3664 en - 01.

2008 / c

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LSA 37 - 2 POLE - ACC

ALTERNATORS
Installation and maintenance
 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS

This manual concerns the alternator which WARNING SYMBOLS

you have just purchased.
We draw your attention to the following 2 safety measures
The latest addition to a whole new generation which must be complied with:
of alternators, this range benefits from the
a) During operation, do not allow anyone to stand in front
experience of the leading manufacturer
of the air outlet guards, in case anything is ejected from
worldwide, using advanced technology and them.
incorporating strict quality control.
b) Do not allow children younger than 14 to go near the
air outlet guards.

SAFETY MEASURES A set of self-adhesive stickers depicting the various warning

symbols is included with this maintenance manual. They
should be positioned as shown in the drawing below once the
Before using your machine for the first time, it is important to
machine has been fully installed.
read the whole of this installation and maintenance manual.

All necessary operations and interventions on this machine

must be performed by a qualified technician.

Our technical support service will be pleased to provide any

additional information you may require.

The various operations described in this manual are

accompanied by recommendations or symbols to alert the
user to potential risks of accidents. It is vital that you
understand and take notice of the following warning symbols.

ATTENTION

Warning symbol for an operation capable of damaging or

destroying the machine or surrounding equipment.

Warning symbol for general danger to personnel.

Copyright 2002 : MOTEURS LEROY-SOMER

This document is the property of :
Warning symbol for electrical danger to personnel. MOTEURS LEROY-SOMER
It may not be reproduced in any form without prior
authorization.
All brands and models have been registered and patents
Note : LEROY-SOMER reserves the right to modify the applied for.
characteristics of its products at any time in order to
incorporate the latest technological developments. The
information contained in this document may therefore be
changed without notice.

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 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
CONTENTS

1 - RECEIPT 4 - SERVICING - MAINTENANCE

1.1 - Standards and safety measures ....................4 4.1 - Safety measures ........................................... 8

1.2 - Checks ...........................................................4 4.2 - Regular maintenance.................................... 8

1.3 - Identification...................................................4 4.3 - Fault detection .............................................. 8

1.4 - Storage ..........................................................4 4.4 - Mechanical defects ....................................... 9

1.5 - Applications....................................................4 4.5 - Electrical faults.............................................. 9

1.6 - Contraindications to use ................................4 4.6 - Dismantling, reassembly............................. 11

2 - TECHNICAL CHARACTERISTICS 5 - SPARE PARTS

2.1 - Electrical characteristics ................................5 5.1 - First maintenance parts .............................. 13

2.2 - Mechanical characteristics ............................5 5.2 - Technical support service ........................... 13

5.3 - Exploded view, parts list ............................ 13

3 - INSTALLATION - COMMISSIONING

3.1 - Assembly .......................................................6

EC declaration of incorporation
3.2 - Inspection prior to first use.............................6

3.3 - Terminal connection diagram.........................6

3.4 - Commissioning ..............................................7

3.5 - Setting up.......................................................7

3
 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
RECEIPT

1 - RECEIPT 1.3.1 - Nameplate

So that you can identify your machine quickly and accurately,
we suggest you fill in its specifications on the nameplate
1.1 - Standards and safety measures below.

Our alternators comply with most international standards and

are compatible with :
1.4 - Storage
- the recommendations of the Prior to commissioning, machines should be stored :
International Electrotechnical Commission - Away from humidity : in conditions of relative humidity of
IEC 60034-1, (EN 60034). more than 90%, the machine insulation can drop very rapidly,
- The European Community directive 89/336/EC on to just above zero at around 100%; monitor the state of the
Electromagnetic Compatibility (EMC). anti-rust protection on unpainted parts.
- The European Community directives For storage over an extended period, the machine can be
73/23/EC and 93/68/EC (Low Voltage Directive). placed in a sealed enclosure (heatshrunk plastic for example)
They are CE marked with regard to the LVD (Low Voltage with dehydrating sachets inside, away from significant and
Directive) in their role as a machine component. frequent variations in temperature to avoid the risk of
condensation during storage.
1.2 - Inspection - If the area is affected by vibration, try to reduce the effect of
these vibrations by placing the generator on a damper
On receipt of your alternator, check that it has not suffered support (rubber disc or similar) and turn the rotor a fraction of
any damage in transit. If there are obvious signs of knocks, a turn once a fortnight to avoid marking the bearing rings.
contact the transporter (you may able to claim on their
insurance) and after a visual check, turn the machine by hand
to detect any malfunction.
1.5 - Application
These alternators are mainly designed to produce electricity
1.3 - Identification in the context of applications involving the use of generators.

The alternator is identified by means of a nameplate fixed on

the frame.
1.6 - Contraindications to use
Make sure that the nameplate on the machine conforms to Use of the machine is restricted to operating conditions
your order. (environment, speed, voltage, power, etc) compatible with the
The machine name is defined according to various criteria characteristics indicated on the nameplate.
(see below).
Example of description for : LSA 37 M7 A1/2
• LSA : name used in the PARTNER range
M : Marine / C : Cogeneration / T : Telecommunications.
• 37 : machine type
• M7 : model
• A : field excitation system
(ACC)
• 1/2 : winding number / number of poles.

LSA Date PUISSANCE / RATING

Tension
N 5700 125897 A15 Hz Voltage
V
Min-1/R.P.M. 1500 Protection Ph.
Cos Ø /P.F. 0,8 Cl. ther. / Th.class Connex.
Régulateur/A.V.R. R 438 B
Continue kVA
Altit. m Masse / Weight
Continuous kW
Rlt AV/D.E bearing 6302 2 RS C3
40C A
Rlt AR/N.D.E bearing 6303 2 RS C3
Graisse / Grease 45g / 3600 h Secours kVA
Std by
Valeurs excit / Excit. values kW
en charge / full load 27C A
à vide / at no load (*) Tension maxi. / maximum voltage

4
 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
TECHNICAL CHARACTERISTICS

2 - TECHNICAL CHARACTERISTICS
2.1 - Electrical characteristics
The PARTNER LSA 37 alternator is a machine without
sliprings, using auxiliary phase capacitor to provide the self
excitation (ACC system).
Interference suppression conforms with standard EN 55011,
group 1, class B.

ROTOR STATOR
U6 ( T4 ) Z1 ( T5 )
Yellow White
Diodes
Capacitor
Frame U5 ( T3 )
Black U2
U1 ( T1 )
Red
U1

U2 ( T2 ) Z2 ( T8 )
Green Brown

Main winding Auxiliairy winding

2.2 - Mechanical characteristics

- Steel frame
- End shields in aluminium
- Ball bearings greased for life
- Mounting arrangement

IM 1201: (MD 35)

Single-bearing with standard feet and SAE flanges/coupling
discs

S.A.E. J 609a - flange B - ext 6 - Cone Ø 35

IM 1001: (B 34)
Two-bearing with SAE flange and standard cylindrical shaft
extension

- Drip-proof machine, self-cooled

- Degree of protection : IP 23

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 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
INSTALLATION

3 - INSTALLATION Tighten the coupling discs screws to the recommended

torque (see section 4.6.2.) and check that there is lateral play
Personnel undertaking the various operations indicated on the crankshaft.
in this section must wear personal protective equipment
appropriate for mechanical and electrical hazards. 3.1.2.2 - two-bearing alternator
- Semi-flexible coupling
3.1 - Assembly Careful alignement of the machines by measuring the
concentricity and parallelism of the two parts of the coupling
is recommended, the difference between the teadings should
not exceed the specified values (say 0,1 mm).

All mechanical handling operations must be undertaken ATTENTION

using approved equipment and the machine must be
horizontal. Check how much the machine weighs (see This alternator has been balanced with a 1/2 key.
4.5.5.) before choosing the lifting tool. 3.1.3 - Location
Ensure that the ambient temperature in the room where the
3.1.1 - Handling alternator is placed cannot exceed 40°C for standard power
The generously-sized lifting rings are for handling the ratings (for temperatures above 40°C, apply a derating
alternator alone. They must not be used to lift the genset. The coefficient). Fresh air, free from damp and dust, must be able
choice of lifting hooks or handles should be determined by the to circulate freely around the air input louvres on the opposite
shape of these rings. Choose a lifting system which respects side from the coupling. It is essential to prevent not only the
the integrity and the environment of the alternators. recycling of hot air from the machine or engine, but also
exhaust fumes.

3.2 - Inspection prior to first use

3.2.1 - Electrical checks

Under no circumstances should an alternator, new or

otherwise, be operated if the isolation is less than 1
megohm for the stator and 100,000 ohms for the other
windings.
There are two possible methods for restoring the above
minimum values.
a) Dry out the machine for 24 hours in a drying oven at a
temperature of approximately 110 °C.
b) Blow hot air into the air input, having made sure that the
machine is rotating with the exciter field disconnected.
During this operation, do not allow anyone to stand cNote: Prolonged standstill: In order to avoid these problems,
under the load. we recommend the use of space heaters, as well as turning
over the machine from time to time. Space heaters are only
3.1.2 - Coupling really effective if they are working continuously while the
3.1.2.1 - single bearing alternator machine is stopped.
Before coupling to the prime mover, check that both are
compatible by: 3.2.2 - Mechanical checks
- Undertaking a torsional analysis of the transmission. Before starting the machine for the first time, check that:
-Checking the dimensions of the flywheel and its housing, the - The winding connection corresponds to the site operating
flange, coupling discs and offset. voltage (see section 3.3)
- The fixing bolts on the feet are tight
ATTENTION - The cooling air is drawn in freely
- The protective guards and housing are correctly in place
When coupling the alternator to the prime mover, do not
use the fan to turn the alternator rotor. The holes of the
coupling discs should be aligned with the flywheel holes
by turning the engine flywheel.
Make sure the alternator is securely bedded in position
during coupling.

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 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
INSTALLATION

3.3 - Terminal connection diagrams

To modify the connection, change the position of the terminal
cables. The winding code is specified on the nameplate.

Any intervention on the alternator terminals during

reconnection or checks should be performed with the
machine stopped.

PARALLEL CONNEXION SERIE CONNEXION

110 V - 50 Hz / 120 V - 60 Hz 230 V - 50 Hz / 240 V - 60 Hz

U1 ( T1 ) U2 ( T2 )

U1 ( T1 )

U6 ( T4 )
U2 ( T2 )

U5 ( T3 )
U5 ( T3 ) U6 ( T4 )

LOWER VOLTAGE HIGHER VOLTAGE

L1 L2 L1 L2

U6.T4 U6.T4
AV U2.T2 AV U2.T2

U5.T3 Z1.T5 U5.T3 Z1.T5

U2 U2

U1.T1 Z2.T8 U1.T1 Z2.T8

U1 U1

AR AR
L1 L2 LOWER VOLTAGE L1 L2 HIGHER VOLTAGE

3.3.1 - Connection checks 3.4 - Commissioning

The machine can only be started up and used if the

Electrical installations must comply with the current
installation is in accordance with the instructions and
legislation in force in the country of use.
advice defined in this manual.
Check that :
The machine is tested and set at the factory. When first used
- the differential circuit-breaker conforms to legislation on
with no load, make sure that the drive speed is correct and
protection of personnel, in force in the country of use, and has
stable (see the nameplate). On application of the load, the
been correctly installed on the alternator power output as
machine should maintain its rated speed and voltage;
close as possible to the alternator. (Disconnect the blue wire
however, if the machine still operates incorrectly, the cause of
of the R 791 interference suppression module linking the
the malfunction must be located (see section 4.4).
neutral).
- the machine should be connected with the terminal lugs on
top of one another as shown in the terminal connection 3.5 - Setting up
diagrams.

The various adjustments during tests must be made by a

qualified engineer. Take care that the drive speed
specified on the nameplate is reached before
commencing adjustment. After operational testing,
- any protective devices in place have not tripped,
replace all access panels or covers.
- there is no short-circuit between phase or phase-neutral
between the alternator output terminals and the generator set
control cabinet (part of the circuit not protected by circuit-
breakers or cubicle relays)

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LSA 37 - 2 POLE - ACC

ALTERNATORS
SERVICING - MAINTENANCE

4 - SERVICING - MAINTENANCE - Benzene (or benzine, toxic); inflammable

- Ciclohexare (non toxic); inflammable
4.1 - Safety measures
Cleaning of the stator, rotor, exciter and diode bridge

Servicing or troubleshooting must be carried out strictly

in accordance with instructions so as to avoid the risk of These operations must be performed at a cleaning
accidents and to maintain the machine in its original station, equipped with a vacuum system that collects and
state. flushes out the products used.

The insulating components and the impregnation system are

not at risk of damage from solvents (see the above list of
authorised products).
All such operations performed on the alternator should Avoid letting the cleaning product run into the slots. Apply the
be undertaken by personnel trained in the product with a brush, sponging frequently to avoid
commissioning, servicing and maintenance of electrical accumulation in the housing. Dry the winding with a dry cloth.
and mechanical components, who must wear personal Let any traces evaporate before reassembling the machine.
protective equipment appropriate for mechanical and
electrical hazards. 4.2.5 - Mechanical servicing
Before any intervention on the machine, ensure that it cannot
be started by a manual or automatic system and that you ATTENTION
have understood the operating principles of the system.
Cleaning the machine using water or a high-pressure
4.2 - Regular maintenance washer is strictly prohibited.
Any problems arising from such treatment are not
4.2.1 - Checks after start-up covered by our warranty.
After approximately 20 hours of operation, check that all fixing Degreasing : Use a brush and detergent (suitable for
screws on the machine are still tight, plus the general state of paintwork).
the machine and the various electrical connections in the Dusting : Use an air gun.
installation. If filters have been added to the machine after manufacture
and do not have thermal protection, the service personnel
4.2.2 - Cooling circuit should clean the air filters periodically and systematically, as
often as necessary (every day in very dusty atmospheres).
It is advisable to check that circulation of air is not reduced by Cleaning can be performed using water for dry dust or in a
partial blocking of the air intake and outlet guards: mud, fibre, bath containing soap or detergent in the case of greasy dust.
soot, etc. and to check whether the ventilation guards are Petrol or chloroethylene can also be used.
corroded or scratched. After cleaning the alternator, it is essential to check the
winding insulation (see sections 4.5.1).
4.2.3 - Bearings
The bearings are greased for life: approximate life of the 4.3 - Fault detection
grease (depending on use) = 20,000 hours or 3 years.
If, when commissioned, the alternator does not work
Monitor the temperature rise in the bearings, which should not
normally, the source of the malfunction must be identified.
exceed 50°C above the ambient temperature. Should this
To do this, check that :
value be exceeded, the machine must be stopped and checks
- the protective devices are fitted correctly
carried out.
- the connections comply with diagrams in the manuals
supplied with the machine
4.2.4 - Electrical servicing - the speed of the unit is correct (see section 1.3).
Cleaning product for the windings Repeat the operations defined in section 3.

ATTENTION
Do not use : trichlorethylene, perchlorethylene,
trichloroethane or any alkaline products.

Certain strictly defined pure volatile degreasing products can

be used, such as :
- Normal petrol (without additives) ; inflammable
- Toluene (slightly toxic); inflammable

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LSA 37 - 2 POLE - ACC

ALTERNATORS
SERVICING - MAINTENANCE

4.4 - MECHANICAL FAULTS

Fault Cause
Excessive overheating of one or both - If the bearing has turned blue or if the grease has turned black, change the
Bearing bearings (bearing temperature 50°C above bearing.
the ambient temperature) (With or without - Bearing not fully locked (abnormal play in the bearing cage)
abnormal bearing noise) - End shields incorrectly aligned
- Air flow (inlet-outlet) partially clogged or hot air is being recycled from
Excessive overheating of alternator frame the alternator or engine
Abnormal (more than 40° C above the ambient - Alternator operating at too high a voltage (> 105% of Un on load)
temperature temperature) - Alternator overloaded
- Misalignment (coupling)
Too much vibration - Defective mounting or play in coupling
Vibrations - Rotor balancing fault (Engine - Alternator)
Excessive vibration and humming noise - Phase imbalance
coming from the machine - Stator short-circuit
- System short-circuit
- Misparalleling
Alternator damaged by a significant impact, Possible consequences
Abnormal noise followed by humming and vibration - Broken or damaged coupling
- Broken or bent shaft end
- Shifting and short-circuit of main field
- Fan fractured or coming loose on shaft
- Irreparable damage to rotating diodes

4.5 - Electrical faults

Fault Action Effect Check/Cause
The alternator builds up and voltage is - Lack of residual magnetism
correct after battery removal - Check capacitor voltage.
(correct value 10 to 15 v across auxiliary winding
terminals, with capacitor(s) disconnected)
The alternator builds up but voltage - Check if the circuit is broken in relation to either of the
No voltage at no Apply 6 v D.C. for 1 second does not reach nominal value after capacitors
load on start-up on one of the capacitors battery removal
The alternator builds up but voltage - Voltage too low : fault in rotation diodes
collapses after battery removal

No voltage output - Auxiliary winding break

- Rotating diodes burnt (check diodes)
- Main field winding open circuit
Voltage too high Reduce speed Genset speed to high

Voltage correct - Too high speed drop on load

on no- load, too - Check speed- Genset overload
low on load - Short circuit in main field, check resistance

4.5.1 - Measurement of resistance windings

stator.

During this procedure, make sure that the alternator is

disconnected from any external load.
Resistance Main winding Auxiliary winding
- Unscrew the top cover
- Disconnect capacitors leads in order to read auxiliary
Ω 50 Hz 60 Hz 50 Hz 60 Hz
winding resistance Stator 2 P 230 V 240V 110V 120V
- Disconnect leads from terminal plate in order to read main LSA 37 M7 0,5 0,4 1,7 0,9
winding resistances. LSA 37 M8 0,3 0,3 1 0,6
LSA 37 L6 0,2 0,16 0,6 0,4
LSA 37 VL11 0,12 0,11 0,4 0,26

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 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
SERVICING - MAINTENANCE

4.5.2 - Measurement of ROTOR winding

resistances. 220V 50 Hz
240 V 60 Hz

Rd
During this procedure, make sure that the alternator is
disconnected from any external load.
- Unscrew the 6 cover fixing screws. A
- Remove the NDE shield Condensateurs
- Unsolder the wires on the diodes in order to read the
resistance of each winding.
Rd: discharging resistor (5000 ohms - 20 W)
The currents are indicated with ±10% tolerance
Capacitor (...µF-450V - 3000H)
50 Hz 220 V 60 Hz 240 V
2 poles µF I (A) µF I (A)
LSA 37 M7 70 4.8 80 7.2
LSA 37 M8 100 6.9 120 10.8
LSA 37 L6 130 9 160 14.5
Rotor
LSA 37 VL11 180 12.4 220 20
Resistances
(ohms) Main phase Auxiliary phase 4.5.5 - Weight tables
LSA 37 M7 0.37 0.5
Type Total weight (kg)
LSA 37 M8 0.4 0.6
LSA 37 M7 80
LSA 37 L6 0.5 0.7
LSA 37 M8 95
LSA 37 VL11 0.6 0.8
LSA 37 L6 100
LSA 37 VL11 120
4.5.3 - Checking the diode bridge
- Proceed in the same way as for reading the rotor resistance 4.6 - Dismantling, reassembly (see
by unsoldering a single side of the diodes.
A diode in good working order should allow the current to flow section 5)
only in the anode-to-cathode direction.

Anode A C Cathode

- + - + During the warranty period, this operation should only be

A C C A carried out in an approved workshop or in our factory,
otherwise the warranty may be invalidated.

ATTENTION
Whilst being handled, the machine should remain
horizontal (rotor not locked when moved).
Check how much the machine weighs (see 4.5.5.) before
choosing the lifting tool. The choice of lifting hooks or
4.5.4 - Checking the capacitor handle should be determined by the shape of the lifting
rings.

4.6.1 - Tools required

To fully dismantle the machine, we recommend using the
tools listed below :
During this procedure, make sure that the alternator is
- 1 ratchet spanner + extension
disconnected from any external load.
- 1 torque wrench
- Unscrew the 6 cover fixing screws.
- 1 flat spanner set
- Disconnect the capacitor wires and connect it to an AC
- 1 socket set
supply in series with a switch and an ammeter.
- 1 Allen key set
- 1 TORX bit set
- 1 puller.

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 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
SERVICING - MAINTENANCE

4.6.2 - Screw tightening torque

IDENTIFICATION Screw Ø Torque (Nm) ATTENTION
Diode nut 1/4 - 28 threads 3
Tie rod M8 23 NOTE: If intervention is required on the main field
(rewinding, replacement of components), the rotor
Disc/shaft screw M10 66
assembly must be rebalanced.
Cover screws M5 5
Armature rod M8-5/16 UNF 17 4.6.9 - ASSEMBLY OF SINGLE-BEARING
VERSION SAE J 609b
4.6.3 - Access to diodes
1 - Mount the shield on the motor, screw tightening torque: 22 Nm.
--Unscrew the 6 cover fixing screws (only on L version) 2 - Mount the rotor assembly on the motor shaft extension
- Remove the NDE shield and access the diodes (110) and fix the assembly by means of the rod (13) with a torque
of 17 Nm.
4.6.4 - Access to capacitor and connection 3 - Mount the stator assembly and fix it using the 4 screws on
- Unscrew the 6 screws (49), then remove the cover (48) the DE shield. Recommended tightening torque: 20 Nm.

4.6.5 - Dismantling
4.6.5.1 - N.D.E. bearing replacing on single bearing
alternator
- Remove rotor (4) from stator (take care not to damage 1 2
windings and diodes)
- Extract bearing (70) with a bearing puller

4.6.10 - DISMANTLING OF SINGLE-BEARING

VERSION SAE J 609b
4.6.6 - Bearings replacing on two bearing
4 - Unscrew the 4 stator screws on the DE shield.
alternator Carefully take out the stator assembly.
- Un bolt D.E. bracket 5 - Unscrew the armature rod from the rotor. Using a mallet,
- Pull out rotor + D.E. bracket (careful of demage to windings hold the rotor in one hand and use the other hand to tap a
and diodes salient pole firmly with the mallet in order to remove the rotor
- Remove circlips (284) from the motor shaft.
- Remove from rotor (4) D.E. bearing set (410) + (60) 6 - Unscrew the 4 screws of the shield on the motor.
- Remove D.E. bearing (60)
- Remove N.D.E. bearing (70) with a bearing puller

4.6.7 - Complete disassembly

- Un bolt D.E. bracket (410) (only two bearings alternators)
- Pull out rotor + D.E. bracket (careful of demage to windings 4
and diodes)
- Unscrew (49) and take off top cover (48)
- Disconnect connections
- Unscrew 4 nuts (38)
- Separate brackets (30) and (36) from stator (1)

4.6.8 - REASSEMBLY
Reverse procedure of disassembly. 5 6
(Check that the preloading wavy washer (79) is at the right
place in the N.D.E. bracket).

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LSA 37 - 2 POLE - ACC

ALTERNATORS
SPARE PARTS

5 - SPARE PARTS 5.3 - Exploded view, parts list

5.1 - First maintenance parts No. Qty Description
1 1 Stator assembly
Emergency repair kits are available as an option.
4 1 Rotor assembly
They contain the following items:
13 1 Tie rod

No. Description Qty LSA 37 Coding 14 1 Rod nut

15 1 Fan
110 Diode 2 80A -700 V ESC 070 DC 001
18 1 Balancing disc
183 Capacitor - - -
21 1-2 Lifting ring
5.1.1 - Description of bearings 22 1 Key
30 1 DE shield
33 1 Protective guard
No. Description Qty LSA 37 Coding
34 2 Fixing screws
60 D.E. bearing 1 6208 2Z/C3 RLT 040 BH 020
36 1 NDE shield
70 N.D.E. bearing 1 6207 2Z/C3 RLT 035 BH 020
37 4 Tie rod
38 4 Nut
5.2 - Technical support service 43 1 Cable gland
48 1 Cover top panel
Our technical support service will be happy to provide any
49 13 Fixing screws
information you require.
53 1 Plug
When ordering spare parts, you should indicate the 60 1 Drive end bearing
complete machine type, its serial number and the 70 1 NDE bearing
information indicated on the nameplate.
79 1 Spring washer
Address your enquiry to your usual contact. 110 2 Direct diode
124 1 Terminal block
183 - Capacitor
ATTENTION 184 - Clamp
Part numbers should be identified from the exploded 185 - Adhesive
views and their description in the parts list. 188 1 Capacitor support
Our extensive network of "service stations" can dispatch 265 1 Flange adaptor
the necessary parts without delay.
To ensure correct operation and the safety of our 266 4 Fixing screws
machines, we recommend the use of original 284 1 Circlip
manufacture spare parts. 322 1 Coupling disc
In the event of failure to comply with this advice, the
323 6 Fixing screws
manufacturer cannot be held responsible for any
damage. 324 1 Clamping washer
349 1 'O' ring seal
410 1 DE end shield

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LSA 37 - 2 POLE - ACC

ALTERNATORS
SPARE PARTS

5.3.1 - LSA 37 - Single-bearing - IM 1201

48

49
183

184 110

185
124
188
30
21
15
322
324
323

53
38
36
37
79
349
70
18
1
4
34
33

5.3.2 - LSA 37 - Single-bearing - SAE J609a

48
49

184

185 183
110
124
14
188
4
266
30
15
265

53
38
36
79
349
70
18
13
1
21
37

13
 LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
SPARE PARTS

5.3.3 - LSA 37 - Two-bearing- IM 1001

48
49

184
183
124
110
185
349
188
22
60 36
33
21
30
410
411
284

53
38
37
79
70
18
1
4
15
34

14
LEROY-SOMER INSTALLATION AND MAINTENANCE 3664 en - 01.2008 / c

LSA 37 - 2 POLE - ACC

ALTERNATORS
SPARE PARTS

Alternator Division 6 June 2007

EC DECLARATION OF INCORPORATION

Concerns electric generators designed to be incorporated in machines subject to Directive no. 98/37/EC.

The manufacturer : Moteurs LEROYSOMER

Boulevard Marcellin Leroy
16015 ANGOULEME (France)

Herein declares that the electric generators in the PARTNER range (low voltage) and those series based on them
conform to the following standards and directives:

 EN and IEC 600341 and 600345

 ISO 85283 (Design of alternators for generator applications)

 Low Voltage Directive no. 73/23/EC dated 19 February 1973, modified by Directive no. 93/68/EC
dated 22 July 1993

These generators are designed to be used in complete power generating sets which must comply with the
following standards and directives:

 Machinery directive no. 98/37/EC

- EMC directive no. 89/336/EC modified by Directives nos. 92/31 EC dated 28 April 1992 and 93/68/EC
dated 22 July 1993, concerning the intrinsic characteristics of emission and immunity levels.

 Standard EN 602041 (Electrical Equipment of Industrial Machines)

WARNING:

The abovementioned generators must not be commissioned until the machines in which they are to be
incorporated have been declared as conforming to Directives nos. 98/37/EC and 89/336 EC and any other
directives that may be applicable.

Ref : 4152 en – 06.2007/a

ALTERNATOR DIVISION

15
LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE
RCS ANGOULÊME N° B 671 820 223
S.A. au capital de 62 779 000 ¤

www.leroy-somer.com