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WARNING: Read and understand the safety
chapter before you clean, repair or do
maintenance on the product.
To check the air cleaner
• After every 25 hours of operation, please remove
the air cleaner cover and inspect the air cleaner. If
it is too dirty, wash it carefully in warm water
containing a neutral detergent, and put it back to
its original position after drying it thoroughly.
• If the air cleaner is distorted or damaged, please
replace it with a new one.
• If the air cleaner is blocked, the efficiency of the
engine will be reduced. In addition, the engine
interior will suffer abnormal wear if it is operated
without filter or if continually operated with a
distorted or damaged filter.
To check the fuel filter
• After every 25 hours of operation, empty the fuel
tank, detach the fuel filter from the tank, and
remove all dirt. If the filter is too clogged, please
replace it with a new one.
• If the fuel filter is clogged, the engine speed may
be limited or speed fluctuations may occur.
• If the engine is operated without a fuel filter, dirt will
accumulate in the carburetor and cause it to
malfunction
To check the spark plug
• Do not touch the spark plug with your bare hands
immediately after operation, as there is the risk of
burns due to high temperature.
• After every 25 hours of operation, detach the spark
plug and remove dirt from the electrodes with a
wire brush or similar.
• The correct electrode gap is 0.6 to 0.7mm.
0.6~0.7mm
MAINTENANCE
• When replacing plugs, please use designated
items.
• If too much fuel is absorbed or poor quality oil is
used, the spark plug electrodes become dirty,
making the engine harder to start.
• 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.
TIGHTENING TORQUE: 14.7 to 21.6 N.m.
To check the spray nozzle
• A clogged spray nozzle can cause the spray
To correct the problem, immediately clean the spray
tip by following these instructions:
1. Stop engine & remove the unit from the
operators back.
2. Disconnect the spray rod from the spray hose
assembly.
3. To remove the nozzle cap, turn in anticlockwise
direction.
4. Inspect and clean the spray tip and metal strainer
for 3-nozzle spray rod from any foreign material
clogging or restricting the spray nozzle. Replace if
damaged.
5. Reinstall the nozzle cap and the spray rod with
the spray hose assembly tightly (hand tighten) .
To check the pump oil level
• Oil level should be checked prior to each use.
1. Make sure the sprayer is on an even surface.
2. Verify the oil is showing as 1/3-1/2's full (approx.
100ml) in the oil glass window.
pressure and flowrate to drop. All excessive
pressure will go back to the sprayer tank.
(150 to 220 kgf-cm)
9
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