McCulloch 33 manual Bar and chain installation Intenz, Fuel mix

After re-fuelling, always wipe off any spilled fuel. Move the chainsaw away from the fuelling point before starting the engine.

6Keep by-standers and animals out of the work area; at a minimum distance of 10 m or twice the timber length. If necessary, use warning signs to keep on-lookers at a dis- tance.

Carefully survey the working site to note any hazards, eg. roads, paths, electricity cables, dangerous trees etc. Do not use the chainsaw if the device for stopping the chain

(safety chainbrake) does not work correctly. Never place hands on the chain whilst the engine is running. Ensure someone is within hearing distance in case of an accident. If this is not possible, it is recommended that users oper- ating chainsaws in remote areas carry an adequate first-aid kit with them and ensure someone knows their location. Never leave the engine running while the tool is unattended.

ONLY USE ORIGINAL SPARE PARTS AND ACCES- SORIES.

C. Bar and chain installation - Intenz

Ensure engine is always switched off before fitting or adjusting chain. Wear a pair of protective gloves when fitting or adjusting chain.

1Ensure chain brake lever is in disengaged position (A). Remove retaining nuts (B) and cover.

2Turn the adjusting screw (D) counterclockwise taking it fully back.

3Feed chain into bar groove ensuring correct direction of chain (P).

4Work the chain around sprocket and set the bar as illus-

trated, make the lower hole (F) coincide with the pin (G) of the adjusting screw.

5Reposition side cover.

6Lock nuts (B) finger tight.

Adjust chain tension pin by turning screw (D) so that when lifting the chain an entire drive link is just visible.

The chain is correctly tensioned when there is no slack on the underside of the bar, and it runs freely in bar groove. Tighten the bar retaining nuts with the wrench, pushing bar tip upwards.

D. Fuel mix

Use only fuel recommended by this manual. This product is fitted with a 2-stroke engine and therefore requires a 2-stroke petrol and oil mix.

Use unleaded petrol with a minimum octane rating of 90. Only use oil from sealed containers. In order to obtain a good fuel mix, put the oil into the container before the petrol. The use of sub-standard petrol or oil may reduce perform- ance or reduce the life of certain components.

UNLEADED PETROL

If using unleaded petrol, you must use a totally synthetic 2- stroke engine oil or branded 2-stroke engine oil, see table.

IMPORTANT

Always shake the fuel mix container thoroughly before pour- ing any fuel mix.

Fuel mix properties may deteriorate with time and should be used up within 2 months.

We recommend that you prepare fuel mix according to your immediate requirements only. Never use fuel mix more than 2 months old so as to avoid possible engine damage.

WARNING

Do not smoke when re-fuelling.

Always open the fuel cap slowly, to release any pressure build up in the tank.

Re-fuel in open spaces only, keeping away from naked flames or sparks.

SAFE STORAGE OF FUEL

Petrol fuel mix is highly inflammable. Put out all cigarettes, pipes and cigars before working with fuel. Avoid spilling fuel. Store fuel in a cool, well ventilated place, in an approved con-

tainer specifically designed for the purpose. 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.

Never store large amounts of fuel.

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

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 rec- ommend 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 illustra- tion).

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