Operation; Adjusting Saw Chain Tension - Makita UC120D Instruction Manual

Loosen the hex socket head bolt with the hex wrench
provided. Remove the guide bar.
2
001733
Fit the saw chain over the guide bar. Notice that the
cutters must be facing the revolving (arrow) direction.
001734
Fit the saw chain over the sprocket. Install the guide bar
so that its concave portion will contact the saw chain
tension adjusting spring.
2
1
001735
Tighten the bolt to secure the guide bar. Install the
sprocket guard and tighten the screws to secure it.

Adjusting saw chain tension

1
001736
1. Hex socket
head bolt
1
2. Hex wrench
3. Guide bar
3
1. Guide bar
2
2. Cutter
1
1. Sprocket
2. Saw chain
tension
3 adjusting spring
3. Concave portion
of guide bar
1. Hex socket
head bolt
2 - 3 mm
001737
The saw chain may become loose after many hours of
use. From time to time check the saw chain tension
before use.
Grasp the saw chain in the middle of the guide bar and
lift up. The gap between the guide bar and the tie strap
of the saw chain should be approx. 2 - 3 mm. If the gap
is not approx. 2 - 3 mm, slightly loosen the hex socket
head bolt which secures the guide bar. The gap will be
automatically adjusted to approx. 2 -3 mm by the saw
chain tension adjusting spring.
Then tighten the hex socket head bolt securely after
making sure that gap is approx. 2 - 3 mm.

OPERATION

Lubrication
1
001738
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before lubricating the
saw chain.
Always use vegetable oil when pruning fruit trees.
•
Mineral oil may harm trees.
Lubricate the whole saw chain evenly before each use.
Also lubricate it whenever replacing a fully discharged
battery cartridge with a charged one.
7
1. Hex socket
1
head bolt
2. Hex wrench
2
1. Chain oil
2. Saw chain
2