Trouble Shooting 9
GENERAL
1.
Check to see that the motor is wired cor-
rectly with tight connections, for the proper
voltage.
2.
Check reservoir oil level.
PROBLEM
1.
Plow does not attach to ve-
hicle
2.
Pump motor does not run
3.
Pump runs with joystick in
neutral position
4.
Plow will not lower
5.
Plow will not raise or raises
slowly, motor runs
6.
Plow does not remain
raised
with
joystick
in
“neutral” position
REMEDY
A. Fully collapse lift cylinder
and rotate stop plate up to
brace the lift frame before
removing plow from truck
B. Slowly drive into receivers
and set parking brake
C. Lower receivers by adjust-
ing park stand.
A. Replace solenoid
B. Replace brushes or motor
C. Charge or replace battery
D. Clean and tighten connec-
tions
E. Replace control box
F.
Replace fuse
A. Replace solenoid
B. Replace control box
C. Locate and repair
A. Correct wiring
B. Replace control box
C. Replace valve or coil
A. Charge or replace battery
B. Add oil (do not overfill)
C. Tighten or redo connection
D. Replace valve
A. Clean valve, or replace
B. Clean valve, or replace
C. Repack or replace cylinder
D. Replace control box
POSSIBLE CAUSE
A. Receivers are tipped for-
ward
B. Prongs recoil out of receiv-
ers when attaching
C. Park stand pinned too low
A. Defective solenoid
B. Defective pump motor
C. Weak or defective battery
D. Bad electrical connections
E. Defective joystick control
box
F.
Blown 10A fuse supplying
power to control box
A. Defective solenoid
B. Defective joystick control
box
C. Wiring short
A. Reversed wiring on valve
block
B. Defective joystick control
box
C. Defective lift return valve
or coil
A. Weak or defective truck
battery
B. Oil level low
C. Hydraulic connection leak
D. Lift valve not opening prop-
erly
A. Leakage through pump
check valve
B. Leakage through solenoid
lowering valve
C. Internal leakage in cylinder
D. Defective joystick control
box.
TROUBLE SHOOTING
3.
Check that wiring harness relay connec-
tions are wired correctly
4.
Check for external leakage at cylinders,
hoses and power unit.
Содержание 9850
Страница 2: ......
Страница 28: ...26 Wiring Harness ...
Страница 29: ...Wiring Harness 27 DWG NO 5857 ...
Страница 30: ...28 V Plow Power Unit DWG NO 6457A ...
Страница 31: ...Power Unit Hydraulic Circuit Diagram 29 DWG NO 6459 ...