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16
Regularly inspect the bearing surfaces of the guide bar for
damage, and clean them with a suitable tool.
If the saw is used intensively it will be necessary to lubricate the
return sprocket bearings regularly (once a week). To do this,
first thoroughly clean the 2 mm hole at the tip of the guide bar,
and then press in a small amount of multi-purpose grease.
Multi-purpose grease and grease guns are available as acces-
sories.
Multi-purpose grease (order no. 944 360 000)
Grease gun (order no. 944 350 000)
Replacing the saw chain
CAUTION: Use only chains and guide bars designed for
this saw (see the Extract from the spare-parts list)!
- After having sharpened the chain, the height of the depth
limiter must be checked by means of a chain gauge. See
"Accessories" for the order number.
- Correct even the smallest excess height with a special flat
file (F). See "Accessories" for the order number.
- Round off the front of the depth limiter (G).
- The file holder makes file guidance easier. It is marked for
the correct 30° sharpening angle (keep the marks parallel
with the chain when filing, see illustration) and limits the cut
depth to the correct 4/5 of the file diameter. See "Accesso-
ries" for the order number.
E
F
30°
4/5
G
H
I
J
1
2
Check the sprocket (I/1) before mounting a new chain.
The sprocket is located underneath the clutch drum (I/2).
CAUTION:
Worn out sprockets (J) may damage the new chain and must
therefore be replaced.
Do not attempt to replace the sprocket yourself. Sprocket
replacement requires special training and tools and must be
done at a MAKITA service centre.
Malfunction
chain saw does not work
insufficient performance
no chain lubrication
Saw will not start
Cause
no power supply, cable defective
chain brake actuated
carbon brushes worn
oil tank empty,
oil guide groove dirty
oil-pump adjusting screw incorrectly adjusted
overload protection actuated (DES 380 only)
Trouble shooting
System
total
chain brake
carbon brushes
oil tank, oil pump
overload protection
Observation
electric motor does not
function
chain does not start
low pulling power
no oil on the saw chain
saw very warm, electric
motor not running
Cleaning the guide bar,
lubricating the sprocket nose
CAUTION:
Protective gloves must be worn.
16


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