Nilfisk-Advance Advance Retriever 2060, Service Manual

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FORM NO. 56043051 / Retriever
™
2060 - 53
HYDRAULIC SYSTEM
TROUBLESHOOTING CHART
Symptom Possible cause
1 All hydraulic functions sluggish Engine not operating in high idle or
engine idle too slow.
2 Wheel drive in one direction only Inspect propulsion pump relief valves for
damaged or broken springs, valve held off
seat, damaged valve or excessive system
pressure.
3 Main broom, side broom and Check if front gear circuit is exceeding
impeller do not operate 2500PSI. Check relief valve in relief block.
4 No wheel drive in either direction Check that bypass valve is in correct
position. Check operation of foot pedal
to propulsion pump arm.
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TROUBLESHOOTING GUIDE (CONTINUED)