Troubleshooting Guide - MAAX Grondfress 21039 Manual De Usuario

How to prepare your tiller/cultivator restarting
In the spring , when you take your tiller / cultivator out of storage, remove the spark plug. Pull the
starter cord there or four times to clean oil from the combustion chamber. Wipe oil from the spark
plug, Place the spark plug back into the cylinder. Reconnect the spark plug wire back on the spark
plug. Then follow the steps to refuel and restart your tiller /cultivator.
Again, check the carburetor.
If your tiller /cultivator won't restart in sprin – or if it lacks its usual power the carburetor may need
attention.
Check the spark plug too.
If your tiller / cultivator won't start, or if it lacks full power, the spark plug may be at fault. Check to
see if the plug is fouled with oily black deposits. Clean or replace it if it is. Also, check whether the
center electrode is rounded at the end. Or if the ground electrode is worn. If either is the case.
You should replace it with a champion L8RTC Spark plug. Use a 19 mm spark plug wrench to install
it. Adjust the plug gap to 0.6~0.7 mm to install the spark plug first turn the plug until it is finger tight,
then the tighten it a quarter turn more with a socket wrench.
IMPORTANT NOTE
To avoid possible damage to the threads, do not try to remove the plug from a hot aluminum
cylinder head.

TROUBLESHOOTING GUIDE

1. Starting failure
CHECK
FUEL TANK
FUEL FILTER
CARBURETOR
ADJUSTMENT
SCREW
SPARKING
(NO SPARK)
SPARK PLUG
2. Engine starts but does not keep running / hard re-starting.
CHECK
FUEL TANK
CARBURETOR
ADJUSTMENT
SCREW
MUFFLER,
CYLINDER
(EXHAUST PORT)
AIR CLEANER
CYLINDER FIN,
FAN COVER
66
PROBABLE CAUSE
Incorrect fuel
Fuel filter is clogged
Out of normal range
Spark plug is fouled/wet
Plug gap is incorrect
Disconnected
PROBABLE CAUSE
Incorrect fuel
Out of normal range
Carbon is built-up
Clogged with dust
Clogged with dust
ACTION
Drain it and fill with correct fuel
Clean
Adjust to normal range
Clean / dry correct (GAP: 0.6~0.7 Mm)
Retighten
ACTION
Drain it and fill with correct fuel
Adjust to normal range
Wipe away
Clogged with dust
Clean