PrimAster PMAKS 40, Original Instructions Manual

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loose section from the work area. Follow the correct 

tree felling procedure after you have removed the large 

buttress roots.

Limbing a tree

Limbing is removing the branches from a fallen tree. 

When limbing, leave larger lower limbs to support the 

log off the ground. Remove the small limbs in one cut. 

Branches under tension should be cut from the bottom 

up to avoid bindingthe chain saw.

Bucking a log

Bucking is cutting a log into lengths. It is important to 

make sure your footing is firm and your weight is evenly 

distributed on both feet. When possible, the log should 

be raised and supported by the use of limbs, logs or 

chocks.
Follow the simple directions for easy cutting. When the 

log is supported along its entire length, it is cut from the 

top (overbuck).
When the log is supported on one end, cut 1/3 the 

diameter from the underside (underbuck). Then make the 

finished cut by overbucking to meet the first cut.
When the log is supported on both ends, cut 1/3 the 

diameter from the top (overbuck). Then make the finished 

cut by underbucking the lower 2/3 to meet the first cut.
When bucking on a slope always stand on the uphill side 

of the log. To maintain control when “cutting through”, 

release the cutting pressure near the end of the cut 

without relaxing your grip on the chain saw handles. 

Don’t let the chain contact the ground. After completing 

the cut, wait for the saw chain to stop before you move 

the chain saw. Always stop the motor before moving from 

tree to tree.

Cutting springpoles

A springpole is any log, branch, rooted stump, or sapling 

which is bent under tension by other wood so that it 

springs back if the wood holding it is cut or removed.
On a fallen tree, a rooted stump has a high potential of 

springing back to the upright position during the bucking 

cut to separate the log from the stump. Watch out for 

springpoles—they are dangerous.

 WARNING 

Springpoles are dangerous and could strike the 

operator, causing the operator to lose control of the 

chain saw. This could result in severe or fatal injury 

to the operator. This should be done by trained 

users.

Additional safety warnings

Some regions have regulations that restrict the use of the 

machine. Check with your local authority for advice.
Never allow children or people unfamiliar with the 

instructions to use the machine. Local regulations may 

restrict the age of the operator.
Ensure before each use that all controls and safety 

devices function correctly. Do not use the machine if the 

“off” switch does not stop the motor.
Do not wear loose fitting clothing, short trousers, or 

jewellery of any kind.
Secure long hair so it is above shoulder level to prevent 

entanglement in moving parts.
Beware of thrown, flying, or falling objects. Keep all 

bystanders, children, and animals at least 15 m away from 

the work area.
Do not operate in poor lighting. The operator requires a 

clear view of the work area to identify potential hazards.
Use of hearing protection reduces the ability to hear 

warnings (shouts or alarms). The operator must pay extra 

attention to what is going on in the work area.
Operating similar tools nearby increases both the risk 

of hearing injury and the potential for other persons to 

enter your work area.
Keep firm footing and balance. Do not overreach.
Overreaching can result in loss of balance and can 

increase the risk of kickback.
Keep all parts of your body away from any moving part.
Inspect the chain saw before each use. Check for correct 

operation of all controls, including the chain brake. Check 

for loose fasteners, make sure all guards and handles are 

properly and securely attached. Replace any damaged 

parts before use.
Do not modify the machine in any way or use parts 

and accessories which are not recommended by the 

manufacturer.

  WARNING 

If the machine is dropped, suffers heavy impact or 

begins to vibrate abnormally, immediately stop 

the machine and inspect for damage or identify 

the cause of the vibration.Any damage should be 

properly repaired or replaced by an service station.

Residual Risk

•  Even when the product is used as prescribed, it is still 

impossible to completely eliminate certain residual 

risk factors. The following hazards may arise in use and 

the operator should pay special attention to avoid the 

following:

•  Injury caused by vibration 

Always use the right tool for the job. Use designated 

handles. Restrict working time and exposure.

•  Damage to hearing due to exposure to noise 

Wear hearing protection and limit exposure.

•  Injury caused by contact with exposed saw teeth of 

the chain

•  Injury caused by thrown-out pieces of the workpiece 

(wood chips, splinters)

•  Injury caused by dust and particles
•  Injury to the skin caused by contact with lubricants

EN

   ENGLISH