paladin JRB SMART-LOC, Руководство оператора

Страница: 28 / 31

28
OM90A
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSES POSSIBLE SOLUTION
1. Coupler cylinder
does not extend
Hoses or valve are plugged
by dirt.
Incorrect pressure
Locking mechanism is
binding.
Remove hoses and valve and clean. Blow air through
valve to check operation.
Check pressure in coupler cylinder extend “EXT” line.
High Pressure System - full system pressure
Low Pressure System - 3250 PSI
Check coupler cylinder check valve o-rings for damage.
Make sure hoses are not pinched or fittings and/or coupler
cylinder tubes are not damaged.
Remove debris from coupler.
Lubricate coupler grease points.
2. Coupler cylinder
does not retract
Lack of hydraulic pressure to
cylinder or valve.
Hoses or valve are plugged
by dirt.
Incorrect pressure
Loss of electrical current to
solenoid valve.
Low or not enough voltage to
coils.
Locking mechanism is
binding.
Secondary Lock Arm is
engaged
The bucket cylinder is not being taken over relief.
Remove hoses and valve and clean. Blow air through
valve to check operation.
Check pressure in coupler cylinder retract “RET” line.
High Pressure System - full system pressure
Low Pressure System - 3250 PSI
Check electrical connections and check for primary ground.
Check voltage, 12 volts to 12 volt coils and 24 volts to 24
volt coils.
Remove debris from coupler.
Lubricate coupler grease points.
Make sure coupler is rotated to full curl position prior to at-
tempting to unlock attachment.
3. Secondary Lock Arm
does not disengage at
full curl
Excessive wear on the lock
arm.
Replace Lock Arm.