Troubleshooting - Pfaff PROLINE Betriebsanleitung

Hydraulic Car Jack PROLINE
English
Inspection and servicing guide
Safety Instruction
Always ensure that hydraulic jack pressure is fully released BEFORE carrying out inspection or
maintenance work.
Inspection intervals
Daily and/or before
each jacking operation
Twice a year
Yearly
Every two years
1)
e.g. by Pfaff-silberblau Customer Service
Observe the specified service life of each component. Replace worn parts
immediately.
Topping up/changing the oil
Open the rubber stopper
Drain off the old hydraulic fluid
Fill with fresh hydraulic fluid
See Technical Specifications (page 7) for details of filling capacities
Close rubber stopper
Recommended hydraulic oil:
Hydraulic oil HL 15 (HL 22) DIN 51 524 (ISO VG 15-22)
Keep oil at required level. Clean area around filler-hole BEFORE removing stopper
Dispose of used hydraulic oil in accordance with relevant waste-treatment regula-
tions

Troubleshooting

Fault
Pump does not deliver
pressure
Piston fails to move
despite pumping action
Piston lowers inde-
pendently of pump ac-
tion
Jack losing oil
Eventual scrapping
When the jack is eventually taken out of service, all components should be recycled or dis-
posed of in accordance with the relevant legislation in force at the time of scrapping.
technische Änderungen vorbehalten
Maintenance and inspection tasks
Visual check of head section
Check jack for correct functioning
Check for leaks
Cleaning and degreasing of moving parts
Cleaning and lubrication of moving parts
If the jack is used only occasionally, pump the lifting piston up to its full extent and then
release once more.
Check oil level
Check all parts of the jack for damage and replace any component that shows signs
of wear
Check identification plate for legibility
Have check carried out by qualified service technician
Carry out oil change
Cause
Screw-action release valve open
Load excessive, pressure limiting valve in operation
Leak in hydraulic system
Non-return valve fails to close, or valve seat is soiled Clean or replace
Release valve fails to close, or valve-seat seal is
contaminated with oil
Worn seals
design changes under reserve
F 06.01.073
1)
Remedy
Shut release valve
Reduce load
Carry out required maintenance
Clean or replace
Fit new seals
changements techniques sous réserve
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