Corrective Action; Maintenance And Cleaning - Bosch UniversalChain 35 Manual Original

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When the log is supported along its entire length, it is cut
from the top (overbuck).
When the log is supported on one end, cut 1/3 the diameter
from the underside (underbuck).
When the log is supported on both ends, cut 1/3 the dia-
meter from the top overbuck. Then make the finished cut by
underbucking the lower 2/3 to meet the first cut.
Troubleshooting
The following chart lists problem symptoms, possible causes and corrective action, if your machine does not operate properly.
If these do not identify and correct the problem, contact your service agent.
Warning: Switch off and remove plug from mains be-
u
fore investigating fault.
Problem
Possible Cause
Chain saw fails to oper-
Kickback brake is activated
ate
Plug not connected
Mains socket faulty
Fuse faulty / blown
Extension cable damaged
Chain saw operates in-
Mains cable defective
termittently
External or internal wiring defect
On/Off switch (2) defective
Saw chain dry
No oil in reservoir
Vent in oil filler cap (14) clogged
Oil passage clogged
Brake does not stop
Kickback brake/run-down brake defective
saw chain
Saw chain/guide bar
No oil in reservoir
hot
Vent in oil filler cap (14) clogged
Oil passage clogged
Chain tension too high
Dull saw chain
Chain saw rips, vi-
Chain tension too loose
brates, does not saw
Dull saw chain
properly
Chain worn out
Chain teeth are facing in the wrong direction

Maintenance and Cleaning

Warning! Switch off and remove plug from mains be-
u
fore adjusting or cleaning. The same applies when the
mains cable is damaged, cut or entangled.
If the replacement of the supply cord is necessary, this has
to be done by Bosch or an authorized Bosch service agent in
order to avoid a safety hazard.
Bosch Power Tools
When bucking on a slope, always stand on the uphill side of
the log. When "cutting through", release the cutting pressure
near the end of the cut without relaxing your grip on the
chain saw handles in order to maintain complete control.
Don't let the chain contact the ground. After completing the
cut, wait for the saw chain to stop before you move the chain
saw. Always stop the chain saw motor before moving from
tree to tree.

Corrective Action

Pull back the activation lever for kickback brake
(4) to position ➊, so that the white dot is on the
"I" symbol.
Connect plug
Use another socket
Replace fuse
Try without extension cable
Check mains cable and have it replaced, if re-
quired
Contact your Bosch Service Centre
Contact your Bosch Service Centre
Refill oil
Clean oil filler cap (14)
Clean oil passage
Contact your Bosch Service Centre
Refill oil
Clean oil filler cap (14)
Clean oil passage
Tension saw chain
Sharpen saw chain or replace
Tension saw chain
Sharpen saw chain or replace
Replace saw chain
Reassemble with chain in correct direction
Note: To ensure long and reliable service, carry out the fol-
lowing maintenance regularly.
Regulary check the chain saw for obvious defects such as
loose, dislodged or damaged saw chain and chain bar, loose
fixings and worn or damaged components.
When disassembling the saw chain, take care that the chain
is first loosened with the chain tensioning ring (11). Disas-
sembly of the chain saw without first loosening the saw chain
can damage the chain saw.
English | 21
F 016 L81 829 | (28.11.2019)

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