Forest Master Model: FM6DD-MUL/FM6DDES-MUL/FM4DDE-MUL
21
Symptom
Possible Cause
The motor won’t
start (Electric)
• If you’re using an extension cable, only use a cable of
2.5mm
2
with a maximum length of 10m. Smaller or
longer cables could result in loss of power to the motor.
Check the fuse in the plug. If it has blown, change it. Do
not replace the fuse with anything other than machine /
slow blow fuses.
• Check the power cable, the plug and the switch for dam-
age (both the supplied power lead and any extension
cable being used). If there is damage, change it.
• Is the motor too hot? The motor is protected with a
thermistor if overheating. Wait for it to cool down and try
again.
• Has the motor tripped. Press the reset button under the
clear dome next to the on/off switches
• Is the hopper securing bolt tight. If the lower bolt on the
hopper is not tightened then the safety cutout will be in
operation and the motor won’t start.
Motor is humming
but mulcher isn’t
operating (electric)
• Drum is blocked. Refer to removing blockage on Page 16.
The engine lacks
power or is not
running smoothly
(Petrol).
• Check that the throttle lever is in the “RUN” position.
• Is the air filter clean? If it’s dirty change it following the
procedure in the engine manufacturer’s manual.
• Is the spark plug clean? If it’s dirty or cracked, change it.
If it’s oily, leave it out, hold a rag over the plug hole and
pull your recoil cord several times to blow out any oil in
the cylinder, then wipe off the plug and reinsert it.
• Are you using fresh, clean unleaded fuel? If it’s old,
change it. Use a fuel stabilizer if you keep petrol longer
than 30 days.
• Does your engine have the right amount of clean oil? If
it’s dirty, change it following the procedure in the engine
manufacturer’s manual.
• Check the oil level and adjust if needed.
Engine smokes
(Petrol).
• Check the oil level and adjust as needed.
• Check the air filter and clean or replace if needed.
• You may be using the wrong oil – too light for the
temperature. Refer to your engine owner’s manual for
detailed information.
• Clean the cooling fins if they are dirty.
Troubleshooting
