Western Snowplows HTS User manual

May 1, 2010
Lit. No. 41467, Rev. 00
MECHANIC'S GUIDE
SNOWPLOWS
Featuring the
FloStat®Hydraulic System &
Isolation Module Light System
SNOWPLOWS
CAUTION
Read this manual before servicing the snowplow.

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TABLE OF CONTENTS
PREFACE......................................................................................................... 3
SAFETY INFORMATION................................................................................. 5
PRODUCT SPECIFICATIONS & REQUIRED TOOLS ................................... 8
ATTACHING/DETACHING SNOWPLOW FROM VEHICLE & STORAGE ....9
INSTALLING SNOWPLOW........................................................................... 10
VEHICLE LIGHTING CHECK.........................................................................17
HEADLAMP BEAM AIMING..........................................................................18
HYDRAULIC HOSE ROUTING......................................................................19
HYDRAULIC UNIT PARTS DIAGRAM......................................................... 20
SOLENOID CARTRIDGE VALVE IDENTIFICATION AND LOCATION....... 21
RELIEF VALVE IDENTIFICATION AND LOCATION.................................... 21
HYDRAULIC COMPONENT INSTALLATIONS............................................ 22
HTS™ CONTROLS........................................................................................ 23
Hand-Held Control................................................................................. 24
Joystick Control..................................................................................... 28
Master Control for the SECURITY GUARD™ System........................ 32
SYSTEM OVERVIEW – SNOWPLOW HYDRAULICS ................................. 33
3-PORT MODULE ......................................................................................... 33
Theory of Operation..............................................................................34
Wiring......................................................................................................38
4-PORT MODULE ......................................................................................... 42
Theory of Operation..............................................................................42
Wiring......................................................................................................43
HYDRAULIC AND ELECTRICAL SCHEMATICS......................................... 47
Hydraulic Schematic .............................................................................47
Raise ......................................................................................................48
Lower .....................................................................................................50
Angle Right.............................................................................................52
Angle Left...............................................................................................54
Hold in Raise Position – Hydraulic......................................................56
Striking an Object While Plowing........................................................57
Scrape Lock Function...........................................................................59
TROUBLESHOOTING GUIDE ......................................................................60
PILOT-OPERATED (POPPET STYLE) CHECK VALVE INSPECTION .......75
RELIEF VALVE INSPECTION AND ADJUSTMENT....................................76
PREFACE
This guide has been prepared to
assist the trained mechanic in the
service of WESTERN®snowplows.
It also provides safety information
and recommendations. We urge
all mechanics to read this manual
carefully before attempting to service
the WESTERN snowplow equipment
covered by this guide.
Service of your WESTERN snowplow
equipment is best performed by
your local Western Products outlet.
They know your snowplow best
and are interested in your complete
satisfaction.

Lit. No. 41467, Rev. 00 May 1, 2010
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Lit. No. 41467, Rev. 00 May 1, 2010
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 INFORMATION
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 sales outlet.
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
INSTRUCTIONS
ON
ON
OFF
OFF
After lowering blade and turning
control OFF, disconnect electrical
connections.
Pull and hold Lock Pin out; then rotate Handle UP
and release Lock Pin. It must lock into UPPER
hole. Stand Hook must grip Receiver Pin.
Plug in electrical connections.
Read Owner's Manual for complete instructions.
STEP 2 STEP 3
STEP 2 STEP 1
Handle
Stand Hook
(Pull)
Lock Pin
Receiver Pin
69661
Pull and hold Lock Pin out; then rotate Handle DOWN
and release Lock Pin. It must lock into LOWER hole.
Push top of Shoe DOWN; Shoe will be on the
ground.
MOUNTING PLOW (ON)
REMOVING PLOW (OFF)
U.S. patents 5,420,480; 6,145,222; 6,209,231; 6,253,470; 6,526,677; 6,928,757; 6,941,685; 7,400,058; 7,430,821; RE35,700; CAN patents 2,060,425; 2,354,257; and other patents pending.
Read Owner's Manual for complete instructions.
STEP 1
STEP 3
Shoe
Handle
After seating plow horns in receiver brackets,
pull Handle UP. Shoe will lift off the ground.
LOWER BLADE WHEN VEHICLE IS PARKED.
DO NOT EXCEED GVWR OR GAWR INCLUDING BLADE
AND BALLAST.
REMOVE BLADE ASSEMBLY BEFORE PLACING
VEHICLE ON HOIST.
READ OWNER'S MANUAL BEFORE OPERATING OR
SERVICING SNOWPLOW.
TRANSPORT SPEED SHOULD NOT EXCEED 45 MPH.
FURTHER REDUCE SPEED UNDER ADVERSE TRAVEL
CONDITIONS.
PLOWING SPEED SHOULD NOT EXCEED 10 MPH.
SEE YOUR SALES OUTLET/WEB SITE FOR SPECIFIC
VEHICLE APPLICATION RECOMMENDATIONS. 59900
WARNING
CAUTION
Warning and Caution Label
Instruction Label