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S O N I C - E Q U I P M E N T. C O M
Trouble
Cause
Jack does not lift
Release valve is open
Turn the valve clockwise tightly
Low/no hydraulic oil in reservoir
Refill the jack to the correct level of oil
Air locked system
Bleed the system
Load is above capacity of jack
Use correct equipment
Jack lifts only partially
Too much or not enough hydraulic oil Check hydraulic oil level
Jack advances slowly
Pump not working correctly
Rework pump
Leaking seals
Replace seals
Jack lifts load,
Release valve not working correctly
Inspect valves, replace it if necessary
but doesn’t hold
Jack leaks hydraulic oil
Worn or damaged seals
Replace seals
Jack will not retract
Release valve is closed
Open the discharge valve by turning
the sleeve counter clockwise
Jack retracts slowly
Return spring is damaged
Replace return spring
Link section is binding
Lubricate link sections
Description
Ref.
Cap.
Max. Min.
A
B
C
D
(mm) (mm) (mm) (mm) (mm) (mm)
48034 3000KG 505
75
Ø108
150
1275
678
48034 Handleiding.indd 6
48034 Handleiding.indd 6
23-07-2020 16:48
23-07-2020 16:48