Assemble The Guide Bar And The Chain; Adjust The Chain Tension; Sharpen The Cutters; Guide Bar Maintenance - GreenWorks G40PSF Bedienungshandbuch

WARNING
Remove the battery pack from the machine before
maintenance.
4.1 ASSEMBLE THE GUIDE BAR AND
THE CHAIN
Figure 10-14.
1. Remove the battery pack from the machine.
2. Remove the chain cover nuts with the wrench.
3. Remove the chain cover.
4. Put the chain drive links into the bar groove.
5. Put the chain cutters in the direction of the chain
operation.
6. Put the chain in position and make sure that the loop is
behind the guide bar.
7. Hold the chain and bar.
8. Put the chain loop around the sprocket.
9. Make sure the chain tension pin hole on the guide bar fits
correctly with the bolt.
10. Install the chain cover.
11. Tighten the chain. Refer to Adjust the chain tension.
12. Tighten the nuts when the chain is well tensioned.
If you start the chain saw with a new chain, have a test for
2-3 minutes. After that, examine the tension again and
tighten the chain if necessary.
4.2

ADJUST THE CHAIN TENSION

Figure 10.13.14
CAUTION
Wear protective gloves if you touch the chain, bar or areas
around the chain.
1. Loosen the chain cover by turning the chain cover knob
counterclockwise.
It is not necessary to remove the chain cover to adjust the
chain tension.
2. Turn the chain tension screw behind the bar and chain
clockwise to increase the chain tension.
3. Turn the chain tension screw counterclockwise to
decrease the chain tension.
4. When the chain is at the wanted tension, tighten the chain
cover.
NOTE
NOTE
English
4.3

SHARPEN THE CUTTERS

Sharpen the cutters if it is not easy for the chain to go into the
wood.
We recommend that a service center, which has an electric
sharpener, perform important sharpening work.
Figure 15-18.
1. Tensioning chain.
2. Sharpen the cutters corner with a 5/32 in. (4 mm)
diameter round file .
3. Sharpen the top plate, side plate and depth gauge with a
flat file.
4. File all the cutters to the specified angles and the same
length.
During the process,
• Keep the file flat with the surface to be sharpened.
• Use the midpoint of the file bar.
• Use light but firm pressure when sharpening the
surface.
• Lift the file away on each return stroke.
• Sharpen the cutters on one side and then move to the
other side.
Replace the chain if:
• The length of the cutting edges is less than 5 mm.
• There is too much space between the drive links and the
rivets.
• The cut speed is slow
• Sharpening the chain many times but it does not increase
the cutting speed. The chain is worn.
4.4

GUIDE BAR MAINTENANCE

Figure 19-20.
Make sure that it is turned over periodically to keep
symmetrical wear on the bar.
1. Lubricate the bearings on the nose sprocket (if present)
with the syringe (not included).
2. Clean the bar groove with the scraping hook (not
included).
3. Clean the lubrication holes.
4. Remove burr from the edges and level the cutters with a
flat file.
Replace the bar if:
• the groove is not fit with the height of the drive links
(which must never touch the bottom).
7
NOTE
NOTE
NOTE
EN