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RESTORE ORIGINAL
SHAPE BY ROUNDING
THE FRONT
Fig. 68
LUBRICATING HOLE
Fig. 67
MAINTAINING THE GUIDE BAR
CAUTION:
Make sure the chain has stopped before you do any
work on the saw.
Every week of use, reverse the guide bar on the saw to
distribute the wear for maximum bar life. See Figure 68.
The bar should be cleaned every day of use and checked
for wear and damage.
Feathering or burring of the bar rails is a normal process of
bar wear. Such faults should be smoothed with a file as
soon as they occur.
A bar with any of the following faults should be replaced:
Q Wear inside the bar rails that permits the chain to lie
over sideways
Q Bent guide bar
Q Cracked or broken rails
Q Spread rails
In addition, lubricate guide bars with a sprocket at their tip
weekly. Using a grease syringe, lubricate weekly in the
lubricating hole. See Figure 68.
Turn the guide bar and check that the lubrication holes and
chain groove are free from impurities.
MAINTAINING THE SAFE-T-TIP
®
NOSE
GUARD
CAUTION:
Make sure the chain has stopped before you do any
work on the saw.
WARNING:
Although the guide bar comes with a SAFE-T-TIP
®
anti-
kick-back device already installed, be sure to check the
tightness of the mounting screw before each use.
Tighten the mounting screw of the nose guard as instructed
below. These are specially hardened screws. If you cannot
install the screw tightly, replace both the screw and the
SAFE-T-TIP
®
before further operation. Do not replace the
screw with an ordinary screw.
In addition to preventing chain contact with solid objects at
the nose of the bar, the SAFE-T-TIP
®
also helps keep the
chain away from abrasive surfaces, such as the ground.
Keep it on the right-hand side of the bar where it will be
between the chain and the ground during flush with ground
cutting.
The mounting screw requires a 5/16 in. spanner or
adjustable spanner to achieve the recommended
tightness of 4-5 Nm (35 to 45 in. lb.). A tightness
within this range can be achieved by using the following
method. See Figure 69.
1. Tighten the screw with your finger.
2. Tighten the screw an additional three-quarters of a turn
using a spanner.
MOUNTING
SCREW
SAFE-T-TIP
®
Fig. 69
MAINTENANCE