5 Repair instructions
5.1 To clean and examine the product parts
• Clean and examine all parts fully. You find more
instructions in the chapter for each part if special
tools or procedures are necessary.
• Replace damaged or defective parts.
• Always use original spare parts.
5.2 To replace the guide bar bolt
Note: Make sure that the guide bar bolt and the washer
for the guide bar bolt are put correctly in the crankcase.
1. Disassemble the drive wheel cover, saw chain and
guide bar. See
To remove the drive wheel cover and
guide bar on page 9
.
2. Empty the chain oil tank.
3. Hit the worn guide bar bolt to make it fall into the
chain oil tank.
4. Move the guide bar bolt (B) and its washer (A) from
the chain oil tank.
5. Put the guide bar bolt washer (A) on the guide bar
bolt (B).
6. Put them into the chain oil tank with pliers and
through the hole in the crankcase.
7. Pull out the guide bar bolt with a nut. Put a spacer
between the nut and the crankcase.
8. Assemble the crankcase. See
To assemble the
crankcase on page 9
9. Fill with chain oil.
5.3 To replace the chip guard
Note: Always replace a worn chip guard with a new one.
1. Disassemble the drive wheel cover, saw chain and
bar.
2. Remove the screw and replace the chip guard.
5.4 To replace the chain oil cap
1. Empty the chain oil tank.
2. Put a combination wrench in the groove in the cap.
3. Turn the wrench counterclockwise.
4. Replace the damaged cap with a new cap.
5.5 To repair damaged threads
1. If the plastic threads in the chassis are damaged,
make a hole with a 4.5 mm drill bit.
2. Replace the original screw with the screw 503 21
74-16 - IHSCT MT5x16.
8 - Repair instructions 539 - 003 - 05.12.2018
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