WALK-BEHIND SPREADER
50 LB. CAPACITY
Model 99623
ASSEMBLY, OPERATINg, AND MAINTENANCE
INSTRuCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
Distributed exclusively by Harbor Freight Tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANuAL.
©
®
Copyright 2008 by Harbor Freight Tools . All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
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2. Do not use in rain.
10. Keep guards in place and in working
order.
3. Keep children away - All visitors
should be kept at a distance from
work area.
general Safety
1. Do not exceed the maximum weight
capacity (50 pounds) of the Spread-
er.
4. When servicing use only identical
replacement parts.
5. Use the right equipment - Do not use
appliance for any job except that for
which it is intended.
2. Use this product only with powdered
and granular fertilizers, seed, sand,
and ice-melt products.
6. Do not force this equipment - It will do
the job better and with less likelihood
of injury at the rate for which it was
designed.
3. Never leave contents in the Spreader.
Pour leftover material back into its
package and seal the package tightly.
Never allow children or pets near any
materials you apply.
7. Store idle equipment indoors - When
not in use, gardening equipment
4. Always follow the fertilizer manufac-
turer’s instructions for proper use of
the fertilizer.
should be stored indoors in a clean,
dry location out of reach of children.
8. Maintain this product with care - Keep
this product clean for best perfor-
mance and to reduce the risk of
injury. Follow instructions for mainte-
nance. If damaged, have this product
repaired by an authorized service
facility. Keep handle dry, clean, and
free from oil and grease.
5. Do not use appliance for other than
intended use.
6. Maintain labels and nameplates on
the Spreader. These carry important
safety information. If unreadable or
missing, contact Harbor Freight Tools
for a replacement.
9. Check for damaged parts - Before
further use of this product, a guard
or other part that is damaged should
be carefully checked to determine
that it will operate properly and per-
form its intended function. Check for
alignment of moving parts, binding of
moving parts, breakage of parts, and
any other condition that may affect its
operation. A guard or other part that
is damaged should be properly re-
paired or replaced by a qualified tech-
nician unless indicated elsewhere in
this manual.
7. The warnings, precautions, and in-
structions discussed in this instruction
manual cannot cover all possible con-
ditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
SAVE THESE
INSTRuCTIONS.
SKU 99623
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SPECIFICATIONS
Designed for spreading
powdered and granular fertilizer,
seed, sand, and ice-melt
products.
SCREWS
(43)
Product Applications
FRAME
(30)
Hopper Capacity
Tires
50 Pounds (Dry)
HOPPER
(16)
4.10/3.50-6 / 24 PSI / Qty. 2
Molded Polypropylene Hopper &
Spreader Impeller.
Steel Tubular Frame & Handle.
Pneumatic Tires.
FIguRE A
Construction Materials
uNPACKINg
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown on the cover of this manual as soon
as possible.
2. Attach the Impeller (42) to the Gear
Box & Axle Assembly (39). To do
so, insert the Screw (41) through the
Impeller, then through the Gear Box
Axle. Use the hole nearest the Gear
Box. Then tighten the Screw.
ASSEMBLY INSTRuCTIONS
Read the ENTIRE IMPORTANT
SAFETY INSTRuCTIONS
section at the beginning of this
manual including all text under
subheadings therein before
assembly or use of this
product.
(See Figure B.)
IMPELLER
(42)
FIguRE B
SCREW
(41)
Note: For additional information regarding
the parts listed in the following pages, refer
to the Assembly Diagram near the end of
this manual.
gEAR BOX
&
AXLE ASSY.
(39)
1.
Turn the Hopper (16) upside down
and install the Frame (30), using four
Screws (43). (See Figure A.)
3. Install the Wheel Assembly Frames
(20) on each side of the Gear Box
SKU 99623
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Axle (39). Insert a Hex Bolt (32)
through both Wheel Assembly
Frames and the Hopper Frame (30).
Then secure the Wheel Assembly
Frames to the Hopper Frame, using
two Lock Nuts (24). NOTE: Do not
tighten hardware at this time.
(See Figure C.)
LOCK NuT
(24)
CROSS BRACE
FIguRE D
(45)
FRAME BRACE
(31)
BOLT
(33)
BOLT
(11)
HOPPER
(16)
gEAR BOX & AXLE
(39)
WHEEL ASSY. FRAME
(20)
HEX BOLT
(32)
LOCK NuT
(24)
5. Slide an Axle Bushing (37) over the
Axle (39) and into an Axle Bearing
(38) on both ends of the Axle. Install
a Wheel (36) on each end of the Axle
and secure the Wheels using two Hex
Bolts (47) and two Hex Lock Nuts (44).
Then install a Flat Washer (34) and
End Cap (35) for each Wheel.
HOPPER
(16)
FIguRE C
4. Attach one end of the Frame Braces
(31) to the Hopper Frame (30), us-
ing two Bolts (33) and two Lock Nuts
(24). Then attach the other ends of
the Frame Braces, with the Cross
Brace (45) positioned between the
Frame Braces, to the Wheel Assem-
bly Frame (20), using two Bolts (11).
NOTE: Do not tighten hardware at
this time. (See Figure D.)
(See Figure E.)
WHEEL
(36)
END CAP
(35)
AXLE BuSHINg
(37)
HEX BOLT
(47)
THREADED
HOLE
FLAT
WASHER
(34)
FIguRE E
Note: Find the threaded hole in one
side of Axle. Install a Wheel (36) on
this end of the Axle and secure the
Wheel using one Hex Bolt (47) and
one Lock Nut (44). Then install a Flat
Washer (34) and End Cap (35) for this
Wheel. Install the other Wheel on the
Axle and secure it in place with a Flat
Washer (34) and End Cap (35).
HEX
LOCK NuT
(44)
HOPPER
(16)
REV 09b
SKU 99623
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6. Insert the Handle Shaft (26) between
the two Wheel Assembly Frames
(20). Attach the Pivot and Bracket
Assembly (19) to the Wheel Assem-
bly Frames and Handle Shaft, using
two Bolts (11) and two Nuts (21).
(See Figure F.)
HANDLE SPACER
(1)
uPPER
HANDLE
(23)
FLAT WASHER (48)
NuTS (21)
gAugE
& LEVER
ASSY.
(4)
BOLT
(11)
FIguRE g
HANDLE SHAFT
(26)
NuT
(21)
PIVOT
&
BRACKET
ASSY.
(19)
BOLT
(11)
HOPPER
(16)
WHEEL ASSY.
FRAME
8. Unscrew and remove one Lock Nut
(24) from the Control Rod (25). Insert
the threaded portion of the Control Rod
into the hole in the Pivot and Bracket
Assembly (19). Then re-thread the
Lock Nut back onto the Control Rod.
(See Figure H.)
(20)
FIguRE F
7. The Upper Handle (23) features
three positions for operating comfort.
To use the middle or upper positions,
place the Handle Spacer (1) between
the mounting holes nearest to the
Handle Covers (15). Insert a Bolt
(11) through the Upper Handle (23),
through the Handle Spacer, through
the other Upper Handle and secure
with a Flat Washer (48) and Nut (21).
Install the Gauge & Lever Assembly
(4) on the left hand side, using two
Bolts (11) and two Nuts (21).
FIguRE H
CONTROL ROD
(25)
PIVOT & ASSY.
BRACKET
(19)
LOCK
NuT
(24)
(See Figure g.)
9. Insert the Adjust Connect Rod (46) into
the Shut Off Plate (27). Then secure
the Adjust Connect Rod to the Shut Off
Plate, using one Flat Washer (48) and
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one Lock Nut (24).
(See Figure I.)
12. Pull up on the Adjust Handle (6) to its
upper position, making sure the holes
in the Hopper (16) and the holes in the
Shut Off Plate (27) are 100% open.
(See Figure J.)
HOPPER
(16)
13. Adjust the position of the Wing Nut
(10). By doing so, you are able to con-
trol the size of the holes you need.
(See Figure J.)
FIguRE I
14. Insert the “R” Pin (17) into the Pinion
Shaft on the Gear Box and Axle As-
sembly (39). Make sure the Impeller
(42) is turning in the correct direction as
indicated by the arrow in the illustration.
(See Figure J.)
FLAT
WASHER
(48)
LOCK
NuT
(24)
SHuT OFF PLATE
(27)
OPERATINg INSTRuCTIONS
10. Push down on the Adjust Handle (6)
to its lowest position.
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section
at the beginning of this manual
including all text under
subheadings therein before
assembly or use of this product.
(See Figure J.)
“R” PIN
(17)
ADJuST
HANDLE
1. Before operating the Spreader make
sure to wear ANSI-approved safety
impact glasses, NIOSH-approved dust
mask/respirator, and heavy duty work
gloves.
(6)
PINION
SHAFT
WINg
NuT
(10)
FIguRE J
LOCK NuTS
(24)
“R” PIN (17)
2. Remove the Screen (14) on the Hopper
(16) and fill the Hopper with the materi-
al you wish to apply. Do not exceed 50
pounds of material. Then replace the
Screen. (See Figure K, next page.)
PuSH FORWARD.
IMPELLER MuST TuRN
IN THIS DIRECTION.
3. Refer to the manufacturer’s recom-
mended flow rate (0 to 5, typically
shown on the bag/container of the
material being applied).
11. Adjust the position of the two Lock
Nuts (24) on the Control Rod (25),
making sure the holes at the bottom
of the Hopper (16) line up with the
holes in the Shut Off Plate (27) prop-
erly. (See Figures I and J.)
4. Adjust the flow rate on the Gauge and
Lever Assembly (4) to that of the mate-
SKU 99623
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rial manufacturer’s recommendation. 10. Suggested walking pattern at full rate
To do so, move the Wing Nut (10) to
settings: (See Figure L.)
the proper setting. (See Figure K.)
5. Grip the Upper Handles (23) with
both hands, pull the Adjust Handle
(6) back and immediately begin
pushing the Spreader at a slow and
even rate over the area you wish to
apply. (See Figure K.)
FIguRE L
6. IMPORTANT: Always PuSH the
Spreader when applying material.
When pulled backward while the
Hopper (16) is open, the Spreader
may apply an excessive amount of
material. (See Figure K.)
FINISH
START
11. Suggested walking pattern at half rate
settings: (See Figure M.)
7. When finished applying the material,
push the Adjust Handle (6) forward
to stop the release of material being
applied. (See Figure K.)
FIguRE M
START
(1ST PASS)
uPPER HANDLES
(23)
SCREEN
(14)
HOPPER
(16)
ADJuST HANDLE
(6)
FINISH
(1ST PASS)
FINISH
START
(2ND PASS)
(2ND PASS)
WINg NuT
(10)
FIguRE K
8. Never leave material in the Spreader.
Pour leftover material back into its
bag/container and seal the bag/con-
tainer tightly.
9. To prevent accidents, wash thor-
oughly to remove all material in the
Spreader. Allow the unit to dry. Then
store the unit indoors out of children’s
reach.
SKU 99623
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2. AFTER USE, Never leave material in
the Spreader. Pour leftover material
back into its bag/container and seal the
bag/container tightly.
MAINTENANCE AND
SERVICINg
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
3. CLEANING AND STORAGE: wash
thoroughly to remove all material in the
Spreader. Allow the unit to dry. Then
store the unit indoors out of children’s
reach.
TO PREVENT
SERIOuS INJuRY
FROM TOOL FAILuRE:
Do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.
4. NOTE: This Spreader does not require
lubrication.
PLEASE READ THE
FOLLOWINg CAREFuLLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS
Inspection, Maintenance, and
PROVIDED THE PARTS LIST AND ASSEMBLy DIAGRAM IN
THIS MANUAL AS A REFERENCE TOOL ONLy. NEITHER
THE MANUFACTURER OR DISTRIBUTOR MAKES ANy
REPRESENTATION OR WARRANTy OF ANy KIND TO THE
BUyER THAT HE OR SHE IS QUALIFIED TO MAKE ANy
REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANy PARTS OF THE PRODUCT.
IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
ExPRESSLy STATES THAT ALL REPAIRS AND PARTS
REPLACEMENTS SHOULD BE UNDERTAKEN By CERTIFIED
AND LICENSED TECHNICIANS, AND NOT By THE BUyER.
THE BUyER ASSUMES ALL RISK AND LIABILITy ARISING OUT
OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR
REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS
OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Cleaning
1. BEFORE EACH USE, inspect the
general condition of the Spreader.
Check for loose screws, misalign-
ment or binding of moving parts,
cracked or broken parts, and any
other condition that may affect its
safe operation.
TROuBLESHOOTINg
Problem
Possible Cause(s)
Possible Solution(s)
Unit will not release material.
1. Improper use of Adjust Handle.
1. Pull Adjust Handle backward to
release material. Push forward
to stop flow of material.
2. Make sure Adjust Handle setting
is adjusted to that of material
manufacturer’s recommended
setting.
2. Improper flow rate setting.
3. Wet, or wrong type of materal.
3. Unit is designed only for dry,
powered, and granular material.
Unit releases too much or too little
material.
1. Improper flow rate setting.
1. Make sure Adjust Handle setting
is adjusted to that of material
manufacturer’s recommended
setting.
Follow all safety precautions whenever diagnosing or servicing the Spreader.
SKU 99623
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PARTS LIST
Part #
Description
Qty.
2
Gear Box & Axle Assembly
REV 09b
SKU 99623
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ASEMBLY DIAgRAM
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
SKU 99623
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