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Use a Flat File and a Depth Gauge Jointer to lower all gauges
uniformly. Depth gauge jointers are available in .020 in. to .035
in. Use a .025 in. depth gauge jointer. After lowering each depth
gauge, restore original shape by rounding the front. Be careful
not to damage adjoining drive links with the edge of the file.
See Figures 39 - 40.
Depth gauges must be adjusted with the flat file in the same
direction the adjoining cutter was filed with the round file.
Use care not to contact cutter face with flat file when ad-
justing depth gauges.
GUIDE BAR MAINTENANCE
See Figure 41.
When the guide bar shows signs of wear, reverse it on the
saw to distribute the wear for maximum bar life. 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.
n Wear inside the bar rails which permits the chain to lay
over sideways.
n Bent guide bar.
n Cracked or broken rails.
n Spread rails.
In addition, guide bars with a sprocket at their tip must be
lubricated weekly with a grease syringe to extend the guide
bar life. Using a grease syringe, lubricate weekly in the lu-
bricating hole.
Turn the guide bar and check that the lubrication holes and
chain groove are free from impurities.
REVERSING THE GUIDE BAR
See Figures 41 - 43.
n Remove the SAFE-T-TIP
®
mounting screw.
n Remove the SAFE-T-TIP
®
from the bar.
n Remove the chain from the bar and turn the bar over.
NOTE: Bottom of bar should not be on top.
n Replace the chain on the bar. Refer to “Replacing Bar and
Chain” earlier in this manual for specific information.
n Replace the SAFE-T-TIP
®
on the bar nose.
RESTORE ORIGINAL
SHAPE BY ROUNDING
THE FRONT
FLAT FILE
DEPTH GAUGE JOINTER
Fig. 39
Fig. 41
LUBRICATING HOLE
Fig. 40
MAINTENANCE
NOTE: The locking tab fits in the recessed hole in the
bar.
n Tighten the screw with your finger.
n From the finger-tight position, tighten the screw an ad-
ditional 3/4 of a turn using a wrench.