6.8.
Maintenance table.
System/Component
Procedure
Before
each
use
Every
25
hours
Every
50
hours
Every
100
hours
Note
Engine
Fuel leaks or spillages
Clean up
○
Fuel tank, Air filter &
Fuel filter
Inspect/Clean
○
○
Replace as
required
Idle adjusting screw
See adjust idling speed
○
Replace
carburetor
as required
Spark plug
Clean and readjust spark
plug gap
○
Cylinder fins, intake
air cooling vent
Clean
○
Muffler, spark
arrester & cylinder
exhaust port
Clean
○
SHAFT
Throttle lever &
ignition switch
Check operation
○
Cutting parts
Replace broken blade or
strimmer head replace as
required
○
Cutting guard
Make sure it is fitted at all
times
○
Gear case
Grease
○
Screws, nuts and bolts
Tighten and/or replace as
required
○
○
Not adjust
screws
7. TROUBLESHOOTING
Issue
Check
Probable cause
Corrective action
Engine fails to start
Fuel quality
Incorrect fuel
Drain and fill with correct
fuel
Fuel filter
Filter blocked
Clean
Carburetor adjustment
screw
Out of normal range
Adjust into normal range
No spark
Fouled or wet spark plug
Plug gap incorrect
Clean and dry
Adjust gap to 0.6mm to
0.77mm
Spark plug
Disconnected
Reconnect
Engine starts but does not
continue to run or hard to
restart
Fuel
Incorrect or stale fuel
Drain and fill with correct
fuel
Carburetor adjustment
screw
Out of normal range
Adjust into normal range
Exhaust
Carbon build up
Clean
Air filter
Clogged with dust
Wash dry and or replace
Cylinder fin fan cover
Clogged with dust
Clean
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