EWM KM 120-S Notice D'utilisation page 75

The following overview lists the possible causes of faults and their remedies.
Fault
Knife does not move
Material is not cut cleanly
Knife drive does not pull
through
Defective seal on hydraulic
motor
Extreme oscillation or vibration
of the hedge trimmer
V-200716
Cause
Incorrect connections
Pump not switched on
Foreign objects in cutting
system
Defective guards, sections or
knife head
Defective hydraulic motor
Defective knife drive
Worn guards, sections or
knives and wear plates
Incorrect speed of knife drive
Incorrect oil quantity or
pressure
No oil leakage pipe on
hydraulic motor
Disruptions
Excessive speed at hydraulic
motor or knife drive
Operating manual
Remedy
Check connections, tighten
threaded connections
Switch on pump
Remove foreign objects
Replace defective parts
Consult an authorized repair
shop; replace defective parts
Replace defective parts
Consult an authorized repair
shop
Consult an authorized repair
shop
Consult an authorized repair
shop
Replace defective parts
Attach oil leakage pipe, if
necessary
Check pressure-relief valve
Consult an authorized repair
shop
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