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LF45/55 series Cab suspension
DIAGNOSTICS
1-1
1. CAB SUSPENSION
1.1 FAULT-FINDING TABLE, CAB TILTING MECHANISM
COMPLAINT: TILTING CYLINDER FAILS TO RESPOND
Possible cause Remedy
Damaged or broken pipe. Replace pipe or connection.
Pump reservoir empty. Top up reservoir and check for leakage.
Worn or damaged cylinder seal. Replace the cylinder or seal.
COMPLAINT: PUMP ROD REBOUNDS
Possible cause Remedy
Leaking non-return valve. Disassemble the two-way valve of the pump.
Clean and degrease the valve components.
Replace all seals and assemble the two-way
valve.
COMPLAINT: PUMP ONLY FUNCTIONS IN THE LAST PART OF THE STROKE
Possible cause Remedy
Low oil level in oil reservoir. Topupoilreservoir.
Leaking inlet valve (ball). Remove the two-way valve and check the inlet
valve. Clean or replace it.
Polluted inlet strainer . Clean the reservoir and strainer .
COMPLAINT: PUMP FAILS TO BUILD UP PRESSURE
Possible cause Remedy
Reservoir level too low. Topupthereservoir.
Leaking inlet valve (ball). Remove the two-way valve and check the inlet
valve. Clean or replace it.
Worn or damaged O-rings on the two-way
valve.
Remove the two-way valve and replace all seals
and O-rings.
Pressure-relief valve incorrectly set. Check the pressure relief valve and adjust, if
necessary.
1
ǹ 0210
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