When the log is supported along its entire length as
shown in Fig. 16, it is cut from the top (overbuck).
When the log is supported on one end, as shown in
Fig. 17, cut 1/3 the diameter from the underside
(underbuck). Then make the finished cut by overbucking
to meet the first cut.
When the log is supported on both ends, as shown in
Fig. 18, cut 1/3 of that diameter from the top overbuck.
Then make the finished cut by underbucking the lower 2/3
to meet the first cut.
When bucking on a slope, always stand on the uphill side
of the log, as shown in Fig. 19. When "cutting through", to
maintain complete control, release the cutting pressure
near the end of the cut without relaxing your grip on the
chain saw handles. Don't let the chain contact the ground.
After completing the cut, wait for the saw chain to stop
before you move the chain saw. Always stop the motor
before moving from tree to tree.
Carry the tool by the front handle with the tool turned off,
finger off the switch, the guide bar and the saw chain to
the rear. Use the scabbard to cover the guide bar and the
saw chain. (Fig. 20)
Always be sure that the tool is switched off and unplugged
before attempting to perform inspection or maintenance.
Filling saw chain
To get the most in cutting performance from your tool, you
must keep the cutters sharp and filed properly. (Fig. 21)
To file the saw chain, push the file in the direction of the
arrow. When pulling it back, be careful not to touch the
cutters with the file. (Fig. 22)
After a saw chain has been filed two or three times, the
"raker" (see Fig. 21) may need to be filed down slightly.
This is because the raker acts as a depth gauge for the
cutters. As the cutters are filed, they lose some height due
to their angled shape. Eventually, the cutters will become
lower than the depth gauge and consequently, will not be
able to cut. To remedy this, use a flat file to file the tops of
the rakers so that they are about 0.5 mm below the tips of
the cutters (see Fig. 21). Be careful not to file the rakers
excessively or the cutters will be allowed to take too large
of a "bite", causing the tool to stall or snag in the cut.
Removing chip buildup
Chips and sawdust will build up in the guide bar groove
and oil hole, clogging them and impairing oil flow. Remove
the guide bar and clean them out. (Fig. 23 & 24)
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace
when they wear down to the limit mark. Keep the carbon
brushes clean and free to slip in the holders. Both carbon
brushes should be replaced at the same time. Use only
Makita carbon brushes. (Fig. 25)
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps. (Fig. 26)
Storing the tool
Before storing the tool, be sure to do the following:
• Remove the chain cover. Remove any chips and
sawdust from the tool.
• Install the chain cover. Turn the tool on and depress
the oil button 4 or 5 times.
• Cover the saw chain and the guide bar with the
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.