Rewind Starter; Routine Maintenance; Rope Rotor - Stihl 020 T Service Manual

6.

REWIND STARTER

6.1

Routine Maintenance

If the action of the starter rope
becomes very stiff and the rope
rewinds very slowly or not com-
pletely, it can be assumed that the
starter mechanism is in order but
plugged with dirt. At very low outside
temperatures the lubricating oil on the
rewind spring may thicken and cause
the spring windings to stick together.
This has a detrimental
effect on the function of the starter
mechanism. In such a case it is
sufficient to apply a few drops of
paraffin (kerosine) to the rewind
spring.
Then carefully pull out the starter
rope several times and allow it to
rewind until its normal smooth
action is restored.
If clogged with dirt or pitch, the entire
starter mechanism, including the
rewind spring, must be removed and
disassembled. Take special care
when removing the spring.
Wash all parts in paraffin or white
spirit.
Lubricate the rewind spring and
starter post with STIHL special
lubricant, see 11.2, before installing.
STIHL 020 T
6.2

Rope Rotor

Troubleshooting chart - see 2.4.
• Take out the fan housing mount-
ing screws and remove the fan
housing.
Relieving tension of rewind spring:
• Pull out the starter rope about 5 cm
(2") and hold the rope rotor steady.
• While still holding the rope rotor
steady, take three full turns off the
rope rotor.
• Pull out the rope with the starter
grip and then let go of the rope
rotor.
Note: The rope rotor will spin back
and relieve the tension of the rewind
spring. The rewind spring will not be
under tension if the starter rope is
broken.
• Remove the rope from the rotor.
• Use a screwdriver or suitable
pliers to carefully remove the
spring clip from the starter post.
• Take the washer and rope rotor
with pawl off the starter post.
• Replace the worn or broken
starter rope - see 6.3.
• Coat the bore in the rope rotor
with STIHL special lubricant -
see 11.2.
Fit the rotor on the starter post
so that the inner spring loop
slides into the lug on the rotor.
Note: Check that the spring loop
has engaged by turning the rope
rotor slightly and letting it go -
it must spin back.
• Fit the washer (1) and install the
spring clip (2) in the starter post
groove.
Note: Make sure the spring clip
engages the pawl guide peg and
points it in the clockwise direction.
The spring clip must be treated very
carefully. If it is bent or twisted during
disassembly or assembly, the rewind
starter might malfunction.
• Tension the rewind spring -
see 6.5.
35