Adjusting Saw Chain Tension; Operation - Makita UC100D Instruction Manual

4. Align the hole on the guide bar with the pin on the
tool body, and then place the guide bar as shown in the
figure.
► Fig.10: 1. Guide bar 2. Hole 3. Pin
5. Slide the guide bar toward the sprocket to lock the
pin.
► Fig.11: 1. Guide bar 2. Pin
6. Remove the guide bar from the tool body.
7. Check the direction of the saw chain. Match the
direction of the saw chain with that of the mark on the
tool body.
► Fig.12: 1. Mark on tool body
8. Fit one end of the saw chain on the top of the
guide bar.
9. Fit the other end of the saw chain around the
sprocket, then attach the guide bar to the tool body so
that the hole on the guide bar is aligned with the pin on
the body.
► Fig.13: 1. Sprocket
Press the guide bar against the tool body to release the
pin. The saw chain tension is automatically adjusted.
► Fig.14: 1. Saw chain 2. Pin 3. Sprocket
10. Place the sprocket cover so that the bolt and pin
on the tool body meet their counterparts on the sprocket
cover.
► Fig.15: 1. Sprocket cover 2. Bolt 3. Pin
11. Turn the lever clockwise until the sprocket cover is
secured then return it to the original position.
► Fig.16: 1. Lever 2. Sprocket cover
Make sure that the saw chain does not loose and the
saw chain can be moved smoothly back and forth. If
necessary, adjust the tension of the saw chain by refer-
ring to the section for adjusting saw chain tension.

Adjusting saw chain tension

CAUTION:
A chain which is too loose can
jump off the bar and it may cause an injury or
accident.
The saw chain may become loose after many hours
of use. From time to time check the saw chain tension
before use.
If the saw chain is loose, adjust the saw chain tension.
1. Pull the lever up.
► Fig.17: 1. Lever
2.
Turn the lever counterclockwise a little to loosen
the sprocket cover lightly. The chain tension is adjusted
automatically.
► Fig.18: 1. Sprocket cover 2. Lever
3. Turn the lever clockwise until the sprocket cover is
secured then return it to the original position.
► Fig.19: 1. Lever 2. Sprocket cover

OPERATION

Lubrication
CAUTION:
Do not operate the tool when the tank is
empty. Replenish the oil in due time before the tank is empty.
CAUTION:
Prevent the oil from coming into
contact with the skin and eyes. Contact with the
eyes causes irritation. In the event of eye contact,
flush the affected eye immediately with clear
water, then consult a doctor at once.
CAUTION:
Never use waste oil. Waste oil contains
carcinogenic substances. The contaminants in waste
oil cause accelerated wear of the oil pump, the bar and
the chain. Waste oil is harmful to the environment.
NOTICE:
When the tool is used for the first time,
it may take up to two minutes for the saw chain oil
to begin its lubricating effect upon the saw mech-
anism. Run the saw without load until it does so.
NOTICE:
When filling the chain oil for the first time,
or refilling the tank after it has been completely emp-
tied, add oil up to the bottom edge of the filler neck.
The oil delivery may otherwise be impaired.
NOTICE:
Use the saw chain oil exclusively for
Makita tools or equivalent oil available in the market.
NOTICE:
Never use oil including dust and parti-
cles or volatile oil.
NOTICE:
When pruning trees, use botanical oil.
Mineral oil may harm trees.
NOTICE:
Before the cutting operation, make sure
that the provided oil tank cap is screwed in place.
Saw chain is automatically lubricated when the tool is in
operation. Check the amount of remaining oil in the oil
tank periodically through the oil inspection window.
► Fig.20: 1. Oil inspection window 2. Oil tank cap
To fill the oil, perform the following steps:
1. Clean the area around the oil tank cap thoroughly
to prevent any dirt from entering the oil tank.
2. Lay the tool on its side.
3. Push the button on the oil tank cap so that the
button on the other side stands up, and then remove the
oil tank cap by turning it.
► Fig.21: 1. Oil tank cap 2. Tighten 3. Loosen
4. Fill the oil tank with the oil. The proper amount of oil is 55 ml.
5. Screw the oil tank cap firmly back in place.
6. Wipe away any spilt chain oil carefully.
NOTE: If it is difficult to remove the oil tank cap, insert
the tip of slotted screwdriver into the slot of the oil
tank cap, and then remove the oil tank cap by turning
it counterclockwise.
► Fig.22: 1. Slot 2. Slotted screwdriver
After refilling, hold the tool away from the material to
be cut. Start it and wait until lubrication on saw chain is
adequate.
► Fig.23
14 ENGLISH