151
appendix 2:
General Troubleshooting
PROBLEM
CAUSE AND SOLUTION
lift arm
Lift arm won’t raise.
•
Hydraulics not engaged. Engage transmission
PTO to activate hydraulic system.
•
POWER switch on joystick panel is not on. Turn
on POWER switch.
• Hydraulic fluid low. Add fluid to the hydraulic
fluid reservoir.
• Hose or fitting broken or leaking. Tighten loose
fitting or replace broken hose or fitting.
Lift arm won’t lower.
•
Locking arm engaged. Release locking arm.
•
Hydraulics not engaged. Make sure transmission
PTO is engaged to activate hydraulic system.
•
POWER switch on joystick panel is not on. Turn
on POWER switch.
Lift arm and cutter will not move right/left.
•
Hydraulics not engaged. Engage transmission
PTO to activate hydraulic system.
•
POWER switch on joystick panel is not ON. Turn
on POWER switch.
• Hydraulic fluid low. Add fluid to the hydraulic
fluid reservoir.
• Hose or fitting broken or leaking. Tighten loose
fitting or replace broken hose or fitting.
• Cutter is down. Raise cutter off pavement.
water System
Low water pressure.
•
Hydraulics not engaged. Engage transmission
PTO to activate hydraulic system.
•
Truck engine speed is too low and hydraulic
system is not turning the charge pump at proper
RPM. Raise engine speed to operating RPM.
•
Charge water pump is not activated or supply
valve is closed. Open supply valve or activate
charge water pump.
•
Water tank is empty. Fill tank with water.
•
Clogged impeller on pump. Disassemble pump
and clean or replace impeller.
•
There is an air leak in the suction hose. Find
and repair leak.
•
Debris in water hose from tank. Flush or replace
intake water hose.
Содержание RH7500
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