Operating Failures And Their Causes - Pfaff EGU PS 15 Traduction Du Manuel D'utilisation D'origine

Electric pallet truck EGU PS 15
English
8

Operating Failures and Their Causes

8.1 Electric System
Failure Cause
defective fuse
battery discharged
loose cable lug
Hydraulic pump loose cable connecting plug
does not start
abraded bushes in the motor or weakened springs of the
brushes
failure in the contactor
defective wiring to the contactor or motor
silted battery
Too early battery
sulphation or other failure in the battery.
discharge
accidental earth contact in the electric system or battery
8.2 Brakes
Failure
Tie bar brake shows no or not sufficient
brake effect
8.3 Hydraulic System
Failure
Pallet truck does not lift
the load (pump aggre-
gate operates)
Pallet truck lifts slowly
or not at all with running
pump motor, with or
without load.
The motor pump does
not start
Lifted load is no longer
suspended
Loss of oil on the cylin-
der
Lifted load lowers too
slowly
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
Brake is incorrectly adjusted.
Brake discs are worn out
Cause
load is too heavy, overload valve is actuated
lowering valve does not close or valve face is leaky
due to soiling
pressure relieve valve not correctly adjusted or valve
face is soiled
hydraulic pump is defective
battery discharged or defect
battery plug is not plugged in
loose connecting cable
blown fuse
defective starter relay
abraded brushes in the pump motor or weakened
pressure springs
defective pump motor
leakage in the hydraulic system
not enough oil in tank
lowering valve does not close or valve face is leaky
due to soiling
pressure relief valve (pump) is leaky (pump turns
slowly backwards.)
sealing elements are worn out
temperature is too low - hydraulic oil is too viscous
soiled filter for return flow (lowering valve)
design changes under reserve
F 08.01.161
Remedy
Replace the fuse
charge the battery
reconnect and tighten
reconnect and tighten
replace bushes with springs
Check and replace
repair
replace battery
replace battery
repair or replace battery
Remedy
Have the brake adjusted by a com-
petent person )
Remedy
reduce the load
clean or replace
adjust or clean valve
repair or replace hydraulic pump
charge or replace the battery
plug in the battery plug
fix connecting cable
replace the fuses
replace starter relay
replace brushes with springs
replace motor or aggregate
seal accordingly
add oil
clean or replace
clean or replace the valve
Replace sealing elements
Use original spare parts only
Warm up
Clean
changements techniques sous réserve
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