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6. Air filter
• You can divide the filter into two parts. Divide it and blow the dirt out carefully once in
a while (from the inside out) (fig. 17).
7. Front and rear vibration dampers
• In case you find cracks on rubber parts, springs or handles and their attachment, an
immediate replacement is required.
TROUBLESHOOTING
CAUTION! A
You cannot rectify disorders that require more intervention yourself.
If you‘re unable to rectify the fault using the corrective measures described below,
contact a specialist garage, preferably an authorised service centre.
Improper handling can cause damage or serious injuries.
Problem Possible Causes Failure Removal
Engine does not start
Incorrect start-up sequence
Perform the machine start
according to these instructions
Incorrectly set carburettor mixture
Adjust the carburettor (preferably in
a workshop)
Dirty spark plug
Clean the spark plug, check
electrode distance or replace
Clogged fuel filter Replace or clean the fuel filter
Engine starts but
the machine does not run at
full power
Dirty air filter Clean or replace the air filter
Improper mixture
Adjust the carburettor (preferably in
a workshop)
Incorrectly set carburettor
Engine runs irregularly, stops
Incorrectly set carburettor mixture
Adjust the carburettor (preferably in
a workshop)
Dirty or defective spark plug
Clean the spark plug, check
electrode distance or replace
Dry chain
There is no oil in the tank Add the oil
Lubrication hole is clogged Clean the lubrication hole
Low performance when
loaded
Incorrectly set carburettor
Adjust the carburettor (preferably in
a workshop)
Excessive exhaust gas,
smoke
Incorrectly set carburettor
Adjust the carburettor (preferably in
a workshop)
Incorrect fuel mixture – too much oil Use mixing ratio of 40:1
HECHT_925_R_MANUAL_2022_EN.indd 36HECHT_925_R_MANUAL_2022_EN.indd 36 28.03.2023 11:58:0428.03.2023 11:58:04
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