Atom Gasoline Powered Tiller, User Manual

Page: 9 / 16

FIG 25A
Top view
looking down
on carburettor.
9
!
NOTE
CLEAN AND RE-OIL THE AIR
FILTER EVERY 5 HOURS OF USE.
AIR FILTER MAINTENANCE
The air filter is one of the most important areas to maintain.
If it is not maintained, you will void the warranty. Before
cleaning, make sure the unit is turned off.
1. If filter torn or very dirty
replace.
2. Wash the filter in detergent
and water (Fig 24A). Rinse
the filter thoroughly and
allow it to dry.
3. Apply enough clean engine
oil to saturate the filter when
squeezed. Squeeze the
filter to spread the oil and to
remove excess oil.
!
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.
FUEL FILTER MAINTENANCE
A dirty or blocked fuel filter will stop fuel flow. To clear, use
a piece of hooked wire to “fish” filter out of tank. Clear with
compressed air or replace filter.
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 and fuel filter is important to the operation of the
tiller. A dirty air filter will restrict the air flow, which upsets
the fuel-air filter mixture in the carburettor and a dirty fuel
filter will restrict flow of fuel resulting in symptoms indicating
that carburettor may need cleaning. Therefore, check the
condition of the air filter and fuel filter before adjusting 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, fuel filter and muffler then the
carburettor should be dismantled and cleaned. Refer
to parts breakdown page 14.
!
NOTE
Tiller tines NOT to rotate when
engine is idling.
FIG 24A
ADJUSTING IDLE SPEED
1. The idling screw adjustment is accessible without
removing the air filter cover. See Fig 25A. To increase
engine idle speed, turn IDLE SCREW (2) clockwise.
To decrease engine speed, turn IDLE SCREW counter
clockwise (anti-clockwise). Throttle trigger to be in idle
position.
NOTE : If the motor has been removed. On refitting it is
to be pushed fully into the tiller casing and three screws
“A” Fig 28(p.10) are screwed up tight. Misalignment due
to incorrect fitting can cause clutch to engage at idle. To
correct, loosen screws re-straighten motor and re-screw up
equally three screws.
CLEANING THE MUFFLER
After a long period of use the exhaust can block and must
be cleaned. Remove engine cover and muffler and clean
out all passages, Fig 25B. Blow loose material out of muffler.
Ensure no grit enters cylinder exhaust opening.
LUBRICATION OF GEARS
There is usually sufficient lubricant to last at least 4 years or
100 hours of use before topping it up. The lubricant in the
gear case should be added according to use. Remove tines
on left side (only) and clean casing around fill and bleed
screws. Remove two screws marked FILL and BLEED.
Inject grease into FILL screw hole and allow lubricant to
eject from BLEED hole indicating gear box is full (Fig 26).
Refit and tighten BLEED screw and squeeze in 3 or 4 more
lots of lubricant. Refit FILL screw and tighten.
NOTE : Special blended lubricants are used in the gear box.
Only use Penrite brand semi fluid tiller grease, available in
squeeze bottles P/N # 63220. Other grease or oils could
lead to early gear failure or overheating of gears and casing.
If gear case shows leakage, tighten all screws or dismantle
and replace ‘O’ ring see page 11. A gasket sealant can also
be used to assist sealing.
FIG 24B
FIG 25B
FIG 26
MAINTENANCE INSTRUCTIONS
(CONTINUED)
Cable
Adjustment
Idle
Screw