Troubleshooting - Pfaff SILVERLINE HRH S 2,0 L Translated Operating Instructions

Service Jack SILVERLINE HRH S
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 cover
 Open the rubber stopper
 Drain off the old hydraulic fluid
 Fill with fresh hydraulic fluid
 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!
Oil quantity
Dispose of used hydraulic oil in accordance with relevant waste-treatment regulations

Troubleshooting

If problems occur, do not lift the load any further.
Fault
Pump does not deliver pressure
Piston fails to move despite
pumping action
Piston lowers independently of
pump action
The lifting arm does not fully
extend
Jack losing oil
Eventual scrapping
When the jack is 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
HRH S 2,0 K HRH S 2,5 K
040008530 040008531 040008532 040008533 040008534
0,115 0,165
[l]
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
Release valve fails to close, or valve-seat seal is
contaminated with oil
Too little oil in the hydraulic system
Worn seals
design changes under reserve
1)
cover
HRH S 2,0 L HRH S 3,0 L
0,30 0,27 0,35
changements techniques sous réserve
F 06.01.175
drain valve
HRH S 5,0 L
Remedy
Shut release valve
Reduce load
Carry out required maintenance
Clean or replace
Clean or replace
Check the oil level and top it up if
necessary
Fit new seals
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