MAINTENANCE INSTRUCTIONS (CONTINUED)
!
NOTE
Throttle cable wire is NOT to be
pulled tight (against trigger
throttle). Trigger to have small initial movement
before it pulls cable and carby throttle lever.
!
NOTE
Edger blade NOT to rotate when
engine is idling.
2. If filter torn or very dirty
replace.
3. Wash the filter in detergent
and water (Fig. 32). Rinse
the filter thoroughly and
allow it to dry.
4. Apply enough clean
SAE 30 oil to saturate the
filter when squeezed.
Squeeze the filter to spread
the oil and to remove
excess oil.
5. Reinstall the filter (Fig. 33A) air filter cover.
Note sequence of parts.
!
NOTE
CHECK TIGHTNESS OF
SCREWS at regular intervals
and retighten as necessary especially during
the first few hours of operation.
!
NOTE
If the unit is operated with dry
or dirty filter or without the air
filter and/or carburettor air filter cover, you will
void the warranty.
!
NOTE
Careless adjustments can
seriously damage the
carburettor and/or engine.
CARBURETTOR
This unit is equipped with a diaphragm-type carburettor
that has been carefully calibrated at the factory. In most
cases, no further adjustment will be required. The
condition of the air filter is important to the operation of
the edger. A dirty air filter will restrict the air flow, which
upsets the fuel-air filter mixture in the carburettor. The
resulting symptoms are often mistaken for an out-of-
adjustment carburettor. Therefore, check the condition
of the air filter before adjusting the carburettor. Refer to
Air Filter Maintenance on page 11. If the following
conditions are experienced, it may be necessary to adjust
the carburettor:
● The engine will not idle.
● The engine hesitates or stalls on acceleration.
● The loss of engine power that is not corrected by
cleaning the air filter and muffler.
● The engine operates in an erratic or fuel-rich
condition (indicated by excessive exhaust smoke
from the muffler).
ADJUSTING THE CARBURETTOR
1. The idling screw adjustment is accessible without
removing the air filter cover. See Fig. 33B. To
increase engine idle speed, turn IDLE SCREW (#1)
clockwise (Refer Fig. 33B). To decrease engine
speed, turn IDLE SCREW counter (anti) clockwise.
Throttle trigger to be in idle position.
2. If air filter is dirty then correct idle adjustment can
not be made and air filter must be cleaned. Refer to
Air Filter Maintenance and Fig 31, 32 and 33A.
!
NOTE
No mixture screws for high or
low speed settings are fitted to
this carburettor. Use clean fuel and clean air
filter. No other adjustment is required due to
fixed jets fitted.
12
The throttle cable normal play is .040” to .080” (1 to 2mm)
when measured at the carburettor side. Re-adjust with
the cable adjuster (#2) as required and re-adjust the
idle screw (#1) on carburettor as required.
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