Service Schedule; Handover Confirmation; Service Confirmation - Stihl GHE 420 Manuel D'utilisation

18. Troubleshooting
If necessary, contact a specialist
dealer; STIHL recommends STIHL
specialist dealers.
Fault:
Motor does not start
Possible cause:
– Motor overload protection activated
– No mains voltage
– Electric cable, plug, plug connector or
switch defective
– Fuse in UK plug damaged (only applies
to machines for UK)
– Feed chute ATO 400 not properly
closed – safety cut-off switch actuated
(safety interlock)
– Blade disc blocked
Remedy:
– Allow machine to cool down (
– Check power cable and fuse
( 10.1)
– Check cable, plugs, connector and
switch and replace if necessary (by
electrician) ( 10.1)
– Replace fuse ( 10.1)
– Close feed chute ATO 400 properly and
fasten (tighten On- / Off switch) (
– Remove feed chute and remove
shredder deposits from the housing
(Important: disconnect the power cable)
( 11.2)
Fault:
Reduced shredding performance
Possible cause:
– Blunt blades
– Incorrectly ground blades
– Power cable too long
0478 201 9916 A - EN
– Bent blade disc
– GHE 450: Incorrect rotational direction
of blade disc
Remedy:
– Reverse or sharpen blades
( 11.8)
– Sharpen blades correctly
– Use shorter power cable (
– Check blade disc visually
– GHE 450: Change rotational direction
of blade disc (
Fault:
Shredding material is not drawn in
Possible cause:
– GHE 450: Incorrect rotational direction
of blade disc
– Blunt or incorrectly ground blades
– Gap between the two blades (hard
material blade disc)
– Blade cover not removed
Remedy:
8.7)
– GHE 450: Change rotational direction
of blade disc (
– Regrind blade and ensure sharpening
angle is exactly correct
– Install blades onto the hard material
blade disc without a gap (
– Remove blade cover (
7.6)

19. Service schedule

( 11.7),

19.1 Handover confirmation

( 11.8)
10.1)
10.7), ( 10.8)
10.7), ( 10.8)
( 11.8)

19.2 Service confirmation

Please hand this instruction manual
11.7)
to your STIHL specialist dealer in
7.4)
the case of maintenance operations.
He will confirm the service operations
performed in the pre-printed boxes.
Service performed on
Next service date
28
63