TM
Instruction Manual
Direct Drive & 5:1 Gear Reduction
Under Tailgate Spreaders
NOTE: This manual applies to spreaders with a
top screen.
Table of Contents
Warranty Information ............................................... 1
Spreader Installation Instructions ........................ 1,2
Spreader Installation Drawing ................................. 2
Spinner Assembly Instructions ................................ 3
Spinner Assembly Drawing ...................................3,4
Hydraulics Installation ............................................. 4
Operating Instructions ...........................................5,6
Recommended Maintenance .................................... 6
Parts list: Spreader Assembly .................................. 7
Spreader Parts Drawing ........................................... 7
Parts List: Hardware Box ......................................... 8
Spinner Components Drawing ................................. 8
Auger Replacement Kits ........................................... 8
UNDER TAILGATE SPREADER WARRANTY
This warranty replaces all previous warranties and no employee
of this company is authorized to extend any additional warranties, or agreements, or implications not explicitly covered herein.
Buyers Products Company warrants all par ts of the product to
be free from defects in material and workmanship for a period of
(1) one year from the date of original installation. Parts must be
properly installed and used under normal conditions. Normal wear
is excluded.
Any part which has been altered, including modification, misuse,
accident, or lack of maintenance will not be considered under this
warranty. Hydraulic units are not to be disassembled without
the express written permission from Buyers Products Company.
The sole responsibility of Buyers Products Company under this
warranty is limited to repairing or replacing any part(s) which
are returned, prepaid, 30 days after such defect is discovered,
and returned part(s) are found to be defective by Buyers Products
Company.
Authorization from Buyers Products Company must be obtained
before returning any part. The following information must accompany defective parts returned to Buyers Products Company: RMA#,
spreader model, serial number, date installed, and distributor from
whom it was purchased. Buyers Products Company shall not be
liable for damage arising out of failure of any unit to operate properly, or failure, or delay in work, or for any consequential damages.
No charges for transpor tation or labor performed on any part will
be allowed under this warranty.
9049 Tyler Blvd. • Mentor, Ohio 44060
Phone (440) 974-8888 • Fax (440) 974-0165
Toll-Free Fax 800-841-8003 • saltdogg.com
Installation Instructions
NOTE: The left and right end plates may, on
occasion, get bent through improper handling
during shipment or storage. If this should happen, square and true the left and right end plates
before installation.
1. Aligning the spreader:
A. Position the spreader with the truck such that
the auger drive is located on the right side of the
truck (passenger side).
B. Lift the spreader up and under the dump body
tailgate, positioning the spreader forward as close
as possible to the dump body. The tailgate of the
dump body should lay down horizontally over the
spreader.
C. Support the spreader solidly and securely when
positioning for mounting.
2. Attach mounting brackets (See hardware
installation drawing on page 2.)
A. Attach a quick detach plate, (Item 1) to both
sides of the spreader frame using hinge pins (Item
2) and a hairpin cotter pins (Item 5).
B. Position the (2) quick detach plates over the
dump body rub rails and flush with rear edge of
dump body.
C. Weld the (2) quick detach plates to the dump
body rub rails. Weld the plates continuously around
(3) sides of each plate. Do not weld along the edge
of the plates next to the attachment pin.
1
—continued inside
5
TM
Mounting Hardware Installation Drawing
4
3
2
SPREADER
FRAME
1
NOTE: Lockout hardware
is not shown
D. Align the pin brace (Item 4) on the dump body
using the iron brace (Item 3) for exact positioning.
For proper fit, hanger iron brace may require some
minor bending.
E. Weld the (2) pin braces (Item 4) to the dump
body sides, all around.
F. Attach the iron braces (Item 3) to the pin braces
on the sides of the dump body and the sides of the
spreader using (2) hairpin cotter pins (Item 5).
DUMP BODY
Bill of Materials
ITEM QT Y. DESCRIPTION CARBON STAINLESS
1 2 Quick Detach Plate
2 2 Hinge Pin
3 2 Hanger Iron Brace
4 2 Pin Brace
5 6 Hair Pin Cotter 5/32"
924F0102 3009526
924F0103 3011139
924 F0101 3011137
9240021B 3000210
— —
G. If there is a gap between the spreader and the
dump body, weld or bolt a steel strip to the forward
edge of the spreader to cover the gap.
H. If you have purchased the tailgate side shields
(purchased separately as P/N 924F0106PR or
924F0106SSPR, Stainless), bolt or weld them to the
inside of the tailgate to prevent material spillage at
the ends of the spreader.
2
TM
Linkage
3. Spinner assembly installation: (See installation
drawings on pages 3 and 4.)
A. Attach the spinner shield (Item 2) to the spinner
frame (Item 1) using (2) 5/16-18 x 1-1/4 cap screws,
5/16 flat washers and (2) 5/16-18 hex flange nuts.
B. Attach the spinner disk sub assembly to the
hydraulic motor on the spinner frame and tighten
the set screw in the disk collar.
Note: Be sure to lubricate the hydraulic motor
shaft generously with Never Seez lubricant before
assembling.
C. Attach the spinner frame assembly to the lower
tray of the spreader with the hinge rod and attach
(2) hairpin cotter pins.
D. The leveling mechanism may now be mounted.
Park truck on flat, level surface. With spinner
assembly in level position, carefully measure “L”
and “D” distances. Use any of 3 available holes in
height adjustment bracket. Locate bar or spinner
lug such that ½” hole will position with D1=D and
L1=L. Modify angle if necessary.
Parallel Linkage, Spinner Frame & Bar
Installation Drawings
Spreader
Hinge Rod
Truck Frame
Spinner
Frame
Spinner Lug or Bar
E. Secure bar or spinner lug to the truck frame.
F. Attach parallel linkage rods to heights
adjustment bracket and angle. Secure them using
½” washers and hair pins.
G. Clamp parallel linkage rods together. To verify
leveling action, slowly raise the dump. Be sure that
spinner motor assembly and linkages do not have
any interference with truck body and it does not
have contact with the road. After checking weld
parallel linkage bars together.
H. Keeping the spinner assembly level, remove
the set screw from the clamp collar and secure
the spinner frame in place using the spinner
assembly lock.
Dump Body
Hinge
L1
Bar
L
Parallel
Hole
3
TM
3/4" (1) Wire Hos e
Parallel Linkage, Spinner Frame & Bar Installation Drawings (cont.)
Bill of Materials
ITEM QT Y. DESCRIPTION CARBON STAINLESS
1 1 Spinner Frame Assy.
2 1 Spinner Shield
3 1 Spinner Disk Assy.
4 2 Linkage Rods, Welded
30 2018 4 3018 416
92 4F0 015 3006659
30 0 14 7 2A 3 0 014 72 A
92 4F 0 012 92 4F 0 012
3
ITEM QT Y. DESCRIPTION CARBON STAINLESS
5 1 Hinge Rod
6 1 Spinner Lug
7 1 Bar
8 1 Height Adjustment Bracket
92 4F 0 018 300664 6
92 4F 0 013 300 6645
92 4 F 0014 9 2 4 F 0 014
30 2018 5 3017 175
2
1
Hydraulic Installation Instructions
A. During assembly take precautions to keep all
hydraulic components as clean as possible.
B. Allow enough hose length to prevent kinking
and stretching of the hoses and to permit raising
the dump body. Support long hoses with wire ties
or clamps.
C. Protect hoses from wear caused by sliding and/
or vibration.
D. For proper rotation of auger and spinner motors,
hoses may be reversed.
Note: Use of a pipe joint sealant compatible with
hydraulic oil is recommended for all screw fittings.
E. Use swivel type hose ends to connect hoses to
flow valve. Damage to valve body may occur if the
fittings in flow valve are over tightened
F. To achieve an additional positive shutoff of the
auger motor, the inlet flow must pass through
the bulkhead fitting (preinstalled on the bottom
tray), through latch bracket, through the quick
disconnect fitting assembly (preinstalled on the
side plate) then to the motor.
G. Buyers Products recommends a minimum flow
rate of 9 GPM @ 1000 rpm to operate our spreaders.
5
8
Hydraulic Flow Diagram
Tank
3/4" (1)
Wire Hose
1
T
3
Pump
3/4" (2) Wir e Hose
A
P
S
Valve
1-1/4" S piral
SuctionHose
3/4" (2) Wir e Hose
1/2" (1) Wire Hose
1/2" Quick Disconnects
Recommended Parts (not included)
ITEM PART NO. QTY DESCRIPTION
1
HV715
2
HVC1
3
SM R15
1 Dual Flow Regulator Valve
1 Dual Flow Regulator Console
1 15 Gallon Reservoir
6
7
4
3/4" Quick
Disconnects
1/2" (1) Wire Hose
Side Plate Mounted
1/2" Quick Disconnects
1/2" (1) Wire Hose
1/2" (1) Wire Hose
Auger Motor
CW Rotation
Spinner Motor
CCW Rotation
4
TM
Operating Instructions
Auger Quick Disconnect Installation
Attach Inlet
Flow Here
Flow to
Motor
Hose must pass
through bracket
CAUTION
A. Be sure everyone is standing clear.
B. Be alert for anything that may require shutting
down the system.
C. Before working in or around spreader equipment, be sure all hydraulic controls are moved to
off position.
1. Pre-start up.
A. Use high grade non foaming hydraulic oil to fill
reservoir about 3/4 full.
B. Position valve on/off lever to off.
C. Move auger and spinner knobs on the valve to
the open position.
D. Engage PTO and circulate hydraulic oil for several minutes to warm up.
E. Move valve on/off lever to on.
F. Inspect hydraulic system for leaks.
G. Check auger and spinner to see if they are work-
ing properly.
H. Refill reservoir to 3/4 full.
I. Hydraulic system should now be ready for use.
2. Initial use of spreader
A. Shut off spinner and auger knobs and position
the on/off lever to on. Engage the PTO and allow
the hydraulic system to warm up.
B. Open the cover plate and secure vertically with
locking brackets.
C. Open dump body tailgate as wide as possible
from bottom without bearing against cover plate.
Set stop chains.
D. Position spinner assembly to the far left (drivers
side), tighten clamp. Determine placement of material at various spinner and auger speeds by spreading a small amount of material (Far left position
used to spread (3) three or (4) four lane highway
from right lane).
E. Position spinner assembly to the far right (passenger side), tighten clamp. Determine placement
of material at various spinner and auger speeds
by spreading a small amount of material (Far right
position used to spread (4) four lane highway from
left lane).
F. Changing auger and spinner speeds on the valve
and placing spinner at various positions from left to
right will produce various spread patterns.
5
TM
3. Using the Auger Lock-out System
A. Shut off spinner and auger then position the
main hydraulics on/off lever to off. Turn off truck.
B. Verify hydraulic system is shut off then disconnect the quick disconnect fitting on the side plate
of the spreader.
C. The lower tray may now be opened for servicing.
D. After servicing, close and lock the tray in op-
erating position then reroute the hydraulic hose
through the latch bracket and reconnect the quick
disconnect coupler.
E. Verify that all hydraulic components are still
in operational condition, turn the main hydraulics back on and test the function of the unit. If
any issues are noticed turn off spreader and main
hydraulics then inspect and/or service the entire
spreader and/or hydraulic system.
DANGER
Before working in or around the auger area, all power
to the spreader must be turned off. Disengage the PTO,
shut off the engine and follow the lock out instructions.
After servicing is complete, reverse the process to
restore the spreader function. NEVER PUT ANY PART OF
YOUR BODY INSIDE THE AUGER AREA OF SPREADER.
4. Miscellaneous
A. Valve setting changes may be made with truck
in motion.
B. By moving on/off lever to the off position, spinner and auger may be stopped at the same time
without changing their valve settings.
C. Close cover plate flat over spreader trough and
lock in place for normal use of dump truck. Tailgate
may be opened from top or bottom.
D. When truck is used for extensive hauling the
spinner assembly should be removed.
E. If auger clogs, shut off spinner, open auger knob
valve and increase the engine speed. With the
engine at a higher speed, move the valve lever
from the on to the off positions rapidly; repeat as
needed. This action may unclog the auger. If this
action fails to free the auger, manual unclogging
will be required.
CAUTION
Position the valve on/off control lever in the off position when the spreader is not in use or is removed. In
the event the valve on/off control lever is left in the on
position, a heat problem may occur as the pump continues to pump oil to the hydraulic valve. This could cause
a hose to burst spraying hot oil.
HYDRAULICS SHOWN CONNECTED
(AUGER POWER ON) TRAY AND LID
MUST REMAIN IN OPERATIONAL
POSITIONS
HYDRAULICS SHOWN DISCONNECTED
(AUGER POWER OFF) MAIN POWER
MUST ALSO BE SWITCHED OFF
BEFORE TRAY AND LID MAY BE
OPENED FOR SERVICE
Recommended Maintenance
A. Warm up hydraulic system before using.
B. Keep the reservoir 3/4 full with high grade non-
foaming hydraulic oil.
C. Use precautions to keep contaminants from getting in reservoir when filling.
D. Quick connects are a prime source of contamination.
1. Clean quick connects before connecting or
disconnecting them.
2. Protect quick connects from contaminates.
E. Lubricate all bearings with suitable type grease
on a regular basis. More frequent lubrication is
recommended during periods of heavy use.
F. Lubricate the spinner hinge rod periodically.
G. Maintain the proper lubrication level in all gear-
boxes with SAE 90 gear lubricant.
H. When not in use, keep the spreader tray empty
to prevent freezing of material around auger in
extremely cold weather.
I. To extend the life of your spreader:
1. Hose down and clean after each use.
2. Repaint and/or oil after each season.
6
TM
6
Spreader Assembly Parts List
7
8
4
11b
10b
9b
12
10
9
20
21
22
23
1
1b
11
FRAME SHOWN FOR REFERENCE ONLY
ACTUAL FRAME MAY BE DIFFERENT
25
26
4
6
24
6
4
3
5
22
USED ON
92421SSA & 92426SSA
2
13
31
39
19
6
7
8
LEFT SIDE DISCHARGE MODELS
4
13
14
15
USED ON DIRECT DRIVE MODELS ONLY
16
17
18
19
24
LEFT SIDE DISCHARGE MODELS
31
32
33
GEARBOX PARTS (92430SSA ONLY)
34
28
29
30
31
37
38
30
23
4
36
35
33
32
Bill of Materials
ITEM QT Y.
1 1 Bottom Tray - Standard Discharge
1b 1 Bottom Tray - Driver Side Discharge
2 1 Top Cover
3 1 Bracket, Cover Mount
4 9/10 Screw, Hex Head Cap, 3/8-16 X 1
5 3 Washer, Flat, 3/8in
6 10 Nut, Nylon Locking, 3/8-16 X 7/16
7 2 Bracket, Cover Latch
8 2 Latch Handle
9 1 Auger - Standard Discharge
9b 1 Auger - Driver Side Discharge
10 1 Screen - Standard Discharge
10b 1 Screen - Driver Side Discharge
11 1 Plate, Anti-Spill - Standard Discharge
11b 1 Plate, Anti-Spill - Driver Side Discharge
12 4 Hairpin Cotter
13 1 Sleeve, Auger
14 1 Motor Adapter
15 1 Screw, Hex Head Cap, 1/2-13 X 3
16 1 Nut, Locking, 1/2-13
17 1 Elbow, 90 Deg Male NPT to Male NPT
18 1 Coupler, Hydraulic Quick, 1/2in NPT
DESCRIPTION CARBON STAINLESS
(Direct Drive/Gearbox)
- Male Half of B40004
- Female Half of B40004
3008429 3008443
- 3024304
3013931 3025122
3008430 3008447
FCS038016100 FCS038016100SS
FWF038100007 FWF038100007SS
FNE038016044 FNE038016044SS
3006965 3006968
9240063 3000268
924F0082 924F0081
- 3017487
3024306 3024306
-
3026623
-
3023297
3022531
3023298
1420 016 1420016
9240083 9240083
924F0084 924F0084
FCS050013300
3001250
92401213 3001253
H3529X8 H3529X8
B40004 B40004
B400041 B400041
B400042 B400042
ITEM QT Y.
DESCRIPTION CARBON STAINLESS
19 1 Fitting,Bulkhead,1/2in MNPT X 1/2in
MJIC W/ Lock Nut
20 1 Bearing
21 1 Felt Gasket
22 4/5 Nut, Serrated Flange, 3/8-16
(Direct Drive/Gearbox)
23 2 Screw, Hex Head Cap, 3/8in-16 X 1-1/4
24 2/1 Cam Handle - CW
24b 0/1 Cam Handle - CCW
25 2 Nut, Nylon Locking, 5/8-11
26 2 Screw, Hex Head Cap, 3/8-16 X 3
27 3 Bracket, Screen Mount
28 1 Plate, Motor Mount
29 1 Hydraulic Motor - Direct Drive Only
30 3/2 Nut, Serrated Flange, 1/2-13
(Direct Drive/Gearbox)
31 3/2 Bolt, Carriage, 1/2-13 X 1
(Direct Drive/Gearbox)
32 4 Screw, Hex Head Cap, 3/8-16 X 3/4
33 4 Washer, Split Lock, 3/8in
34 1 Plate, Gearbox Mount
35 1 Gearbox
36 1
Hydraulic Motor - Gearbox Model Only
37 4 Screw, Hex Head Cap, 1/2in-13 X 1
38 4 Washer, Split Lock, 1/2in
39 1
Bracket, Fitting Mount
7
H2706LNX8X8 H2706LNX8X8
9240086 9240086
9240087 9240087
92401211 3001255
FCS038016125 FCS038016125SS
3014762 3019032
3014763 3019033
FNE063011069
FCS038016300
3001247
3007068
3026624 3022533
3000458 3001367
CM074P CM074P
92401212 3001523
FCB050013100
9240125
3001522
FCS038016075SS
FWL038069009 FWL038069009SS
3000457
9240089
CM034P
3001366
9240089
CM034P
FCS050013100 FCS050013100SS
FWL050088013 FWL050088013SS
3026625 3023290
TM
Hardware Box Contents
9049 Tyler Blvd. • Mentor, Ohio 44060
Phone (440) 974-8888 • Fax (440) 974-0165
Toll-Free Fax 800-841-8003 • saltdogg.com
12
11
1
Bill of Materials
ITEM Q TY. DESCRIPTION CARBON STAINLESS
1 1 Spinner Frame Assy.
2 1 Spinner Shield
3 1 Spinner Disk Assy.
4 2 Linkage Rods, Welded
5 1 Hinge Rod
6 1 Spinner Lug
30 2018 4 3 018 416
92 4F0 015 3006659
30 0 14 7 2A 3 0 0147 2 A
92 4F 0 012 924 F 00 12
92 4F 0 018 3006646
92 4F 0 013 3006645
7
2
4
5
6
8
10
9
3
ITEM QTY DESCRIP TION CARBON STAINLESS
7 1 Bar
8 2 Bar, Hanger Brace
9 2 Detatch Mounting Plate
10 2 Hinge Pin
11 1 Hardware Bag
12 1 Height Adjustment Bracket
92 4 F 0014 924 F 0 014
924 F0101 3 0 11137
92 4F 010 2 3009526
92 4F 0103 30 111 3 9
3015630 3 017 834
30 2018 5 3 017 175
Auger Replacement Kit
Standard Discharge (924F0081AK)
Left Side Discharge (3026661)
1
6
3
7
2
8
5
4
Bill of Materials
ITEM PART N O. QTY DESCRIPTION
924 F0 081
1
30 174 87
2
9240083
3
924F0084
4
9240086
5
9240087
6
7
8
9
—
—
—
—
8
1 Auger Standard Discharge
1 Auger Lef t Side Discharge
1 Adaptor Sleeve
1 Adaptor Shaft
1 Bearing
1 Felt Gasket
1 Capscrew
1 Locknut, Reversible Hex
2 Capscrew
2 Nut, Serratted Flange
9
3026614 Rev. A
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