BAR and Chain Installation, Fuel MIX | McCulloch PRO MAC 72 guide

tensioned. Keep the spike or the saw body against the wood when cutting. Use only genuine accessories and spare parts. We recommend you have your unit periodically checked and serviced by an authorised dealer. Do not use chainsaw above shoulder height.

5Do not operate the chainsaw near a naked flame or spilled fuel. Only operate the chainsaw outside and in well ventilated areas. After re-fueling, always wipe off any spilled fuel. Move the chainsaw away from the fueling 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 necessary, use warning signs to keep on-lookers at a distance.

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 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 operating chainsaws in remote areas carry an adequate first-aid kit with them and ensure someone knows their location.

Never leave the engine running whilst the tool is unattended.

ONLY USE ORIGINAL SPARE PARTS AND ACCESSORIES.

Remove the clutch guard (A) and the outer bar plate (F). Check that the oil hole (E) is free from impurities. Fit the chain over the sprocket (H). Ensure correct direction of cutter tooth. Put the bar in position over studs (C) slide it towards the sprocket. Fit the chain into the bar groove and slide the bar forwards.

Make sure that the tang chain tensioning screw

(D)fits into the hole in the bar (E). Replace the outer bar plate and the clutch guard. Screw the two bar retention nuts finger tight (G). Tension the chain by turning the adjusting screw (I) clockwise while raising the tip of the bar. The tension is sufficient if the chain is snug on the bar but still moves freely around the bar when pulled by hand. Tighten the two bar retention nuts securely.

Always use the combination tool to install and tension the chain.

WARNING

Mount the bumber spike as shown in illustration.

RUNNING IN A NEW CHAIN

The chain must always be cold when carrying out adjustment.

1Let the chain run slowly for a few minutes. Check that the oil pump is delivering oil onto the chain.

2Stop the engine and adjust the chain tension.

3Check the tension of a new chain more frequently during initial usage and adjust as necessary.

4Repeat adjusting until the chain does not stretch any more.

Never touch the chain while the engine is running.

C BAR AND CHAIN

INSTALLATION

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

A . Clutch guard

B . Inner bar plate

C . Bar mounting bolts

D . Chain tensioning screw

E . Oil hole

F . Outer bar plate

G . Bar retention nuts

H . Sprocket

I . Adjusting screw

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 leaded or unleaded petrol with a minimum octane rating of 90. When using leaded petrol, use 2.5% (40:1) of McCulloch oil, otherwise use 5% (20:1) of a high quality 2-stroke engine oil (from a recognised brand). When using unleaded petrol, use 2.5% (40:1) of McCulloch oil or use 2.5% (40:1) of a high quality synthetic 2-stroke engine oil..

Only use oil from sealed containers. In order to obtain a good fuel mix, put the oil into the container before the petrol.

PRO MAC 72 specifications

The McCulloch PRO MAC 72 is a classic chainsaw, highly regarded by tree care professionals and woodcutters alike. Introduced in the late 1980s, it quickly gained a reputation for its robust build and reliable performance, making it a prized possession among those who value quality tools.

At the heart of the PRO MAC 72 is a powerful 72cc two-stroke engine, which delivers an impressive output that ensures strong cutting performance. This robust engine design allows for efficient power delivery, enabling the chainsaw to tackle even the most challenging tasks with relative ease. With a maximum speed of around 13,000 RPM, it can handle hardwoods and dense materials that would often be problematic for less powerful saws.

One of the standout features of the McCulloch PRO MAC 72 is its lightweight construction, considering its power. Weighing in at around 11.5 pounds, it strikes a balance between portability and stability, allowing users to operate it for extended periods without excessive fatigue. Its ergonomic handle design also enhances comfort and control, facilitating high maneuverability as you navigate through various cutting scenarios.

The chainsaw is equipped with an automatic oiling system that continuously lubricates the chain, ensuring optimal performance and reducing wear during operation. This feature not only prolongs the lifespan of the chain but also minimizes maintenance requirements, allowing users to focus on their cutting tasks without frequent interruptions.

Safety is a primary concern with any chainsaw, and the PRO MAC 72 incorporates several safety features to protect the user. It is outfitted with a chain brake system that engages automatically in the event of kickback, providing a critical layer of safety while in use. Additionally, the throttle lock ensures that inadvertent acceleration is minimized, keeping the operator secure while handling the saw.

Durability is another hallmark characteristic of the McCulloch PRO MAC 72. Built with high-quality materials, it withstands the rigors of daily use in demanding environments. Whether used in forestry, landscaping, or construction, the chainsaw's rugged design ensures that it remains functional and reliable.

In summary, the McCulloch PRO MAC 72 chainsaw is a blend of power, durability, and user-centric design. With its efficient engine, lightweight structure, automatic lubrication system, and essential safety features, it continues to be a favored choice among professionals needing a trusted tool for demanding cutting tasks. Those who invest in a PRO MAC 72 can expect not only impressive performance but also reliability that stands the test of time.