Monroe MS969 Quick start guide

Monroe Snow & Ice Control
1051 W. 7th Street • Monroe, WI 53566
USA: 877-834-9049 • Fax: [phone]
www.monroetruck.com
05090088-16
3/25/2014
Parts & Service Manual
for
Tailgate Spreader
MS969

A1

1
Table of Contents
General Information 2
How to rder Parts 2
Return Policy 2
Safety Instructions 3
Maintenance Instructions 7
Installation Instructions 15
perating Instructions 20
Hydraulic Schematics 21
Replacement Parts 23
Warranty 77

2
General Information
• Use only Monroe Truck Equipment .E.M. replacement parts. Failure to do so will
void the warranty.
• Location descriptions are noted in direction of travel (i.e. front, rear, left and right).
• Delivery of replacement parts is subject to our sales delivery terms.
• Replacement parts listed in this manual reflect the most common items for this
product. If you do not find the part you require, please call your distributor.
• Monroe Truck Equipment reserves the right to make revisions or alterations to the
parts manual at any time.
How to Order Parts
To order or inquire about replacement parts, please contact the distributor or store that
the product was purchased through. To speed the information flow, please have the
following information available:
• Model Number
• Serial Number
• Part Number and/or Description of the Part
• Quantity Needed
For further information about Monroe Truck Equipment replacement parts, please call
877-834-9049.
Return Policy
Merchandise returned to Monroe Truck Equipment must have a Warranty Service Re-
quest (WSR) form filled out completely and signed by authorized personnel.
To get your WSR form for replacement parts, call Warranty at 877-834-9049.
All returned items are subject to a 15% restocking fee and must be sent freight
pre-paid.

3
Safety Instructions Rev 12/18/12
Before working under the ehicle or around the spreader, shut off the truck en-
gine and remo e the key from the ignition. Pre ent accidental startup and oper-
ation of the spreader to a oid personal injury!
Keep body parts away from the auger when it is turning. Ne er try to clear
jammed material with the auger turning. Ne er try to manually feed material
into the turning auger. Hands, feet, hair, and clothing can become entangled in
mo ing parts causing death or se ere injury.
• Locate and read all safety decals on the unit before operating the spreader. Familiarize your
self with all potential hazards in operating this equipment.
• Read all installation, operation, and maintenance instructions before operating the spreader.
• Keep all provided shields, covers, and guards in place during operation of the unit.
• Stay away from moving chains, gears, and augers. Hands, feet, hair, and clothing can become
entangled in moving parts, causing death or severe injury.
• Stay away from the spinner when it is rotating. The spinner can throw granular material with
great force and can cause severe eye injury or blindness.
• Never enter the dump body unless the vehicle is turned off and the ignition key is removed.
Follow lock-out/tag procedures for working on hazardous equipment.
• If the auger jams or the granular material is frozen in the spreader, shut down and lock-out/tag
the engine and hydraulic system, then clean out the trough to free up the auger.
• Watch for hydraulic fluid leaks at fittings and hoses. High-pressure fluid leaks can penetrate
skin and cause severe injury.
• Do not climb on the spreader at any time.
• If the spreader needs repair or the controls are not functioning properly, repair the unit
immediately. Do not continue to operate a malfunctioning unit—further and more serious
damage may occur.

4
Safety Decal Location
1
2
3
4
5
5
1. Keep all guards/shields in place.
2. Make certain everyone is clear of machine before
starting engine or operation.
3. Keep hands, feet and clothing away from power driven
parts.
4. Disengage PTO, shut off hydraulic valve and set parking
brake before leaving operator's position.
Make sure all movement has stopped before servicing or
unclogging machine.
5. Make sure machine is solidly supported when it is being
mounted, dismounted or stored.
6. Use flashing lights when operating machine.
IF DEFACED - ORDER PART NO. 05051404
Turning augers can crush and
dismember. Turn engine off
before servicing.
IF DEFACED - ORDER PART NO. 05051401
Turning spinners throw material.
Stay clear & wear eye protection
while spinner is turning.
Failure to heed will result
in serious injury.
IF DEFACED - ORDER PART NO. 05051402
Keep all guards/shields in place.
Moving parts can crush
and dismember.
IF DEFACED - ORDER PART NO. 05052310
Moving parts can
crush and dismember.
Do not operate with
shield removed.
Keep hands clear.
12
34
5
Should you ever need replace ent decals or parts/ ainte-
nance anuals, si ply contact MTE and we will supply you
with the FREE OF CHARGE. See bill of aterial for safety
decal replace ent part nu bers.
Used only on the Chain Drive Units Used only on the Chain Drive Units

5
DANGER (Red) indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING (Orange) indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTI N (Yellow) indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury.
CAUTI N (Yellow) used without the safety risk alert symbol indi-
cates a potentially hazardous situation which, if not avoided,
may result in property damage.
Safety Decal Signal Words
Welding Guidelines
• Structural welds may be defined by a Weld Procedure Specification (WPS) document.
Where applicable, this document will be included in the installation instructions for
Snow & Ice products. Where a WPS is provided, welds are to be performed following
the specifications and instructions on the WPS.
• Where a WPS applies, the person performing the welding should be qualified
(tested) to the procedure on the WPS. This is to verify that the person can success
fully perform the required weld.
• If a WPS is not provided, follow the general guidelines given below.
• For stick (rod) welding (SMAW) use low-hydrogen rods such as AWS A5.1, E7018.
Welding rods must be stored in accordance with AWS D1.1, Section 5.3.2.1 to
prevent absorption of moisture and other contaminants.
• For wire (gas shield) welding (GMAW) use AWS A5.18, ER70S-6, F6 wire. Wire
diameter must be 0.035” or 0.045 as dictated by the size of the weld or as indicated
on the applicable WPS.
• All welds must have adequate penetration and fillet size to obtain maximum strength
of the weld. Cold lap welds and undercutting are not acceptable. Unacceptable
welds must be ground out and re-welded. Typically, 3/8” weld fillets are required,
unless a WPS states differently.
• Verify that the welding machine being used is working properly and that the
volt/amp gauges are accurate when making settings based on a WPS.
• Components to be welded must be clean and dry at the weld area, with paint, rust,
and oil removed.
• Unless otherwise directed on a WPS, all parts to be welded must be at least 50oF
before welding is performed.

6
Welding Guidelines (Continued)
• When welding cast parts such as pipe brace balls, the parts must be heated to 150o F
for several minutes to drive out any moisture.
• When welding to large parts that will act as a heat sink, pre-heating of the weld
area may be required to insure equal penetration on both parts. Refer to the appli
cable WPS or to AWS guidelines if available. Before heating parts, check for wiring,
hoses, and other components that could be damaged by the heat. Remove or move
these components before applying heat to the area.
• Disconnect all battery cables (both positive and ground) before welding to help pre
vent damage to electronic components on the chassis.
• Always be sure the welder has a good ground contact as close to the weld point as
possible. Remove dirt, paint, and grease from the area where the ground will be
connected. This will help prevent damage to electronic components on the chassis.
• Never “quench” hot welds or otherwise accelerate cooling. Allow all welds to cool in
still air.
• Welding on MTE products for any reason other than instructed installation procedures is
prohibited and may void the warranty on the product.
• Never cut, weld, or grind directly on a chassis frame. Do not drill additional holes
though a chassis frame unless directed to do so in the installation instructions.
• This information applies only to products and installation instructions where welding is
instructed and allowed. Use of welding where threaded fasteners are indicated in the
installation instructions may void the warranty on the product and/or the EM chassis
components.

In Season
Threaded Fasteners
• Re-torque all fasteners after the first 8 hours of use.
• Check for loose, damaged, and missing fasteners before each use.
• Inspect and re-torque all fasteners at the beginning of each snow season.
Grease Lubrication
• Lubricate grease fittings every 10 hours during normal use and more often during heavy use
(does not apply to sealed bearings).
• Do not over-grease sealed bearings. Grease should not be pushed out past the seals on these
bearings. Refer to the greasing chart for sealed bearings.
Hydraulic System
• Tighten all hydraulic fittings after the first 8 hours of use.
• Inspect hydraulic fittings for leaks every week and tighten as required. If a hydraulic fitting
continues to leak after being tightened, replace the fitting as soon as possible.
• Maintain the hydraulic oil level at the upper black line on the reservoir sight gauge or two inches
below top of tank if there is no sight gauge. Use a high-grade, non-foaming hydraulic oil. Do
not mix different types and grades of hydraulic oil.
• Keep dirt and other contaminants out of the reservoir. Pour oil through filter or screen when
adding oil. Never operate the system with the filler cap not installed.
• Change the hydraulic oil annually or more often if it appears milky or discolored, or if it smells
burned. If the oil needs to be changed frequently, investigate for a source of contamination or
system overheating.
• Change the oil filter after the first 50 hours of operation, and then every 6 months or when the
pressure differential gauge indicates the filter is plugging.
• When quick-disconnects are separated, cover and cap the ends to prevent the entry of
contaminants into the hydraulic system and possible impact damage to the ends.
• Inspect the hydraulic hoses for wear or damage every month, especially hoses attached to moving
components.
Spreader Auger & Drive
• If the spreader auger has a chain drive, lubricate the chain lightly with oil either weekly or monthly,
depending on frequency of use.
• The slack on a drive chain must be checked after the first 8 continuous hours of operation and
then weekly during the in-service period. If the chain is loose, loosen the motor mounting plate
and rotate it until chain slack is removed. Position the motor by hand to avoid over-tightening the
chain—do not pry on the motor with a bar or other tool.
7
Maintenance Instructions Rev. 12/18/12
Before working under the ehicle or around the spreader, shut off the truck en-
gine and remo e the key from the ignition. Pre ent accidental startup and oper-
ation of the spreader to a oid personal injury!
Keep body parts away from the auger when it is turning. Ne er try to clear
jammed material with the auger turning. Ne er try to manually feed material
into the turning auger. Hands, feet, hair, and clothing can become entangled in
mo ing parts causing death or se ere injury.

8
Maintenance Instructions
• If a drive gearbox has a vent, keep the vent open and unobstructed. A blocked vent can cause
seal damage.
• Check the oil level in the gearbox once a month during the in-service period.
• Change gearbox lubricant annually or more often if the oil turns milky, indicating water
contamination. Use SAE 80-90 gear oil or the oil specified by the gearbox manufacturer.
Routine Care
• Check the operation of the spreader before each use.
• Verify that the auger runs smoothly and the spreader controller can vary the drive speed through its
full range. A bent auger must be straightened or replaced.
• Verify that the spinner runs smoothly and the spreader controller can vary the drive speed through
its full range.
• Verify that the Blast function at the spreader controller is working properly (if applicable).
• If the controller uses ground speed to control the conveyor speed, verify that this function is
working properly.
• Unless the vehicle is stored inside a heated building, empty the body and spreader trough of all
granular material before parking the vehicle in freezing conditions. Wet or damp material will
freeze solid, making the spreader unusable until it is thawed out.
• At the end of each storm event, remove all material from the box, then pressure-wash the
underside of the chassis and the spreader, especially all horizontal surfaces. Removing salt and
other chemicals regularly will prolong the life of all components.
Maintenance Schedule
• Due to the harsh operating conditions of a spreader, regular inspection and maintenance is critical
to safe operation and durability of the spreader. The owner or end user must create and enforce
the use of an inspection and maintenance schedule.
Off Season
• Typically, the spreader is removed from the vehicle and stored for the summer season.
• Remove all granular material from the spreader and pressure-wash it thoroughly to remove all
dirt, salt, and other chemicals.
• When removing the spreader, support it with a forklift or overhead hoist. Do not attempt to hold
the spreader unit manually when removing it.
• When hydraulic quick-disconnects are separated, cover and cap the ends to prevent the entry of
contaminants into the hydraulic system and possible impact damage to the ends.
• Set the spreader on stable blocking to keep it off the ground.
• Keep all installation parts, including the spinner, with the spreader to avoid losing parts during
storage.
• Inspect the spreader closely for damage and make any required repairs immediately so that the
spreader is ready to be reinstalled and used at the start of the next winter season.
• If possible, store the spreader indoors or under cover to reduce rusting and UV damage to hoses.
• If the spreader body is painted mild steel, repair damaged paint to extend the life of the unit.

9
SWP-
Task:
Product:
Application:
Reference:
Standard Work
Procedure
00245
Clean out spreader trough
Under tailgate spreader
All
n/a
Revision: 03/24/14 1 SWP-00245
DANGER Crushing and dismemberment haz-
ard. Can cause death or serious inju-
ry.
Stay away from moving auger. Never
work on the spreader with the auger
turning.
Shut off vehicle & disable hydraulic
system before accessing the spread-
er auger.
Keep all covers and shields in place
when the auger is turning.
DANGER Crushing and dismemberment haz-
ard. Rotating auger can cause death
or serious injury.
Stay away from moving gears and
drive chains. Never work on the
spreader with the drive turning.
Shut off vehicle & disable hydraulic
system before accessing the drive
system.
Keep all covers and shields in place
when the drive is turning.
DANGER Crushing and dismemberment haz-
ard. Rotating auger can cause death
or serious injury.
Do not climb into the dump bed or
climb on the spreader when the auger
is turning. Do not try to push granu-
lar material into the auger from inside
the dump bed.
Shut off vehicle & disable hydraulic
system before cleaning out the dump
bed or spreader.

10
SWP-
Task:
Product:
Application:
Reference:
Standard Work
Procedure
00245
Clean out spreader trough
Under tailgate spreader
All
n/a
Revision: 03/24/14 2 SWP-00245
NOTE
Never leave a vehicle with granular
material in the spreader outside in
freezing weather. If the material has
moisture in it, the material in the
spreader (and in the body) may freeze
solid.
If a spreader vehicle cannot be stored
in a heated building, dump the materi-
al load and run the spreader until it is
empty before parking the vehicle.
WARNING Eye and facial injury hazard. Granular
material can cause blindness or seri-
ous eye injury.
Stay away from the spinner when it is
turning. Never work around a turning
spinner when there is granular materi-
al in the spreader.
Wear eye and face protection when
working on or around a spinner. As a
minimum, were safety glasses with
side shields.

11
SWP-
Task:
Product:
Application:
Reference:
Standard Work
Procedure
Look Action Task
Revision: 03/24/14 3 SWP-00245
00245
Clean out spreader trough
Under tailgate spreader
All
n/a
3. Disconnect the spreader hydraulic hoses.
This will insure that the auger and spin-
ner cannot be started while the spreader
is being worked on.
4. If the spreader uses an electric drive
motor, disconnect the power wiring for
the motor.
1. Stop the vehicle, shut off the hydraulic
system and the engine, then remove the
ignition keys so the engine cannot be
restarted.
2. If your shop has a formal lockout/tag
program for powered equipment, follow
all program instructions.
NOTE
Some brands and models of spread-
ers have mechanical “interlocks” that
require the hydraulic hoses or electri-
cal motor wiring to be disconnected
before the bottom trough cover can
be opened.
Refer to the instructions provided
with the spreader for information on
using the interlocks.

12
SWP-
Task:
Product:
Application:
Reference:
Standard Work
Procedure
Look Action Task
Revision: 03/24/14 4 SWP-00245
00245
Clean out spreader trough
Under tailgate spreader
All
n/a
11. If material is frozen solid in the spread-
er, open the top lid and work from the
top to loosen the material. A heated
pressure washer is the quickest method
of getting frozen material out of the
trough.
12. The vehicle can also be left overnight in
a heated building to allow the material
to thaw.
8. Lower the bottom trough cover carefully
to the fully open position.
9. Use a metal rod, a scraper, or a small
shovel to break loose any packed or
frozen material in the auger.
10. If the vehicle is inside a shop, a water
hose or pressure washer may be used to
loosen and remove compacted or frozen
material.
5. Lift the lock pin on one of the bottom
trough cover levers and move the lever
to the open position.
6. Lift the lock pin on the other bottom
trough cover lever.
7. Hold the handle in the middle of the
bottom trough cover and move the other
lever to the open position.

13
SWP-
Task:
Product:
Application:
Reference:
Standard Work
Procedure
Look Action Task
Revision: 03/24/14 5 SWP-00245
00245
Clean out spreader trough
Under tailgate spreader
All
n/a
20. Start the vehicle engine and the hydrau-
lic system.
21. Run the spreader to verify that the auger
and spinner are operating normally.
17. Clean the ends of the hydraulic quick
disconnects for the auger and spinner
and reconnect them.
18. If the spreader uses an electric motor,
reconnect the power wiring.
19. If the spreader uses an interlock device,
verify that the hydraulic or electric con-
nections are reestablished when the in-
terlock is engaged.
13. When the trough is cleaned out, inspect
all parts for damage related to the
jammed auger. Make necessary repairs
before placing the spreader back in ser-
vice.
14. Close the top lid (if it was opened).
15. Raise the bottom cover and move the
latch levers to the closed position.
16. Make sure that the lock pins drop down
to prevent the levers from opening acci-
dentally.

14
Product Description & Function
The MTE under tailgate spreader is a removable unit that attaches to the rear of a dump body. Mount-
ing plates attach permanently to the sides of the rear posts. The spreader body pins to the mounting
plates with heavy-duty slide-in pins for quick installation and removal. Angled support straps attach to
pins in the rear posts with lynch pins and are also easy to remove.
A spinner assembly mounts to the truck frame and the spreader and uses linkage to keep the spinner
level as the dump body is raised. The spinner spread pattern is easily adjusted by loosening two bolts.
The spinner assembly is retained by lynch pins and can be removed quickly.
The spreader is fed granular material through the body tailgate. The auger in the spreader trough car-
ries the material to an opening at one end or in the middle of the spreader and drops it on to the spin-
ner. MTE under tailgate spreaders are compatible with most granular materials, such as salt, sand,
cinders, and stone chips.
A hinged top cover plate allows the tailgate to swing past the spreader when not in use, and a load in
the dump bed can be dumped over the spreader. A hinged trough at the bottom of the spreader allows
easy clean-out of frozen or jammed granular material.
The hydraulic auger and spinner motors can be driven and controlled by a variety of hydraulic and
spreader control systems.
Installation Requirements
The MTE under tailgate spreader kit includes the spreader with hydraulically-driven auger, spinner as-
sembly with hydraulic motor, mounting brackets, support straps, and mounting hardware. The following
are required for installation and operation but are not a part of the standard MTE spreader kit.
• Vehicle hydraulic system that can deliver 15 gpm of oil at a maximum pressure of 1,500 psig.
• Hoses, fittings, quick-disconnects, control valves, etc. for connecting vehicle hydraulic system to
the auger and spinner.
• Spreader controller (manual or electric).
Installation Instructions Rev: 12/18/2012

15
Spreader Installation
1. Unpack the spreader and verify that all required parts have been received. Installation hardware
may be inside the spreader.
2. pen the dump body tailgate from the top (rotate on bottom hinges) and position it horizontal with
the chains.
3. Mark a line on the back of the dump body (apron) at the level of the underside of the tailgate.
Close the tailgate.
4. Mark another line 1” below the line made in step 3. This is the mounting elevation for the
spreader and will allow the tailgate to be opened from the top with the spreader installed.
DO OT I STALL SPREADER U LESS SOLIDLY SUPPORTED. USE APPROPRIATE MATERIAL
HA DLI G EQUIPME T TO LIFT I PLACE.
5. Use a forklift or other means to position the spreader at the back of the dump body. The spreader
must be as close to the body as possible to prevent granular material leakage past the spreader. If
the back of the body is not flat, a strip of 7 ga. steel can be welded or bolted to the spreader
trough to fill gaps between the spreader and dump body.
6. Position the top of the spreader at the line marked in step 4. Level the top of the spreader with the
floor of the dump body.
7. Verify that the position of the spreader will allow the tailgate to be opened from the top or bottom
with the spreader installed.
8. Pin the Quick-Disconnect (QD) mounting brackets to the brackets on the spreader with the supplied
bent pins.
9. Hold the mounting brackets against the rear body posts and mark the holes for the mounting
fasteners.
10. Swing the brackets away from the posts and drill the marked holes for ½” diameter bolts.
11. If the body is painted mild steel, touch up the paint where the holes were drilled to prevent rusting.
12. Bolt the QD brackets to the posts with the supplied ½-13 x 1” bolts, flat washers, and top-lock
nuts. Tighten all bolts.
13. Attach the hanger bars to the pins on the spreader brackets with hair pin clips.
14. Hold the hanger bars at approximately 45o and mark the position of the top holes on the body
posts.
15. Swing the hanger bars away and weld the supplied mounting pins to the posts at the marked
locations. If the body is painted mild steel, repair the paint where the pins were welded.
16. Attach the hanger bars to the top pins with hair pin clips.
17. Verify that the trough top cover can be swung open through its full range.
18. Verify that the trough clean-out cover (bottom) can be swung open through its full range.
Installation Instructions Rev: 1/10/2013

16
Pin #11 
Hair Zinc
Support
Hanger
Quick
Detach Pin
Bolt
Nut
Washer
Quick
Detach
Bracket Wldmt
Clevis Pin
Installation Instructions Rev: 1/10/2013
Spinner Assembly Installation (Self-Leveling)
1. Mount the spinner assembly under the spreader discharge opening. The opening may be at either
end of the spreader or in the middle. Spreaders with reversible augers may be supplied with two
spinner assemblies.
2. Fasten the spinner frame to the hanger assembly with the supplied bolts, washers, and top-lock
nuts. Leave the bolts loose at this time so the spinner can be positioned properly under the dis
charge opening.
3. Pin the spinner and hanger assembly to the mounting ears under the spreader. Install the supplied
lynch pins.
4. Adjust the position of the spinner on the hanger as required, then tighten the mounting fasteners.
Spinner Stabilizer Bar Installation (Parallelogram Linkage)
1. The optional stabilizer bar keeps the spinner level to the ground as the dump body is raised and
lowered.
2. Install the spinner assembly as directed in the previous section.
3. Verify that the dump body is all the way down.
4. Position the stabilizer bar on the truck frame so the rod hole is 18” directly below the body hinge
pin and as close to being in line with the spinner as possible. If necessary, a spacer block can be
installed between the frame and the stabilizer bar to move the bar into alignment with the spinner.
BEFORE HEATI G PARTS, CHECK FOR WIRI G, HOSES, A D OTHER COMPO E TS THAT
COULD BE DAMAGED BY THE HEAT. REMOVE OR MORE THESE COMPO E TS BEFORE
APPLYI G HEAT TO THE AREA.

17
Installation Instructions Rev: 1/10/2013
5. Tack weld the stabilizer bar in place.
6. Position the stabilizer bracket on the bottom front of the spinner frame so it is in line with the bar on
the frame. If necessary, an extension bracket can be fabricated to move the stabilizer bracket into
alignment with the frame bar.
7. Tack weld the stabilizer bracket in place.
8. Install one of the stabilizer rods in the bar and one rod in the bracket. Install the hair-pin clip in the
ends of the rods.
9. Hold the rods together (side-by-side) and level the spinner with the ground. Tack weld the rods
together.
10. Raise and lower the dump body to verify proper operation of the spinner and stabilizer linkage.
ALWAYS USE THE BODY PROP WHE WORKI G U DER A RAISED BODY.
11. Finish weld the stabilizer bar to the frame and the bracket to the spinner frame.
12. Apply a 2-3” long weld bead to each side of the pair of stabilizer rods.

18
Installation Instructions Rev: 1/10/2013
Tailgate (Material) Shields Installation
1. Tailgate shields may have been provided with the spreader. These shields fill the gap that is created
at each end of the tailgate when the tailgate is opened partially for spreading granular material.
2. Position the shields on the inside of the tailgate as shown. The shields must cover as much of the
open gap as possible but still allow the tailgate to swing freely to close.
3. Bolt or weld the shields to the tailgate.
Hydraulics & Controls Installation
AVOID HIGH-PRESSURE FLUIDS. ESCAPI G FLUID U DER PRESSURE CA
PE ETRATE THE SKI CAUSI G SERIOUS I JURY. AVOID THE HAZARD BY
RELIEVI G PRESSURE BEFORE DISCO ECTI G HYDRAULIC OR OTHER LI ES.
TIGHTE ALL CO ECTIO S BEFORE APPLYI G PRESSURE. PROTECT HA DS
A D BODY FROM HIGH PRESSURE FLUIDS.
1. The spreader requires hydraulic circuits for the auger and spinner. If a new hydraulic system is
being installed with the spreader, refer to separate instructions for installation of the hydraulic
system components.
2. Quick-disconnect fittings must be installed in the hydraulic hoses at the rear of the chassis to allow
the spreader to be removed quickly and easily.
3. To install quick disconnects:
- Fabricate a mounting plate for bulkhead fittings to match the fitting diameters on the auger and
spinner motors. A common return circuit can be used for the return hoses from the auger
and spinner motors.
- Mount the plate to the rear of the chassis where it is accessible but not in the way of other
components. Do not mount where the fittings could be broken off when the body is raised.
The mounting plate can be welded or bolted to the frame.
- Install bulkhead fittings that match the auger and spinner hose fittings and the quick
disconnects being used.
- Connect the pressure and return circuit hoses to the front of the bulkhead fittings.
- Install the quick disconnect fittings on the back of the bulkhead fittings. For each motor, install
one set 180˚ opposite of the other (male vs. female) to avoid accidentally connecting the hoses
backwards.
- Measure for hoses to run from the quick disconnects to the motors. When measuring for the
hydraulic hoses, remember that the spreader will move with the body as it is raised and
lowered. Allow enough slack in the hoses for the spreader to move without stretching or
kinking the hoses.
- Fabricate hoses with a quick disconnect fitting on one end and a fitting for the motor on the
other end.
- Install the hoses on the motors and connect the quick-disconnects. Cover the hoses with
protective wrap and tie with wire ties as required to protect from rubbing.