Leroy-Somer LSA 40-4 POLE, Руководство по установке и обслуживанию

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LEROY-SOMER
InstallatIon and maIntenance
LSA 40 - 4 POLES
ALTERNATORS
4455 en - 10.2009 / a
Dismantling, reassembly 4.6 -
(see sections
5.4.1. & 5.4.2)
During the warranty period, this operation must only
be carried out in an approved workshop or in our
factory, otherwise the warranty may be invalidated.
Whilst being handled, the alternator must remain
horizontal (rotor not locked when moved). Check
how much the alternator weighs (see 4.7) before
choosing the lifting method.
The choice of lifting hooks or handles should be
determined by the shape of the lifting rings.
Tools required 4.6.1 -
To fully dismantle the machine, we recommend using the tools
listed below:
- 1 ratchet s extension
- 1 torque wrench
- 1 x 8 mm flat spanner
- 1 x 10 mm flat spanner
- 1 x 12 mm flat spanner
- 1 x 8 mm socket
- 1 x 10 mm socket
- 1 x 13 mm socket
- 1 TORX T20 bit
- 1 TORX T30 bit
- 1 puller (eg. Facom: U35)
- 1 puller (eg. Facom: U32/350).
Screw tightening torque 4.6.2 -
IdentIFIcatIon Screw Ø Torque N.m
Field screw m6 10 N.m
Diode bridge screw m5 4 N.m
tie rod M8 20 N.m
Foot earth screw m6 5 N.m
Balancing bolt m5 4 N.m
Disc/shaft screw m10 66 N.m
Guard screws m5 4 N.m
Cover screws m5 3.6 N.m
The screws for fixing the feet on the housing and
immobilising the stator must not be removed.
(bolt of the stator lower)
Access to connections and the 4.6.3 -
regulation system
The terminals and AVR are accessed directly by removing the
terminal box lid (41).
Accessing, checking and replacing the 4.6.4 -
diode bridge
Dismantling 4.6.4.1 -
- Remove the terminal box lid [41].
- Cut the fixing clamps of the exciter cables, disconnect E+,
E- from the exciter.
- Remove the 4 nuts on the tie rods.
- Remove the NDE shield [36] using a puller: eg. U.32 - 350
(Facom).
- Unsolder the connections.
- Check the bridge using an ohmmeter or a battery lamp (see
section 4.5.).
Reassembly 4.6.4.2 -
- Replace the bridges, respecting the polarity (see section
4.5.1).
- Resolder the connections.
- Fit a new o ring seal in the shield.
- Refit the NDE shield and pass the bundle of wires between
the top bars of the shield.
- Replace the fixing clamps on the cables.
- Replace the terminal box lid [48]
Replacing the NDE bearing on single-bearing 4.6.5 -
machines
Dismantling 4.6.5.1 -
- Remove the NDE shield [36] (see section 4.6.4.1).
- Remove the ball bearing [70] using a screw puller.
Rotor
NDE shield
M8 threaded rod
Rotor
NDE shield
M8 threaded rod