Makita UC 4001A User Manual

16
2 3
1
Check the sprocket (A/1) before mounting a new chain.
CAUTION:
Worn out sprockets (B) may damage the new chain and must
therefore be replaced.
Do not attempt to replace the sprocket yourself. Sprocket
replacement requires special training and tools and must be
done at a MAKITA service centre.
B
A
NOTE:
The carbon brush is very delicate, so be careful not to let it drop.
When taking it out, be sure to note the position it was
installed in, since each brush is run in with the rotor.
- Use the combination wrench to unscrew the cover (C/2),
and then pull out the brush (C/3).
- If the wear limit has not yet been reached, put the brush
back in the same position and screw the cover (C/2) back
on.
- Run the saw briefly (about a minute) so the brushes can run
in again.
IMPORTANT: Now test the run-out brake (see page 14). If the
saw chain does not come to a full stop within two second, run
the saw again briefly and repeat the test until the brake
functions properly.
NOTE: After installing new carbon brushes, run the saw about
5 minutes and then check the run-out brake.
C
System
total
Carbon brushes
Oil tank, oil pump
Brake
Brake
Observation
electric motor does not function
low pulling power
no oil on the saw chain
Saw chain does not stop instantly
Saw chain continues to run
Malfunction
Chain saw does not work
insufficient performance
no chain lubrication
Chain brake
Run-out brake
Trouble shooting
Cause
no power supply,
cable defective
chain brake actuated
Mains fuse blown
Carbon brushes worn down
oil tank empty,
oil guide groove dirty
Brake band worn down
Carbon brushes worn down
Inspecting and replacing
the carbon brushes
IMPORTANT:
Inspect the carbon brushes at regular
intervals! A notch on the brush shows the limit of wear.
Replacing the saw chain
CAUTION: Use only chains and guide bars
designed for this saw (see the Extract from the spare
parts list)!
SERVICE

Makita UC 4001A Specifications

General

Power Source	Electric
Motor Power/Power Input	1800 W
Voltage	230 V
Bar Length	40 cm (16")
Weight	4.7 kg
Chain Pitch	3/8"
Chain Gauge	1.3 mm
Oil Tank Capacity	0.2 L

Summary

Safety Precautions

General Precautions

General safety advice and user responsibilities for operating the chain saw safely.

Personal Protective Equipment

Essential gear like helmets, eye/ear protection, gloves, and boots for user safety.

Putting Into Operation

Steps and precautions for safely starting and using the electric chain saw.

Working Behavior/Method of Working

Guidelines for safe handling, cutting techniques, and environmental awareness during operation.

Putting Into Operation

Mounting the Guide Bar and Saw Chain

Step-by-step instructions for assembling the guide bar and saw chain onto the saw.

Tightening the Saw Chain

Procedure for properly tensioning the saw chain using the adjustment screw.

Checking the Chain Tension

How to verify the correct tension of the saw chain for safe operation.

Chain Brake

Explanation of the inertial and manual chain brake function and engagement.

Run-Out Brake

Description of the run-out brake that stops the chain when the motor is switched off.

Chain and Run-Out Brake Maintenance

Importance of regular inspection and maintenance of the brake systems by a service center.

Saw Chain Oil

Refilling the Oil Tank

Instructions for safely refilling the chain oil tank.

Lubricating the Saw Chain

Guidance on ensuring adequate chain lubrication for optimal performance and longevity.

Switching On the Motor

Checking the Chain Brake

Test procedure to ensure the chain brake is functioning correctly.

Maintenance

Sharpening the Saw Chain

Instructions and techniques for sharpening the saw chain for optimal cutting.

Cleaning the Guide Bar, Lubricating the Sprocket Nose

Maintenance steps for the guide bar and sprocket nose.

Replacing the Saw Chain

Guide on how to replace the saw chain, including sprocket inspection.

Inspecting and Replacing the Carbon Brushes

Procedure for checking and replacing worn carbon brushes.

Trouble Shooting

Common problems, their causes, and solutions for the electric chain saw.

Instructions for Periodic Maintenance

General Work

Regular cleaning and checks for the chain saw, chain, and guide bar.

Each Time Before Putting the Saw Into Operation

Pre-operation checks including chain, lubrication, brakes, and power switch.

After Each Shutdown

Post-operation cleaning and checks of the chain carrier and guide bar.

Storage

Guidelines for safely storing the chain saw and its components.

Service, Spare Parts and Guarantee

Maintenance and Repair

Recommendation to use MAKITA service centers for complex maintenance and repairs.

Spare Parts

Importance of using original MAKITA spare parts for safety and reliability.