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30
Deutsch (Übersetzung der originalen Anleitungen)
30
English (Original instructions)
WARNING
Never climb into a tree to limb or prune. Do not stand on
ladders, platforms, a log, or in any position which may
cause you to lose your balance or control of the saw.
When pruning trees it is important not to make the
À
ush
cut next to the main limb or trunk until you have cut off
the limb further out to reduce the weight. This prevents
stripping the bark from the main member.
1. Underbuck the branch 1/3 through for your
¿
rst cut (A).
2. Overbuck the branch to drop it (B).
3. Finish by cutting smoothly and neatly against the main
member (C) so the bark will grow back to seal the
wound.
WARNING
If the limbs to be pruned are above chest height, hire a
professional to perform the pruning.
CUTTING SPRING POLES
A spring pole (A) 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
spring-poles; they are dangerous.
WARNING
Spring poles are dangerous and could strike the
operator causing the operator to lose control of the
chainsaw. This could result in severe or fatal injury to
the operator.
MAINTENANCE
REPLACING THE GUIDE BAR AND CHAIN
See
¿
gure 38 - 47.
DANGER
Never start the engine before installing the guide bar,
chain, drivecase cover, and clutch drum. Without all
these parts in place, the clutch can
À
y off or explode,
exposing the user to possible serious injury.
WARNING
To avoid serious personal injury, read and understand
all the safety instructions in this section.
1. Always place the switch in the stop “O” position before
you work on the saw.
2. Make sure the chain brake is not set by pulling the
chain brake lever/hand guard towards the front handle
to the run position.
3. Wear gloves when handling the chain and bar. These
components are sharp and may contain burrs.
4. Press in on the clutch cover lock knob and rotate
counter clockwise until the clutch cover can be
removed.
5. Remove the bar and chain from the mounting surface.
6. Remove the old chain from the bar.
7. Lay out the new saw chain in a loop and straighten any
kinks. The cutters should face in the direction of chain
rotation. If they face backwards, turn the loop over.
8. Place the chain drive links into the bar groove.
9. Position the chain so there is a loop at the back of
the bar.
10. Hold the chain in position on the bar and place the loop
around the sprocket.
11. Fit the bar
À
ush against the mounting surface so that
the bar studs are in the long slot of the bar.
12. Replace the clutch cover, ensuring that the adjusting
pin in the clutch cover is in the bar chain tensioning
pin hole.
13. Replace the clutch cover and rotate clutch cover lock
knob just enough to hold the cover in position.
NOTE:
The bar must be free to move for tension
adjustment.
14. Remove all slack from the chain by rotating the chain
tensioning dial clockwise until the chain seats snugly
against the bar with the drive links in the bar groove.
15. Lift the tip of the guide bar up to check for sag.
16. Release the tip of the guide bar and turn the chain
tensioning dial clockwise. Repeat this process until
sag does not exist.
17. Hold the tip of the guide bar up and tighten the clutch
cover lock knob securely. The chain is correctly
tensioned when there is no sag on the underside of
the guide bar, the chain is snug, but it can be turned
by hand without binding. Ensure that the chain brake
is not set.
NOTE:
If chain is too tight, it will not rotate. Loosen
the clutch cover lock knob by pressing in and slightly
rotating counter clockwise, then rotate the chain
tensioning dial counter clockwise. Lift the tip of the
guide bar up and retighten the clutch cover lock knob
securely. Ensure that the chain will rotate without
Summary of Contents for RCS4640C
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Page 256: ...254 51 52 1 2 Ryobi Ryobi 53 56 A B C D E F G 1 2 3 4 4 5 6 7 8 57 30 30 30...
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Page 417: ...415 A B C 33 A 34 35 D C E 1 3 2 3 F G 19 A B 36 1 1 3 A 2 B 3 C...
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