Hiniker 702 Operator's Manual page 12

10 Trouble Shooting
PROBLEM
7. Angling cylinders relieve
too easily or too diffi cultly
while plowing
8. Oil leaks from cylinder(s)
9. Battery goes dead with
power to the control box on
and joystick in neutral posi-
tion.
10. Battery goes dead with
power to the control box
off .
11. Plow lights are dim
12. Plow does not clean-up
snow from low areas
13. In extremely cold tempera-
tures, the oil in the hydrau-
lic system is thickened,
causing slow functioning of
the plow
14. Pump chatters when rais-
ing plow
15. Oil running out of cap on
hydraulic reservoir
16. Vehicle overheats with the
plow on
17. Plow lights do not operate
with plow attached
18. Truck headlights do not op-
erate properly with plow re-
moved
POSSIBLE CAUSE
A. Relief pressure set too low
or too high
A. Loose packing
B. Defective cylinder
A. Short in wiring
B. Defective joystick control
box
A. Short in wiring
A. Bad connection(s)
B. Lights not properly ground-
ed
A. Joystick controller in neu-
tral
A. Cold temperatures
A. Hydraulic oil low
A. Plowing on steeply inclined
terrain
B. Too much oil
A. Vehicle coolant level low
B. Ice and snow buildup in
grill
C. Insuffi cient airfl ow to en-
gine compartment
A. Light switch on joystick
control box in "truck" posi-
tion
B. Defective relay
C. Faulty light switch on joy-
stick control box
D. Blown fuse on vehicle ac-
cessory feed
A. Light switch on joystick
control box in "plow" posi-
tion
B. Defective relay
REMEDY
A. Have relief pressure ad-
justed by Hiniker snowplow
dealer
A. Tighten packing 1/8 turn
B. Repack or replace cylinder
A. Locate and repair
B. Replace control box
A. Locate and repair
A. Repair connection
B. Properly ground
A. Controller should be in the
down position (fl oat)
A. As the system warms, the
oil will thin out and function
normally.
B. Select Hiniker Cold Flow
Hydraulic Oil for plowing
in extremely cold tempera-
tures.
A. Add hydraulic oil until chat-
tering stops. Do not over-
fi ll.
A. Avoid excessive inclines or
change direction of plow-
ing
B. Remove excess oil
A. Add coolant
B. Remove ice and snow
C. Transport plow at lower
speeds
A. Move switch to "plow" posi-
tion
B. Replace relay
C. Replace joystick
box
D. Replace fuse
A. Move switch to "truck" po-
sition
B. Replace relay
control