Raider Pro RDP-SCHS20 User Manual page 29

main handle (3) a little down, support the bumper spike and finish the cut by lifting the main handle (3) a little.
4.15. Cutting a trunk lying on the ground.
Always keep good feet and ground grip. Do not stand on the trunk.
Watch out for possibility of the trunk rotation.
Observe manual guidelines related to work safety to avoid the chain saw recoil.
Always finish cutting at the side opposite to compressive stress to avoid pinching the chain in kerf.
Before starting to work check the stress direction in the trunk that is to be cut, to avoid pinching chain of the saw.
To eliminate stress, the first cut should be made at the tension side.
When cutting a trunk that is lying on the ground, first make a cut deep 1/3 of the trunk diameter, then turn the trunk
over and finish cutting at the opposite side.
When cutting a trunk that is lying on the ground, do not allow to sink the cutting chain into the ground under the trunk.
Negligence may cause immediate damage to the chain.
When cutting trunk that is lying on the slope, the operator should always be at the slope side above the trunk.
4.16. Cutting a trunk lifted above the ground.
In case the log is supported or placed on stable sawing horse, depending on the place of operation, make the cut 1/3
of the trunk diameter deep on the side under tension and finish cutting on the opposite side.
4.17. Trimming and cutting bushes and tree branches.
Start cutting branches of a felled tree at its base and continue towards top of the tree. Do small branches with a
single cut.
First, check which way the branch bends. Then make a cut from the inside of the bend and finish cutting on the
opposite side. Be careful, the branch being cut may spring back.
When trimming tree branches, always cut downward to enable free fall of cut branch. However, sometimes
undercutting the branch from the bottom may be helpful.
Be very careful when cutting a branch that may be under stress. Such branch may spring aside and hit the operator.
Do not cut branches when climbing up the tree. Do not stand on ladder, platforms, logs or positions that may cause
loss of balance and control over the chain saw. Do not cut above level of your shoulders. Always hold the chain saw
with both hands.
4.18. Safe work with chain saw.
Never use the chain saw during rain and in moisture. Never use damaged power cord. All parts should be assembled
properly and fulfill requirements that ensure safe chain saw operation. Any damaged protective part should be repaired
or replaced immediately.
5. Operation and maintenance.
5.1. Storage.
Pay special attention to keep the ventilation holes of the engine casing pervious.
Clean plastic parts with mild detergent and a sponge.
You can proceed with maintenance actions only described within this instruction manual. Any other action can be
carried out only by authorized service.
Do not make any changes in chain saw construction.
When not in use, chain saw should be stored clean, on flat surface, in dry place and beyond reach of children.
5.2. Guide bar and saw chain.
Check condition of the guide bar and chain every 5 hours of the saw operation.
Remove the casing and disassemble guide bar (7) and chain (8).
Clean oil holes and groove in the guide bar (7).
Lubricate tip chain wheel of the guide bar through the hole located on the guide bar tip.
Check condition of the chain (8).
5.3. Chain sharpening.
Pay attention to cutting tools. Cutting tools should be sharp and clean, it allows efficient and safe operation. Operating
the saw with blunt chain causes quick wear of the chain, guide bar and driving chain wheel, and breaking the chain in the
worst case. That is why it is important to sharpen the chain on time.
Chain sharpening is a complex operation. Sharpening the chain by yourself requires use of special tools and skills. It
is recommended to entrust sharpening the chain to qualified persons.
All faults should be repaired by service workshop authorized by the RAIDER.
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