Operation - Makita UC3041A Instruction Manual

OPERATION

Switch action
► Fig.12: 1. Lock-off button 2. Switch trigger
CAUTION:
• Always be sure that the tool is switched off and
unplugged before checking function on the
switch trigger.
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
► Fig.13
NOTE:
• Do not turn on and off too often within a short
time (five seconds or less). The temperature
inside the tool will rise and may cause the tool
damage. The time varies by atmosphere tem-
perature and other conditions.
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
Lubrication
CAUTION:
• Always be sure that the tool is switched off and
unplugged before lubricating the saw chain.
► Fig.14
Lubricate the saw chain and bar using biologically degrad-
able saw chain oil with an adhesion agent. The adhesion
agent in the saw chain oil prevents the oil from being
thrown off the saw excessively quickly. Mineral oils must
not be used, as they are harmful to the environment.
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.
• 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.
• When filling the chain saw with chain oil for the
first time, or refilling the tank after it has been
completely emptied, add oil up to the bottom
edge of the filler neck. The oil delivery may
otherwise be impaired.
► Fig.15: 1. Oil filler cap 2. Strap
To fill the oil, perform the following steps:
1. Clean the area around the oil filler cap thoroughly
to prevent any dirt from entering the oil tank.
2. Unscrew the oil filler cap and add oil up to the
lower edge of the filler neck.
3. Screw the oil filler cap firmly back in place.
4. Wipe away any spilt chain oil carefully.
NOTE:
• When the chain saw 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
mechanism. Run the saw without load until it
does so (see "CHECKS ").
CHECKS
Before starting work, carry out the following checks:
Checking the chain tension
WARNING:
• Always withdraw the mains plug before check-
ing the chain tension, and wear safety gloves.
► Fig.16: 1. Loosen 2. Tighten 3. Adjusting dial
4. Guide bar 5. Saw chain
Make sure the saw chain fits snugly against the lower
side of the bar (see circle).
Check the chain tension frequently, as new chains are
subject to elongation.
Excessively high tension of saw chain may cause
breakage of saw chain, wear of the guide bar and
breakage of the adjusting dial.
A chain which is too loose can jump off the bar, and
therefore presents an accident risk.
If the chain is too loose: Refer to the section titled "
Adjusting saw chain tension " and adjust the saw chain
tension again.
Checking the switch action
CAUTION:
Before plugging in the tool, always
check to see that the switch trigger actuates properly
and returns to the "OFF" position when released.
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
Do not pull the switch trigger hard without depressing
the lock-off button. This may cause switch breakage.
Checking the chain brake
NOTE:
• If the chain saw fails to start, check whether the
chain brake is released. To release the chain
brake, pull the hand guard backwards firmly until
you feel it engage.
► Fig.17: 1. Front hand guard 2. Lock 3. Unlock
► Fig.18: 1. Front hand guard 2. Lock 3. Unlock
Check the chain brake as follows:
1. Hold the chain saw with both hands when switch-
ing it on. Hold the rear handle with your right hand,
the front handle with your left. Make sure that the
bar and the chain do not contact with any object.
2. First press the lock-off button, then the switch
trigger. The saw chain starts immediately.
3. Press the front hand guard forwards using the
back of your hand. Make sure that the saw chain
comes to an immediate standstill.
14 ENGLISH