Raider RD-ECS22 User Manual page 21

Firmly tighten guide bar fixing screw (12) while holding the guide bar tip.
Prior to guide bar and chain installation ensure that position of chain cutting blades is
appropriate (correct position of the chain on the guide bar is shown on the tip of the guide bar).
Always wear protective gloves during checks and installation of the chain to prevent cuts from
sharp edges of the chain.
New chain requires start-up period, which lasts approximately 5 minutes. Chain lubrication
is very important in this phase. Check chain tension after start-up period and readjust if
necessary.
Check and adjust the chain tension frequently. Too loose chain can easily slide off the guide
bar, quickly wear out or quickly wear out the guide bar.
3.3. Filling saw tank with oil.
Oil tank in new chain saw is empty. Fill the tank with oil prior to first use.
Unscrew oil filler plug (5).
Pour in oil (be careful to avoid contamination of oil during filling of the tank).
Screw oil filler plug (5).
Do not use oil that has been already used or regenerated, as this may damage the oil pump.
Use SAE 10W/30 oil for the whole year or SAE 30W/40 in summer and SAE 20W/30 in winter.
4. Operation and settings
4.1. Switching on. Switching off.
The mains voltage must match the voltage on the rating plate of the saw. Hold the chain saw
with both hands when starting up
and during operation. Switching on - press the switch lock button (4) and then switch button
(1). In case the chain saw does not start, release the brake lever (7).
4.2. Switching off - release pressure on the switch (1). Release pressure on the switch
button (1) to stop the chain saw. Strong sparking on the commutator may appear. This is
normal and safe for chain saw operation.
When switched on, the chain saw starts to work with full speed.
4.3. Checking chain lubrication.
Check lubrication of the chain and oil level in the tank before starting to work. Switch on the
saw and hold it above ground. If you see enlarging oil marks, the chain lubrication works well.
If there are no oil marks or they are very small, clean oil outlet, upper hole of chain tension and
oil way or contact service.
Depending on ambient temperature and amount of oil supplied, you can operate the chain
saw for 15 to 40 minutes per one filling the oil tank.
4.4. Chain lubricants.
Durability of chain and guide bar depends heavily on quality of lubricant. Use only lubricants,
which are designed for chain saws.
Never use regenerated or previously used oil for chain lubrication.
4.5. Chain guide bar.
Guide bar (9) is exposed to heavy wear especially in tip and bottom part. To prevent side
wear due to friction, it is recommended to turn over the guide bar every time the chain is
sharpened. Clean the guide bar groove and oil holes on that occasion. Guide bar groove is
rectangular. Check the groove against wear. Put rule to guiding strip and outer surface of a
chain tooth. If you observe distance between, the groove is correct. Otherwise the guide bar is
worn out and needs to be replaced.
4.6. Chain wheel.
Driving chain wheel is subject to especially heavy wear. Replace the chain wheel when you
observe clear signs of wear of wheel teeth. Worn chain wheel additionally reduces durability of
chain. Chain wheel should be replaced by authorized service workshop.
4.7. Chain brake.
The saw features automatic brake, which stops the chain in case of recoil during chain
saw operation. The brake engages automatically when force of inertia is applied to a weight
located inside the brake casing. The chain brake can also be switched on manually, when the
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