Leroy Somer LSA 49.1 4P Manuel D'utilisation Et D'entretien page 42

LEROY-SOMER
4.6.7 - Complete dismantling
- Take out the DE bearing (30) as described in section 4.6.6.
- Support the DE rotor (4) with a strap or with a support
constructed following the drawing below.
- Remove the NDE bearing ball bearing cover.
- Knock lightly on the shaft end on the opposite side from the
coupling using a small mallet.
- Move the strap as the rotor moves in order to distribute the
weight over it.
-Remove the NDE bearing following the instructions in
section 4.6.5.
4.6.8 - Reassembling the bearings
- Place the "O" ring seal (349) and the preloading wavy
washer (79) in the bearing seat (36).
- Position on the stator (1), bearings (30) and (36).
- Tighten screws (31) and (37).
- Tilt the inner bearing retainer (78) upwards in order to
lubricate the bearing.
- Tighten the 4 HM10 screws on the inner bearing retainer
(78).
- Fit the air intake grille (51).
- Replace the rear cross-member (269) and the rear panel
(365).
- Replace the connection plate assembly (281 + 270).
- Replace the connector link assembly (281 + 279).
- Replace the neutral link (278).
- Connect the stator connections (T1 to T12) and the sensing
wires.
- Refit the
panels (367) and
368) and the grilles
254 and 255).
Rotor
- Reconnect the
AVR.
- Refit the
lid of the
protective cover (48) and the
inspection door
of the AVR (466).
18
INSTALLATION AND MAINTENANCE
LSA 49.1 4P
ALTERNATORS
SERVICING - MAINTENANCE
4.6.9 - Reassembling the rotor
On single bearing machines :
- Slide the rotor into the stator and position it as shown in fig 24.
- Tilt the inner bearing retainer (78) upwards in order to
lubricate the bearing.
- Tighten the 4 HM10 screws on the inner bearing retainer (78).
- Fit the flange and check that the machine assembly is
correctly mounted and that all screws are tightened.
On two-bearing machines :
- Slide the rotor into the stator and position it as shown in the
figure above.
- Tilt the inner bearing retainer (78) upwards in order to
lubricate the bearing.
- Tilt the inner bearing retainer (68) upwards in order to
lubricate the bearing.
- Tighten the 4 HM10 screws on the inner bearing retainer (68
and 78).
- Fit the circlips (284).
- Check that the machine assembly is correctly mounted and
that all screws are tightened.
NOTE : If the rotor has been fully rewound, it must be
rebalanced.
After operational testing, replace all access panels or
covers.
4.6.10 - Dismantling and reassembly of the filters
- Remove the grille (417) then take out the filter (418) as
shown below. Change the filter, if necessary, please refer to
section 4.2.5 for cleaning the filter. To replace follow
instructions in reverse order.
NDE shield
Threaded rod
Ref. 3007 GB - 4.33/a - 10.00
51
418
417