug.
4. Remove siphon tube from water supply.
5. Open the fuel shutoff valve. Be sure the spark plug
ignition cables are pushed firmly onto the spark
plugs. Put the ignition shutoff switch in the “on”
position and the throttle in the “run” position.
6. Start the engine.
5. Disengage trigger safety latch and trigger gun to
relieve pressure. Engage trigger safety latch.
NOTE: For easier starting, have one person start the
pressure washer while another person triggers
the spray gun.
6. If spray tip or hose is completely clogged, or
pressure has not been fully relieved after following
steps above: Disengage trigger safety latch and
trigger gun to relieve pressure. Wrap rag around
hose end coupling and VERY SLOWLY loosen
coupling to relieve pressure gradually, then loosen
completely. Now clear tip or hose.
If the engine is cold, completely close the engine
choke. Press the start button. In cool weather, the
choke may have to be kept closed for 10 to 30
seconds before opening it to keep the engine
running. Otherwise, open the choke as soon as the
engine starts.
If the engine is warm, leave the choke open or
partially closed. Start the engine as described in the
preceding paragraph. When the engine starts, be
sure to open the choke completely.
Startup
7. ALWAYS engage the gun’s trigger safety latch
whenever you stop spraying, even for a moment,
to reduce the risk of fluid injection or splashing in
the eyes or on the skin if the gun is bumped or
triggered accidentally.
1. Check oil levels.
D
Engine: Add SAE 30 or 10W--30 weight deter-
gent oil as necessary.
D
Pump: Add SAE 20 or 30 weight non--deterg-
ent oil.
8. ALWAYS observe the following CAUTIONS to
avoid costly damage to the pressure washer.
6
308532
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Operation
CAUTION
Pressure washer is equipped with a thermal relief
valve. If pressure washer is operated without
spraying for an extended period (approximately 10
minutes) the valve will expel hot water.
Do not operate pressure washer with inlet water
screen removed. Keep screen clean. Screen keeps
abrasive sediment out of pump, Abrasive sediment
can clog pump or damage cylinders.
04612
Do not pump caustic materials; such materials may
corrode pump components.
TRIGGER SAFETY LATCH SHOWN ENGAGED
Figure 2a
9. See the chemical injector or sandblaster kit manu-
al for detailed cleaning information if these acces-
sories are used.
Trigger Safety Latch
WARNING
To reduce risk of serious bodily injury, including
fluid injection, splashing in eyes or on skin, always
engage trigger safety latch when spraying is
stopped, even for a moment. In engaged position,
trigger safety latch prevents gun from being trig-
gered accidentally by hand or if dropped or
bumped. Be sure to push down latch fully to en-
gage it. If latch not fully engaged, gun can acciden-
tally trigger. See Figures 2a and 2b.
04612
TRIGGER SAFETY LATCH SHOWN
DISENGAGED
Figure 2b
308532
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Operation
2. Point the gun and wand away from yourself and
Installing and Changing Spray Tips
anyone else.
WARNING
To reduce risk of serious bodily injury, including
fluid injection or splashing in eyes or onto skin, use
extreme caution when changing spray tips. always
follow procedure below.
3. Without holding your hand over the spray tip (A),
pull back the quick coupler ring (B). Remove the
old tip and/or install a new one, and then release
the ring. See Figure 3.
4. Be sure the tip is secure before starting to spray
again.
1. Follow the Pressure Relief Procedure.
5. Tip holding holes are provided on the chassis.
CAUTION
To avoid blowing o-ring out of quick coupler, due to
high pressure in system, never operate pressure
washer without tip securely mounted in quick
coupler.
04929
B
A
Figure 3
8
308532
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Shutdown, Flushing, and Storage
Maintenance
CAUTION
Do not expose pressure washer to freezing tem-
Observing regular maintenance intervals helps ensure
that you get maximum performance and life from the
pressure washer.
peratures or allow water to freeze in pressure
washer components. If water freezes in the pres-
sure washer, thaw it in a warm room before you try
to start it. Do not pour hot water on or into the
pump; it may crack the ceramic plungers!
There is a break--in period for the engine and pump. After
changing the oil in these components following their
respective break--in periods, the interval between
required changes is longer.
D Do not store unit outside where it will be exposed to
rain, dirt or adverse weather conditions.
If the unit is operating in dusty conditions, these
maintenance checks should be made more often.
D Before you store the pressure washer overnight or
transport it, disconnect the water supply, and turn
off the fuel supply valve.
WARNING
To reduce risk of serious bodily injury, including
fluid injection, splashing in eyes or on skin or injury
from moving parts, always follow Pressure Relief
Procedure on page 6 before proceeding.
D After each use, wipe all surfaces of the pressure
washer with a clean, damp cloth.
Engine:
1. Run engine until gas is gone or stabilize the fuel
and run it through the fuel system and carburetor.
2. Drain water out of pressure washer hose.
3. Turn fuel system to OFF position.
Pump:
Interval
What to do
Daily
Clean water inlet screen and
filter. Check engine and pump oil
levels. Fill as necessary. Check
gasoline level. Fill as necessary.
4. Attach one end of a 4 or 5--foot section of hose to
pump inlet and other end in an antifreeze solution
approximately 1--foot off the ground.
After first 5
hours of
operation
Change engine break--in oil.
Drain oil when warm. Use SAE
30 or 10W--30 detergent oil.
Each 25 hours
of operation
Clean and remove air cleaner
foam. Wash with water and
detergent. Dry thoroughly. Rub
with oil and squeeze to distribute
oil.
NOTE: An anti--freeze flush kit, P/N 802327, is
available to make flushing easier.
5. Pull pull--cord on engine until antifreeze comes out
of pump outlet.
After first 50
hours of
operation
Change pump break--in oil. Use
SAE 20 or 30 non--detergent oil
or genuine CATr pump oil.
Storage Location:
6. Store pressure washer in garage, basement or
other area where it is protected from freezing
temperatures.
Each 100 hours Clean or replace paper air
of operation
or 3 months
cleaner cartridge. Tap gently to
remove dirt. Change engine oil.
Use SAE 30 or 10W--30
detergent oil.
D After each use, wipe all surfaces of the pressure
Each 500 hours Change pump oil. Use SAE 20
washer with a clean, damp cloth.
of operation
or 6 months
or 30 non--detergent oil or
genuine CATr pump oil.
D Perform the appropriate maintenance. See Mainte-
nance Chart.
308532
9
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Troubleshooting
WARNING
To reduce risk of serious injury, including fluid injection and splashing in eyes, or on skin, always follow Pres-
sure Relief Procedure on page 6 before proceeding.
Problem
Cause
Solution
Engine will not start or No gasoline in fuel tank or carburetor.
is hard to start
Fill the tank with gasoline, open fuel shut off valve.
Check fuel line and carburetor.
Low oil level.
Add to proper level.
Start/Stop switch in Stop position.
Water in gasoline or old fuel.
Move switch to start position.
Drain fuel tank and carburetor. Use new fuel and
dry spark plug.
Loose or wrong battery connection.
Battery not properly charged.
Check and tighten battery connections.
Check electrolyte level of cells, recharge battery.
Choked improperly. Flooded engine.
Open choke and crank engine several times to
clear out gas.
Dirty air cleaner filter.
Remove and clean.
Spark plug dirty, wrong gap or wrong type.
Spray gun closed.
Clean, adjust the gap or replace.
Trigger spray gun.
Engine misses or
lacks power
Partially plugged air cleaner filter.
Spark plug dirty, wrong gap or wrong type.
Incorrect ignition timing.
Remove and clean.
Clean, adjust the gap or replace.
Time engine.
Low pressure and/or
pump runs rough
Worn or wrong size tip.
Inlet filter clogged.
Replace with tip of proper size.
Clean. Check more frequently.
Worn packings, abrasives in water or natural
wear.
Check filter. Replace packings. See PUMP
SERVICE.
Inadequate water supply.
Belt slippage.
Check water flow rate to pump.
Tighten or replace; use correct belts and replace
both at same time.
Fouled or dirty inlet or discharge valves. Even Clean inlet and discharge valve assemblies. Check
a small particle can cause the valve to stick.
filter.
Restricted inlet.
Worn inlet or discharge valves.
Leaking high pressure hose.
Check garden hose, may be collapsed or kinked.
Replace worn valves.
Replace high pressure hose.
Water leakage from
under pump manifold
Worn packings.
Install new packings. See PUMP SERVICE.
Water in pump
Humid air condensing inside crankcase.
Worn packings.
Oil seals leaking.
Change oil as specified in MAINTENANCE.
Install new packings. See PUMP SERVICE.
Install new oil seals. See PUMP SERVICE.
Frequent or
premature failure of
the packings
Scored, damaged or worn plungers.
Abrasive material in the fluid being pumped.
Inlet water temperature too high.
Overpressurizing pump.
Install new plungers. See PUMP SERVICE.
Install proper filtration on pump inlet plumbing.
Check water temperature; may not exceed 160_F.
Do not modify any factory--set adjustments. See
EQUIPMENT MISUSE HAZARD.
Excessive pressure due to partially plugged or
damaged tip.
Clean or replace tip. See Installing and Changing
Spray Tips.
Pump running too long without spraying.
Never run pump more than 10 minutes without
spraying.
Running pump dry.
Do not run pump without water.
Strong surging at the
Foreign particles in the inlet or discharge
Clean or replace valves. See PUMP SERVICE.
inlet and low pressure valve or worn inlet and/or discharge valves.
on the discharge side
10 308532
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Pump Service
3. Remove oil pan and slide out seal retainer withwicks.
Servicing the Valves
4. Using a wrench, loosen the plunger retainer. Grasp
ceramic plunger and push toward crankcase until
plunger retainer pops out.
1. Remove the hex valve plug.
2. Examine the o--ring under the plug for cuts or
distortion and replace if worn. Lubricate new o--ring
before installing.
5. Remove plunger retainer with copper gasket,
back--up Ring and o--ring.
3. Grasp valve retainer by tab at the top with pliers and
remove from valve chamber. Valve parts usually
separate during removal.
6. Remove plunger from plunger rod.
Note:
A special tool will be needed to remove the seat
from the manifold. A reverse pliers or a
standard vise grip and a 1/4” x 3” bolt tofit I.D. of
seat inserted under the edge of the seat, will pry
the valve seat out easily.
Reassembly:
1. Carefully examine each ceramic plunger for scoring
or cracks, replace if worn and slip onto plunger rod.
Note:
Ceramic plunger can only be installed one
direction (front to back). Do not force onto rod.
4. Examine all valve parts for wear and replace with
preassembled valve assembly in service kit
containing retainer, spring, valve, valve seat, o--ring,
and back--up ring.
2. Examine plunger retainer and stud and replace if
worn.
5. Grasp new valve assembly by tab at top with pliers,
immerse in oil and push into valve chamber. Be
certain valve assembly is square in valve chamber.
Note:
Thread stud into plunger retainer.
3. Examine o--ring, back--up ring and gasket on plunger
retainer and replace if worn or cut. Lubricate o--ring
for ease of installation and to avoid damaging
o--rings.
6. Apply Loctite 242 to valve plug, thread into manifold
port and torque per chart.
Note:
Corrosion Resistant models require the coil
spring installed in the Valve Plug.
Note:
First install gasket, then back--up ring and
o--ring.
Servicing the Pumping Section
4. Thread plunger retainer and stud assembly into
plunger rod. Exercise caution not to over torque.
Disassembly:
1. Remove the four (4) hex nuts or two (2) bolts from the
manifold (varies with model).
5. Saturate new oil wick by soaking in oil, place in seal
retainer and slip retainer over ceramic plunger.
2. Rotate crankshaft by hand to start separation of
manifold from crankcase. Support the underside of
the manifold and tap lightly with a mallet to remove
the manifold assembly.
6. Replace oil pan.
7. Turn shaft by hand to line up plungers so end
plungers are parallel.
8. Carefully slip manifold onto plungers, keeping
manifold level, and tap with mallet to bring manifold
flush with crankcase.
CAUTION
Keep manifold properly aligned with ceramic
plungers when removing to avoid damage to
either plungers or seals.
9. Replace washers and nuts or bolts and torque per
chart.
308532 11
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Pump Service
3. Examine seal case o--ring and replace if worn.
Servicing the Seals and V--Packings
Lubricate new o--ring before installing.
Disassembly:
4. Next secure high pressure seal into position by
threading seal case into manifold. Tighten seal case
with key wrench.
1. Remove the manifold as described.
2. With crankcase side of manifold facing up, unscrew
the seal case from the manifold using a special key
wrench.
Low Pressure Seal--All Models:
1. Examine seal for wear or broken spring and lace if
necessary.
3. Remove o--ring from seal case.
4. Remove snap ring and low pressure seal from the
seal case. Seals are generally removed easily
without any tools.
2. Install low pressure seal in seal case with garter
spring down.
3. Reinstall snap ring. Be certain snap ring is a tight fit.
Replace if it can be easily turned.
5. High Pressure Seal Models: The high pressure
seal is generally easily removed from the manifold
without any tools. If extremely worn a reverse pliers
may be used.
4. Replace manifold on pump as described and torque
per chart.
6. V--Packing Models: The female adapter, two
v--packings and male adapter are easily removed
from manifold without tools. If extremely worn a
reverse pliers may be used.
Servicing Crankcase Section
1. While manifold, plungers and seal retainers are
removed, examine crankcase seals for wear.
Reassembly:
2. Check oil level and for evidence of water in oil.
V--Packing Models:
3. Rotate crankshaft by hand to feel for smooth bearing
movement.
1. Lubricate high pressure packing area in manifold.
4. Examine crankshaft oil seal externally for drying,
cracking or leaking.
2. Insert male adapter with notches down and “v” side
up.
5. Consult factory or your local distributor if crankcase
service is evidenced.
3. Lubricate v--packings and install one--at--a--time with
grooved side down.
Torque Chart
4. Next install female adapter with grooved side down.
Pump Part Thread
Tool Size Torque
11 mm hex 80 in. lbs.
5. Examine seal case o--ring and replace if worn.
Lubricate new o--ring before installing.
Plunger
Retainer
M5
6. Thread seal case into manifold and tighten with key
wrench.
Manifold
M8 x 1.25 13 mm hex 125 in. lbs.
M10 x 1.25 17 mm hex 217 in. lbs.
High Pressure Seal Models:
M10
—
17 mm hex 217 in. lbs.
1. Lubricate seal area in manifold.
Valve
Covers
24 mm
75 ft. lbs.
2. Carefully square seal into position by hand with the
metal grooved side up.
27 mm
75 ft. lbs.
12 308532
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Notes
308532 13
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Pressure Washer -- Parts
37b
37
(REF)
57
106
107
37g
--
+
45
1
37h
2
19
47
(REF)
62
56
45
63
56
48
46
3
37h
6
100
50
4
6
51
39
SHEET 2
49
40
81
58
57
102
52
7
56
59
33
34
35
36
54
58
2
8
--
64
55
57
5
2
120
56
105
18
61
113
45
29
+
15
31
56
59
11
2
9
30
44a, 44h
44b
56
78
10
103
56
44c
44d
28
26
56
56
45
44e
24
2
16
44f
25
12
5
105
44g
17
18
13
21c
22
43
14
21h
42
21d
21f
21b
21e
41
21g
ti12860a
21a
14 308532
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Pressure Washer -- Parts
Model 800707, Series B
Ref.
No.
1
2
3
4
5
6
7
Part No.
108868
100214
803889
803943
100023
118241
803534
803926
803525
804282
801972
801550
100696
801020
800676
801556
800678
801546
108842
800160
Description
CLAMP, wire
WASHER, lock 5/16
BELT, drive
SHEAVE, engine
WASHER, flat 5/16
SCREW, flange, hex hd
LABEL, belt guard
BELT GUARD
Qty.
1
4
2
1
4
5
1
1
2
1
AR
2
2
2
1
1
1
Ref.
No.
44a
44b
44c
44d
44e
44f
44g
44h
45
46
47
48
49
50
51
52
55
56
57
58
59
61
62
63
64
78
80
81
82
83
84
85
86
87
88
89
90
91
92
97
100
103
104
105
106
107
109*
110
111
113
114
120
Part No.
801009
801957
802851
804470
804589
162485
801569
154594
111040
804356
804495
804376
803944
801898
801135
801959
115753
100527
100016
100015
100022
801958
803531
802127
107069
802275
803517
803508
801526
801523
801622
801111
801110
804051
402278
803141
159239
802534
800427
116461
801137
100450
101754
100133
100086
108050
804388
804275
801683
805634
100081
802305
Description
Qty.
1
1
1
1
1
1
1
1
13
1
1
1
1
1
1
1
1
5
3
4
2
1
1
2
1
2
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
4
1
1
1
1
1
1
1
4
. QUICK COUPLER, female 1/4
. SLEEVE, safety, 18 in.
. HANDLE, tee
. WAND, 32”
. GUN, spray (see manual 308511)
. NIPPLE, hex 3/8
. QUICK COUPLER, female 3/8,sst
. O--ring
NUT, lock 5/16--18
INSULATOR, vibration
LABEL, belt guard
SCREW, hex hd
SHEAVE, pump
HUB, engine
HUB, pump
TERMINAL PROTECTOR, black
BATTERY, 12 volt, 30 Amp
WASHER, flat 1/4
WASHER, lock 1/4
NUT, hex 1/4--20
BOLT, carriage 1/4--20 x 1
TERMINAL PROTECTOR, red
BASEPLATE, belt guard
BOLT, hex hd 5/16--18 x 1.75
BRACKET, battery
BOLT, hex hd 5/16--18 x 1.5
LABEL, prevent freezing
PUMP ASSEMBLY (see page 18)
BRACKET, mounting
NIPPLE, 1/2--14 x 2.0
CROSS, 1/2 npt
NUT, adapter
ADAPTER, garden hose
FILTER, inlet
PLUG, threaded, sq hd
HOSE, by--pass
8
9
BOLT, battery
10
11
12
13
14
15
16
17
18
19
21
BRACKET, battery
PAD, battery (size as required)
WHEEL & TIRE ASSEMBLY
WASHER, flat 1/2
NUT, lock 1/2--13
CHASSIS
AXLE
BRACKET, rail stiffener
SCREW, cap, hex hd, 3/8--16 x 1--1/4
SCREW, cap, hex hd
FRONT LEG ASSEMBLY
(includes 21a thru 21h)
. SCREW, Cap, Hex hd, 3/8--16 x 7
. WASHER, flat
. NUT, lock
. LEG, front
. BOOT
4
1
1
21a
21b
21c
21d
21e
21f
21g
21h
22
23
24
25
26
27
28
29
30
31
33
34
35
801531
100132
101566
801537
801506
801504
801505
801593
803906
800652
803925
803298
189919
290342
802016
801522
804500
801012
805543
805544
805545
805546
800665
1
1
1
1
1
1
1
1
1
. BUMPER, rubber
. RETAINER, spring
. SPRING
LABEL, model 4043
FUEL TANK ASSY (includes: 23a--23f) 1
HANDLE
SCREW, cap, hex hd,5/16--18 x 3--1/2 1
PLATE, designation
LABEL, artwork (not shown)
BRACKET, rail stiffener
SCREW, cap, hex hd
LABEL, chassis
GROMMET, rubber
TIP ASSEMBLY, 0004 (0° red)
TIP ASSEMBLY, 1504 (15° yellow)
TIP ASSEMBLY, 2504 (25° green)
TIP ASSEMBLY, 4004 (40° white)
ENGINE ASSY (partial breakdown,
items 37a thru 37h)
1
1
AR
1
2
1
5
1
1
1
FITTING, nipple
ADAPTER, 1/2 npt x 1/2 npsm
VALVE, unloader, 4000 psi
VALVE, thermal relief
KEY, square, 1/4 x 2.0
BOLT, hex hd, 5/16--18 x 1.0
PLUG, pipe
36
37
1
1
37a
37b
290013
803884
. LABEL, warning (not shown)
. ENGINE, 16 HP, Briggs &
Stratton, Vanguard OHC
. CONNECTOR, fuel
. CABLE, battery, 12” long
. CABLE, battery, 24” long
LABEL, artwork
1
1
WASHER, lock 3/8
WASHER, plain
37c
37g
37h
39
40
41
42
43
44
802908
801945
801946
803515
803516
804474
801569
801568
800429
1
1
1
1
1
1
1
2
1
WASHER, lock, spring
INJECTOR, chemical
TUBE, chemical injector
STRAINER, chemical injector
TIP, chemical injector
ADAPTER
COVER, unloader
HOSE, high pressure 3/8 x 50’
QUICK COUPLER, female, sst 3/8
QUICK COUPLER, male 3/8
GUN & WAND ASSEMBLY
(includes 44a thru 44g)
SCREW, cap, socket hd
308532 15
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Pressure Washer -- Parts
43
92
109*
89
114
91
110
80
90
81
88
87
86
85
97
111
84
83
82
104
2
120
*Note: Chemical Injector Repair Kit -- 244351
7544A
Hydra -Clean 4043 Pressure Washer (Sheet 2 of 2)
16 308532
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Notes
308532 17
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Pump Assembly -- Parts
27
29
28
26
33
32
12
30
31
23
22
34
19
a
c
25
24
d
22
21
35
39
40
14
41
20
15
18
15
14
13
12
9b
9a
9
e
d
53
4
54
17
c
b
a
16
a
51
52
b
c
e
f
3
g
42
d
1
2
4e
9a
04608
9b
18 308532
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Pump Assembly -- Parts
Model 803508, Series A
Ref.
Ref.
No.
Part No.
Description
Qty.
No.
Part No.
Description
Qty.
1
2
3
4
803504
801468
801469
801472
4a
4b
4c
4d
4e
803509
9a
9b
803283
803506
802500
803324
801473
803286
803501
801475
803144
803287
803288
802794
803289
803503
804484
803292
803507
MANIFOLD
1
8
8
1
6
6
6
6
6
1
6
6
8
1
2
2
1
1
1
1
1
1
6
1
3
3
3
5
1
29
30
31
32
33
34
802345
802793
801488
803294
801652
803510
GAUGE, sight
PLUG, oil drain
O-RING
SCREW, cap, socket hd
WASHER, lock
KIT, repair, plunger
(includes 34a, 34c, 34d)
RING, back up
O--RING
SCREW, piston
PLUNGER, ceramic
COVER, crankcase
SHIM
KIT, seal, oil -- Qty 2
KIT, Packing and Retainer
(includes 42a-- 42g)
O-RING
RETAINER
RETAINER, seal
RING, head
RING
PACKING, restop
V--PACKING
KIT, Packing Only,
(includes 42c, 42f and 42G)
PLUG, hex
WASHER, flat
PLUG, hex
1
1
1
6
6
SCREW, cap, hex hd
WASHER, lock
KIT, Valve (includes: 4a--4e)
O-RING
SEAT, valve
PLATE, valve
SPRING
GUIDE, valve
KIT, valve cap (includes 9a--9b)
O--RING
CAP, valve
SCREW, cap, socket hd
COVER, crankcase
O--RING, crankcase cover
BEARING, tapered roller
KIT, seal, oil -- Qty 3
BUSHING, piston
CRANKCASE
1
3
3
3
3
1
2
1
34a
34c
34d
803502
803505
803296
802511
803512
9
35
39
40
41
42
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
1
1
1
1
1
1
1
42a
42b
42c
42d
42e
42f
DIPSTICK
GASKET, cover
CRANKSHAFT
RING, retaining
KEY
PIN, wrist
GUIDE, piston
ROD, connecting
SCREW, cap, socket hd
COVER, crankcase
42g
803511
43
1
1
1
1
1
51
52
53
54
801482
801483
801484
801485
WASHER, flat
308532 19
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Accessories
Downstream Chemical Injector Kit 804387
Pressure Gauge Kit 248744
For injecting harsh cleaning chemicals downstream
from the pump. 800649 is stainless steel construction.
For viewing pump pressure.
Water Sandblasting Kit 800120
Upstream Chemical Injector Kit 800257
For abrasive cleaning of stubborn dirt and paint. Re-
quires a spray tip which is not included in kit (3540
uses 803107, 4043 uses 803107).
For injecting mild cleaning chemicals upstream into the
pump.
20 308532
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Technical Data
Model 800707
Engine (4 cycle, air--cooled)
Battery
16 HP Briggs & Stratton OHV
12 Volt, 30 AMP
250 CCA
Gasoline Tank Capacity
2.25 Gallon (8.5 Liter)
4000 psi (276 bar)
Water Pump Maximum Working
Pressure
Water Pump Maximum Flow
Inlet Hose Connection
Weight
4.25 gpm (16 lpm)
3/4” garden hose (f)
255 lbs (116 kg)
Dimensions
Length
49” (1245 mm)
30” (762 mm)
30” (762 mm)
Width
Height
Maximum Inlet Water
Temperature
160_F (70_C)
Wetted Parts
High Pressure Hose
Bypass Hose
Acrylonitrile and Buna--N cover and tube
Synthetic yarn and EPDM
Pressure Washer
(including fittings)
Anodized aluminum, Aluminum or bronze alloys, Brass Copper, Nylon--PTFE composite,
PTFE, Ceramic, Buna--N, Cotton phenolic, 303, 304, and 316 Stainless steel, Polymide--12
thermoplastic, Carbon steel, Zinc with or without yellow chromate plate
308532 21
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Graco Warranty
Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special extended or limited
warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment
determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in
accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or
substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance or structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does notdisclose anydefect
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and
transportation.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT
NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, gas engines,
switches, hose, etc.), are subject to the warranty, if any,of theirmanufacturer. Graco willprovide purchaserwith reasonableassistance
in making any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties
reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures
judiciaires exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.
ADDITIONAL WARRANTY COVERAGE
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty
Program.”
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1--800--690--2894 Toll Free
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
This manual contains English. MM 308532
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
3/1991 Rev. 09/2008
22 308532
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