INSTALLATION & OWNER`S MANUAL - Sno

INSTALLATION &
OWNER’S MANUAL
29, 29HD, 29R, 29THD & 32 SERIES SNOW
PLOWS WITH EIS® PLOW LIGHT HARNESS
CONNECTIONS
FOR GRAVITY & CENTRAL HYDRAULICS
WITH SERIAL NUMBERS BEFORE:
29G100300, 32G100400, 32C100100
WITH SERIAL NUMBER AFTER: 29G200000, 29THDG100000
FOR DOWN PRESSURE® HYDRAULICS
WITH SERIAL NUMBERS BEFORE:
29D102300, 29HDD100600, 32D102800
WITH SERIAL NUMBERS AFTER:
29HDD200000, 29R100000, 29THDD100000, 32D200000
Sno-Way®, Down Pressure® and EIS® are registered trademarks of Sno-Way International, Inc.
ProControl™, MegaBlade™, V-Wing™, E-Z Switch™, Revolution™, MaxAdjust™, SpeedLock™, and QuickJack™
are trademarks of Sno-Way International, Inc.
©2014 Sno-Way® International
97101109N
TABLE OF CONTENTS
Page
1
INTRODUCTION ......................................................................................................... 2
SAFETY ...................................................................................................................... 3
INSTALLATION INSTRUCTIONS............................................................................... 4
Electrical Installation ........................................................................................ 4
Mechanical Installation..................................................................................... 5
Mounting Snow Plow To Vehicle ................................................................... 13
Installing The Cylinder Lock Clamp .............................................................. 15
Removing Snow Plow From Vehicle ............................................................. 16
MAINTENANCE ........................................................................................................ 18
Break In Period ............................................................................................... 18
Periodic Inspection......................................................................................... 18
Plow Storage ................................................................................................... 19
Polycarbonate Blade Care ............................................................................. 19
Polycarbonate Blade Cleaning Instructions ................................................ 19
Plowlight Bulb Replacement ......................................................................... 19
Fluid Requirements ........................................................................................ 20
Changing Oil and Cleaning Filter Screen ..................................................... 20
Cutting Edge - 29, 29HD, 29R & 32 ................................................................ 22
Cutting Edge - 29THD ..................................................................................... 22
Disk Shoe Adjustment.................................................................................... 23
Trip Spring Adjustment .................................................................................. 23
Blade Stop Replacement................................................................................ 23
Emergency Plow Raise .................................................................................. 23
PLOWING OPERATION ........................................................................................... 24
Operating Class .............................................................................................. 24
Before the Season Begins ............................................................................. 24
Transporting Vehicle With Plow Attached .................................................... 24
Plowing Like A Pro ......................................................................................... 25
Using The Down Pressure (DP) Hydraulic Systems.................................... 25
Clearing Driveways......................................................................................... 25
Clearing Parking Lots..................................................................................... 25
TROUBLESHOOTING .............................................................................................. 26
Troubleshooting Quick Reference - General................................................ 26
Troubleshooting Guide .................................................................................. 26
THEORY OF OPERATION - 29G, 29HD and 32 Series........................................... 33
Hydraulic Power Unit and Controls .............................................................. 33
Electro-Hydraulic Operation .......................................................................... 33
Raise Mode Of Operation ............................................................................... 33
Lower Mode Of Operation - Gravity Down and Float................................... 34
Angle Left or Right Mode of Operation......................................................... 34
Fuse ................................................................................................................. 34
THEORY OF OPERATION - 29R Series .................................................................. 35
Hydraulic Power Unit and Controls .............................................................. 35
Electro-Hydraulic Operation .......................................................................... 35
Raise Mode Of Operation ............................................................................... 35
Lower Mode Of Operation - Gravity Down and Float................................... 36
Angle Left or Right Mode of Operation......................................................... 37
Left or Right Wing Mode of Operation .......................................................... 37
Dual Wing Mode of Operation........................................................................ 38
Fuse ................................................................................................................. 38
29R Power Unit Components......................................................................... 38
HYDRAULIC SCHEMATIC - Gravity Down System ............................................... 39
HYDRAULIC SCHEMATIC - Down Pressure System ............................................ 40
HYDRAULIC SCHEMATIC - (Down Pressure System)
With S.N. After 29R100000 .............................................................................. 41
WIRING SCHEMATIC - Gravity Down System
With S.N. Before: 29G100300, 32C100100 ..................................................... 42
WIRING SCHEMATIC - Down Pressure System
With S.N. Before: 29D102300, 29HDD100600, 32D102800............................ 43
WIRING SCHEMATIC - Gravity Down System
With S.N. After 29G200000 .............................................................................. 44
WIRING SCHEMATIC - Down Pressure System
With S.N. After: 29HDD200000, 29THDD100000, 32D200000 ....................... 45
WIRING SCHEMATIC -Down Pressure System
With S.N. After 29R100000 .............................................................................. 46
MAIN WIRING HARNESS SCHEMATIC (Energy Interruption System)................ 47
TORQUE SPECIFICATIONS .................................................................................... 48
INTRODUCTION
This manual was written for the assembly, installation and
maintenance of your new Sno-Way plow. Most
importantly, this manual provides an operating plan for
safe use. Refer to the Table of Contents for an outline of
this manual.
Please keep this manual with your machine at all times as
reference material and so it can be passed on to the next
owner if the machine is sold.
We require that you read and understand the contents of
this manual COMPLETELY, especially the chapter on
SAFETY, before attempting any procedure contained in
this manual.
NAME PLATE DATA
POWER PACK MODEL NUMBER
POWER PACK SERIAL NUMBER
(Located on A-Frame)
CONTROLLER SERIAL NUMBERS:
TRANSMITTER S.N.
RECEIVER S.N.
BLADE MODEL NUMBER
BLADE SERIAL NUMBER
(Located on Blade Frame)
PUMP SERIAL NUMBER
(FILL IN)
DEALER
NAME
The Society of Automotive Engineers has adopted
this SAFETY ALERT SYMBOL to pinpoint characteristics that, if NOT carefully followed, can create a
safety hazard. When you see this symbol in this manual or on the machine itself, BE ALERT!, your personal safety and the safety of others, is involved.
ADDRESS
CITY
PHONE (
STATE
ZIP
)–
(FILL IN)
• Defined in the next column, are the SAFETY ALERT
messages and how they will appear in this manual.
ORIGINAL PURCHASER
NAME
WARNING
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH.
ADDRESS
CITY
PHONE (
STATE
ZIP
)–
(FILL IN)
CAUTION
Information, that if not carefully followed, can
cause injury or damage to equipment!
NOTE: Additional information concerning the equipment
or the procedure that may or may not be contained elsewhere in this manual.
BE AWARE! It is illegal to remove, deface or otherwise alter the safety decals mounted on this equipment.
Record the Power Pack Model Number, Power Pack
Serial Number, Controller Serial Numbers, Blade Model
Number, Blade Serial Number and the Pump Serial
Number in the space provided below as a handy record
for quick reference. The Power Pack Serial Number is
located on the A-Frame (driver’s side near the front), the
Blade Serial Number is located on one of the middle ribs
of the blade. This plate contains information that your
Dealer needs to answer questions or to order
replacement parts, if needed, for your unit.
We reserve the right to make changes or improve the
design or construction of any part(s) without incurring the
obligation to install such parts or make any changes on
any unit previously delivered.
Graphics and illustrations may be used which may show
equipment and/or options not included in every
installation without incurring the obligation to install such
parts or make changes on units previously delivered.
Sno-Way Service Parts Manuals are available on-line or
at your authorized Sno-Way dealer. Request part number
97100829 or 97101918 (Depending on your model) &
97101915 for the 29 Series Snow Plow. Factory contact
information is available at www.snoway.com.
2
SAFETY
BEFORE ATTEMPTING ANY PROCEDURE IN THIS
BOOK, READ AND UNDERSTAND ALL THE SAFETY
INFORMATION CONTAINED IN THIS SECTION. IN
ADDITION, ENSURE ALL INDIVIDUALS WORKING
WITH YOU ARE ALSO FAMILIAR WITH THESE
SAFETY PRECAUTIONS.
For your safety Warning and Information Decals have
been placed on this product to remind the operator
to take safety precautions. It is important that these
decals are in place and are legible before operation
begins. New decals can be obtained from Sno-Way or
your local dealer.
REMEMBER The careful operator is the best
operator. Most accidents are caused by human error.
Certain precautions must be observed to prevent the
possibility of injury to operator or bystanders and/or
damage to equipment.
NEVER operate plow when under the influence of
alcohol, drugs or other medications that could hamper
your judgement and reactions. An accident may result in
serious injury or death to other persons or yourself.
ALWAYS operate vehicle in a well-ventilated area. The
carbon monoxide in exhaust gas is highly toxic and can
cause serious injury or death.
NEVER allow hands, hair or clothing to get near any
moving parts such as fan blades, belts and pulleys.
Never wear neckties or loose clothing when working on
the vehicle.
NEVER wear wrist watches, rings or other jewelry when
working on the vehicle or individual equipment. These
things can catch on moving parts or cause an electrical
short circuit that could result in personal injury.
ALWAYS wear safety goggles when working on the
vehicle to protect your eyes from battery acid, gasoline,
and dust or dirt from flying off of moving engine parts.
ALWAYS be aware of and avoid contact with hot
surfaces such as engine, radiator, and hoses.
ALWAYS wear safety glasses with side shields when
striking metal against metal! In addition, it is
recommended that a softer (non-chipable) metal material
be used to cushion the blow. Failure to heed could result
in injury to the eye(s) or other parts of the body.
NEVER allow children or unauthorized person to
operate this unit.
NEVER exceed 45 m.p.h. when snow plow is attached
to vehicle. Braking distances may be increased and
handling characteristics may be impaired at speeds
above 45 m.p.h.
ALWAYS lock the vehicle when unattended to prevent
unauthorized operation of the plow.
ALWAYS check the job site for terrain hazards,
obstructions and people.
NEVER exceed 10 m.p.h. when plowing. Excessive
speed may cause serious injury and damage of
equipment and property if an unseen obstacle is
3
encountered while plowing.
ALWAYS position blade so it does not block path of
headlamps beam. Do not change blade positions while
traveling. An incorrect plow position blocking headlamp
beam may result in an accident.
ALWAYS check surrounding area for hazardous
obstacles before operating this unit.
ALWAYS inspect the unit periodically for defects. Parts
that are broken, missing or plainly worn must be replaced
immediately. The unit, or any part of it should not be
altered without prior written approval of the manufacturer.
ALWAYS insert the cylinder lock when plow is not in
use. If the cylinder lock is not installed, the plow blade
could inadvertently drop and cause injury.
ALWAYS shut off the vehicle engine, place the
transmission in Neutral or Park, turn the ignition switch to
the “OFF” position, firmly apply the parking brake of the
vehicle and turn "OFF" the plow controller before
attaching or detaching the blade from the vehicle or when
making adjustments to the blade.
ALWAYS inspect lift system bolts and pins whenever
attaching or detaching the plow, and before traveling.
Worn or damaged components could result in the plow
dropping to the pavement while driving, causing an
accident.
ALWAYS keep hands and feet clear of blade and AFrame when attaching or detaching plow.
NEVER place fingers in A-frame or mount lug holes to
check alignment when attaching snow plow. Sudden
motion of the plow could severely injure a finger.
NEVER stand between the vehicle and blade or directly
in front of blade when it is being raised, lowered or
angled. Clearance between vehicle and blade decreases
as blade is operated and injury or death can result from
blade striking a body or dropping on hands or feet.
NEVER work on the vehicle without having a fully
serviced fire extinguisher available. A 5 lb or larger CO2
or dry chemical unit specified for gasoline, chemical or
electrical fires, is recommended.
NEVER smoke while working on the vehicle. Gasoline
and battery acid vapors are extremely flammable and
explosive.
NEVER use your hands to search for hydraulic fluid
leaks; escaping fluid under pressure can be invisible and
can penetrate the skin and cause injury! If any fluid is
injected into the skin, see a doctor at once! Injected fluid
MUST be surgically removed by a doctor familiar with this
type of injury or gangrene may result.
REMEMBER it is the owner’s responsibility for
communicating information on the safe use and
proper maintenance of this machine.
INSTALLATION INSTRUCTIONS
General
POWER HARNESS PLUG
Install the subframe on the vehicle using the instructions
supplied with the subframe package. The pin height
should be 8" - 10" off the ground. (See Figure 1-1)
FUSE &
FUSE HOLDER
RED
BLACK
POWER
HARNESS
TRUCK
BATTERY
Figure 1-2
4. Attach the other end of one 2 ft. long power wire to
the positive terminal on the battery.
5. Attach the power harness red wire to the other
terminal of the fuse holder.
8" TO 10" HEIGHT
Figure 1-1
6. Place the fuse between the two studs and replace the
nuts and cover.
7. Route power harness to convenient point on front of
vehicle for connection to plow.
Electrical Installation
1. Remove the battery power harness and power
harness parts bag from the power pack carton.
NOTE: Take extra time needed to plan the routing of wiring harnesses. Make sure harnesses do not interfere
with, or contact, any moving parts and route wires away
from excessive heat areas. Read all the instructions
carefully to ensure a safe and professional installation.
WARNING
Disconnect the vehicle NEG. (-) battery cable
while performing steps 2 - 5 to avoid serious
bodily injury from electrical shock, fire, or
explosion. Do not re-connect battery cable until
indicated in step 8.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
8. Attach the power harness black wire to the NEG. (-)
terminal of the battery and re-connect the negative
battery terminal.
9. Spray all terminal connections with a battery terminal
protective coating.
10. Secure harness with plastic tie straps.
11. Install truck control harness if needed, using
instructions included with controls.
12. Remove the main light harness from the power pack
carton. Route the harness from the headlights to the front
of the truck and through the grille or bumper. The ends
with the green plugs go to the headlights and the ends
with the black plugs go to the front of the truck.
13. Open the adapter harness bag, remove the harness
and plug the proper adapters into the green plugs on the
main harness. Connect the adapters to the truck wiring
following the included instructions.
14. Secure the main harness and adapters. Make sure
that the harnesses are not in contact with moving or hot
engine parts.
15. Plug the male and female black plugs at the front of
the truck together. These must be connected to allow the
truck lights to operate.
2. Mount the fuse holder near the battery using (2) #10
x 1" self-tapping screws.
3. Take the cover off of the fuse holder and remove the
nuts on the studs. Place one end of the 2 ft. long power
wire on one stud. (See Figure 1-2)
4
3/8”x 2-1/2”
BOLT
SPRING
BRACKET
SWING FRAME
WARNING
Failure to connect the main light harness on the
truck when plow is not attached will cause truck
lights to not operate, which could cause an
accident.
FACE
PLATE
SPRING
BRACKET
3/8” NYLOCK
NUT
STOP
3/8” NYLOCK
NUT
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH.
FACE PLATE
16. Apply included dielectric grease to all connectors.
NOTE: An adapter is recommended for vehicles with a
side post battery. (See Figure 1-3) (Adapters can be purchased from your Sno-Way dealer, Part #96100773
3/8”x 2-1/2”
BOLT
STOP
Figure 1-4a (Old Swing Frame)
3/8”x 2-1/2”
BOLT
SPRING
BRACKET
SWING FRAME
SPRING
BRACKET
ADAPTER
2’ RED
BATTERY CABLE
FACE
PLATE
3/8” NYLOCK
NUT
STOP
3/8” NYLOCK
NUT
FACE PLATE
STOP
Figure 1-3
Mechanical Installation
IMPORTANT: Graphics and illustrations may be
used which may show equipment and/or options not
included in every installation.
Assemble Blade, Swing Frame and Trip Springs
(29, 29HD, 29R & 32 Series)
1. Open the power pack carton, remove the blade parts
bag (part number 96106088, 32 Series or 96107662, 29,
& 29HD Series) and the trip stop bag (part number
96107396, 32 Series or 96107395, 29 & 29HD Series).
Face plates are in the bag with the stop blocks.
Figure 1-4b (New Swing Frame Forwards and Backwards Compatible)
3. Lay blade face down on floor, using cardboard or
similar material to prevent paint damage.
4. Place swing frame on blade and insert 3/4" x 2" clevis
pin from blade parts bag. The ribs on either side of the
center rib should be between the swing frame lugs. (See
Figure 1-5)
CLEVIS PIN
3/4” x 2"
COTTER
PIN
COTTER
PIN
WASHER
2. Slide the metal face plates into the slot in the blade
stops from the side. Place the stops between the lugs on
the swing frame. Secure with 3/8" x 2-1/2" bolts and
locking nuts. (See Figure 1-4a or Figure 1-4b.) Bolts and
nuts are in the blade parts bag.
NOTE: The 29 Series blade uses green stops and the 32
Series blade uses black stops. Make sure the proper
stops are installed for the blade being used.
5
3/8”x 2-1/2”
BOLT
WASHER
CLEVIS PIN
3/4” x 2"
Figure 1-5
5. Insert washer on end of clevis pin and secure pin with
cotter pin.
NOTE: Make sure cotter pin is properly bent or pin may
work loose (See Figure 1-6)
INSTALL WITH
OPEN END OF LOOP
FACING VEHICLE
0.015" GAP
JAM
NUTS
CLEVIS PIN
COTTER PIN
29HD SERIES EYE BOLT
(UPPER INSIDE HOLE IN
EACH BRACKET)
Figure 1-6
6. Remove the springs from the power pack carton. Two
springs are needed for all 29 Series blades and four are
needed for a 32 Series blade.
7. Hook springs onto blade with open end of loop facing
up. (See Figure 1-7a, Figure 1-7b and Figure 1-7c
INSTALL WITH
OPEN END OF LOOP
FACING VEHICLE
Figure 1-7b (29 HD and 29R Series)
INSTALL WITH
OPEN END OF LOOP
FACING VEHICLE
0.015" GAP
JAM NUTS
0.015" GAP
32 SERIES
EYE BOLTS
(TWO
LOWER
HOLES IN
EACH
BRACKET)
JAM NUTS
29 SERIES
EYE BOLT
(UPPER
OUTSIDE
HOLE IN
EACH
BRACKET)
Figure 1-7c (32 Series)
Figure 1-7a (29 Series)
8a. 29 SERIES BLADES: Hook other end of spring onto
eyebolt. Insert one eyebolt on each side of the blade into
the single upper hole on the swing frame spring bracket.
Use a jam nut on either side of bracket to secure. (See
Figure 1-7a and Figure 1-7b
8b. 32 SERIES BLADE ONLY: Hook other end of spring
onto eyebolt. Insert two eyebolts on each side of the
blade into the two lower holes on the swing frame spring
bracket. Use a jam nut on either side of bracket to
secure. (See Figure 1-7c)
9. Tighten springs until a .015" feeler gauge can pass
between two or more coils (a 3x5 postcard is
approximately .015").
CAUTION
Do not over tighten trip springs. If more than
.015" (1/64") gap appears between coils
damage could occur during plowing.
Spring must be installed with open end of top
loop facing vehicle. Bottom loop position will
vary.
6
Assemble Blade Trip Springs (29THD Series)
1. Open the power pack carton and remove the blade
parts bag (part number 96114724).
2. Lay blade face down on floor, using cardboard or
similar material to prevent paint damage.
9. Apply a thin coating of grease to the main trip bolt
shank (See Figure 1-10)
ALIGN SADDLE WITH
MOUNTING HOLES
Assemble and Install the Trip Springs
1. Install three 3/4" nuts onto the long threaded end of
the spring trip rod (See Figure 1-8)
SPRING CUPS
3/4"
WASHER
3/4" NUTS
1" x 7" TRIP
ASSEMBLY BOLT
Figure 1-10
TRIP SPRING
TRIP ROD
SADDLE
Figure 1-8
2. Install the long threaded end of the trip rod into the
saddle completely.
3. Tighten the closest 3/4" nut closest to the saddle.
4. Thread the two remaing 3/4" nuts down toward the
saddle as far as they will go (this puts minimum pressure
on the spring for following steps).
10. With an assistant and pry board or other suitable tool,
apply pressure to the lower part of the saddle until it
aligns with the mounting holes in the blade.
11. Install the greased 1" x 7" trip assembly bolt through
the blade and saddle.
12. Rotate the trip bolt to ensure that grease has covered
the inside surfaces of the saddle.
13. Install a 1" locknut on the trip bolt. Tighten the nut to
remove all freeplay from the bolt, but still allow it to spin
in the mounting holes and saddle (See Figure 1-11)
5. Install the ¾” washer, spring cup, trip spring and
second spring cup on the free end of the trip rod.
1" LOCKNUT
3/4" NUT
6. Slide the trip rod assembly into a trip rod guide hole
in the blade (See Figure 1-9)
TRIP ROD
GUIDE HOLE
3/4"
LOCKNUT
14" SPACING
1" x 7" TRIP
ASSEMBLY BOLT
Figure 1-11
SHOCK
PLATE
SHOCK
PAD
TRIP ROD
ASSEMBLY
Figure 1-9
7. Install the shock pad and shock plate onto the free
end of the trip rod.
8. Loosely install a 3/4" locknut on the free end of the
trip rod.
7
14. Tighten the 3/4" nut against the washer and lower
spring cup until the distance between both spring cups is
14 inches.
15. Tighten the 3/4" jam nut against the adjustment nut to
secure the 14" spring cup spacing. (See Figure 1-12)
3/4" JAM NUT
3/4" LOCKNUT
Figure 1-12
16. Tighten the top 3/4" locknut on the trip rod against the
shock plate and shock pad until the lower trip assembly
bolt can be spun with minimal effort with a wrench.
NOTE: The shock plate keeps the lower blade and cutting edge from slamming into the stops on the main
blade. Minimal pretension on the shock bushing is
required to keep the blade from this impact. The ability to
spin the lower trip assembly bolt with minimal effort indicates proper preload on the trip spring assembly.
17. Repeat these steps to install the second trip spring on
the opposite side of the blade (See Figure 1-13)
INSTALL SECOND
TRIP SPRING
INSTALL WITH
OPEN END OF LOOP
FACING VEHICLE
0.015" GAP
JAM NUTS
32 SERIES
EYE BOLTS
(TWO
LOWER
HOLES IN
EACH
BRACKET)
Figure 1-13
8
Assemble Blade Wings, Wing Cylinders and
Return Springs (29R Series Only)
4. Install a straight hydraulic fitting into the cylinder port
and tighten securely.
1. Align right wing with blade. Coat pin with grease and
insert completely through blade and wing. Install a 5/16"13 x 1-3/4" hex head cap screw and one 5/16" flat
washer through the pin, a second 5/16" flat washer and
the blade. Secure with a 5/16" locknut. Tighten the nut,
but do not torque. (See Figure 1-14)
5. Install a 3/4" x 6-1/2" capscrew and 3/4" flat washer
through the closed loop of the retract spring. Install a
second 3/4" washer and spacer on the bolt. Insert the
bolt/spring assembly through the top wing pivot bracket
and begin to thread a 3/4" nut onto the bolt. Continue
threading the nut on the bolt until it bottoms on the bolt
threads. Install a 3/4" locknut on the bolt below the lower
wing pivot bracket and tighten securely (See Figure 1-16)
NUT
WASHERS
WING RETRACT
SPRING
CAP SCREW
CAPSCREW
WASHER
PASSENGER
WING
PIN
WASHER
SPACER
NUT
LOCKNUT
Figure 1-16
Figure 1-14
2. Position the base of one wing cylinder, with the
hydraulic port facing the rear, on the passenger side of
the blade. Install a 1/2" x 3-1/2" hex head cap screw and
secure with a 1/2" locknut. (See Figure 1-15)
1/2 x 3-1/2"
CAP SCREW
HYDRAULIC
FITTING
1/2 x 3"
CAP SCREW
PASSENGER SIDE
WING CYLINDER
LOCKNUTS
PASSENGER SIDE
WING PIVOT
BRACKET
Figure 1-15
3. Slightly extend the cylinder rod to align it with the
right wing pivot bracket. Install a 1/2" x 3" hex head cap
screw and secure with a 1/2" locknut.
9
6. Install a 5/8" x 4-1/2" eyebolt on the opened side of
the spring. Thread a 5/8" nut onto the eyebolt one half
way down the threads. Insert the eyebolt into the blade
rib and thread a second 5/8" nut onto the eyebolt. Tighten
the nut until a .015" feeler gauge can pass between two
or more coils of the retract spring. DO NOT exceed a
maximum clearance of .030" between the coils. (See
Figure 1-17)
WING RETRACT
SPRING
NUT
2. Set lower hitch pins into slot on truck subframe. Plug
in power and control harness and rotate light/lift bar into
position. Lock in place by rotating cam handles.
3. Set A-frame level using plow control. Once A-frame is
level, turn off controller and disconnect the power. See
"Mounting Snow Plow To Vehicle" on page 13 for more
information.
4. Remove 1" locknut and bolt. Slide swing frame into
A-frame. Replace 1" bolt and locknut and tighten. (See
Figure 1-18 and Figure 1-19.
3/4” X 3"
CLEVIS PINS
COTTER PIN
EYEBOLT
Figure 1-17
7. Tighten the nut on the spring side to secure the
adjustment.
8. Repeat the previous steps to install the driver side
wing, cylinder and wing retract spring.
9. Install left and right wing wearstrips using 1/2" x -1
3/4 carriage bolts and 1/2" locknuts.
NOTE: Hydraulic hoses will be connected to the wing cylinders after A-frame installation.
1"
BOLT
1"
LOCKNUT
COTTER
PIN
NOTE: SHOWN WITH LIGHT BAR / BELLCRANK ASSEMBLY
AND POWER UNIT REMOVED
Figure 1-18
1"LOCKNUT
Final Installation (All Series)
1" BOLT
1. Remove power unit from carton. Remove pump
cover. Attach lift link to light/lift bar, Install receiver using
instructions included with the controls package. Fill
reservoir on pump with supplied hydraulic fluid.
WARNING
Install caps on both wing cylinder hydraulic lines
before operating hydraulic system in step 3.
Failure to cap both lines may allow high
pressure hydraulic fluid to be unintentionally
discharged.
NOTE: SHOWN WITH PUMP AND PUMP COVER REMOVED
Figure 1-19
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH.
10
5. MODEL 29R Only: Connect the hydraulic hose from
port C6 on the power unit to the right (PS) wing cylinder.
Connect the hose from port C5 on the power unit to the
left (DS) wing cylinder. (See Figure 1-20)
3/8" x 1" SCREW
DS
3/8" x 1" SCREW
3/8"LOCKNUT
DS WING
CYLINDER
PORT C5
PORT C6
WASHER
PS
3/8"LOCKNUT
WASHER
PS WING
CYLINDER
3/8" x 1" SCREW
(TIGHTEN TO
45 LB-FT.)
Figure 1-21
10. Secure light bar to supports with (6) 3/8" x 1" screws
and lock nuts. Align light bar supports to vertical position
and tighten all light bar hardware. Tighten eight lower
screws to 45 lb-ft. (See Figure 1-21)
DS
HOSE
SHOWN
Figure 1-20
6. Remove cotter pins and 3/4" clevis pins from rod end
of cylinders. Reconnect the power and control. Extend
cylinders using plow control to align holes in cylinder rod
and swing frame. Insert 3/4" clevis pins and secure with
cotter pins. (See Figure 1-18) Bend cotter pin as shown
in Figure 1-6 to prevent it from working loose.
11. Position a plow light clamp and rubber isolator on the
bottom of each plow light, aligning the corner slots in the
clamp with the four holes in the isolator and light
housings (See Figure 1-22)
1/4" FLAT &
LOCK WASHERS
ON FOUR
SCREWS
1/4" x 1"
SCREWS
PLOW LIGHT
CLAMP
7. Cycle all plow functions and refill reservoir. Repeat
until all air is removed from hydraulic system. Replace
and tighten pump cover.
IMPORTANT: Review the "Break In Period" section
on page 18 of the Maintenance section to determine
if the 1" pivot bolt and lock nut installed in step 4 are
tightened appropriately.
8. Install side marker into pre-drilled holes on blade
frame using hardware included in package. Install
optional deflector, if equipped.
9. Remove left and right light support from power pack
carton. Attach each light bar support to lift/light bar with
(4) 3/8" x 1" screws, (8) washers and (4) lock nuts from
the light bar parts bag part number 96106089. Do not
tighten at this time. (See Figure 1-21)
LARGE
CLAMP
SLOT
1/4" x 1-1/4"
SCREWS
RUBBER
ISOLATOR
Figure 1-22
NOTE: The large clamp slot must be facing toward the
turn signal side of each light.
12. Loosely install two 1/4" x 1" screws, with lock and flat
washers, through the front holes (lens side) of the light
clamp and isolator into each plow light housing.
IMPORTANT: If longer screws are installed in the
front holes, the reflective lens of the light will be
broken.
11
13. Loosely install two 1/4" x 1-1/4" screws, with lock
and flat washers, through the rear holes (back side) of
the light clamp and isolator into the light module housing.
14. Slide the plow lights onto the respective ends of the
light bar bracket, aligning the hole in the bottom of the
bracket with the slot in the plow light clamp (See Figure
1-23)
LIGHT BAR
PLOW LIGHT
ASSEMBLY
18. Aim plow lights with plow in the fully raised position.
Lock the lamps in the adjusted position by tightening four
1/4" x 7/8" horizontal adjustment screws and one 1/4" x
7/8" vertical adjustment screw and 1/4" nut securely (See
Figure 1-23 and Figure 1-24.
NOTE: In order to conform to Federal Motor Vehicle
Safety Standards a SAE J602 Approved aiming device
must be used to aim plow lights.
19. Install an end cap in each end of the light bar (See
Figure 1-24)
LOWER LIGHT
BAR BRACKET
HOLE
PLOW LIGHT
CLAMP SLOT
Figure 1-23
15. Install a 1/4" x 7/8" screw with 1/4" washer through
each clamp and light bar and loosely secure with a 1/4"20 nut (See Figure 1-24)
DS PLOW
LIGHT SHOWN
1/4" x 7/8" SCREW
WITH 1/4" WASHER
1/4"-20
NUT
END
CAP
Figure 1-24
16. Apply dielectric grease to all light harness
connectors. Connect the plow light harness with the
black male connector to the driver side lamp and the
plow light harness with the black female connector to the
passenger side lamp.
17. Check operation of all lamp functions (Low beam
headlamp, high beam headlamp, marker lights and
directional signals).
12
2. Plug in power harness and remove controller from
truck cab. Plug controller into plow.
Mounting Snow Plow To Vehicle
1. Drive truck into plow. Align light/lift bar frame inside of
subframe lugs. Pins should fit inside slots cut into
subframe lugs. (See Figure 1-25)
LIGHT / LIFT
BAR FRAME
WARNING
The power cable in front of the truck is wired
directly to the battery. The power cable is
always energized, even if the truck is turned off.
Always replace the protective cap after
disconnecting the plow power cable. Allowing
an unprotected plug to contact metal parts of
the truck may cause electrical component
damage. Never use a metal object to clean the
plug contacts.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
SUBFRAME MOUNTED ON TRUCK
Figure 1-25
3. Rotate light/lift bar into position by turning on down
pressure and pressing the lower button. (See Figure 126)
NOTE: If pins are too high or low to fit into slots on subframe, adjust the height by plugging in the plow and hand
held controller. For Down Pressure Plows - To lower the
pins, turn on down pressure and press down. To raise the
pins, press up. For Gravity Plows - To lower the pins,
place plow in float and push up on light bar. To raise the
pins, press up.
WARNING
When using the hand held controller to raise or
lower the plow A-frame for mounting the plow
to the vehicle, be especially careful of the
movement of the light bar. This movement will
occur when raising or lowering the A-frame or
jack stand.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
WARNING
Pressing the blade angle functions will result in
the A-frame swinging if it is not secured to the
truck. Do not press the angle function during
plow installation.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
13
PIN WILL DROP
INTO SLOT
Figure 1-26
NOTE: If your plow is not equipped with down pressure
hydraulics you will have to manually rotate the light / lift
bar into position by placing plow in float mode and pushing on the light bar.
4. Put plow into float position by turning down pressure
off. Rotate pin handles down to lock pins in place. (See
Figure 1-27)
BELL CRANK
LIFT LINK
WARNING
Make sure that upper hitch pins are engaged
before moving truck. Hitch pins not fully
engaged could result in the plow separating
from the truck.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
NOTE: Upper hitch pins are fully engaged when pin handle is tight against pin bracket and you cannot see the
upper hitch pin between the pin bracket and pin handle.
If upper hitch pins are not fully engaged:
A. Raise plow an inch off the ground, then lower. Or,
B. Turn Down Pressure ON and then OFF.
Upper hitch pins will snap into place.
UPPER PIN
HANDLE
JACK STAND
LOWER PIN
HANDLE
Figure 1-28
CAUTION
PIN HANDLE
DOWN
UPPER
HITCH PIN
PIN HANDLE
DOWN
Figure 1-27
5. Unplug plow from control.
6. Disengage both jack stand pins by pulling on
handles. Raise the jack stand and engage the bottom pin
by pushing on the handle. Make sure pin is engaged in
hole by rotating jack stand back and forth. (See Figure 128)
Many new vehicles are equipped with onboard
circuit sensors designed to display a
dashboard LED when a headlight fails.
Generally, these sensors are activated or
tripped any time the circuit is being called upon
to function while the headlight circuit is
incomplete. This means that if a headlight fails
while the headlight is in operation, the sensor
will trip and the dashboard indicator will light
up. It also means that if a headlamp socket is
left empty—or a faulty lamp is installed—and
the circuit is then activated, the sensor will trip
and the dashboard indicator will light up.
These headlight circuit sensors are often
engineered with pre-designated failure limits.
This means that a sensor may be tripped a
limited number of times. After that limit is
reached the sensor may need to be reset by the
dealer or replaced by the manufacturer.
Sno-Way EIS plow light systems essentially
operate through a planned interruption of the
headlight circuit. When the truck-side
connectors are detached from one another, the
vehicle headlamps are disconnected from the
truck circuits which otherwise power them.
Until those truck-side connectors are attached
to the plow-side light connectors, the truck-side
circuits are open. This means that if the truck’s
onboard sensors are active while the plow
lights are being attached to the truck, the
truck’s sensors may trip.
14
CAUTION
To avoid unnecessarily tripping the truck’s
sensor, every time the plow lights are being
attached to the truck circuits or the truck
circuits are being reattached to the vehicle
lights, the truck’s lights should be turned off.
PLOW LIGHTS
CONNECTED TO TRUCK
LIGHT HARNESS
PLOW CONTROL HARNESS
Due to the aforementioned concerns, operators
of vehicles equipped with EIS lights should
make themselves aware of whatever circuit
sensors may be installed on their vehicles.
Operators should further become familiar with
their vehicle manufacturer’s description of how
their truck’s sensors are actuated or tripped.
Finally operators should know whether
predesignated failure limits may be engineered
into their truck’s sensors and what repair or
replacement procedures are recommended
should those limits be reached. Currently, the
vehicle models affected are as follows:
Failure to properly connect plow lights to
vehicle light harness will prevent plow lights
from functioning. Follow proper procedure to
connect light harnesses and test lights before
operating.
2006 and later-Dodge Dakota and Durango - All
packages.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
2006 and later-Dodge 1500, 2500 and 3500- All
packages.
2008 Ford F250-F550 - All packages.
7. Unplug light harness connectors on truck, and
disconnect plow light connectors, which had been
plugged together for corrosion protection during storage.
(See Figure 1-29)
Figure 1-30
WARNING
9. Plug control harness on plow into truck. Plug plow
control inside truck cab.
10. Raise, lower and angle plow to make sure no hoses
or wires pinch in the plow mechanism.
Installing The Cylinder Lock Clamp
TRUCK LIGHT HARNESS
CONNECTORS
WARNING
Always install the cylinder lock clamp when the
plow blade is raised and the operator is not
engaged in plowing operations. Equipment
failure or inadvertent operation of the plow
control while driving could allow the plow blade
to fall, resulting in injury.
PLOW LIGHT
CONNECTORS
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
1. Raise the plow to the full UP position.
Figure 1-29
8. Plug plow light connectors into mating connectors on
truck light harness. (See Figure 1-30)
2. Turn the ignition OFF and apply the parking brake.
3. Turn OFF the hand-held controller.
4. Remove the pin from the cylinder lock clamp.
15
5. Position the cylinder lock clamp around the exposed
(chrome) portion of the lift cylinder with the open side of
the cylinder lock up. Install the pin. (See Figure 1-31)
DISCONNECT
PLOW LIGHTS FROM
LIGHT HARNESS
BELL
CRANK
LIFT
LINK
PLOW CONTROL HARNESS
Figure 1-32
WIRE LOCK PIN
CYLINDER
ROD
3. To prevent corrosion on the contacts, plug the male
and female connectors on the plow together. (See Figure
1-33)
CYLINDER
LOCK
CLAMP
4. To make the truck lights operable, plug the male and
female connectors on the truck light harness together.
(See Figure 1-33)
A-FRAME BOTTOM
Figure 1-31
TRUCK LIGHT HARNESS
CONNECTORS
6. Lower the plow so that cylinder lock clamp is tight
against cylinder.
WARNING
PLOW LIGHT
CONNECTORS
Failure to lower plow onto clamp could block
headlights resulting in an accident.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
Figure 1-33
Removing Snow Plow From Vehicle
Choose a location for the plow storage, which will allow
the plow to be removed from the vehicle and not be
moved after removal. Also, choose a location that will not
allow the plow stand to sink into the ground. A dry,
protected area is recommended.
1. Lower plow to the ground, put vehicle in park, turn off
the engine and set the parking brake.
2. Disconnect the plow lights from the truck light
harness. (See Figure 1-32) Disconnect the plow control
harness and replace the protective cap. (See Figure 1-26
or 1-27).
WARNING
Failure to reconnect the main light harness on
the truck when removing plow will cause truck
lights to not operate, which could cause an
accident. Test lights before operating.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
16
.
CAUTION
When disconnecting the plow control harness,
turn only the locking nut at the end of the
connector. Do not turn the threaded boot.
Turning the threaded boot will break the wires
in the harness and cause the controller to stop
functioning. (See Figure 1-34)
7. Disengage lower jack stand pin by pulling on handle.
Lower the jack stand and engage the top pin by pushing
on the handle. Make sure pin is engaged in hole by
rotating jack stand back and forth (See Figure 1-37)
8. Remove controller from truck cab and plug into plow
control harness.
UPPER PIN
HANDLE
LIFT LINK
LOCKING NUT
(TURN)
BELL
CRANK
THREADED BOOT
(DO NOT TURN)
JACK
STAND
WITH S.N. BEFORE:
29G100300, 32G100400, 32C1001000,
29D102300, 29HDD100600, 32D102800
Figure 1-34
Figure 1-37
9. Rotate jack stand down and raise A-frame by
pressing the up button. (See Figure 1-38)
SECONDARY LOCK
LOCKING TAB
STORAGE
CAPS
WITH S.N. AFTER:
29G200000, 29HDD200000, 29R100000, 32D2000000
Figure 1-35
5. Turn Down Pressure ON and then OFF.
6. Rotate pin handles up (straight out) to unlock main
pins. (See Figure 1-36)
PIN HANDLE UP
(STRAIGHT OUT)
Figure 1-36
17
Figure 1-38
10. Disconnect power harness, replace protective caps
and back truck away from plow.
MAINTENANCE
2. Push down on end of blade as far as it will go on the
right or left side. Measure and record the distance from
the ground to the bottom edge of the wear strip.
General
WARNING
Before servicing plow, lower plow to the ground
or onto cylinder lock clamp and disconnect
main power harness.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
• Before operating, perform a through visual
inspection of the equipment. Look for fluid leaks,
cracked, bent or broken components, loose nuts,
bolts or attachments and proper fluid levels.
• A clean system is essential to long pump life and
proper performance.
• When adding oil to the reservoir, wipe the area
around the filler port clean before removing the
breather cap. Use clean oil and a clean funnel, (DO
NOT use a cloth or rag to strain the oil).
IMPORTANT: Sno-Way supplies type 5606 Sno-Way
Hydraulic Oil with the unit from the factory. If
additional oil is added it must be compatible with
Sno-Way oil. If another type of oil has been used in
the system the same type of oil must be used for
topping off system. Improper hydraulic fluid can
cause operating problems in cold weather.
• Do NOT use synthetic oil.
• Oil must contain an anti-foam additive.
• The operational environment for snow plows is an
extremely harsh and corrosive one.
• Ensure all electrical connections are clean and
tight.
• To prevent rust from forming, clean and repaint
exposed metal surfaces.
• NEVER operate the equipment with the protective
covers or guards removed.
3. Pull upwards on the same end of the plow as far as it
will go. Measure and record the distance from the ground
to the bottom edge of the wear strip.
4. Subtract the two measurements. If the number is
greater than 1-1/2" then the free play needs to be
adjusted.
To Remove Excessive Free Play
1. Tighten the pivot bolt nut (typically 1/6 to 1/3 turn, one
or two flats).
Periodic Inspection
After every 20 hours of operation perform the following
inspections:
1. Inspect plow assembly including sub frame for any
damage or excessive wear. Replace parts as necessary.
1. Inspect all fasteners (Plow & Truck Mount) to insure
they are properly tightened. Re-tighten loose fasteners to
the proper torque. Loose fasteners on the Bellcrank,
Pump Platform to A-Frame, Power Unit to the Pump
Platform, and Truck Mount must have the nylock nuts
replaced and tighten while using Sno-Way thread locker
96115529. (Refer to torque specification chart in this
manual).
2. Apply a small amount of light oil to: Quick-tatch pin
and handle assemblies, pivot pins between the blade and
swing frame, and pivot pins at lift, swing and wing (29R
Series only) cylinders. Also lubricate jackstand pins. (See
Figure 2-1)
BLADE
PIVOT
PINS
LIFT
LINKAGE QUICK-TATCH
PIN / HANDLE
PIVOTS
LIFT
Break In Period
The plow will go through a break in period during which
the A-frame and swing frame will settle in. After 15-20
hours of operation check for free play of the A-frame and
swing frame pivot.
1. Raise the plow and install the transport lock. (See
"Installing The Cylinder Lock Clamp" on page 15
CYLINDER
PIVOTS
SWING
CYLINDER
PIVOTS
QUICK-TATCH
Figure 2-1
3. If wear is noticed between the A-frame and the swing
frame apply a good quality anti-seize lubricant to this
area.
18
Plow Storage
When storing the plow for long periods of time use the
following guidelines.
1. If the plow will not be stored on pavement, place a
board under the jack stand to prevent it from sinking into
the ground.
2. To prevent corrosion, coat the exposed portion of the
cylinders with light grease.
3. Grease all pivot points.
4. Fill hydraulic reservoir to the fill line to minimize
trapped air.
5. Place dielectric grease on the terminals of all
electrical plugs, including those under pump cover. Make
sure protective caps are in place or plugs are plugged
together.
6. Check and replace any worn or damaged
component, such as cutting edges, deflectors, and
bushings.
Polycarbonate Blade Care
SCREW
HOUSING REAR COVER
Figure 2-2
2. To replace the High Beam bulb: Release the
bottom portion of the spring retainer from the socket base
and lift the bulb from the light housing. Disconnect the
red lead from the bulb. (See Figure 2-3)
Install a new H1 12VDC 55W Halogen bulb in the
housing (ensure it is properly indexed in the socket
base), install the spring retainer and connect the red lead
to the bulb.
• DO NOT use abrasive or highly alkaline cleaners on
polycarbonate blade.
• Never scrape polycarbonate blade with squeegees,
razor blades or other sharp instruments.
• Benzene, gasoline, acetone or carbon tetrachloride
should never be used on polycarbonate blade.
• DO NOT clean polycarbonate blade in hot sun or at
elevated temperatures.
Polycarbonate Blade Cleaning
Instructions
Wash with a mild soap or detergent and luke-warm water
using a clean cloth or soft sponge. Dry thoroughly with a
chamois or moist cellulose sponge to prevent water spots.
Plowlight Bulb Replacement
1. To replace any of the plowlight bulbs, remove the
phillips head screw and cover from the rear of the light
housing. (See Figure 2-2)
H1 12VDC 55W
HIGH BEAM
BULB
H7 12VDC 55W
LOW BEAM
BULB
1157NA
TURN/PARK
BULB
Figure 2-3
3. To replace the Low Beam bulb: Release the bottom
portion of the spring retainer from the socket base and lift
the bulb from the light housing. Disconnect both wires
from the bulb. (See Figure 2-3)
Install a new H7 12VDC 55W Halogen bulb in the
housing (ensure it is properly indexed in the socket
base), install the spring retainer and connect both wires
to the bulb.
4. To replace the Turn Signal/Park Light bulb: Turn
the socket base counter-clockwise to release and pull the
socket from the housing. Slightly depress and turn the
bulb to release it from the socket. (See Figure 2-3)
Install a new 1157NA bulb in the socket. Insert the socket
into the housing and turn to secure.
5. After replacing any bulb, position the cover on the
rear of the housing and secure with the original phillips
head screw.
19
Fluid Requirements
Changing Oil and Cleaning Filter Screen
IMPORTANT: Sno-Way supplies type 5606 Sno-Way
Hydraulic Oil with the unit from the factory. If
additional oil is added it must be compatible with
Sno-Way oil.
It is recommended that the fluid in the hydraulic system be
changed once a season.
NOTE: Type 5606 oil is rated to -60 deg. F, when Type
5606 is not available Exxon UNIVIS J13 or equivalent
may be used.
Do NOT use synthetic oil.
Oil must contain an anti-foam additive.
CAUTION
CAUTION
Using the proper oil increases the life
expectancy of the most critical part of your
unit; the Hydraulic power unit.
NOTE: Oil should be changed at the beginning of every
season. We recommend cleaning the filter screen at
every oil change; this will help ensure maximum life and
maximum performance from the pump assembly.
WARNING
• Using the proper oil increases the life
expectancy of the most critical part of your
plow; the hydraulic power unit.
• Allow the system to cool down before draining
oil or handling system components. Burns can
result from contact with hot oil.
• Failure to use the proper oil can cause
extensive damage to the power unit, seals and
hydraulic cylinders.
• Never disconnect any hydraulic line or fitting
with the plow in the raised position. Always
lower the plow and relieve pressure before
removing any lines or caps.
• Improper oil can cause operating problems and
poor performance in cold weather.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
1. Move plow to a clean, dry area with a solid surface.
Lower the plow to the ground, put vehicle in park, turn off
the engine and vehicle ignition, set the park brake, and
turn off the plow controller.
2. To prevent inadvertent short circuit or electrical
shock, disconnect the power harness and control
harness at the vehicle bumper.
3. Loosen the four screws holding on the pump cover
and remove the pump cover.
4. Remove the red power lead from the motor power
stud. Remove the black wire of the power harness and
the black ground wire to the control receiver from the 3/8"
screw in the center section of the power unit. Disconnect
the 12-pin connector of the power unit valve wire
harness. Remove the red/black wire and the red wire of
the power harness from the 5/16" terminal of the start
solenoid. Remove the red/white wire and the brown wire
from the #10 terminals of the start solenoid. Mark wires
and terminal locations to aid in re-connecting the wires
after the oil change. (See Figure 2-4)
20
9. Clean the inside and outside of the reservoir with a
suitable solvent.
START
SOLENOID
CENTER
SECTION
MOTOR
POWER
STUD
RETURN
TUBE
PICK-UP
TUBE
MOUNTING
PLATFORM
FILTER
SCREEN
Figure 2-4
5. Using a suction gun, drain the oil (most of it) from the
power unit reservoir.
6. Remove the two 5/16" cap screws that fasten the
center section of the power unit to the pump platform.
(See Figure 2-4)
7. Lift the power unit and rotate it toward the rear of the
pump platform. (See Figure 2-5)
NOTE: If the oil has not been previously removed from
the reservoir, the power unit can be rotated and tipped to
allow most of the oil to be drained out of the reservoir
filler hole, once the filler cap is removed.
Figure 2-6
10. Pull the filter screens from the oil pick up tube and
return tube and clean them with a suitable solvent. Blowdry the filter from the inside with low-pressure air. (See
Figure 2-6)
11. Carefully re-install the filter screens. Use care when
handling the screens to avoid damage.
12. Inspect the O-ring between the reservoir and the
power unit center section and replace it if damaged. Wipe
the surface of the O-ring with fresh oil and then push the
reservoir onto the center section of the power unit. Be
sure to reposition the reservoir so that the oil filler cap is
in the same location as before removal.
13. Tighten the band holding the reservoir to 80-120 lbin. torque.
POWER
UNIT
FILLER
CAP
FRONT
RESERVOIR
Figure 2-5
8. Loosen the band clamp, which holds the reservoir on
the center section. Pull and twist the reservoir until it
separates from the center section. Place a container
under the power unit to catch spilled oil. Note the position
of the reservoir oil pick-up tube and be sure the tube is in
the same position when the filter is removed and
installed. (See Figure 2-5 and Figure 2-6).
21
14. Rotate the power unit back into position. Insert the
two 5/16" cap screws. Use new lock nuts and torque to
22-25 lb-ft.
15. Reinstall the electrical wires removed in step 4.
16. Remove the lift cylinder hose(s) from the valve block.
Remove the swing cylinder hoses from the fitting in the
valve block. Mark hoses before removal to be certain
they are reinstalled in the correct location.
17. Place the hoses in a container to catch oil expelled
from cylinders. Cycle the lift cylinder by disconnecting
hitch pins and pushing and pulling on light bar. Cycle
swing cylinders by disconnecting from swing frame and
pushing and pulling on cylinder rod.
18. Reconnect swing cylinders and install hitch pins.
19. Reconnect hoses. Lift cylinder hoses are torqued to
20-25 lb-ft and swing cylinder hoses are torqued to 12-15
lb-ft.
Cutting Edge - 29THD
CAUTION
Do Not use Teflon tape or pipe dope on
hydraulic fittings. These can dislodge and jam
valves in the hydraulic system.
IMPORTANT: The lower edge of the bottom trip
plate will wear as the plow is used. When the wear is
within 1 inch of the mounting holes in the face of the
plate (See Figure 2-7), a standard 90 or 96 inch
cutting edge kit should be installed. This will prevent
eventual replacement of the entire trip edge
assembly.
20. Fill the hydraulic reservoir with type 5606 hydraulic
fluid until the fluid registers full on the sight line.
NOTE: Vehicle must be parked on level ground and plow
must be in lowered position in order to properly check the
reservoir level.
21. Refer to controls manual and cycle plow to remove
air from hydraulic system. Refill reservoir as needed.
22. Operate system and check for leaks. Repair and
replace components as necessary.
TRIP PLATE
Cutting Edge - 29, 29HD, 29R & 32
1"
WEAR
LIMIT
IMPORTANT: The cutting edge MUST be replaced
when it is worn to the bottom edge of the plow frame.
1. Raise the plow to full up position.
2. Install cylinder lock clamp.
3. Lower plow onto cylinder lock clamp.
4. The blade skin must be retained prior to removing
cutting edge. This can be done using a pair of 6" Cclamps located at the center of the curved portion of the
blade.
5. Remove mounting bolts holding old cutting edge to
blade. Discard old cutting edge and hardware.
Figure 2-7
1. Consult parts manual for proper replacement cutting
edge kit.
2. Raise the plow to full up position.
3. Install cylinder lock clamp.
4. Lower plow onto cylinder lock clamp.
5. Install cutting edge to trip plate using kit hardware.
6. Consult parts manual for proper replacement cutting
edge kit.
7. Install new cutting edge using kit hardware.
22
Disk Shoe Adjustment
Trip Spring Adjustment
1. Raise plow to full up position.
See "Mechanical Installation" on page 5.
2. Install cylinder lock clamp.
Blade Stop Replacement
3. Lower plow onto cylinder lock clamp.
4. Turn vehicle ignition switch and plow control OFF and
apply emergency brake.
5. Adjust shoe assemblies by removing shoe mounting
lynch pin and adding or subtracting washers on the top or
bottom of the shoe-mounting bracket. (See Figure 2-8 or
Figure 2-9).
PIN
Replace the blades stop at least every 2 years if used
commercially and 3 years if used personally by following
in reverse order, depending on your plow model, the steps
under "Assemble Blade, Swing Frame and Trip Springs
(29, 29HD, 29R & 32)" in the Mechanical Installation
section on page 5.
Or
"Assemble Blade Trip Springs (29THD)" in the Mechanical
Installation section on page 7.
Emergency Plow Raise
WASHERS
If your snowplow becomes inoperable for any reason,
follow the instructions below to raise the plow for transport
to your nearest Sno-Way Dealer.
1. Move truck to level hard ground.
Figure 2-8 (29/32 Series)
2. Place a jack under the swing frame as close to the Aframe as possible.
3. Raise jack until the A-frame is at approximately 30
degrees with the ground.
4. Make sure the plow and jack are stable. Place a jack
stand or wood blocking under the A-frame to prevent the
plow from suddenly dropping.
WASHERS
PIN
WARNING
Figure 2-9 (29 HD Series)
6. After the disk shoe position is properly adjusted place
washer on the shoe stem - above the disk shoe mounting
bracket and below the retaining lynch pin - to remove all
up and down movement of the disk shoe in the bracket.
Failure to do so will result in excessive wear of the holes
in mounting bracket or bending of the disk shoe stem.
IMPORTANT: Snap lynch pin ring over so that it
contacts the pin. If ring does not contact lynch pin,
rotate the pin and reverse the direction of the ring. If
the ring does not contact the pin it is not locked and
could fall out.
23
Failure to place a jack stand under the plow
could result in the plow rapidly falling.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
5. Install cylinder lock clamp. (See "Installing The
Cylinder Lock Clamp" on page 15.)
6. Remove Jack and Jack stand.
7. Drive to your nearest Sno-Way dealer for service.
PLOWING OPERATION
Operating Class
Transporting Vehicle With Plow Attached
The 29 Series Sno-Way plow is specifically designed for
heavy commercial applications on 3/4 and 1-ton trucks. In
some applications, the 29 series can be used on 1/2 ton
trucks.
1. Always install the cylinder lock clamp when the plow
is raised and the operator is not engaged in plowing
operations.
The 32 Series Sno-Way plow is specifically designed for
heavy commercial applications on trucks with a GVWR of
10,000 to 19,000 lbs. The 8-1/2’ and 9’ blades can also be
installed on many 3/4 ton trucks.
NOTE: If cylinder lock clamp is not installed during transport equipment failure or inadvertent operation of the
controls could allow the plow to fall.
Before the Season Begins
1. Inspect plow vehicles brakes, headlights, plowing
lights, windshield wipers, flashers, electrical system, and
cooling system for proper operation.
2. Inspect plow assembly including sub frame for any
damage or excessive wear. Replace parts as necessary
3. Inspect all fasteners to insure they are properly
tightened. Re-tighten loose fasteners to the proper torque
(Refer to torque specification chart in this manual).
4. Apply a small amount of light oil to: Quick-tatch pin
and handle assemblies, pivot pins between the blade and
swing frame, and pivot pins at lift and swing cylinders.
Also lubricate jackstand pins. (See Figure 2-1)
5. If wear is noticed between the A-frame and the swing
frame apply a good quality anti-seize lubricant to this
area.
CAUTION
Remove the plow when driving extended
distances at temperatures above 40 deg. F, the
plow blocks enough airflow to cause it to
overheat at temperatures above 40 deg. F.
2. Position the blade out of the beam path of the
headlights before driving.
WARNING
6. Clean and repaint any exposed metal parts with
corrosion resistant enamel.
The 32 Series blade will partially block the plow
lights when fully raised. Always lower plow
unto lift cylinder lock clamp when transporting
plow at night. Blocked plow lights could result
in an accident.
7. Check free play between the A-frame and swing
frame pivot. Adjust if necessary. (See "Break In Period"
on page 18.)
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
8. Check the oil level and repair any oil leaks. (See
"MAINTENANCE" on page 18.)
9. Inspect electrical connectors. Make sure the contacts
are clean, and apply a small amount of dielectric grease.
10. Install auxiliary and flashing lights (if not equipped).
Ensure auxiliary lights are aimed properly (with the plow
raised).
11. If ballast is required, position and secure ballast
behind rear wheels, for optimum performance.
3. Do not exceed 45 M.P.H. when driving with the
snowplow attached. Braking distance is increased and
handling impaired at speeds above 45 M.P.H.
4. Reduce speed when crossing railroad tracks or when
road conditions deteriorate.
5. Never change blade angle or height while driving.
6. Inspect plow and attaching hardware for damage
before transporting or plowing.
24
Plowing Like A Pro
plowing.
The system should be turned OFF when plowing surfaces
such as gravel, dirt, sand, etc., to prevent cutting into the
surface.
WARNING
Wear your seat belt! Contact with a hidden
obstruction can cause serious personal injury
from bodily contact within the vehicle cab or
whiplash from sudden stops.
FAILURE TO FOLLOW CAN RESULT IN INJURY
OR DEATH
NOTE: The air bag is factory set to deploy at a certain
acceleration level. The air bag will deploy with the plow
attached if an obstruction is hit with enough force to
reach this level. Always plow within the recommended
plowing speeds and know the area you are plowing to
avoid any obstructions.
NOTE: For better clean up of hard packed snow; raise
the disc shoes so that the cutting edge of the blade
comes into direct contact with pavement. Use the lowest
possible gear to place maximum power behind the cutting edge.
For instructions on using the plow controller to manipulate
the plow see the manual included with your plow control
package.
1. Become familiar with the area to be plowed and mark
potential hazards before the snow falls. Many immovable
objects cannot be seen when covered with snow.
Developing a plan early can save valuable time and
equipment damage. Allow sufficient room to pile snow,
out of the traffic area, with enough space for when the
next storm comes.
2. Plow with the storm. The “Pros” are out early
removing only several inches at a time. Allowing snow to
accumulate to unmanageable levels can cause removal
problems and wear and tear on equipment. The plow is
not a “Ram” or a “Bulldozer”. If used properly, it will give
many years of safe and reliable service.
3. Research municipal ordinances for restrictions on the
disposal of snow. Many municipalities do not allow snow
to be placed in or moved across roads or highways.
4. Research state department of transportation rules on
maximum width restrictions for snow plows. Certain
blades may require permits.
Using The Down Pressure (DP) Hydraulic
Systems
The DP system was designed for removing hard packed
snow from hard surfaces that has been driven on prior to
25
Activating the system applies down pressure to the down
pressure side of the lift cylinder. This down pressure will
force the cutting edge through hard packed snow. If down
pressure decreases as a result of a low spot, more down
pressure will be applied to the lift cylinder. When a high
spot is encountered the down pressure will be relieved to
allow the plow to follow the contour without lifting the front
of the truck.
Clearing Driveways
1. Head into driveway with the blade angled to move
snow away from buildings. Continue to widen the drive
path by rolling snow away from buildings on successive
passes.
2. If there is a garage at the end of the driveway, plow to
within several vehicle lengths of the garage and push the
snow off the driveway.
3. Raise the blade and drive through the snow up to the
garage. Drop the blade and “Back Drag” the snow 1-1/2
vehicle lengths back. Repeat as necessary.
4. Back the vehicle to garage door and plow forward
toward street, removing the remaining snow.
Clearing Parking Lots
CAUTION
Excessive stacking of snow causes undo
stress to the snowplow and vehicle. Repeated
loading of this nature may result in the failure
of plow components designed to protect the
snowplow and vehicle from major damage.
1. “Back Drag” areas in front of buildings and near walls
then work away from buildings towards the outer edges
of the lot.
2. Plow a single path down the center in the longest
direction.
3. Angle plow toward the outside and make successive
passes until the area is cleared and the snow is “Stacked”
around the outer edges. If snow is too deep to clear in the
above manner, clear main traffic lanes and stack snow at
intermediate positions.
TROUBLESHOOTING
2. You have the following available:
Introduction
Whenever service is necessary, your local dealer knows
your plow best and is interested in your complete
satisfaction. Return your snowplow to your local dealer for
maintenance service or any other assistance you may
require. If you are unable to do so, this trouble-shooting
guide should help you determine the problem. However,
before attempting the servicing of your plow, you should
possess good mechanical abilities and a total
understanding of the mechanism.
A.
B.
C.
D.
E.
Date snowplow was originally installed
Power Pack Serial Number
Controller Serial Number
Blade Serial Number
Pump Serial Number
This information should be recorded on page 2 of this
Owners Manual.
Troubleshooting Quick Reference
- General
CAUTION
1. Check vehicle electrical system for proper operation.
First read all warning instruction, the safety
messages, and directions before attempting
any adjustments or repairs to your unit!
PLEASE: Before calling parts and service personnel be
certain that:
1. You have read this guide carefully and are certain
that all of the suggestions pertaining to your problem
have been attempted.
2. Check all wiring to be sure that battery terminals are
clean and connections to battery, fuse, solenoid, and all
connectors on plow harness are clean and tight.
3. Check for external leakage at cylinders, hoses, and
power unit.
4. Check the voltage at the coils which operate solenoid
valves. For proper operation, ProControl system solenoid
coils require a minimum of 10.5 volts DC, while earlier
system coils require a minimum of 9.5 volts DC.
5. Check oil level in hydraulic system reservoir.
TROUBLESHOOTING GUIDE
PROBLEM
Motor will not run/
motor runs slow
Motor continues to
run and will not shut
off
PROBABLE CAUSE
CORRECTIVE ACTION
Fuse Blown
Check the circuit breaker / 250A fuse at your battery as well as the 10A fuse
on the pump harness. If either fuse has blown check over all electrical wiring
to determine why the fuse blew and replace fuse
Motor solenoid failed
Replace Motor solenoid.
Motor seized
Remove and replace motor, torque motor bolts between 50 to 60 inch
pounds.
Motor brushes worn
Replace motor.
Seal between motor and
pump damaged allowing
oil to enter motor housing
Remove the motor. Drain oil from the reservoir. Loosen the clamp and
remove the reservoir. Remove the 4 Allen screws and remove the pump
from the base block. Remove pump seal and replace. If the motor can be
salvaged, clean out motor and reassemble. If the motor can not be salvaged
replace motor.
Wires shorted out
Check all wires starting at solenoid working your way back to the vehicle.
Solenoid shorted
internally
Replace solenoid.
Receiver shorted
internally
Test the brown wire on the small post of the solenoid so see If the wire has a
continuous ground without function. Replace receiver.
26
TROUBLESHOOTING GUIDE
PROBLEM
Blade will not lift
(motor runs)
Blade lifts slowly
PROBABLE CAUSE
Hydraulic fluid level low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Improper main system
pressure relief valve
setting
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw to the proper main system pressure
for the series of plow. This can be found in the back of your owners manual
or online at SNOWAY.com.
Breather cap plugged
Remove and replace breather cap.
Coil on valve (F)
Check if there is magnetism on coil (F). If there is not swap coil with the coil
(A). If the problem moves to the angle function the coil is bad and needs to
be replaced.
Lower valve (F) stuck
Chck valve to make sure there is magnetism on the ""F"" coil. Remove the
"F"" valve and swap it with the "E" valve. If the blade lifts your valve was
stuck closed. Remove and replace the valve.
Raise cylinder binding
Check all linkages in the bell crank area. Replace and damaged
components.
Pick up tube filter plugged
Remove hydraulic fluid from the tank. Remove the tank and observe the pick
up tube screen. Clean or replace if necessary.
Worn/failed pump
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw. If the pressure will not raise and the
angle functions work remove hydraulic fluid and tank. Replace pump.
Pick up tube is not
submerged in fluid
Remove hydraulic fluid and tank. Turn pick up tube so it is angled down to
the bottom of the tank.
Down pressure valve (E)
stuck open
Check valve to make sure there in not magnetism on the "E" coil. Remove
the "E" valve and swap it with the "F" valve. If the blade lifts, your valve was
stuck open. Replace the valve.
Raise Valve (C) not
functioning
Check "C" coil for magnetism. Remove the "C" valve and inspect. Make sure
the lower part of the valve moves free and there is no debris causing the
valve to stick. If stuck and cant be freed up replace valve.
Hydraulic fluid level low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Breather cap plugged
Remove and replace breather cap.
Improper main system
pressure relief valve
setting
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw to the proper main system pressure
for the series of plow. This can be found in the back of your owners manual
or online at SNOWAY.com.
Pick up tube filter plugged
Remove hydraulic fluid from the tank. Remove the tank and observe the pick
up tube screen. Clean or replace if necessary.
Improper oil viscosity for
outside air temperature/
Ice in hydraulic tank
Change oil with Sno-Way hydraulic fluid.
(continued)
27
CORRECTIVE ACTION
TROUBLESHOOTING GUIDE
PROBLEM
Blade lifts slowly
(continuation)
PROBABLE CAUSE
CORRECTIVE ACTION
Weak system pump
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw. If the pressure will not raise and the
angle functions work remove hydraulic fluid and tank. Replace pump.
Low vehicle battery
voltage
Check voltage at both the battery and at the solenoid during function. The
battery may show 12V when the plow is not under load. If the voltage drops
below 9V when operating the plow, trouble shoot power system on your
vehicle.
Plow lifts but does
not hold - New plow
first action
Dirt in check valve
Cycle raise and lower system to flush debris.
Dirt in lower valve (B)
Cycle raise and lower system to unstick valve.
Plow lifts but does
not hold - second
action
Dirt or Debris in check
valve
Cycle raise and lower system to unstick valve if this does not work replace
valve.
Lower valve (B) stuck
Check valve to make sure there in not magnetism on the "B" coil. Remove
the "B" valve and swap it with the "F" valve. If the blade lifts your valve was
stuck open. Replace the valve.
Seals, O-ring(s) on lower
valve (B) damaged
Remove the lower valve (B) and inspect the O-rings to see if they are
damaged. If damaged replace the O-ring if there is one available. If not
replace the valve.
Ground available at lower
coil (B) without activation
Test the control receiver to see if there is a ground signal sent to the lower
coil (B) without activation. This can be done using a Sno-Way control test
(99101028). If you do not have a test box remove the two wires off of the (B)
coil and check to see if the blue with the white trace wire has a ground signal
coming from it. The control will need to be turned on. Tap the raise function
to make sure the control is not in the float or down pressure mode as this
would send ground to the wire. If the ground is present the receiver (black/
yellow box on snow plow) will need to be replaced. You should also check
the OHM reading on the (B) coil as well as the other coils on the valve block.
If the OHM reading on the (B) coil does not read the same as the other coils
replace the coil as well.
Piston seals leaking
(Internal) on raise cylinder
Raise the plow up in the air and support the blade with a hydraulic floor jack.
Remove the hose off of the rod side of the lift cylinder. Slowly lower the floor
jack and watch to see what direction the fluid flows from the lift cylinder. If the
fluid sucks into the lift cylinder the seals are good. If the fluid flows out of the
lift cylinder, fluid is leaking past the seals and the cylinder needs to be
replaced.
Plugged breather cap
Remove and replace breather cap.
Low or no current
available at lower coil (B)
Check wiring harness to make sure the connection had not been severed. If
a ground is present when operated the blue with the white trace wire the coil
may be weak. Swap coil with another coil on the valve block. If the problem
moves to a different function replace coil.
Lower valve (B) sticking
or stuck
Swap out the (B) valve with the ( E ) valve. If the plow lowers the valve is
sticking and should be cleaned or replaced.
Unit will not lower
(Gravity) (Down
pressure off)
(continued)
28
TROUBLESHOOTING GUIDE
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Unit will not lower
(Gravity) (Down
pressure off)
(continuation)
Lower coil (B) inoperative
Check to see if the blue with the white trace wire has a ground signal. If it
does and the coil is not magnetized, the coil needs to be replaced.
Raise cylinder damaged
allowing movement in one
direction only
Visually inspect bell crank assembly and lift cylinder. If it is damaged remove
and replace.
Unit will not apply
Down Pressure
(Down Pressure
switch ON)
Lower valve (B) sticking
or stuck
Remove the lower valve (B) and swap it out with the ( E ) valve. If down
pressure engages, the (B) valve is sticking and will need to be cleaned or
replaced.
Inoperative down
pressure, pressure switch
Remove the yellow and the brown wires from the pressure switch. Using a
continuity tester check for continuity across the two prongs of the pressure
switch. If the switch does not have continuity the switch has failed and need
to be replaced.
Down Pressure relief
valve setting too low
The motor will be starting and stopping rapidly or running constantly. The
down pressure relief valve can be adjusted. It is recommended that you take
the plow to your local Sno-Way dealer to determine if the adjustment is set to
the proper pressure setting. To adjust remove the top cap of the down
pressure relief valve. Using an Allen wrench turn the set screw inside the
valve clockwise 1/4 turn until the motor cycling stops for a minimum of 45
sec. If this can not be achieved the relief valve is damaged and needs to be
replaced.
Valve (E) sticking or stuck
closed
Check to make sure there is magnetism on coil ( E ). If there is remove ( E )
valve and swap it with valve (F). If down pressure now works the valve is
sticking and needs to be cleaned or replaced.
Valve (F) sticking or stuck
open
Check to make sure there is not magnetism on coil ( F ). If there is remove (
F ) valve and swap it with valve ( E ). If the motor stops running and the
down pressure now works the valve is sticking and needs to be cleaned or
replaced.
Broken wire/ open circuit
in down pressure
electrical circuit
Check wiring harness to make sure the connection had not been severed or
shorted on to a different ground causing the pressure switch or float / raise
(F) valve to stay open.
Hydraulic fluid level low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Low or no current
available at angle coil (A
or D) BAD GROUND
Check wiring harness to make sure the connection had not been severed. If
a ground a present when operated from the red (A) or green (D) wire one of
the coils may be weak. Swap the coil with another coil on the valve block. If
the problem moves to a different function replace coil.
Angle coil (A or D)
inoperative
Check to see if the red (A) or green (D) wire has a ground signal. If it does
and the coil is not magnetized the coil needs to be replaced.
Angle cylinder binding or
bent
Visually inspect cylinder. If it is damaged replace cylinder.
Pick-up tube not
submerged in fluid
Add fluid to the fill line. See maintenance section of owners manual.
Blade will not angle
(motor runs)
(continued)
29
TROUBLESHOOTING GUIDE
PROBLEM
Blade will not angle
(motor runs)
(continuation)
Unit angles very
slowly
Unit angles in one
direction
Unit does not hold
angle
Note: This problem
is usually noted
when pushing
snow.
PROBABLE CAUSE
CORRECTIVE ACTION
Pilot operated check
valve sticking or stuck
closed
Remove pilot check valve and inspect both cartridges and piston. It the valve
has external springs make sure they both are not damaged and installed
properly. Clean valves and re install.
Angle valve (A or D) not
operating
Swap the (A or D) valve out with the (C) raise valve and see if the angle
function works. If the problem moves to the raise function replace valve.
Hydraulic fluid level low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Pivot bolt too tight
clamping a-frame to
swing frame
Loosen pivot bolt slightly to free up swing frame movement.
Improper oil viscosity for
outside air temperature/
Ice in hydraulic tank
This will effect all functions. Replace hydraulic fluid with Sno-Way hydraulic
fluid.
Damaged cylinder
Visually inspect cylinder. If it is damaged replace cylinder.
Cylinder packing
improperly torqued or dry
Turn the Gland nut counter clockwise about 1/4 turn. If this does not fix the
issue replace cylinder.
Crossover relief valve
pressure setting too low
All other problems should be addressed before moving to the cross over
relief valve. If the cross over relief valve is not set properly you will also
notice the plow not holding angle when plowing. If this is the case replace
cross over relief valve.
Angle coil (A or D )
inoperative
Check to see if the red (A) or green (D) wire has a ground signal. If it does
and the coil is not magnetized the coil needs to be replaced.
Low or no current
available at angle coil (A
or D)
Check wiring harness to make sure the connection had not been severed. If
a ground is present when operated from the red (A) or green (D) wire one of
the coils may be weak. Swap the coil with another coil on the valve block. If
the problem moves to a different function replace coil.
Angle valve (A or D) not
operating
Swap the (A or D) valve out with the ( C ) raise valve and see if the angle
function works. If the problem moves to the raise function replace valve.
Angle cylinder binding or
bent
Visually inspect cylinder. If it is damaged replace cylinder.
Crossover relief valve
sticking or stuck
Remove cross over relief valve and inspect. Clean if possible or replace
crossover relief valve.
Cross over relief valve
pressure setting too low,
sticking or stuck
Replace crossover relief valve.
Pilot check valve has
debris or damaged piston
Remove pilot check valve and inspect both cartridges and piston. It the valve
has external springs make sure they both are not damaged and installed
properly. Clean valves and re install.
30
TROUBLESHOOTING GUIDE
PROBLEM
Fluid leaking at
power unit
Wing does not hold
position
31
PROBABLE CAUSE
CORRECTIVE ACTION
Hydraulic fittings not
torqued properly (too
tight, too loose)
Inspect fitting tighten if too loose. If too tight inspect hose fitting for cracks.
Check O-rings on fittings on valve block to see if they are damaged. Replace
hoses or O-ring if they are available.
O-rings between valve
block and base are worn/
missing or not seating
properly
If the oil is leaking from between the top valve block and the base, remove
the screws that hold the top valve block to the base. Check the O-rings. If
they are damaged replace and seat properly.
O-rings between base
and the reservoir worn or
not seating properly
Drain the oil out of the reservoir. Remove the tank. Inspect the O-ring on the
base block. If it is damaged or not seated properly re seat or replace the Oring.
Reservoir over-full
Oil will leak out of the breather cap if this is the problem. Remove hydraulic
fluid down to the fill line on the reservoir.
Pump shaft seal leaking
This can be determined if there is oil leaking from the motor housing.
Remove the motor. Drain the oil out of the reservoir and remove. Remove
the pump from the base. Remove the pump seal. Install new seal. Reinstall
all components removed.
Valve block cap screw
loose
Tighten cap screw.
Reservoir fasteners loose
Tighten reservoir fastener or replace if damaged.
Ground signal at retract
coil (J or K) without
activation
Test the control receiver to see if there is a ground signal sent to the wing
retract coils (J or K) without activation. This can be done using a Sno-Way
control test box (99101028). If you do not have a test box remove the two
wires off of the (J or K) coils and check to see if the white (J) or green with
the white trace (K) wire has a ground signal coming from it. The control will
need to be turned on. If the ground is present the receiver (black/yellow box
on snow plow) will need to be replaced. You should also check the OHM
reading on the (J or K) coils as well as the other coils on the valve block. If
the OHM reading on the (J or K) coil does not read the same as the other
coils replace the coil as well.
,Valve J or K sticking or
stuck
Swap the J and the K valves. If the problem moves clean or replace the
valve.
Relief valve setting too
low
Wing does not hold pressure under small load. Replace relief valve.
Relief valve sticking or
stuck
Remove relief valve and inspect. Clean if possible or replace.
TROUBLESHOOTING GUIDE
PROBLEM
Wing does not
extend
Wing does not
retract
Blade wing(s) will
not move
PROBABLE CAUSE
CORRECTIVE ACTION
Hydraulic fluid low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Low or no current
available at wing extend
coil (G or H),
Check wiring harness to make sure the connection had not been severed. If
ground is present when operated from the Orange (G) or Violet (H) wire one
of the coils may be weak. Swap the coil with another coil on the valve block.
If the problem moves to a different function, replace coil.
Wing extend coil (G or H)
Inoperative
Check to see if the orange (G) or violet (H) wire has a ground signal. If it
does and the coil is not magnetized the coil needs to be replaced.
Wing extend valve (G or
H) not operating
Swap the (G or H) valve out with one of the angle valve (A or D) and see if
the wing extend function works. If the problem moves to the angle function
replace valve.
Return spring not properly
tensioned
Adjust spring tension.
Low or no current
available at wing retract
coil (J or K)
Check wiring harness to make sure the connection had not been severed. If
a ground is present when operated from the white (J) or green with black
trace (K) wire one of the coils may be weak. Swap the coil with another coil
on the valve block. If the problem moves to a different function replace coil.
Wing retract coil (J or K)
inoperative
Check to see if the white (J) or green with black trace (K) wire has a ground
signal. If it does and the coil is not magnetized the coil needs to be replaced.
Wing retract valve (J or K)
stuck or not operating
With the plow on the ground, swap the (J or K) valve out with one of the float/
DP valve (B) and see if the wing retract function works. If the problem moves
to the DP function, replace valve.
Hydraulic fluid level low
Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Pickup tube not
submerged in hydraulic
fluid
Fluid level is low fill with Sno-Way hydraulic fluid up to fill line on reservoir.
Wing relief valve pressure
setting too low
The wing will not hold pressure when plowing. Replace relief valve.
Wing cylinders bound or
frozen
Push plow wings against a curb to try and free up the cylinders. If they do not
move replace cylinders.
32
THEORY OF OPERATION
29G, 29HD, 29THD and 32 Series
Hydraulic Power Unit
Control systems using this style controller (Figure 3-1)
when turned ON send +12V DC power to all valve coils.
The hydraulic power unit consists of:
12V DC Motor
Hydraulic pump rated at 1.54 GPM @ 1500 PSI
1.35 quart capacity reservoir
fine mesh intake and return filters
Filter screens on all outlet ports
The fluid supply line for the pump is submerged in the
hydraulic fluid reservoir and is equipped with a fine mesh
intake filter screen.
The 12V DC motor is protected electrically by a 250 amp
fuse located between the battery and the motor solenoid.
The hydraulic pump is protected by a 2100 PSI system
relief valve.
If this unit is equipped with a down pressure option, this
will allow the operator to selectively switch the system to
provide additional hydraulic force to the cutting edge of
the plow.
IMPORTANT: For proper operation, ProControl
system solenoid coils require a minimum of 10.5
volts DC, while earlier system coils require a
minimum of 9.5 volts DC. Lower voltage will cause
erratic operation, or failure to operate.
Hydraulic Controls
The hydraulic controls consist of:
• System pressure relief valve, set to 2100 PSI.
• One crossover relief valve, set to 2400 PSI.
• Two three-way two position hydraulic valves for
angle left or right functions.
• Two single acting hydraulic cylinders for angle left
and right functions.
• One three-way two position, one two-way two position valve, and one check valve for raise and lower
function for gravity plows.
• One three-way two position, three two-way two position valves and two check valves for raise, lower and
down pressure functions for down pressure plows.
• One down pressure relief valve for down pressure
plows.
Electro-Hydraulic Operation
All hydraulic functions are controlled by the 12V DC
electrical system which energize coils on the hydraulic
valve and the power unit motor start solenoid.
33
Figure 3-1
ProControl and ProControll II systems (Figure 3-2)
directly apply +12V DC power to all valve coils as soon as
power is connected to the plow.
.
PROCONTROL
PROCONTROL II
Figure 3-2
All systems employ ground switching to energize the
hydraulic valve coils. The individual coils are energized as
required when the control circuit board or receiver module
completes the coil circuit path to ground by means of a
signal from the wired or wireless hand-held controller in
the vehicle.
Raise Mode Of Operation
Actuating the ’Raise’ switch on the hand-held controller
sends a signal to the control circuit board on the plow,
which then actuates the motor start solenoid and the coil
for the ’C’ valve.
Actuating the start solenoid sends current to the power
unit motor to cause the power unit to pump hydraulic fluid.
Hydraulic fluid under pressure is directed through the ’C’
valve to the lift cylinder causing it to extend and raise the
plow. On down pressure plows, the ’F’ valve is also
actuated to allow fluid in the rod end of the double acting
raise cylinder to return to the reservoir.
When the ’Raise’ switch on the hand-held controller is
released, the start solenoid circuit is broken, the motor
stops, the circuit to the coil for the ’C’ valve and (if a down
pressure plow) the ’F’ valve is broken and these valves go
to their normally closed positions.
Lower Mode Of Operation - Gravity
Down and Float
Actuating the ’Lower’ switch on the hand-held controller
sends a signal to the control circuit board on the plow.
This actuates the coil for the ’B’ valve and (if a down
pressure plow) the ’F’ valve, allowing hydraulic fluid to
flow from the lift cylinder to the reservoir.
Once the ’Lower’ switch has been actuated, the system
will stay in this mode until the ’Raise’ function is actuated
or control is shut off, allowing hydraulic fluid to flow
between the reservoir and the lift cylinder. This allows the
lift cylinder to extend and retract as necessary to follow
ground contours while plowing.
Down Pressure (DP) System
This system operates only when both the ’DP’ switch and
the ’Lower’ switch on the hand-held controller are
actuated.
Actuating the ’DP’ switch actuates the pressure switch,
the ’B’ valve coil, the ’E’ valve coil and, through the
pressure switch, the start solenoid as required. When the
’E’ is actuated and the hydraulic pump operates, hydraulic
fluid is directed to the rod end of the lift cylinder, retracting
the cylinder and forcing the plow down.
The pressure switch in this system senses the pressure of
the fluid in the lift cylinder and closes when the pressure
becomes low, allowing the motor and the pump to pump
fluid into the rod end of the cylinder. When the pressure
reaches the proper level the switch opens, shutting off the
motor and the pump.
The system is protected by a relief valve, which relieves
excess pressure if the plow is forced up, such as by a
bump or obstacle in the roadway. Once any obstacle is
cleared, the plow can return to a lower position, which will
also lower the pressure. If the pressure becomes too low,
the pressure switch will activate the motor and pump as
mentioned above to return pressure to normal levels.
Angle Left or Right Mode of Operation
Actuating the ’Angle Right’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’A’ valve, allowing hydraulic fluid under pressure to flow
through the ’A’ valve to the swing cylinder. At the same
time, the hydraulic fluid passing through the ’A’ valve
unseats a check valve in the circuit for the ’D’ valve,
allowing hydraulic fluid to flow from the opposite swing
cylinder through the ’D’ valve and back to the reservoir.
Actuating the ’Angle Left’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’D’ valve, allowing hydraulic fluid under pressure to flow to
the swing cylinder. This fluid also unseats a check valve
in the circuit for the ’A’ valve, allowing fluid to flow from the
opposite swing cylinder through the ’A’ valve and back to
the reservoir.
The angle circuits are protected by a crossover relief
valve set to relieve pressure on the circuit a 2400 PSI. If
the blade of the plow contacts an obstacle during plowing
operations, the crossover relief valves will allow fluid to
flow out of the swing cylinder on the side encountering the
obstacle, allowing the cylinder to retract and allowing the
blade to adjust its angle to relieve the force from the
outside.
Fuse
A fuse is located near the battery in the primary 12V DC
positive power circuit and is in place to protect the
electrical system against direct shorts. A high amp draw
condition will cause the element in the fuse to interrupt
current flow to the plow. The fuse will need to be replaced
after interruption.
The down pressure system is overridden any time the
plow control is placed in the ’Raise’ mode, but will resume
when placed back in the ’Lower’ position.
Also, note that the ’E’ valve is deactivated anytime an
angle function is activated, but returns to its previous
condition as soon as the angle function is completed.
34
THEORY OF OPERATION
29R Series
Hydraulic Power Unit and Controls
Electro-Hydraulic Operation
The hydraulic power unit consists of:
All hydraulic functions are controlled by the 12V DC
electrical system which actuates coils on the hydraulic
valves and the solenoid for the electric motor of the power
unit.
12V DC Motor
Hydraulic pump rated at 1.54 GPM @ 1500 PSI
1.35 quart capacity reservoir
Fine mesh intake and return filters
Filter screens on all outlet ports
The fluid supply line for the pump is submerged in the
hydraulic fluid reservoir and is equipped with a fine mesh
intake filter screen.
The 12V DC motor is protected electrically by a 250 amp
fuse located between the battery and the motor solenoid.
The hydraulic pump is protected by a 2100 PSI system
relief valve.
This unit is equipped with a down pressure function that
allows the operator to selectively switch the system to
provide additional hydraulic force to the cutting edge of
the plow.
IMPORTANT: The electric coils, which operate the
solenoid valves, require a minimum of 10.5 volts DC
for proper operation. Lower voltage will cause erratic
operation, or failure to operate.
12V DC power is fed from the battery post of the motor
start solenoid through a 10 amp fuse to a control circuit
board on the plow and from the circuit board to each coil.
Each coil is actuated by completing a circuit to ground
through the coil and the circuit board by means of a signal
to the circuit board from the hand- held controller in the
vehicle, either by a wire transmitted signal or a radio
signal.
NOTE: This is a ground switching system and has power
on the coils as soon as power is connected to the plow.
The receiver module energizes the coils by providing a
ground path to them.
Raise Mode Of Operation
Actuating the ’Raise’ switch on the hand-held controller
sends a signal to the control circuit board on the plow,
which then actuates the motor start solenoid and the coil
for the ’C’ valve. (See Figure 3-3)
The MBR Revolution hydraulic controls consist of:
• System pressure relief valve, set to 2100 PSI.
• One crossover relief valve, set to 2400 PSI.
• Two three-way two position hydraulic valves for
angle left or right functions.
• Two single acting hydraulic cylinders for angle left
and right functions.
• One three-way two position, three two-way two position valves and two check valves for raise, lower and
down pressure functions.
• One down pressure relief valve, set to 680-720 PSI.
• Two single acting spring return hydraulic cylinders
for left and right wing functions.
• Two three-way two position, two two-way two position valves and two pressure relief valves set to
1400 PSI for wing functions.
C
F
Figure 3-3
Actuating the start solenoid sends current to the power
unit motor to cause the power unit to pump hydraulic fluid.
Hydraulic fluid under pressure is directed through the ’C’
valve to the lift cylinder causing it to extend and raise the
plow. The ’F’ valve is also actuated to allow fluid in the rod
end of the double acting raise cylinder to return to the
reservoir.
When the ’Raise’ switch on the hand-held controller is
released, the start solenoid circuit is broken, the motor
stops, the circuits to the coils for the ’C’ and ’F’ valves are
interrupted and these valves go to their normally closed
positions.
35
Lower Mode Of Operation Gravity Down and Float
Lower Mode Of Operation Down PressureTM Hydraulic (DP) System
Actuating the ’Lower’ switch on the hand-held controller
sends a signal to the control circuit board on the plow.
This actuates the coil for the ’B’ valve and the ’F’ valve,
allowing hydraulic fluid to flow from the lift cylinder to the
reservoir. (See Figure 3-4)
This system operates only when both the ’DP’ switch and
the ’Lower’ switch on the hand-held controller are
actuated.
Actuating the ’DP’ switch actuates the pressure switch,
the ’B’ valve coil, the ’E’ valve coil and, through the
pressure switch, the start solenoid as required. When the
’E’ is actuated and the hydraulic pump operates, hydraulic
fluid is directed to the rod end of the lift cylinder, retracting
the cylinder and forcing the plow down. (See Figure 3-5)
E
F
B
Figure 3-4
Once the ’Lower’ switch has been actuated, the system
will stay in this mode until the ’Raise’ function is actuated
or control is shut off, allowing hydraulic fluid to flow
between the reservoir and the lift cylinder. This allows the
lift cylinder to extend and retract as necessary to follow
ground contours while plowing.
B
Figure 3-5
The pressure switch in this system senses the pressure of
the fluid in the lift cylinder and closes when the pressure
becomes low, allowing the motor and the pump to pump
fluid into the rod end of the cylinder. When the pressure
reaches the proper level the switch opens, shutting off the
motor and the pump.
The system is protected by a relief valve which relieves
excess pressure if the plow is forced up, such as by a
bump or obstacle in the roadway. Once any obstacle is
cleared, the plow can return to a lower position, which will
also lower the pressure. If the pressure becomes too low
, the pressure switch will activate the motor and pump as
mentioned above to return pressure to normal levels.
The down pressure system is overridden any time the
plow control is placed in the ’Raise’ mode, but will resume
when placed back in the ’Lower’ position.
Also, note that the ’E’ valve is deactivated anytime an
angle or wing function is activated, but returns to its
previous condition as soon as the angle function is
completed.
36
Angle Left or Right Mode of Operation
Left or Right Wing Mode of Operation
Actuating the ’Angle Right’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’A’ valve, allowing hydraulic fluid under pressure to flow
through the ’A’ valve to the swing cylinder. At the same
time, the hydraulic fluid passing through the ’A’ valve
unseats a check valve in the circuit for the ’D’ valve,
allowing hydraulic fluid to flow from the opposite swing
cylinder through the ’D’ valve and back to the reservoir.
(See Figure 3-6)
Actuating the ’Right Wing Extend’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’G’ valve, allowing hydraulic fluid under pressure to flow
through the ’J’ valve in its rested position to the right wing
cylinder. (See Figure 3-7)
G
H
D
J
K
Figure 3-7
A
Figure
3-6
Actuating the ’Angle Left’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’D’ valve, allowing hydraulic fluid under pressure to flow to
the swing cylinder. This fluid also unseats a check valve
in the circuit for the ’A’ valve, allowing fluid to flow from the
opposite swing cylinder through the ’A’ valve and back to
the reservoir.
The angle circuits are protected by a crossover relief
valve set to relieve pressure at 2400 PSI. If the blade of
the plow contacts an obstacle during plowing operations,
the crossover relief valves will allow fluid to flow out of the
swing cylinder on the side encountering the obstacle,
allowing the cylinder to retract and allowing the blade to
adjust its angle to relieve the force from the outside.
37
Actuating the ’Right Wing Retract’ switch on the handheld controller sends a signal to the control circuit board
on the plow. This actuates the coil for the ’J’ valve,
allowing hydraulic fluid to flow through the ’G’ valve in its
rested position and back to the reservoir.
Actuating the ’Left Wing Extend’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coil for the
’H’ valve allowing hydraulic fluid under pressure to flow
through the ’K’ valve in its rested position to the left wing
cylinder.
Actuating the ’Left Wing Retract’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the coil for the ’K’ valve, allowing
hydraulic fluid to flow through the ’H’ valve in its rested
position and back to the reservoir.
Both wing circuits are protected by a relief valve set to
relieve pressure on the circuit at 1400 PSI. If either wing
contacts an obstacle during plowing operations, the relief
valves will allow fluid to flow out of the wing cylinder on the
side encountering the obstacle and allow the cylinder to
retract.
Dual Wing Mode of Operation
Actuating the ’Dual Wing Extend’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the start solenoid and the coils for the
’G’ and ’H’ valves, allowing hydraulic fluid under pressure
to flow through the ’J’ and ’K’ valves respectively, allowing
hydraulic fluid under pressure to flow to both wing
cylinders. (See Figure 3-8)
G
H
Actuating the ’Dual Wing Retract’ switch on the hand-held
controller sends a signal to the control circuit board on the
plow. This actuates the coils for the ’J’ and ’K’ valves,
allowing hydraulic fluid to flow through the ’G’ and ’H’
valves respectively and back to the reservoir.
Both wing circuits are protected by a relief valve set to
relieve pressure on the circuit at 1400 PSI. If either wing
contacts an obstacle during plowing operations, the relief
valves will allow fluid to flow out of the wing cylinder on the
side encountering the obstacle and allow the cylinder to
retract.
Fuse
A 250 Amp fuse is located near the battery in the primary
12V DC positive power circuit and is in place to protect the
electrical system against direct shorts. A high current
draw condition will cause the fuse to open and interrupt
power to the plow. Once the cause of the high current
situation is identified and corrected replace the fuse.
J
K
Figure 3-8
29R Power Unit Components
S.N. Before 29R100604
RAISE
CHECK
VALVE
PILOT OPERATED
DP
LOWER
RELIEF VALVE ORIFICE
CHECK VALVE
RV5 WING
RELIEF VALVE
GP
C2
C6
E
A
C
F
D
G
B
J
H
K
XRV
RV6 WING
RELIEF VALVE
CK
CHECK
VALVE
C3
C4
C1
C5
SYSTEM RELIEF
PILOT OPERATED
CHECK VALVE
DP
PRESSURE
SWITCH
S.N. 29R100604 and After
RV5 WING
RELIEF VALVE
DP
RELIEF VALVE
RAISE
CHECK
VALVE
PILOT OPERATED
CHECK VALVE
XRV
GP
C1
H
E
K
C5
CK
CHECK
VALVE
C
B
F
C4
DP
PRESSURE
SWITCH
D
A
G
J
C6
C3
SYSTEM
RELIEF
PILOT OPERATED
CHECK VALVE
C2
RV6 WING
RELIEF VALVE
38
HYDRAULIC SCHEMATIC
(Gravity Down System)
RIGHT CYLINDER
LEFT CYLINDER
C1
C2
UP
CROSSOVER RELIEF
VALVE 2400 PSI
RAISE
CYLINDER
C3
CROSS OVER RELIEF
VALVE 2400 PSI
FLOAT
VALVE
PILOT OPERATED
CHECK VALVES
B
RAISE
VALVE
RIGHT
ANGLE
VALVE
C
A
LEFT ANGLE
VALVE
D
GP
RELIEF VALVE
2400 PSI
12VDC
MOTOR
PUMP
SCREEN (5 PLACES)
39
HYDRAULIC SCHEMATIC
(Down Pressure System)
RAISE CYLINDER
UP
LEFT CYLINDER
C4
C3
RIGHT CYLINDER
C1
C2
DP PRESSURE
SWITCH 525 PSI
CROSSOVER
RELIEF
VALVE 2400 PSI
DP RELIEF
VALVE
680 - 720 PSI
CROSSOVER
RELIEF
VALVE 2400 PSI
DP
PILOT
OPERATED
CHECK
VALVES
FLOAT / DP
VALVE B
F
CHECK
VALVE
CK
RAISE/
FLOAT
VALVE
DP
VALVE
E
RAISE
VALVE
C
RIGHT
ANGLE
VALVE
A
LEFT
ANGLE
VALVE
D
CHECK
VALVE
GP
12VDC
MOTOR
SYSTEM RELIEF
2100 PSI
PUMP
SCREEN (6 PLACES)
40
HYDRAULIC SCHEMATIC
(Down Pressure System)
With S.N. After 29R100000
NOTE: DS - Driver (Left) Side; PS - Passenger (Right) Side
41
WIRING SCHEMATIC
(Gravity Down System)
With S.N. Before: 29G100300, 32C100100
CONTROLLER STYLE
42
WIRING SCHEMATIC
(Down Pressure System)
With S.N. Before: 29D102300, 29HDD100600, 32D102800
CONTROLLER STYLE
43
WIRING SCHEMATIC
(Gravity Down System)
With S.N. After 29G200000, 29THDG100000
44
WIRING SCHEMATIC
(Down Pressure System)
With S.N. After: 29HDD200000, 29THDD100000, 32D200000
45
WIRING SCHEMATIC
(Down Pressure System)
With S.N. After 29R100000
46
MAIN WIRING HARNESS SCHEMATIC
(Energy Interruption System)
47
TORQUE SPECIFICATIONS
5.1
5
1 or 2
SAE
Grade
and Head
Markings
8.2
No Marks
5
2
SAE
Grade
and Nut
Markings
8
No Marks
Grade 1
Lubricated
SIZE
8
5.2
lb-ft
Grade 2
a
Dry
b
lb-ft
Lubricated
Grade 5, 5.1 or 5.2
a
Dry
b
a
Grade 8 or 8.2
b
Lubricated
Dry
Lubricateda
Dryb
lb-ft
lb-ft
lb-ft
lb-ft
lb-ft
lb-ft
8-32
14*
19*
22*
30*
31*
42*
10-24
21*
27*
32*
43*
45*
60*
1/4
2.8
3.5
4.5
5.5
7
9
10
12.5
5/16
5.5
7
9
11
15
18
21
26
3/8
10
13
16
20
26
33
36
46
7/16
16
20
26
32
41
52
58
75
1/2
25
31
39
50
63
80
90
115
9/16
36
45
56
70
90
115
130
160
5/8
50
62
78
100
125
160
160
225
3/4
87
110
140
175
225
280
310
400
7/8
140
175
140
175
360
450
500
650
1
210
270
210
270
540
675
750
975
METRIC COARSE THREAD
Grade 8.8
Grade 8.8
Grade 10.9
Grade 12.9
Dry
Lubed
Dry
Lubed
Dry
Lubed
M6-1
8
6
11
8
13.5
10
M8-1.25
19
14
27
20
32.5
24
M10-1.5
37.5
28
53
39
64
47
M12-1.75
65
48
91.5
67.5
111.5
82
M14-2
103.5
76.5
145.5
108
176.5
131
M16-2
158.5
117.5
223.5
165.5
271
200
DO NOT use these values if a different torque value or tightening procedure is given for a specific application.
Fasteners should be replaced with the same or higher grade. If higher grade fasteners are used, these should only be
tightened to the strength of the original.
a
“Lubricated” means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
b
“Dry” means plain or zinc plated without any lubrication
* Values with asterisk are in lb-in.
48
SNO-WAY® INTERNATIONAL, INC.
Hartford, WI 53027 USA
Website: www.snoway.com
©2014 Sno-Way® International
DEALER PRE DELIVERY CHECKLIST
The following inspections MUST be accomplished prior to delivering the snowplow to the customer.
Place an X x in the box after accomplishing each item on the checklist.
CHECK THAT
Parts have not been damaged in shipment. Repair or replace items that are loose, dented or missing.
All covers, guards and decals are in place and attached securely.
All pivot pins and cotters are installed and secure.
Trip springs are adjusted.
Shoe assemblies are installed and adjusted.
Snow plow headlamps are adjusted properly.
Snow plow headlamps are functional.
High Beam
Low Beam
Park Lamps
Left Turn
Right Turn
Headlamp Beam Aimed Correctly
Cylinder lock clamp is installed.
Start the vehicle engine and place an X x in the box after accomplishing each item on the checklist.
CHECK THAT
ALL blade functions work properly.
Cylinders, hoses and fittings DO NOT leak.
Listen for abnormal noises or vibrations; Repair or replace as necessary.
The Power Unit is properly filled.
DELIVERY CHECKLIST
The following checklist is to be accomplished with the customer present, Place an X x in the box after accomplishing
each item on the checklist.
After giving the Customer his Owner’s Manual, instruct him to read it PRIOR to operating the Snow Plow. If he
has any questions or does not understand part(s) of the Manual, ask him to contact the Dealer for answers or
explanations BEFORE operating the unit.
Record the Serial Numbers, Date of Purchase, Purchaser’s Name and Address, and the Dealers Name,
Address and Phone Number in the space provided on Page 1 of the Owner’s Manual.
Explain mounting and removal procedures.
Demonstrate power plow controller operation.
Demonstrate cylinder lock clamp installation.
Demonstrate Down Pressure hydraulic system function and operation. (If unit is so equipped)
Fill out Warranty Registration Card and mail COPY 1 to the factory to validate Warranty. NO Warranty
claims can be honored if the Warranty Card is not on file at the factory.
SNO-WAY® INTERNATIONAL, INC.
Hartford, WI 53027 USA
Website: www.snoway.com
©2014 Sno-Way® International

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