Husqvarna SP 375 Operator's Manual page 42

16
EN
Chain maintenance table
WARNING!
are shown in the "EC Conformity Statement" provided. Do not use other types of chains or bars
for safety reasons.
The table gives the sharpening data for different types of chains, but this does not mean you
can use different chains from the homologated one.
Chain pitch
inches
3/8 Mini
0.325
3/8
0.404
Sharpen the chain as follows (Fig. 24):
– Switch off the engine, release the chain brake
and secure the bar with the chain in a vice so that
the chain can run smoothly.
– Tighten the chain if it is loose.
– Mount the file in the guide and then insert it in the
tooth at a constant angle from the cutting edge.
– Sharpen in a forward motion a few times and re-
peat this on all the cutting edges facing the same
way (right or left).
– Turn the bar over in the vice and repeat on all the
other cutting edges.
– Check that the limiter tooth does not stick out fur-
ther than the inspection instrument and file any
projecting parts with a flat file, rounding off the
edge.
– After sharpening, remove all traces of filing and
dust and lubricate the chain in an oil bath.
Replace the chain whenever:
– The length of the cutting edges reduces to 5
mm or less;
– There is too much play between the links and the
rivets.
BAR MAINTENANCE (Fig. 25)
To avoid asymmetrical wear on the bar, make sure
it is turned over periodically.
The specifications of the chain and the bar homologated for this machine
Limiter tooth level (a)
mm inches
9.32 0.018
8.25 0.026
9.32 0.026
10.26 0.031
MAINTENANCE AND STORAGE
a
mm
0.45
0.65
0.65
0.80
To keep the bar in perfect working order, proceed
as follows:
– grease the bearings on the nose sprocket (if
present) with the syringe;
– Clean the bar groove with the scraper (not in-
cluded);
– clean the lubrication holes;
– with a flat file, remove burr from the edges and
level off the guides.
Replace the bar whenever:
– the groove is not as deep as the height of the
drive links (which must never touch the bottom);
– the inside of the guide is worn enough to make
the chain lean to one side.
EXTRAORDINARY MAINTENANCE
All maintenance operations not foreseen in this
manual must be performed exclusively by your
dealer.
All and any operations performed in unauthorised
centres or by unqualified persons will totally inval-
idate the warranty.
STORAGE
After every work stint, clean the machine thor-
oughly to remove all dust and debris, and repair or
replace any faulty parts.
The machine must be stored in a dry place away
from the elements and with the bar cover correctly
fitted.
File diameter (d)
d
inches mm
5/32 4.0
3/16 4.8
13/64 5.2
7/32 5.6