Racing RAC49CS4T, Руководство пользователя

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6.1 ASSEMBLY OF THE CHAIN BAR AND CHAIN TO THE ENGINE
UNIT
Do not start the engine until the saw is fully assembled.
Always wear protective gloves when handling the chain.
1) Remove the side cover (Fig. 2)
a) Make sure the chain brake lever / front hand guard (3) is pulled back into the DISENGAGED position.
b) Remove the bar mounting nuts (11) with the spark plug spanner (19).
c) Pull the whole side cover (A) from the engine.
2) Fit the chain bar (Fig. 2 / 3)
To ensure that the bar and the chain are supplied with oil, USE ONLY THE ORIGINAL BAR . The oiling
hole (C) must be kept clear of dirt and any build-up of residue.
a) Make sure the chain brake lever / front hand guard (3) is pulled back into the DISENGAGED position.
b) Fit the open end of the chain bar (1) over the bar pins (D).
3) To install the saw chain (Fig. 2 / 3 / 4)
a) Spread the saw chain (2) out in a loop with the cutting edges pointing CLOCKWISE around the loop.
b) Slip the saw chain (2) around the sprocket behind the clutch as shown in figure 3. Make sure the links
fit between the sprocket teeth.
c) Guide the drive links into the groove and around the end of the chain bar (1).
The saw chain may droop slightly on the lower part of bar.
This is normal.
•
Pull the chain bar (1) forward until the saw chain (2) is closely seated. Make sure that all the drive links
are in the groove of the chain bar (1).
•
Align the pin (F) at the inner side of the side cover (A) such that the fits into the hole of the chain bar (E).
•
Turn the bar fastening pin (B) clockwise with the spark plug spanner (19). The saw chain (2) is not
allowed to slip off the chain bar (1) when you do this. Only loosely tighten the bar fastening pin (B) at this
stage and then follow the instructions for adjusting the chain tension as described in the section.
4) Adjusting the chain tension
The correct tension of the saw chain is extremely important and must be checked before starting and
periodically during all sawing work. If you take time to adjust the saw chain correctly, you will be able to make
better cuts and the life of the chain will be prolonged.
a) Hold the tip of the chain bar (1) upwards and turn the bar fastening pin (Fig. 2/ pos. B) with the spark plug
spanner (19) in a CLOCKWISE DIRECTION in order to increase the chain tension. If you turn the bar
fastening pin (Fig. 2/pos. B) in an ANTI-CLOCKWISE DIRECTION, the chain tension will be reduced.
Check that the chain is seated around the entire chain bar (Fig. 5/pos. X3).
b) After making the adjustment and with the tip of the bar still upwards, tighten the bar fastening pin (Fig.
2/pos. B). The chain is correctly tensioned when it is closely seated and can be pulled right around by
hand, when the chain brake lever (3) is released.
Always wear high-strength gloves when handling or adjusting the saw chain.
If the chain is hard to turn around the chain bar or jammed, it is too tightly tensioned. Make the following small
adjustments:
•
Undo the bar fastening pin (Fig. 2/pos. B) by 1/2 of a turn ANTI-CLOCKWISE . Then slacken the chain
tension by slowly turning the bar fastening pin (Fig. 2/pos. B) in an ANTI-CLOCKWISE DIRECTION and
then pull the saw chain (2) back and forth on the chain bar (1) (Fig. 6). Continue until the chain can be
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