Racing RAC49CS4T, User Manual

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The chain bar needs the maintenance described in the following section for the saw to work at an optimum
level of performance.
The sprocket tip on your new saw has been pre-lubricated at the factory. Failure to lubricate the guide bar
sprocket tip as explained below will result in poor performance and seizure, voiding the manufacturer’s
warranty.
To lubricate the sprocket tip
If the saw is used intensively it will be necessary to lubricate the guide bar sprocket tip (J) regularly (once a
week).
To do this, first thoroughly clean the 2 mm hole (K) at the tip of the guide bar, and then press in a small
amount of multi-purpose grease.
Multi-purpose grease and grease guns are available in specialty retail trade.
TICE
The saw chain does not have to be removed in order to lubricate the sprocket tip of the chain bar. Lubrication
is possible during work, with the engine switched off.
Wear heavy duty work gloves when handling the bar and chain.
Most guide bar problems can be prevented merely by keeping the chainsaw well maintained. Insufficient guide
bar lubrication and operating the saw with a chain that is TOO TIGHT will contribute to rapid bar wear. To help
minimize bar wear, the following guide bar maintenance procedures are recommended.
Always wear protective gloves during maintenance operations.
Do not carry out maintenance when the engine is hot.
Chain sharpening
Chain sharpening requires special tools to ensure that cutters are sharpened at the correct angle and depth.
For the inexperienced chainsaw user, we recommend that the saw chain be professionally sharpened by the
nearest professional Service Centre. If you feel comfortable sharpening your own saw chain, special tools are
available from the professional Service Centre.
Sharpen the chain using protective gloves. After sharpening, the cutting links must all have the same width
and length.
Cutting links with different width and length can cause a kickback.
A sharp chain produces well-defined chips. When your chain starts to produce sawdust, it is time to sharpen.
After the blades have been sharpened 3-4 times, check the height of the depth limiter and if necessary lower it
with a flat file and then round off the front corner.
Instructions for sharpening a saw chain:
Chainsa
w type
File diameter
(not included)
Upper angle Lower angle
Upper tilt anglel
(55°)
Standard depth
Chucking rotation
angle
Chucking
inclination
angle
side angle
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