Troubleshooting - WilTec 61974 Operation Manual

Troubleshooting

Problem Possible Causes
Jack will not lift
load
Jack bleeds off
after lift
Jack will not lower
after unloading
Poor lift perform-
ance
Will not lift to full
extension
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
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http://www.teichtip.de
Release valve not closed

tightly
Overload condition

Air supply inadequate

Release valve not closed

tightly
Overload condition

Hydraulic unit malfunction

Reservoir overfilled

Linkages binding

Fluid level low

Air trapped in system

Fluid level low

Item 61974, 61975
Solution
Ensure release valve is tightly

closed
Remedy overload condition

Ensure adequate air supply

Ensure release valve is tightly

closed
Remedy overload condition

Contact manufacturer or service

partner
Drain fluid to proper level

Clean and lubricate moving parts

Ensure proper fluid level

With ram fully retracted, remove

oil filler plug to let pressurized air
escape; reinstall oil filler plug
Ensure proper fluid level

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