Operation Manual

85MS 241 C
8.5.6 Cut-off speed not
reached
– Check air filter and spark arrestor screen
(if present) in muffler, clean or replace if
necessary, b 13.1, b 6.1
– Check saw chain tension and chain
lubrication
–Calibrate control unit,
b 8.1
Maximum speed
greater than 13000
rpm?
Maximum speed less than
13000 rpm
– Look for a fault in the fuel
path, check engine for
leaks,
b 13.11, b 6.2
no
Troubleshooting
completed
yes
– Check plug connection on
control unit, b 8.2.3
Connection
and firm seat of the
plug
OK?
– Check plug, replace
insulating housing or
wiring harness if
necessary, b 7.3
no
yes
– Check start detection,
wiring harness and plug
connections, b 8.2.5
b 8.2.3
– Replace switchgear,
b 8.4
yes
no
Are target values
attained?, b 8.2.5