Fig.34
(4) Cutter length
(5) Filing angle
(6) Side plate angle
(7) Top plate cutting angle
Guide bar
•
Reverse the bar occasionally to prevent partial wear.
• The bar rail should always be a square. Check for wear of the bar
rail. Apply a ruler to the bar and the outside of a cutter. If a gap is
observed between them the rail is normal. Otherwise, the rail is
worn. Such a bar needs to be corrected or replaced. (Fig. 35).
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
• Always wear protective gloves during maintenance operations.
• NEVER perform maintenance when motor is hot.
• Ensure that all screws and bolts are tightly fastened so that the
unit can be used safely.
• Regular maintenance is essential for safety and a consistently
high performance.
• Do not use the unit if any parts are damaged or worn.
• These parts MUST be REPLACED not repaired, use only
original spare parts.
Chain sharpening
• Sharpen the chain wearing protective gloves and a round file.
• Sharpen the cutting links with outward strokes only.
• Every 3-4 times the chain is sharpened check the height of the
depth gauges, if necessary lower them using a flat file, then round
off the front corner.
WARNING!
A sharp chain produces well defined chips. When the chainsaw
is producing saw dust it is time to sharpen the chain.
Sharpening the chain
In order to extend the saw chains life and the efficiency of the saw
the teeth should be sharpened regularly. Use a round file with a
4mm diameter to sharpen the teeth. Always sharpen the teeth in
accordance with the original angles.
• When sharpening teeth all blades must be the same length.
To keep all teeth the same shape and size always start with the
most worn blade and file the other blades to match the length.
• Always file the blades on same side and in the same direction
by pushing from the inside to the outside of the teeth. In order to
avoid cuts when handling the chain always wear gloves.
• Every 3 times the blades are sharpened check the height of the
depth limiter. The depth limiter spacing is 0.5mm. Adjust the height
of the depth limiter by using a flat file. Make sure when filing the
depth limiter to follow the front angle in order to maintain the shape
of the blade.
Guide bar
• The guide bar is provided with a sprocket at the tip, this must be
lubricated with grease at all times.
• The guide bar should be reversed every 8 working hours to
ensure uniform wear.
• Keep the bar groove and lubrication hole clean using the bar
groove cleaner supplied.
• Check the bar rails frequently for wear and if necessary remove
the burs and square up the rails using a flat file.
WARNING!
NEVER mount a new chain on a worn sprocket
Air filter
Check air filter every use. Wash the filter in a non-flammable liquid
detergent, (i.e. hot soap water) and dry well.
WARNING!
When refitting the air filter ensure that it is correctly positioned
before reassembly.
Fuel filter
Check fuel filter periodically. Replace if too dirty.
• NEVER store the unit with fuel in the tank in an environment
where petrol fumes could come into contact with a flame, spark
or sources of extreme heat.
• Store the unit in a clean and dry environment.
• Allow the motor to cool before storing.
• If fuel tank needs to be drained, do so outdoors when the motor
is cold.
• Respect the environment do not dispose of oil or petrol by
pouring into the drainage system or into the ground.
• Do not add, remove or modify any of the units components.
To do so could result in:
Injuries to the operator and other persons present.
Damage to the unit.
Moreover this will invalidate the warranty.
Extended storage
• Inspect, clean and repair if necessary.
• Remove all fuel from tank safely.
• Remove spark plug and pour one tea spoon of clean oil into spark
plug hole cylinder replace spark plug.
• Store in clean, dry area.
DANGER THIS UNIT PRODUCES CARBON MONOXIDE.
UNDER NO CIRCUMSTANCES USE THIS PRODUCT INDOORS.
Fig.35
Failures such as difficulty starting unit, poor performance can normally be prevented if careful attention is paid to all operating instructions and
maintenance procedures.
Checking the spark plug
Remove the spark plug cap and clean any dirt or debris from around the plug. Remove the spark plug and install it in the spark plug cap. Set
the plugs electrode on the cylinder head. Crank the engine and sparks should jump across the gap.
Spark gap 0.6 - 0.7mm (.23” .028”)
WARNING!: Be sure that there is no spilled fuel around the spark plug. Split fuel may ignite.
WARNING!: Petrol is extremely flammable and is potentially explosive under certain circumstances. Do not smoke or allow sparks or
flames in the area.
WARNING!: Never try to repair the unit, take to a licensed professional.
Problem
Possible cause
Remedy
The motor is not functioning properly
Is there fuel in the tank?
Is the correct fuel being used?
Is the fuel flowing into the motor?
There is no spark from the spark
plug?
Is the compression correct?
Refill the fuel tank
Check the mix is 25:1 Unleaded petrol
to oil
Turn the engine switch to the OFF
position and loosen the drain screw
at the base. Petrol should flow from
the drain when the engine switch is
turned on. Drain petrol into a suitable
container.
Replace/check the spark plug
Check compression
Motor stalls
Water in fuel
Spark gap is wrong
Replace fuel
Adjust spark gap
Trouble Shooting Guide
633855-Instructions.indd 6
26/3/07 17:05:58
