Owner's Manual

MS 251, MS 251 C
English
53
Saw chains with humped drive link (2) –
upper part of the humped drive link (2)
(with service mark) is lowered at the
same time as the depth gauge of the
cutter.
WARNING
The rest of the humped drive link must
not be filed; otherwise, this could
increase the tendency of the chain saw
to kick back.
N Rework the depth gauge so that it is
flush with the file gauge
N Afterwards, dress the leading edge
of the depth gauge parallel to the
service mark (see arrow) – when
doing this, be careful not to further
lower the highest point of the depth
gauge
WARNING
Depth gauges that are too low increase
the kickback tendency of the chain saw.
N Lay the file gauge on the saw chain
– the highest point of the depth
gauge must be flush with the file
gauge
N After sharpening, clean the saw
chain thoroughly, removing any
filings or grinding dust – lubricate
the saw chain thoroughly
N In the event of extended periods of
disuse, store saw chains in cleaned
and oiled condition
689BA051 KN
689BA044 KN
689BA052 KN
Sharpening tools (special accessories)
Chain pitch Round file ^ Round file File holder File gauge Taper square file Sharpening set
1)
Inches (mm) mm (Inches) Part number Part number Part number Part number Part number
1/4 P (6.35) 3.2 (1/8) 5605 771 3206 5605 750 4300 0000 893 4005 0814 252 3356 5605 007 1000
1/4 (6.35) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007 1027
3/8 P (9.32) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007 1027
0.325 (8.25) 4.8 (3/16) 5605 772 4806 5605 750 4328 1110 893 4000 0814 252 3356 5605 007 1028
3/8 (9.32) 5.2 (13/64) 5605 772 5206 5605 750 4329 1110 893 4000 0814 252 3356 5605 007 1029
0.404 (10.26) 5.5 (7/32) 5605 772 5506 5605 750 4330 1106 893 4000 0814 252 3356 5605 007 1030
1)
consisting of file holder with round file, taper square file and file gauge