Pfaff-silberblau HU PW-25 T Betriebsanleitung Seite 13

Hand pallet truck PROLINE with scales
English
Malfunctions and their causes
Malfunction
Pallet truck
The pallet truck does not
lift – the pump does not
work
The pallet truck does not
lift the load, although the
pump is working perfectly
Loaded or unloaded, the
pallet truck only lifts
slowly or not at all when
the pump is actuated
Raised load is lowered of
its own accord.
Oil loss on hydraulic cyl-
inder.
The raised load is low-
ered too slowly
Weighing system
Incorrect weighing result
Scale terminal switches
off automatically
Scale terminal fails to
switch on
No indicator appears
Disposal:
After placing out of service, the pallet truck parts must be disposed of or recycled
in accordance with legal provisions.
technische Änderungen vorbehalten
Cause
Lowering lever on the handle is in the driving
position
Insufficient oil in the tank
Load too heavy – the pressure control valve
is active
Lowering valve does not close any more or
the valve face is not sealed because of dirt
Pressure control valve displaced or valve
face soiled
Hydraulic system pump is defective
Leakage in the hydraulic system
Lowering valve does not close any more or
the valve unit is not sealed because of dirt
Incorrect valve set-up.
Sealing elements are worn
Temperature too low – the hydraulic system
oil is too thick
Weighing system maladjusted
Automatic shut-down activated
Battery voltage too low
Batteries too weak
Button incorrectly actuated
Power supply too weak
Weighing system defective
design changes under reserve
F 08.01.153
Elimination
Put the lowering lever in the lifting posi-
tion
Refill with oil (while the fork is lowered)
Reduce load
Clean or replace
Adjust or clean valve
Repair or replace hydraulic system
pump!
Seal!
Clean or replace
Adjust lowering valve
Replace sealing elements
Find a warmer location
Readjust the weighing system  Zero
position
Switch on the scale terminal
Replace the battery
Replace the batteries
Press the last button to have been actu-
ated again
Replace the batteries
Repair the weighing system
changements techniques sous réserve
13 / 28