Adjusting Saw Chain Tension - Makita DUA301 Instruction Manual

To remove the saw chain, perform the following steps:
1. Loosen the chain adjusting screw, then the retaining nut.
► 1 . Chain adjusting screw 2. Retaining nut
2.
Remove the sprocket cover, and then remove the
saw chain and guide bar from the tool body.
To install the saw chain, perform the following steps:
1. Check the direction of the saw chain. Match the direc-
tion of the saw chain with that of the mark on the tool body.
2. Fit one end of the saw chain on the top of the guide
bar. Fit the other end of the saw chain around the sprocket.
Make sure that the saw chain is properly fitted on the
sprocket and properly fitted in the groove of the guide bar.
3. Attach the guide bar to the tool body, aligning the
hole on the guide bar with the pin on the tool body.
2
► 1 . Sprocket 2. Hole
4. Insert the protrusion on the sprocket cover to the
tool body, and then close the cover so that the bolt and
pin on the tool body meet their counterparts on the cover.
3
► 1 . Protrusion 2. Sprocket cover 3. Bolt 4. Pin
2 1
1
2
1
4
13 ENGLISH
5. Tighten the retaining nut to secure the sprocket
cover, then loosen it a bit for tension adjustment.
► 1 . Retaining nut

Adjusting saw chain tension

CAUTION:
Do not tighten the saw chain too
much. Excessively high tension of saw chain may
cause breakage of saw chain and wear of the guide
bar.
CAUTION:
A chain which is too loose can
jump off the bar and it may cause an injury
accident.
The saw chain may become loose after many hours
of use. From time to time check the saw chain tension
before use.
1. Loosen the retaining nut a bit to loosen the
sprocket cover lightly.
► 1 . Retaining nut
1
1