AUSTART ATS83-2 Manuale di installazione e manutenzione - Pagina 11
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DISASSEMBLY
Refer to the Exploded View and Cross Sectional View drawings on pages 8 &10.
Begin by removing the two band clamps (8)
and separate the three sub-assemblies; the
nose assembly, the motor assembly and the
silencer assembly. Gently tap the assemblies
with a soft hammer if necessary.
The sub assemblies may now be dismantled
separately. Disassembly of any of these three
sub-assemblies is detailed in the exploded
view on page 8 and is basically in the order
shown. Refer also to the following instructions:
NOSE ASSEMBLY
1. Remove screws (23), retainer (24), planet
gears (25) and bearings (26). If necessary
gently tap the three countersunk screws
(23)
to
2. Remove nine screws (43) and separate the
gear case (31) by gently tapping it with a
soft hammer if necessary.
3. Remove the two countersunk screws (32).
The bearing housing (34) should spring
apart from the nose assembly. Gently tap
the nose housing (44) with a soft hammer to
assist it to separate if necessary.
4. Remove spring (41), drive assembly (40)
and piston (37).
5. Remove circlip (22) using circlip pliers and
spider hub assembly (27).
6. Support bearing housing (34) in the vertical
position and gently press out drive shaft (39)
from bearing (29).
MAINTENANCE
!
loosen
them.
WARNING
7. Remove circlip (28) using circlip pliers and
press out bearing (29) and seal (30).
8. Remove nose bearing (46) and seal (45)
from nose housing (44).
1. Remove special nut (11) and washer (12).
Difficulty may be experienced and it will be
necessary to restrain the turbine rotor (13)
from turning by using a ring spanner
(wrench) on the special flats provided.
2. Remove circlip (21) using circlip pliers and
press out rotor shaft (19) through rotor (13)
as an assembly.
3. Press out seal sleeve (15) and bearings (18)
from turbine housing (14).
4. Press off bearing (20) from the rotor shaft
(19).
SILENCER ASSEMBLY
Remove the three nuts (1) and assembly will
easily come apart.
11