
32
28. Starter motor, alternator and
fuses
NOTE! Disconnect both battery cables before carrying
out any work on the electrical system.
Starter motor, checking brushes and commutator
This check should be carried out after every 1200 hours of
operation.
Disconnect the starter motor cables and remove the starter
motor. Take off the starter motor protective cover. Lift the
brush springs and pull out the brushes. These should run
easily in their holders. Clean dirty or sticking brushes with a
cloth moistened with petrol (gasoline). Replace damaged
or worn brushes. If the commutator is scored, oval or burnt,
the starter motor should be reconditioned by authorized
service personnel. Check the tension of the brush springs
by using a spring balance. The spring force should be ap-
prox. 12-14N (1.2-1.4 kp = 2.6-3.1 lbf). Replace faulty
springs.
Alternator, checking brushes and slip rings.
The check should be carried out after every 1200 hours of
operation.
Small alternator
Clean the alternator externally. Unscrew the nuts on both
terminals on the alternator end cover (one of the terminals
is marked DF).
Remove the cover and unscrew both the brush holder
screws. Carefully lift out the brush holder taking care not to
damage the brushes.
Check that the brushes run easily in their holders and that
at least 5 mm of the brushes project and that the brush ca-
bles are not damaged and are well soldered. If necessary,
replace the complete brush holder including the brushes. If
the slip rings are scored, they should be rectified by autho-
rized service personnel.
Large alternator (1600W. Optional equipment)
Clean the alternator externally. Check that the ventilation
holes in the front end are open.
Remove the cover, the casing and the brush cap at the rear
end of the alternator. Remove the screws retaining the
brush cap and then carefully bend up the cap. Note the
rubber gasket.
Check that the length of the brushes is at least 8 mm and
that they run easily in their holders. Check that the brush
cables are undamaged and well secured.
Check that the brush spring force is 2.3-2.8N (0.23-0.28 kp
= 0.5-0.6 lbf).
Also check the slip rings. Scored or corroded slip rings
must be rectified by authorized service personnel.
If it is necessary to replace the brushes, loosen the connec-
tion screws, lift up the springs and pull out the brushes. As-
sembly is carried out in reverse order.
Содержание AQD70C
Страница 1: ...INSTRUCTIONBOOK TAMD60A B TAMD70C D AQD70C D ...
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