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21
11.2- lubricating the gear housing with grease
The gear housing has a greasing port. Remove the greasing ports screw and feed grease into port.
Grease the port after 20 hours of operation after the greasing operation. Then grease after every 100
hours of operation. Fig. 29
11.3- Checking gear housing mounting screws
Loose gear housing fixing screws are very dangerous even though they have covers to prevent them
from coming off. Be sure to check them before operating the trimmer. Tighten the screws securely with
the Allen wrench provided with the trimmer.
11.4- Spark plug
The spark plugs have a standard electrode-to-electrode distance of 0.6 to 0.7mm Fig. 30
The spark plug electrodes are dry and drown under optimum operating conditions. Clean as necessary.
Use spark plugs designated for the engine.
11.5- Fuel strainer cleaning
The fuel hose has a felt strainer at its end(in the fuel tank) to prevent foreign matter such as sand from
entering the carburetor. Clean the strainer as required because the pump cannot suck up fuel if the
strainer is clogged, which would cause the engine to stop. Replace the felt strainer if it is clogged or
damaged.
11.6- Adjusting throttle cable
Adjust the throttle cable length with the adjusting nut. If the Nylon cutting head rotates even after you
have released your hand from the throttle trigger to idle the engine, adjust the throttle cable length.
Loosen the lock nut and turn the adjusting nut to adjust the cable length. Turn the adjusting nut clock-
wise to lengthen the throttle and counterclockwise To shorten it. Tighten the lock nut after adjustment.
11.7- Adjusting half throttle
The trimmer has a built-in throttle-locking mechanism to keep the throttle at half Throttle for easy en-
gine start up. adjust the half-throttle by changing the throttle length with the adjusting nut.
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