8. Maintenance
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■
OIL LEVEL
•
Check oil level of the gear box every 50 hours
of use and change with new oil as necessary.
(SAE #80-90).
RECOMMENDED CHANGE INTERVAL
1st: After 50 hours of use
2nd and on: Every 100 hours of use.
9.
Storage
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WARNING
• Aged fuel is one of major causes of engine starting failure.
1.
Drain a fuel tank and push the primer bulb until it becomes empty of fuel.
2. Remove the spark plug and drop a spoonful of 2-cycle oil into the cylinder. Crank the engine several
times and replace the plug.
3. Brush off dirt from the drill surface and apply rust protective oil.
4. Store the machine in a dry, dust-free place.
10.
Troubleshooting guide
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Case 1. Starting failure
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CHECK
PROBABLE CAUSES ACTION
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fuel tank
➞
incorrect fuel
➞
drain it and use correct fuel
fuel filter
➞
fuel filter is clogged
➞
clean
carburetor adjustment screw
➞
out of normal range
➞
adjust to normal range
sparking (no spark)
➞
spark plug is fouled/wet
➞
clean/dry
➞
plug gap is incorrect
➞
correct (GAP: 0.6~0.7mm)
spark plug
➞
disconnected
➞
re-tighten
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Case 2. Engine starts but does not keep running/Hard re-starting.
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CHECK PROBABLE CAUSES ACTION
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fuel tank
➞
incorrect fuel or staled fuel
➞
drain it and with correct fuel
carburetor adjustment screw
➞
out of normal range
➞
adjust to normal range
muffler,cylinder (exhaust port)
➞
carbon is built-up
➞
wipe away
air cleaner
➞
clogged with dust
➞
air blow or wash
cylinder fin, fan cover
➞
clogged with dust
➞
clean
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When your unit seems to need further service, please consult with service shop in your area.
