Dolmar PS-401 User Manual download pdf (Page 24)

Checking the chain lubrication

Never work with the chain saw withoute sufficient chain

lubrication. Otherwise the service life of the chain and guide

bar will be reduced.

Before starting work check the oil level in the tank and the oil

feed.

Check the oil feed rate as described below:

- Start the chain saw.

- Hold the running chain saw approx. 15 cm above a trunk

or the ground (use an appropriate base).

If the lubrication is sufficient, you will see a light oil trace

because oil will be flung off the sawing device. Pay attention to

the direction the wind is blowing and avoid unnecessary

exposure to the oil spray!

Checking the chain brake

Do not work with the chain saw without first checking

the chain brake!

- Start the engine as described (make sure you have a good

footing, and place the chain saw on the ground in such a

way that the guide bar is free of contact).

- Grasp the tubular handle firmly with one hand and hold the

grip with the other.

- With the engine running at moderate speed, press the hand

guard (D/6) in the direction of the arrow with the back of

your hand until the chain brake engages. The chain should

stop immediately.

- Immediately release the throttle and release the chain

brake.

Caution: If the chain does not stop immediately in this

test, turn off the engine immediately. Do NOT use the

chain saw in this condition! Contact a DOLMAR service

center.

Adjusting the carburetor

IMPORTANT: Carburetor adjustment may be done only by

a DOLMAR service center!

Do not undertake adjustments to the adjusting screws (H)

and (L) without a tachometer! Improper adjustment can

lead to engine damage!

The adjusting screws (H) and (L) are factory set almost all the

way out (turned counterclockwise).

A tachometer (F/1) is necessary to adjust the adjusting

screws (H) and (L), because exceeding the permissible

maximum speed leads to overheating and under-lubrica-

tion.

This can damage the engine!

The only user-adjustable setting is the idle adjusting

screw (speed). If the blade rotates in idle (without the throttle

pressed), it is absolutely necessary to correct the idle

speed before using the tool!

Do not adjust the idle speed until the machine has been

completely assembled and checked!

Adjust the idle speed only with the engine warm, a clean

air filter, and properly installed cutting tool.

Use a screwdriver (F/2, blade width 4 mm, part No. 944 340

001) to adjust the screw.

SERVICE

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Dolmar PS-401 User Manual Page 24

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