Makita UC4551A Operation, Adjusting saw chain tension, Engaging extension cord, Switch action

Adjusting saw chain tension

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 sprocket cover lightly.
2.	Keep lifting up the guide bar tip slightly to keep

Engaging extension cord

CAUTION:

•Make sure that the extension cord is unplugged to the mains outlet.

	the guide bar horizontal.
3.	Turn the adjusting screw / dial to adjust saw chain
	tension.

3

1

1.	Cord hook
2. Tool's cord
3.	Extension cord
4.	Plug and socket
	(the shape may

2-4 mm

1. Loosen

2. Tighten

2

differ from country

to country)

1	3	5
	2
	4
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		2-4 mm

3 5

1 2 4

014449

3.	Chain adjusting
	screw
4. Guide bar
5.	Saw chain

1.Loosen

2.Tighten

3.Adjusting dial

4.Guide bar

5.Saw chain

4

014359

When engaging the extension cord, secure it to the chain saw's cord with the cord hook.

Attach the cord hook about 100 - 200 mm from the extension cord connector. This helps prevent unintentional disconnection.

OPERATION

CAUTION:

•Hold the tool firmly with right hand on the rear handle and left hand on the front handle when performing the tool.

Switch action

1	1.	Lock-off button
	2.	Switch trigger

4.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 - 4 mm.

5.After adjusting the chain tension, tighten the sprocket cover.

CAUTION:

•Do not tighten the saw chain too much. 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.

•Carry out the procedure of installing or removing saw chain in a clean place free from sawdust and the like.

2

014376

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.

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.

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