SnowEx RDV V-Plow User manual

June 15, 2020
Lit. No. 30118, Rev. 00
MECHANIC'S GUIDE
for the
RDV™V-Plow
CAUTION
Read this manual before servicing the snowplow.
SNOWPLOWS

Lit. No. 30118, Rev. 00 June 15, 2020
TABLE OF CONTENTS
INTRODUCTION ..............................................................................................4
Recommended Tools...................................................................................4
Available Service Items ...............................................................................4
SAFETY ............................................................................................................5
Torque Chart ................................................................................................7
BLADE, T-FRAME & HEADGEAR.................................................................8
T-Frame Hole Position .................................................................................8
T-Frame to Blade Assembly ........................................................................9
Center Deflector, Blade Guides, and Angle Ram Adjustment ...................11
Using the Blade Spring Replacement Tool ................................................12
HYDRAULIC SYSTEM ..................................................................................13
Hydraulic System Specifications................................................................13
Hydraulic Unit Components .......................................................................14
Valve Location ...........................................................................................15
Cartridge Valves ........................................................................................16
Check Valves and Relief Valves ................................................................17
Hydraulic Fitting and Hose Installation ......................................................18
Ram Seal Installation.................................................................................19
Cartridge and Check Valve Removal........................................................ 20
Blade Drop Speed Adjustment ................................................................. 20
VEHICLE-SIDE ELECTRICAL COMPONENTS .........................................21
Harness Diagram.......................................................................................21
Harness Diagram – LED Headlamps........................................................ 22
CONTROLS – FLEET FLEX ELECTRICAL SYSTEM............................... 23
Overview................................................................................................... 23
Operating the POWER GRIP™ Hand-Held Control..................................24
Operating the Joystick Control.................................................................. 26
FLEET FLEX ELECTRICAL SYSTEM .........................................................28
Smooth Stop and One-Touch Float Features ............................................28
SECURITY GUARD™ Snowplow Anti-Theft System ............................... 29
ELECTRICAL & HYDRAULIC SCHEMATICS............................................32
Legend – Electrical & Hydraulic Symbols..................................................32
Electrical Schematic – RDV™ V-Plow...................................................... 33
Hydraulic Schematic – RDV V-Plow ......................................................... 34
Raise......................................................................................................... 35
Lower/Float ................................................................................................37
Angle Right .............................................................................................. 39
Angle Left ..................................................................................................41
BUCKET BLADE™ (Vee) ......................................................................... 43
Compact (Scoop) ...................................................................................... 45
Right (PS) Wing Extend .............................................................................47
Right (PS) Wing Retract............................................................................ 49
Left (DS) Wing Extend ...............................................................................51
Left (DS) Wing Retract.............................................................................. 53
Hold in Raise Position .............................................................................. 55
Striking an Object While Plowing Forward ............................................... 56
Striking an Object While Back Dragging....................................................57
Detach....................................................................................................... 58
Attach........................................................................................................ 59
Scrape Maxx™ Down Force Kit................................................................ 60
Headlamps.................................................................................................62
Electrical/Harnesses...............................................................................62
Electrical Schematics ............................................................................ 63
TROUBLESHOOTING.................................................................................. 69
How to Use the Troubleshooting Guide .....................................................70
Electrical Testing........................................................................................70
Fuse Replacement.....................................................................................70
Before You Begin .......................................................................................71
Solenoid Coil Activation Test (SCAT).........................................................72
Individual Solenoid Coil Test......................................................................75
Control/Cable/Plow Module Test ...............................................................76
Motor and Motor Relay Test...................................................................... 77
Pump Pressure Test ..................................................................................78
Relief Valve Inspection and Adjustment ....................................................79
Scrape Lock Adjustment........................................................................... 80
Replacing Damaged Bearing Sleeves .......................................................82

Lit. No. 30118, Rev. 00 June 15, 2020
4
This guide has been prepared to assist the
trained mechanic in the service of SnowEx®
RDV™ V-plows. It also provides safety information
and recommendations. We urge all mechanics to
read the safety statements and instructions in this
guide carefully before attempting to service the
snowplow equipment covered by this guide.
Service of your SnowEx snowplow equipment is
best performed by your local SnowEx products
dealer. They know your snowplow best and are
interested in your complete satisfaction.
INTRODUCTION
RECOMMENDED TOOLS
• Long/slender needle-nose pliers
• Flat screwdriver
• 12V test light
• Torque wrench
• Hex key set, including 3/8"
• Combination standard wrench set
• 1/4" drive ratchet set with 6" extension
• 3/8" drive ratchet set
• Deep socket: 7/8"
• Digital volt/ohmmeter
• Ammeter
• Pressure test kit
• Flashlight
• Pick set
• Hammer
• Pencil magnet
• 5A mini fuses
• Vacuum pump with 3/8" NPT barbed fitting
• 3/8" NPT plug
AVAILABLE SERVICE ITEMS
• Motor Bearing Sleeve Repair Kit: PN 52251
(Requires 3/8"-24 x 4" cap screw, not
included.)
• Pressure Test Kit: PN 56686
(Requires adapter fitting, not included.)
• Spring Replacement Tool: PN 20043-1
• Diagnostic Harness Kit: PN 29290-2
• Pump Shaft Seal Repair Kit: PN 28856
(Requires 1/4"-28 x 4-1/2" cap screw, not
included.)

Lit. No. 30118, Rev. 00 June 15, 2020
5
NOTE: Indicates a situation or action that can
lead to damage to your snowplow and vehicle
or other property. Other useful information can
also be described.
SAFETY
WARNING/CAUTION AND
INSTRUCTION LABELS
Become familiar with and inform users about the
warning and instruction labels on the back of the
blade.
NOTE: If labels are missing or cannot be read,
see your local SnowEx®dealer.
CAUTION
Indicates a potentially hazardous situation
that, if not avoided, may result in minor
or moderate injury. It may also be used to
alert against unsafe practices.
WARNING
Indicates a potentially hazardous situation
that, if not avoided, could result in death or
serious personal injury.
SAFETY DEFINITIONS
Warning/Caution Label
Instruction Label
Warning Label

Lit. No. 30118, Rev. 00 June 15, 2020
6
SAFETY
SAFETY PRECAUTIONS
Improper installation and operation could cause
personal injury, and/or equipment and property
damage. Read and understand labels and the
Owner's Manual before installing, operating, or
making adjustments.
HYDRAULIC SAFETY
• Always inspect hydraulic components and
hoses before using. Replace any damaged or
worn parts immediately.
• If you suspect a hose leak, DO NOT use your
hand to locate it. Use a piece of cardboard or
wood.
WARNING
Lower the blade when vehicle is parked.
Temperature changes could change
hydraulic pressure, causing the blade to
drop unexpectedly or damaging hydraulic
components. Failure to do this could result
in serious personal injury.
WARNING
Remove blade assembly before placing
vehicle on hoist.
WARNING
The driver shall keep bystanders clear of
the blade when it is being raised, lowered,
or angled. Do not stand between vehicle
and blade or within 8 feet of a moving blade.
A moving or falling blade could cause
personal injury.
WARNING
Do not exceed GVWR or GAWR including
blade and ballast. The rating label is found
on driver-side vehicle door cornerpost.
WARNING
To prevent accidental movement of
the blade, always turn the control OFF
whenever the snowplow is not in use. The
power indicator light will turn OFF.
WARNING
Keep hands and feet clear of the blade and
T-frame when mounting or removing the
snowplow. Moving or falling assemblies
could cause personal injury.
CAUTION
Refer to the current online selection system
for minimum vehicle recommendations
and ballast requirements.
WARNING
Hydraulic fluid under pressure can cause
skin injection injury. If you are injured
by hydraulic fluid, get medical attention
immediately.
FUSES
The electrical and hydraulic systems contain
several automotive-style fuses. If a problem should
occur and fuse replacement is necessary, the
replacement fuse must be of the same type and
amperage rating as the original. Installing a fuse
with a higher rating can damage the system and
could start a fire. See the Troubleshooting section
of this guide for fuse replacement information.
PERSONAL SAFETY
• Remove ignition key and put the vehicle in
PARK or in gear to prevent others from starting
the vehicle during installation or service.
• Wear only snug-fitting clothing while working
on your vehicle or snowplow.
• Do not wear jewelry or a necktie, and secure
long hair.
• Wear safety goggles to protect your eyes from
battery acid, gasoline, dirt, and dust.
• Avoid touching hot surfaces such as the
engine, radiator, hoses, and exhaust pipes.
• Always have a fire extinguisher rated BC
handy, for flammable liquids and electrical
fires.

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7
TORQUE CHARTBATTERY SAFETY
NOISE
Airborne noise emission during use is below
70 dB(A) for the snowplow operator.
VIBRATION
Operating snowplow vibration does not exceed
2.5 m/s2to the hand-arm or 0.5 m/s2to the whole
body.
FIRE AND EXPLOSION
Be careful when using gasoline. Do not use
gasoline to clean parts. Store only in approved
containers away from sources of heat or flame.
CELL PHONES
A driver's first responsibility is the safe operation
of the vehicle. The most important thing you can
do to prevent a crash is to avoid distractions and
pay attention to the road. Wait until it is safe to
operate mobile communication equipment such as
cell phones, text messaging devices, pagers, or
two-way radios.
VENTILATION
SAFETY
1/4-20 109 154
1/4-28 121 171
5/16-18 150 212
5/16-24 170 240
3/8-16 269 376
3/8-24 297 420
7/16-14 429 606
7/16-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
7/8-14 474 669
644 9091-8
1-12 704 995
1/2-13
1/2-20
11.9
13.7
24.6
27.3
43.6
26.9
53.3
93
148
49.4
69.8
77.9
106.4
120.0
8.4
9.7
17.4
19.2
30.8
35.0
49.4
55.2
75.3
85.0
M6 x 1.00
M12 x 1.75
M8 x 1.25
M14 x 2.00
M10 x 1.50
M27 x 3.00
M22 x 2.50
M30 x 3.50
M24 x 3.00
M20 x 2.5011.1
19.5
38.5
67
107
7.7
613
778
1139
1545
450
428
562
796
1117
M33 x 3.50
M36 x 4.00
2101
2701
1468
1952
325
M16 x 2.00 231 167
M18 x 2.50 318222
Recommended Fastener Torque Chart
Size Size
Torque (ft-lb)
Grade
5
Grade
8
Metric Fasteners Class 8.8 and 10.9
These torque values apply to fasteners
except those noted in the instructions.
Torque (ft-lb)
Grade
5
Grade
8
Size Size
Torque (ft-lb)
Class
8.8
Class
10.9
Torque (ft-lb)
Class
8.8
Class
10.9
Inch Fasteners Grade 5 and Grade 8
CAUTION
Batteries normally produce explosive
gases, which can cause personal injury.
Therefore, do not allow flames, sparks, or
lit tobacco to come near the battery. When
charging or working near a battery, always
cover your face and protect your eyes, and
also provide ventilation.
• Batteries contain sulfuric acid, which
burns skin, eyes, and clothing.
• Disconnect the battery before removing
or replacing any electrical components.
CAUTION
Read instructions before assembling.
Fasteners should be finger tight until
instructed to tighten according to torque
chart. Use standard methods and practices
when attaching snowplow, including proper
personal protective safety equipment.
WARNING
Gasoline is highly flammable and gasoline
vapor is explosive. Never smoke while
working on vehicle. Keep all open flames
away from gasoline tank and lines. Wipe
up any spilled gasoline immediately.
WARNING
Vehicle exhaust contains lethal fumes.
Breathing these fumes, even in low
concentrations, can cause death. Never
operate a vehicle in an enclosed area
without venting exhaust to the outside.

Lit. No. 30118, Rev. 00 June 15, 2020
8
T-FRAME HOLE POSITION
IMPORTANT! Before assembling the headgear
to the T-frame, the T-frame hole position must
be determined using the following procedure.
(If the truck is not available, use the middle
position. Adjustments can be made later.)
Before measuring the vehicle mount height, the
vehicle mount must be installed, ballast must
be installed, if required, and the vehicle must be
parked on a level surface.
1. Measure the distance "d" from the ground to
the center of the hole in the vehicle mount.
Measure the distance on both sides of the
vehicle and determine average value for "d."
Center of Hole
in Vehicle Mount
d
BLADE, T-FRAME & HEADGEAR
2. Use distance "d" from Step 1 and the following
chart to determine the proper T-frame hole.
T-Frame Hole Chart
Distance "d" Hole
14.25" – 15.5" 1
13.0" – 14.25" 2
11.75" – 13.0" 3
Hole 1
Hole 2
Hole 3

Lit. No. 30118, Rev. 00 June 15, 2020
9
BLADE, T-FRAME & HEADGEAR
T-FRAME TO BLADE ASSEMBLY
1. Position the T-frame between the headgear
strut and inner ear, aligned with the appropriate
T-frame hole.
2. On each side, insert 3/4" x 3-1/4" clevis
pins (from the shipping bracket) from the
outside of the headgear through the correct
T-frame holes. Secure the clevis pins with
5/32" x 1-1/2" cotter pins found in the parts
bag.
Based on Installation Instructions for RDV™ V-Plow (Lit. No. 74912, Rev. 00).
3. Fold the headgear forward and pin
the lift cylinder to the T-frame using a
1/2" x 2-1/8" clevis pin and 5/32" x 1-1/2" cotter
pin from the parts bag.
3/4" x 3-1/4"
Clevis Pin
5/32" x 1-1/2"
Cotter Pins
1/2" x 2-1/8"
Clevis Pin
3/4" x 3-1/4"
Clevis Pins
Stacking Stop
3/4" Locknuts
4. If the T-frame was installed into the top hole,
install the stacking stops using
3/8” x 1-1/4” cap screws and 3/8” locknuts.

Lit. No. 30118, Rev. 00 June 15, 2020
10
BLADE, T-FRAME & HEADGEAR
T-FRAME TO BLADE ASSEMBLY
1. Remove the blade wings from the crate.
Remove the four shipping straps, then replace
the cutting edge hardware.
2. Align the hinges of each wing. Position the
T-frame assembly between the blade wings so
the holes in the T-frame are aligned with the
holes in wing hinges.
3. Insert the pivot pin from top to bottom through
all hinges as shown.
4. Move the snowplow into a normal operating
position.
5. Remove the protective packaging from the
angle rams.
6. Align the holes in the rod end of the angle ram
with the corresponding holes on the back of
the blade.
7. Install a 1/2" x 2-7/8" clevis pin (from the
shipping bracket) from the top down to
attach each rod. Secure the clevis pins with
5/32" x 1-1/2" cotter pins from the parts bag.
Pivot Pin
1/2" x 2-7/8"
Clevis Pins
5/32" x 1-1/2" Cotter Pins