Step 3 - Fuel And Lubrication - Oregon Qualcast PC40 Operation And Maintenance Manual

Preparing to Operate the Chainsaw
Step 2 - Assembly instructions
WARNING: The purpose of the chain brake is to reduce the possibility of injury due to kickback;
however, it cannot provide the intended measure of protection if the saw is operated carelessly.
Always test the chain brake before using your saw and periodically while on the job.
OFF
Fig. 6A
CAUTION: The brake lever 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 a Professional Service
Centre for repair.

Step 3 - Fuel and lubrication

Fuel
Use regular grade unleaded petrol mixed with 40:1 fully synthetic 2 stroke engine oil for best
results.Use mixing ratios in Section FUEL MIXING TABLE.
WARNING: Never use straight petrol in your unit. This will cause permanent engine damage and void
the manufacturer's warranty for that product. Never use a fuel mixture that has been stored for over
90 days.
WARNING: If 2-stroke lubricant other than fully synthetic is to be used, it must be a premium grade
oil for 2-stroke air cooled engines mixed at a 40:1 ratio. Do not use any 2-stroke oil product with a
recommended mixing ratio of 100:1. If insuf cient lubrication is the cause of engine damage, it voids
the manufacturer's engine warranty for that occurrence.
Mixing Fuel
Mix fuel with 2 stroke oil in an approved container.Use mixing table for correct ratio of fuel to oil. Shake
container to ensure thorough mix.
WARNING: Lack of lubrication voids engine warranty.
FUEL AND LUBRICATION
Oil Only
RECOMMENDED FUELS
Some conventional petrols are being blended with oxygenates such as alcohol or an ether compound
to meet clean air standards.Your engine is designed to operate satisfactorily on any petrol intended
for automotive use including oxygenated petrols.
CHAIN AND BAR LUBRICATION
Always re ll the chain oil tank each time the fuel tank is re lled.We recommend using Qualcast Chain,
Bar and Sprocket Oil, which contains additives to reduce friction and wear and to assist in the
prevention of pitch formation on the bar and chain.
10
ON
Fig. 6B
Petrol and Oil Mix 40:1
Customer Helpline
TO TEST CHAIN BRAKE:
1. The CHAIN BRAKE is DISENGAGED (chain
can move) when BRAKE LEVER IS PULLED
BACK AND LOCKED. Be sure the chain brake
latch is in the OFF position. (Fig. 6A)
2. The CHAIN BRAKE is ENGAGED (chain is
stopped) when brake lever is in forward position
and the chain brake latch is in the ON
position. You should not be able to move
chain. (Fig. 6B)
FUEL MIXING TABLE - 40:1
Petrol - Litre
1 litre
2 litre
5 litre
10 litre
0844 801 3652
Two-Stroke Oil - ml
25 ml
50 ml
125 ml
250 ml