Fisher Engineering EZ-V Manual de usuario
SNOWPLOW
MECHANIC'S GUIDE
Fisher Engineering
July 1997
No. 21856
CAUTION: Read this manual before servicing the FISH R® Z-V snowplow.
No. 21856 July 1997
2
PR FAC
This guide has been prepared to
assist the trained mechanic in the
service of FISHER® snowplows. It
also provides safety information and
recommendations. We urge all
mechanics to read this manual
carefully before attempting to service
the FISHER snowplow e uipment
covered by this guide.
Service of your FISHER snowplow
e uipment is best performed by your
local Fisher outlet. They know your
snowplow best and are interested in
your complete satisfaction.
TABL OF CONT NTS
Preface .............................................................................................................2
Safety Information ...........................................................................................3
Tools Re uired ................................................................................................5
Product Specifications ....................................................................................5
Hose Routing ...................................................................................................6
Hydraulic Unit Parts Diagram .........................................................................7
Solenoid Cartridge Valve Identification and Location ..................................8
Relief Valve Identification and Location ........................................................9
Pilot Operated Check Valve Identification and Location ............................10
Vehicle Harness and Vehicle Cable Location .............................................. 11
Operating the Snowplow ..............................................................................12
Theory of Operation ......................................................................................15
Hydraulic and Electrical Schematics ...........................................................17
Electrical Schematic .........................................................................18
Hydraulic Schematic ........................................................................19
Angle Right .......................................................................................20
Angle Left ..........................................................................................22
Right Retract .....................................................................................24
Right Extend .....................................................................................26
Left Retract........................................................................................28
Left Extend ........................................................................................30
Scoop ................................................................................................32
Vee .....................................................................................................34
Raise ..................................................................................................36
Lower .................................................................................................38
Hold in Raise Position Hydraulic ..................................................40
Striking an Object While Plowing Forward Hydraulic.................41
Striking An Object While Back Dragging Hydraulic ....................42
Headlamps Vehicle Only ...............................................................43
High Beam Headlamps With Plow Connected to Vehicle ..............44
Low Beam Headlamps With Plow Connected to Vehicle ...............45
Troubleshooting Guide .................................................................................46
Removable Spring Tool.................................................................................70
No. 21856 July 1997
3
SAF TY INFORMATION
WARNING
Indicates a potentially
hazardous situation that, if not
avoided, could result in death
or serious personal injury .
CAUTION
Indicates a situation that, if not
avoided, could result in minor
personal injury and/or damage
to product or property.
NOTE: Identifies tips, helpful
hints and maintenance
information the owner/operator
should know.
WARNING
Do not exceed GVWR or GAWR
(including blade and ballast) as
found on the driver-side door
cornerpost of the vehicle.
WARNING
Vehicle exhaust contains deadly
carbon monoxide (CO) gas.
Breathing this gas, even in low
concentrations, could cause
death. Never operate a vehicle
in an enclosed area without
venting exhaust to the outside.
WARNING
Hydraulic oil under pressure
could cause skin injection
injury. If you are injured by
hydraulic oil, get medical
treatment immediately.
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
Remove blade assembly before
placing vehicle on hoist. Failure
to do this could result in
personal injury.
WARNING
Lower 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 can result in serious
personal injury.
BEFORE YOU BEGIN
VENTILATION
If you work on the vehicle or
snowplow in a garage or other
enclosed area, be sure to vent
exhaust gas directly to the outside
through a leakproof exhaust hose.
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.
Park the vehicle on a level
surface, place shift lever in
PARK or NEUTRAL and set
parking brake.
Leave the snowplow mounted
on the vehicle and lowered for
most service procedures,
unless told otherwise.
PERSONAL SAFETY
Wear only snug-fitting clothing
while working on your vehicle
or snowplow.
Do not wear jewelry or a
necktie, and secure long hair.
Be especially careful near
moving parts such as fan
blades, pulleys and belts.
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, for flammable li uids
and electrical fires, handy.
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.
No. 21856 July 1997
4
SAF TY INFORMATION
Please bec me familiar with the Safety and Instructi n labels n the back f the blade!
Safety LabelInstruction Label
Instruction Label Safety Label
Pushplate
Attachment
Arm
Jack
Leg
Jack
Stand
Jack Lever
Jack Leg
Connecting Pin
Headgear
Carrying
Chain
Jack Leg (Raised)
Connecting
Pin Withdrawn
Lift Arm
MOUNTING PLOW
U.S. Patent
4,280,062, 4,999,935
5,353,530, 5,420,480
and other patents pending
1. Drive vehicle forward fully engaging
pushplates into attachment arms. 2. Twist connecting pin to release tension.
3. Remove electrical covers on vehicle.
4. Attach electrical connector to
corresponding connector on vehicle.
5. Repeat these steps on passenger side
of vehicle.
6. Release carrying chain and reattach it
leaving plenty of slack.
7. Push headgear upward toward vehicle
until connecting pins snap in place.
8. Pull jack lever outward and raise the
jack leg.
PLOW REMOVAL
1. Position blade in the straight mode
before removing.
2. Place control in Lower mode.
3. Push lift arm down.
4. Pull jack lever outward. ack leg will
adjust to proper height.
5. Disconnect electrical connectors and
cover with protective covers.
6. Insert release rod in lowest possible slot
on jack leg above A-frame.
7. Push down on release rod as you pull
and twist connecting pin.
8. Repeat these steps on passenger side
of vehicle.
9. Remove slack from carrying chain and
reattach.
10. Back vehicle away from plow.
21763
WARNING
CAUTION
LOWER BLADE WHEN VEHICLE IS PARKED.
REMOVE BLADE ASSEMBLY BEFORE PLACINGVEHICLE
ON HOIST.
DO NOT EXCEED GVWR OR GAWR INCLUDING BLADE
AND BALLAST.
READ OWNER'S MANUAL BEFORE OPERATING OR
SERVICING SNOWPLOW.
TRANSPORT SPEED SHOULD NOT EXCEED 45 MPH.
REDUCE SPEED UNDER ADVERSETRAVEL
CONDITIONS.
PLOWING SPEED SHOULD NOT EXCEED 10 MPH.
REMOVE SLACK FROM CARRYING CHAIN BEFORE
TRAVELING.
SEEYOUR FISHER OUTLET FOR APPLICATION
RECOMMENDATIONS.
21793
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.
BATTERY SAFETY
No. 21856 July 1997
5
T ls
TOOLS R QUIR D PRODUCT SP CIFICATIONS
V-Pl w Specificati ns
Electrical System approximate
values:
Solenoid Coil Resistance =
7 Ohms at room temperature
Solenoid Coil Amp. Draw =
1.5 Amp.
Motor Relay Coil Resistance =
16 - 17 Ohms
Motor Relay Amp. Draw =
0.7 Amp.
Maximum Motor Amp. Draw =
190 Amp.
Headlamp Relay Coil
Resistance = 106 Ohms
Headlamp Relay Amp Draw =
0.1 Amp.
Fuse Size
Harness 10 Amp.
(10AFB 3AG)
Circuit Board (2) 5 Amp.
(5AFB SMD)
Mechanical
Fastener Tor ue for :
Pump Bolts = 150160 IN-LB
Motor Bolts = 3040 IN-LB
Reservoir Bolts = 1520 IN-LB
Cartridge Tor ue = 120 IN-LB
Check Valve Tor ue =
120 IN-LB
Coil Nut Tor ue = 4860 IN-LB
Secondary Manifold Block
Assembly Bolt Tor ue =
108 IN-LB
Angle Cylinder
Piston Locknut Tor ue =
100-120 FT-LB
Gland Nut Tor ue =
150-180 FT-LB.
Hydraulic System
Relief valve settings
Pump relief valve = 1750 PSI.
2 1/2 - 2 3/4 turns CCW from
fully seated
Primary relief valve = 3000 PSI.
1 1/2 - 1 3/4 turns CCW from
fully seated
Secondary relief valve = 3500
PSI. 1 1/4 - 1 1/2 turns CCW
from fully seated
Fluid CapacityHydraulic Oil
Unit Reservoir = 1 3/4 Quarts
System Total = 2 1/2 Quarts
Hydraulic Oil
FISHER® High Performance
Fluid to -25°F (-32°C)
Solenoid Valve Spool Travel = 0.07"
for three- and four-way valves
For servicing the electrical and
hydraulic system
Re uired:
Miniature Needle Nose Pliers
Flat Screwdriver
Combination Wrenches: 3/8",
7/16" (2), 1/2", 11/16", 3/4", 7/8"
1/4" Socket or Nut driver
Test Light
Recommended :
Combination Wrenches:
1-1/16", 1-1/8"
Deep Sockets: 11/16", 7/8",
1-1/16", 1-1/8"
Tor ue Wrench ( IN-LB )
Volt/Ohm Meter
Pencil Magnet
3000 PSI Pressure Gauge
For replacing trip springs :
Removable Spring Tool
available from your Fisher
outlet
CAUTION
Do not mix different types of
hydraulic fluid. Some fluids are
not compatible and may cause
performance problems and
product damage.
No. 21856 July 1997
6
PLOW SIDE
Passenger-Side
Angle Cylinder
(Right Side)
45° Swivel
45° Street Elbow and
Straight Swivel
90° Street Elbow
and Straight Swivel
18" Hose
36" Hose
34" Hose
36" Hoses
Hydraulic
Unit
Driver-Side
Angle Cylinder
(Left Side)
Lift Cylinder
HOS ROUTING
No. 21856 July 1997
7
HYDRAULIC UNIT PARTS DIAGRAM
Motor
Primary Valve
Block
Solenoid Valve Coil
Solenoid Valve Cartridge
Relief Valve
Pilot Operated
Check Valve
Reservoir
Pump Filter
Pump
Oil Return Line
Secondary Valve Block
No. 21856 July 1997
8
SOL NOID CARTRIDG VALV ID NTIFICATION AND LOCATION
Solenoid Cartridge
Valve—S1
Solenoid Cartridge
Valve—S6
Solenoid Cartridge
Valve—S4
Solenoid Cartridge
Valve—S5
Solenoid Cartridge
Valve—S3
Solenoid Cartridge
Valve—S2
No. 21856 July 1997
9
R LI F VALV ID NTIFICATION AND LOCATION
RIGHT SECONDARY
RELIEF VALVE
RELIEF VALVE
RIGHT PRIMARY
RELIEF VALVE
LEFT SECONDARY
LEFT PRIMARY
RELIEF VALVE
PUMP RELIEF VALVE
(Passenger Side)
(Passenger Side)
(Driver Side)
(Driver Side)
No. 21856 July 1997
10
PILOT OP RAT D CH CK VALV ID NTIFICATION AND LOCATION
CHECK VALVE C
CHECK VALVE D
CHECK VALVE B
PILOT OPERATED (P/O)
PILOT OPERATED (P/O)
PILOT OPERATED (P/O)
PILOT
OPERATED (P/O)
CHECK VALVE A
Tabla de contenidos
Otros manuales de Accesorios para automóviles de Fisher Engineering
