McCulloch MAC 538E Usagef, Chain Lubrication, Starting A Cold Engine, Starting A Warm Engine

Models: MAC 538E

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CHAIN LUBRICATION

UK

Never store engine with fuel in the tank in enclosed, poorly ventilated areas, where fuel fumes may reach an open flame, spark or pilot light such as in a furnace, water heater, clothes dryer etc. Petrol fumes can cause an explosion or a fire. Do not store large amounts of fuel.

CHAIN LUBRICATION

IMPORTANT

The service life of the bar and chain depends on good lubri- cation.

Always use chain lubricating oil of medium viscosity. We recommend special McCulloch chain lubricating oil.

Never use waste oil for this purpose. This results in damage to the bar, the chain and the oil pump.

Refill the chain oil tank each time the saw is refuelled.

To prevent possible restarting problems avoid running the fuel tank dry. This also helps to extend engine life.

NOTE: Saw chain stretches during use particularly when it is new, and it will occasionally be necessary to adjust and tighten it. A new chain will require adjustment after about 5 minutes of operation.

The mechanical oil pump for chain lubrication can be adjusted.

The feed rate of the chain oil pump can be adjusted by means of the regulating screw (A) (see details in the illustration).

STARTING AND STOPPING

E

IMPORTANT

Never start or operate unless bar and chain are properly installed. Before starting always move the saw away from the fuelling area and place it on a firm, flat surface, the guide bar to the front.

STARTING A COLD ENGINE

1Check that the chain brake is in the disengaged position moving the lever (L) towards the front handle.

Move the stop switch upwards .

2Slide the choke lever (A) to the CLOSED position (OUT). Push the decompression valve (D) down if your models is fitted with one.

3Depress throttle trigger lock out (S). Depress throttle trig- ger (G) and then operate throttle advance (P) moving it backwards.

4Hold the saw firmly as shown in illustration and pull the starter rope until the engine fires once.

Beware of moving chain!

5Move choke lever (A) to the OPEN position (IN). Push the decompression valve (D) down if your models is fitted with one.

Pull the starter rope until the engine starts.

Allow engine to warm up for ten seconds for better cutting performance.

Squeeze the throttle trigger (G) to release the throttle advance. If engine fails to start, repeat these instructions.

6The engine is stopped by depressing the STOP switch to STOP position.

After lengthy use of the chain at full speed,we recommend to run the engine for a few seconds at idle speed before stopping it.

STARTING A WARM ENGINE

Check that the ignition switch is not in the “stop” position and do not use the throttle lock.

Hold the saw firmly, press valve (D) for decompression and pull the starter rope.

STARTING A WARM ENGINE AFTER RE-FUELLING

In the fuel tank as run completely dry, procede to start as with a cold engine.

USAGEF

IMPORTANT

Before using a chain saw read the Operator’s Manual and all safety precautions carefully.

FELLING TREES

Make sure that there are no bystanders or animals in the work area.

Study the direction of the fall of the tree and then plan your exit path away from the planned direction of fall.

Don’t fell trees when there is a strong wind.

1Clear the tree base of interfering limbs and brush. Clean the work area from stones or other objects which could damage the chain. If the tree has large protruding roots, remove them before felling (see illustrations).

2A) Cut a felling notch (A) of 45°on the side you want the tree to fall to a depth of about one third of the trunk dia- meter (d). Then make a felling cut (B) about 5 cm higher than the felling notch on the opposite side of the tree. Make sure that the felling cut does not go right through the trunk. A hinge (C) must always be left to provide control over the direction of the fall.

B) Use wedges to control the moment and direction of the fall.

3When the tree starts to fall, walk away along your preplan- ned escape path.

CUTTING FALLEN TRUNKS

4A) Limbing thick branches. For limbing and bucking leave the lower limbs to support the log off the ground.

B)Supported at one end only. Begin with a bottom cut made by the upper side of the bar (A); the depth of the cut should be about one third of the log diameter. Finnish with a top cut (B) meeting the first one. With this technique splitting, cracking can be avoided

C)Supported at both ends. Begin with a top cut about one third of the log diameter. Then finish with a bottom cut (B) meeting the first one. this technique avoids the risk of pinching the bar in the log.

D)If the log is supported along its whole length it may be cut normally from above. Take care not to touch the ground with the chain.

When working on a slope always stand on the uphill.

When cutting prepared timber, use clamps or chocks to secure work.

Use extreme caution when cutting small size brush and saplings which may catch the chain and pull you off balance.

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McCulloch MAC 538E Usagef, Chain Lubrication, The mechanical oil pump for chain lubrication can be adjusted, Felling Trees