The chain brake should snap into both positions.If strong resistance is felt or lever does not move into either position, DO NOT USE YOUR SAW.

Take it immediately to an authorized servicing dealer.

3CHAIN CATCHER

This unit is fitted with a chain catcher below the drive spocket. This is intended to stop the rearward movement of th chain in case of breakage or if it should come out of the bar, It should never be removed.

LCHAIN SHARPENING

1The cutter teeth should be sharpened with a round 7/32" file.

The job can be made easier by also using a file holder.

The chain can remain fitted on the bar during sharpening.

Before commencing, the chain should be tensioned correctly and the chain brake should be activated to prevent the chain from moving.

2To obtain a correct sharpening the file must be carefully held to maintain 3 basic angles:

–

A Top angle

30

° - 35 °

–

B External,side angle

85

° - 90 °

–

C Internal, side angle

60

°.

File in one direction only, from the “inside” of the cutter tooth towards the “outside”.

Do not allow the file to touch the chain as you bring it back to re-position it. Each cutter tooth should be filed with the same number of strokes.

3The file should be held horizontally to the cutter tooth being sharpened.

4Best results to obtain a precise sideways angle can be obtained by holding the file so that it rises 0,5 mm above the top face of the cutter tooth.

5DEPTH GAUGE

Correct depth gauge height is vital to ensure maximum chain life and cutting efficiency. The height of the depth gauge should be lowered as the cutter tooth is filed back; this height should be checked every 4 or 5 sharpenings.

The best way to do this is to use a flat file and a depth gauge tool.

The correct setting is 0.65 mm below the top edge of the cutter tooth.

The cutter tooth depth gauge should then be rounded (D).

FAULT FINDING TABLE

Engine runs badly

 

The machineruns

or looses power

Engine will not start

butdoes not cut

when cutting

 

well

Check STOP switch is in the position I

Control fuel level min. 25% tank capacity

Check air filter is clean

Remove spark plug ,dry it, clean it and adjust it, and replace it, if necessary

Control and adjust the carburetor screws if necessary

Change fuel filter. Contact your dealer

Carefully follow the cutting accessory assembly instructions

Check metal cutting accessory is sharp

Otherwise, contact your dealer

Engine still gives trouble: contact your dealer.

8

Page 12 Page 14
Page 13
Image 13
McCulloch PRO MAC 72 manual Fault Finding Table, Chain Catcher, Depth Gauge
Page 12 Page 14

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.
Top Page Image Contents