7. MAINTENANCE
7-1. Sharpening the saw chain
CAUTION: Before doing any work on the guide
protective gloves!
(Fig. 59)
The chain needs sharpening when:
Important: Sharpen frequently, but without removing too
much metal!
Proper sharpening:
CAUTION: Use only chains and guide bars designed for
(Fig. 60)
CAUTION: Excessive depth increases
the risk of kickback!
(Fig. 61)
30
80
75°
Files and how to work with them
. Always wear
Type 092 (91VG), 492 (91PX)
Type 290 (90SG), 291 (90PX)
(Fig. 62)
(Fig. 63)
(Fig. 64)
1
7-2. Cleaning the inside of the sprocket guard
CAUTION: Before doing any work on the guide bar or
Always wear protective gloves!
CAUTION: Start the chain saw only after having
assembled it completely and inspected.
(Fig. 65)
2
NOTE:
4
NOTE:
The chain brake is a very important safety device and
like any other component subject to normal wear and
tear.
Regular inspection and maintenance are important for
your own safety and must be done by a MAKITA service
center.
2
1
3
5
SERVICE
.