8. Maintenance
WARNING
Make sure that the engine has stopped and is cool before performing any service to the machine. Contact with moving cutting head or hot muffler may result in a personal injury.
■AIR FILTER
The air filter, if clogged, will reduce the engine performance. Check and clean the filter element in warm, soapy water as required. Dry completely before installing. If the element is broken or shrunk, replace with a new one.
MA1 | (1) Air filter |
|
|
■FUEL FILTER
When the engine runs short of fuel supply, check the fuel cap and the fuel filter for blockage.
IMPORTANT
•Note that using any spark plug other than those designated may result in the engine failing to operate properly or in the engine becoming overheated and damaged.
•To install the spark plug, first turn the plug until it is finger tight, then tighten it a quarter turn more with a socket wrench.
Tightning torque: 9.8~11.8N.m. (1.0~1.2kgm))
MA4
■GEAR CASE
• | The reduction gears are lubricated by multipurpose, |
| |
| grease every 25 hours of use or more often |
| depending on the job condition. |
• | Remove the bolt opposit to the grease nipple before |
| installing new grease to arrange for old grease to exit. |
MA2
■SPARK PLUG
(1) Fuel filter
MA5 | (1) Bolt |
| |
| (2) Grease nipple |
| (1) |
| (2) |
Starting failure and misfiring are often caused by a fouled spark plug. Clean the spark plug and check that the plug gap is in the correct range. For a replacement plug, use the correct type specified by ZENOAH.
REPLACEMENT PLUG IS A NGK BPMR7A.
MA3
0.6~0.7mm
■INTAKE AIR COOLING VENT
WARNING
•Never touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns.
•When checking the machine to make sure that it is okay before using it, check the area around the muffler and remove any wood chips or leaves which have attached themselves to the brushcutter. Failing to do so could cause the muffler to become overheated and that in turn
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