Leroy-Somer R448 Instruction Manual

Thismanualistobegivento
theenduser
3972 en - 05.2008 / e
R448 & R448 V50
A.V.R.
Installation and maintenance
X2 X1 Z2 E+ E- 0V
110 2
2
Z1
+
6-
R 448
F
1
S
T5
Field
Armature
Slow fuse
250V 10 A
with LAM without LAM
10 Yellow
11 Red
9 Green
12 Black
S
T3
50Hz 60Hz
ST10
r
equency

Installation and maintenance
R448 & R448 V50
A.V.R.
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LEROY-SOMER
SAFETY MEASURES
Before using your machine for the first time,
it is important to 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 infor-
mation you may require.
The various operations described in this
manual are accompanied by recommen-
dations 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.
Warning symbol for an operation
capable of damaging or destroying the
machine or surround-ing equipment.
Warning symbol for general danger to
personnel.
Warning symbol for electrical danger to
personnel.
Note: LEROY-SOMER reserves the right to
modify the 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.
WARNING
WARNING
This manual concerns the alternator A.V.R. which you have just purchased.
We wish to draw your attention to the contents of this maintenance manual. By
following certain important points during installation, use and servicing of your A.V.R.,
you can look forward to many years of trouble-free operation.

Installation and maintenance
R448 & R448 V50
A.V.R.
3972 en - 05.2008 / e
LEROY-SOMER
3
CONTENTS
1 - GENERAL INFORMATION................................................................................................5
1.1 - Description...................................................................................................................5
1.2 - Identification...................................................................................................................
2 - SUPPLY.............................................................................................................................5
2.1 - AREP excitation system ..............................................................................................5
2.2 - PMG excitation system................................................................................................6
2.3 - SHUNT or separate excitation system.........................................................................7
3 - R448 A.V.R. .......................................................................................................................8
3.1 - Characteristics.............................................................................................................8
3.2 - Frequency compared with voltage (without LAM)........................................................8
3.3 - LAM (Load Acceptance Module) characteristics .........................................................8
3.4 - Typical effects of the LAM with a diesel engine with or without a LAM (U/F only).......9
3.5 - R448 A.V.R. options....................................................................................................9
4 - INSTALLATION - COMMISSIONING..............................................................................11
4.1 - Electrical checks on the AVR.....................................................................................11
4.2 - Settings......................................................................................................................11
4.3 - Electrical faults...........................................................................................................14
5 - SPARE PARTS................................................................................................................15
5.1 - Designation................................................................................................................15
5.2 - Technical support service..........................................................................................15
All such operations performed on the A.V.R. should be undertaken by personnel trained
in the commissioning, servicing and maintenance of electrical and mechanical
components.
Copyright 2005 : MOTEURS LEROY-SOMER
This document is the property of :
MOTEURS LEROY-SOMER
It may not be reproduced in any form without prior authorization.
All brands and models have been registered and patents applied for.

Installation and maintenance
R448 & R448 V50
A.V.R.
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1 - GENERAL INFORMATION
1.1 - Description
The A.V.R. R 448 V50 is delivered in a box
designed to be mounted on a panel with
suspension.
Connexions are made with «Faston»
connectors.
- Operating temperature: - 30°C to +70°C
- Storage temperature: - 55°C to + 85°C
- Shocks on the base: 9g for the 3 axis
- Vibrations: Less than 10Hz: 2mm half
peak amplitude
10Hz to 100Hz: 100mm/s, above 100Hz:
8g
1.2 - Identification
These 2 A.V.R.s have strictly identical
characteristics and dimensions, the
following details distinguish the V50:
- an adjuster dedicated to the alternator
LSA 50.2,
- the elimination of the ST6 jumper (A)
- a white serigraphy (B)
(blue for R 448),
- a label stipulating the type of alternator
(C).
A
R 448
R 448 V50
B
C

Installation and maintenance
R448 & R448 V50
A.V.R.
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5
2 - SUPPLY
2.1 - AREP excitation system
For both AREP & PMG excitation systems,
the alternator voltage regulator is the R
448.
With AREP excitation, the R 448 electronic
AVR is powered by two auxiliary windings
which are independent of the voltage
match circuit.
The first winding has a voltage in proportion
to that of the alternator (characteristic
Shunt), the second has a voltage in
proportion to the stator current (compound
characteristic: Booster effect).
The power supply voltage is rectified and
filtered before being used by the AVR
monitoring transistor.
X2 X1 Z2 E+ E- 0V
110 220 380
Z1
T1 T2 T3
T4 T5 T6
Varistor
5+ 6-
T7 T8 T9
T10 T11 T12
R 448
F1
ST5
P5
ST11
ST2
P3
AREP SYSTEM
Field
Armature
MAIN FIELD
Slow fuse
250V 10 A
with LAM without LAM
Excitation
ceiling
knee-point: 65 Hz
open
Response
time
normal
fast
Stability
according voltage
10 Yellow
11 Red
9 Green
12 Black
Aux. windings
STATOR : 6 wires (marked T1 to T6)
STATOR : 12 wires (marked T1 to T12)
ST6 ST1
46.2/47.2
49.1
P2
No ST6 jumper
for R448 V50
4 x holes Ø 5.8
(175 x 115 mm)
200 mm
140 mm
R731
Option
ST4
Option
T.I.
Option
S1 P1
Ph.1
P2
S2
Voltage
Single-
phase
detection
External potentiometer
for adjusting the voltage
in 3-ph. detection ST1 open
3-ph. detection
ST9
AREP/SHUNT
PMG
ST3
50Hz 60Hz
ST10
13 %
LAM
25 %
P1
Frequency
Quad
droop

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A.V.R.
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2.2 - PMG excitation system
With PMG excitation, a permanent magnet
generator (PMG) added to the alternator
supplies the AVR with voltage which is
independent of the main alternator winding.
This is fitted at the rear of the machine and
connected to the R 448 AVR, and the ST9
jumper must be disconnected.
These two principles provide the machine
with a short-circuit current capacity of 3 IN
for 10 s, and good immunity to distortions
generated by the load.
The AVR monitors and corrects the
alternator output voltage by adjusting the
excitation current.
ST6 ST1
46.2/47.2
49.1
P2
No ST6 jumper
for R448 V50
4 x holes Ø 5.8
(175 x 115 mm)
200 mm
140 mm
X2 X1 Z2 E+ E- 0V
110 220 380
Z1
T1 T2 T3
T4 T5 T6
Varistor
5+ 6-
T7 T8 T9
T10 T11 T12
R 448
F1
ST5
P5
ST11
ST2
P3
R731
Option
ST4 Option
T.I.
Option
S1 P1
Ph.1
P2
S2
14 15 16
PMG
PMG SYSTEM
Field
Armature
MAIN FIELD
Slow fuse
250V 10 A
with LAM without LAM
Excitation
ceiling
knee-point: 65 Hz
open
Response
time
normal
fast
Stability Voltage
Single-
phase
detection
External potentiometer
for adjusting the voltage
according voltage
STATOR : 6 wires (marked T1 to T6)
STATOR : 12 wires (marked T1 to T12)
in 3-ph. detection ST1 open
3-ph. detection
ST9
AREP/SHUNT
PMG
ST3 50Hz 60Hz
ST10
13 %
LAM
25 %
P1
Frequency
Quad
droop

Installation and maintenance
R448 & R448 V50
A.V.R.
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7
2.3 - SHUNT or separate excitation
system
In SHUNT excitation, R 448 A.V.R. is
supplied by main windings (140V - 50/60
Hz) to X1, X2.
The new functions are :
- Parallel operation between alternators
with C.T.
- Parallel operation with the mains with C.T.
and R 726 module
- 3-phase sensing (R 731 module)
- LAM function integrated in the R 448 AVR.
In this case of LSA 42.2, A.V.R. and
module(s) must be installed in the
external control panel.
X2 X1 Z2 E+ E- 0V
110 220 380
Z1
T1 T2 T3
T4 T5 T6
Varistor
5+ 6-
T7 T8 T9
T10 T11 T12
R 448
F1
ST5
P5
ST11
ST2
P3
STATOR : 12 wires (marked T1 to T12)
SHUNT SYSTEM
Field
Armature
MAIN FIELD
Slow fuse
250V 10 A
with LAM without LAM
Excitation
ceiling
knee-point: 65 Hz
open
Response
time
normal
fast
Stability
according voltage
ST6 ST1
46.2/47.2
49.1
P2
No ST6 jumper
for R448 V50
4 x holes Ø 5.8
(175 x 115 mm)
200 mm
140 mm
R731
Option
ST4 Option
T.I.
Option
S1 P1
Ph.1
P2
S2
Voltage
Single-
phase
detection
External potentiometer
for adjusting the voltage
in 3-ph. detection ST1 open
3-ph. detection
ST9
AREP/SHUNT
PMG
ST3 50Hz 60Hz
ST10
13 %
LAM
25 %
P1
Frequency
Quad
droop

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A.V.R.
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3 - R448 A.V.R.
3.1 - Characteristics
- Shunt power supply: max 150V - 50/60 Hz
- Rated overload current: 10A - 10s
- Electronic protection: (in the event of
overload,short-circuit,lossof voltage sensing)
this acts to restore the value of the excitation
currentto1A after 10s.The alternator mustbe
stopped (or the power switched off) in order to
reset the protection.
- Fuse: F1 on X1, X2. 10A ; slow - 250V
- Voltage sensing : 5 VA isolated via trans-
former
• 0-110 V terminals = 95 to 140 V
• 0-220 V terminals = 170 to 260 V
• 0-380 V terminals = 340 to 520 V
for other voltages, a transformer should be
used.
- Voltage regulation ± 0.5%
- Normal or rapid response time via jumper
ST2 (see below)
- Voltage adjustment via potentiometer P2 or
apply a DC voltage of ± 1 V on the terminals of
the external potentiometer
- Current sensing: (parallel operation): input
S1, S2 intended for 1 C.T. Š 2.5 VA cl1,
secondary 1A (optional)
- Quadrature droop adjustment via potentio-
meter P1
- Max. excitation current adjustment via P5 :
4.5 to 10A (see below)
- 50/60 Hz selection via ST3 jumper
- ST11 : Knee-point at 65 Hz for Tractelec
application and variable speed.
3.1.1 - Configuration jumpers function
3.1.2 - Setting potentiometers function
Pot. Delivrery
config. Position Function
Open Closed
ST1 3-ph. Mono Open for module
installation tri detection
ST2 Fast Normal Response time
ST3 50 ou 60 Hz Frequency selection
ST4 External potentio-
meter Without Potentiometer
ST5 Without With LAM
closed Alternator LSA 46.2 and
LSA 472
ST6 With open Alternator LSA 49.1
no jumper Alternator LSA 50.2
ST9 Others
(PMG...) AREP SHUNT Supply
ST10 13% or 25% LAM voltage drop
amplitude
ST11 65 Hz 48 or
58 Hz U/f function bend position
Delivrery
position Pot. Function
0 P1 Quadrature droop ; // operation with C.T.
400V P2 Voltage
Centre P3 Stability
Maxi P5 Excitation current ceiling

Installation and maintenance
R448 & R448 V50
A.V.R.
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9
3.2 - Frequency compared with
voltage (without LAM)
3.3 - LAM (Load Acceptance
Module) characteristics
3.3.1 - Voltage drop
The LAM system is integrated in the
regulator, as standard it is active (ST5 with
bridge). It can be deactivated by removing
the ST5 bridge. It can be adjusted to 13%
or 25% by means of the ST10 jumper.
- Role of the “LAM” (Load Acceptance
Module):
On application of a load, the rotation speed
of the generator set decreases. When it
passes below the preset frequency
threshold, the LAM causes the voltage to
drop by approximately 13% or 25% and
consequently the amount of active load
applied is reduced by approximately 25%
to 45%, until the speed reaches its rated
value again.
Hence the LAM can be used either to
reduce the speed variation (frequency) and
its duration for a given applied load, or to
increase the applied load possible for one
speed variation (turbo-charged engine).
To avoid voltage oscillations, the trip
threshold for the LAM function should be
set approximately 2 Hz below the lowest
frequency in steady state.
It is advisable to use the LAM at 25% for
load impacts Š 70% of the genset rated
power.
- LAM : action eliminated by cutting the ST5
jumper.
3.3.2 - Gradual voltage return function
During load impacts, the function helps the
genset to return to its rated speed faster
thanks to a gradual increase in voltage
according to the principle:
- If the speed drops between 46 and 50 Hz,
the rated voltage follows a fast gradient as
it is restored.
- If the speed drops below 46 Hz, since the
engine needs more help, the voltage
follows a slow gradient as it returns to the
reference value.
100 %
50 Hz 60 Hz
Hz
50 Hz
48 Hz 57.5 Hz
60 Hz
V
oltage
Bend
U/U
N
Frequenc
y
LAM
U
N
0
48 or 57.5 Hz
0.85 U N
Voltage
U/f
50 or 60 Hz
fC fN
Voltag
e
ST5 disconnected
ST3
P2
Underspeed and LAM
0
Time
Drop N ≤46 Hz
U
Drop N > 46 Hz

Installation and maintenance
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A.V.R.
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3.4 - Typical effects of the LAM with
a diesel engine with or without a
LAM (U/F only)
3.4.1 - Voltage
3.4.2 - Frequency
3.4.3 - Power
3.5 - R448 A.V.R. options
- Current transformer for parallel operation
of....../ 1A Š 2.5 VA CL 1 (See the diagram
in this manual).
- Voltage transformer (adaptation)
-Remotevoltageadjustmentpotentiometer:
470 Ω, 0.5 W min : adjustment range ± 5%
(range limited by internal voltage
potentiometer P2). Remove ST4 to connect
the potentiometer. (A 1 k Ωpotentiometer
can also be used to extend the adjustment
range).
- R 731 module: detection of 200 to 500V 3-
phase voltage, compatible with parallel
operation. Disconnect ST1 to connect the
module; set the voltage via the
potentiometer.
- R 734 module: detection of 3-phase
current and voltage for parallel operation on
unbalancedinstallations(imbalance>15%)
- R 726 module: regulationsystem changed
to "4-function". (See the maintenance
manual and connection diagram.)
• PF regulation ϕ(2F)
• voltage matching before paralleling (3 F)
• mains connection of alternators already
running in parallel (4F)
- R 729 module: same as R 726 with
additional functions
• detection of a diode fault
• 4/20 mA input
• possibility of kVAR regulation
- Control through DC voltage used
monitoring apply to the terminals for
connection of a potentiometer DC voltage :
• internal impedance 1,5 kΩ
• ± 0,5V enable a voltage setting of 10%.
U
N
0
0,9
0,8
(U/f)
with
LAM Tim
e
without LAM
1 s 2 s 3 s
Transient voltage drop
0
,9
0
,8
f
N
Max speed drop
0
with
LAM
Tim
e
without
LAM
1 s 2 s 3 s
01 s 2 s 3 s
Tim
e
LAM
Variation in the loa
d
Load on the
shaft (kW)
Load shedding due to "LAM"

Installation and maintenance
R448 & R448 V50
A.V.R.
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11
4 - INSTALLATION - COMMISSIONING
4.1 - Electrical checks on the AVR
- Check that all connections have been
made properly as shown in the attached
wiring diagram.
- Check that the ST3 frequency selection
jumper is on the correct frequency setting.
- Check whether the ST4 jumper or the
remote adjustment potentiometer have
been connected.
- Optional operating modes.
• ST1 jumper : open to connect the R 731
or R 734 3-phase
sensing module.
• ST2 jumper : open if rapid response time
used
• ST5 jumper : open to suppress the LAM
function.
• ST9 jumper : closed with AREP, open
with PMG.
4.2 - Settings
The machine is tested and set at the
factory. When first used with no load,
make sure that the drive speed is
correct and stable (see the nameplate).
After operational testing, replace all
access panels or covers.
The only possible adjustments to the
machine should be made on the AVR.
4.2.1 - R448 settings (AREP or PMG
system)
Before any intervention on the A.V.R.,
make sure that the ST9 jumper is closed
with AREP / SHUNT excitation and
disconnected with PMG or separate
excitation.
a) Initial potentiometer settings (see table
below)
- Remote voltage adjustment potentiometer
: centre (ST4 jumper removed).
Stability adjustments in standalone
operation
b) Install a D.C. analogue voltmeter (needle
dial) cal. 100V on terminals E+, E- and an
A.C. voltmeter cal 300 - 500 or 1000V on the
alternator output terminals.
c) Make sure that the ST3 jumper is
positioned on the desired frequency (50 or
60 Hz).
d) Voltage potentiometer P2 at minimum,
fully anti-clockwise.
e)StabilitypotentiometerP3 to around1/3of
the anti-clockwise limit.
f) Start the engine and set its speed to a
frequency of 48 Hz for 50 Hz, or 58 for 60
Hz.
g) Set the output voltage to the desired
value using P2.
- Rated voltage UN for solo operation (eg.
400 V)
- Or UN + 2 to 4% for parallel operation with
C.T. (eg. 410 V)
If the voltage oscillates, use P3 to make
adjustments (try both directions) observing
WARNING
WARNING
P2
P3
P1
P5
10 A
maximum
400V - 50 Hz
(Input
0 - 380 V)
Not set
(centre position)
Not set
(fully anti-
clockwise)
Excitation ceiling
Limit of excitation and
short-circuit current,
minimum fully anti-clockwise.
Voltage quadrature droop
(// operation with C.T.)
- 0 quadrature loop fully
anti-clockwise.
Voltage
minimum fully anti-clockwise
Stability
Action Factory setting Pot.

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the voltage between E+ and E- (approx. 10V
D.C.). The best response times are obtained
at the limit of the instability. If no stable
position can be obtained, try disconnecting
or replacing the ST2 jumper (normal/fast).
h) Check LAM operation : ST5 closed.
i) Vary the frequency (speed) around 48 or
58 Hz according to the operating frequency,
and check the change in voltage from that
observed previously (~ 15%).
j) Readjust the speed of the unit to its rated
no-load value.
Adjustments in parallel operation
Before any intervention on the alternator,
make sure that the speed droop is
identical for all engines.
k) Preset for parallel operation (with C.T.
connected to S1, S2)
- Potentiometer P1 (quadrature droop) in
centre position.
Apply the rated load (cos ϕ= 0.8 inductive).
The voltage should drop by 2 to 3%. If it
increases, check that V and W and also S1
and S2 have not been reversed.
l) The no-load voltages should be identical
for all the alternators intended to run in
parallel.
- Couple the machines in parallel.
- By adjusting the speed, try to obtain 0 KW
power exchange.
- By altering the voltage setting P2 on one of
the machines, try to cancel (or minimise) the
current circulating between the machines.
- From now on, do not touch the voltage
settings.
m) Apply the available load (the setting is
only correct if a reactive load is available)
- By altering the speed, match the KW (or
divide the rated power of the units
proportionally)
- By altering the quadrature droop
potentiometer P1, match or divide the
currents.
4.2.2 - Max. excitation setting (excitation
ceiling)
- static adjustment of the current limit ,
potentiometer P5 (fuse rating : 8 A - 10
seconds).
The maximum factory setting corresponds
to that of the excitation current required to
obtain a 3-phase short-circuit current of
approximately 3 IN at 50 Hz for industrial
power, unless otherwise specified(*).
A static method can be used to reduce this
value or adapt the Isc tothe actual operating
power (derated machine), which is safer for
the alternator and the installation.
- Disconnect power supply wires X1,X2 and
Z1,Z2 and the voltage reference (0-110V-
220V-380V) on the alternator.
Connect the mains power supply using a
transformer (200-240V) as indicated
(X1,X2) : 120V).
- Apply the corresponding voltage to the
voltage reference input used
- Supply the AVR with a voltage of 120V
max. on the X1, X2 input.
- Install a 10A D.C. ammeter in series with
the exciter field.
- Turn P5 fully anti-clockwise and activate
the power supply. If there is no output
current from the AVR, turnpotentiometer P2
(voltage) clockwise until the ammeter
indicates a stable current.
- Switch the power supply off, then on again,
turn P5 clockwise until the required max.
current is obtained (no more than 10 A).
Checking the internal protection :
depending on the mains frequen
cy
Max.excitation
Voltage
Field
~ 10 ohms
X2
Z1
X1
Z2
E+
E-
0V
110 V
220V
380V
50Hz 60Hz
P2
P3
P5
ST3
10A DC
100V...140V
110/220/380V
R 448
ST4
A+
-
A
D

Installation and maintenance
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A.V.R.
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13
Open switch (D) : the excitation current
should increase to its preset ceiling, remain
at that level for ≥1 second in AREP or 10
seconds in PMG and then drop to < 1A.
To reset, switch off the power supply by
opening switch (A). Reconnect the AVR to
the alternator and adjust the reference
voltage via P2 to obtain the rated voltage.
(*): In some countries it is a legal
requirement to have a short-circuit current,
so as to offer discriminating protection.
4.2.3 - Special type of use
Excitation circuit E+, E- must not be left
open when the machine is running :
AVR damage will occur.
4.2.3.1 - R448 field weakening (SHUNT)
The exciter is switched off by disconnecting
the AVR power supply (1 wire - X1 or X2).
Contact rating 16 A - 250V A.C.
4.2.3.2 - R448 field weakening (AREP/
PMG)
The exciter is switched off by disconnecting
the AVR power supply (1 wire on each
auxiliary winding) - contact rating 16 A -
250V A.C.
Connection is identical for resetting the
AVR internal protection.
In case of using the de-excitation,
provide a forced excitation.
4.2.3.3 - R448 field forcing
WARNING
WARNING
X2
Z1
X1
Z2
E+
E-
X2
Z1
X1
Z2
E+
E-
Applications B volts Time t
Guaranteed voltage build-up 12 (1A) 1 - 2 s
Parallel operation, de-energized 12 (1A) 1 - 2 s
Parallel operation, at standstill 12 (1A) 5 - 10 s
Frequency starting 12 (1A) 5 - 10 s
Sustained voltage on overload 12 (1A) 5 - 10 s
X2
Z1
X1
Z2
E+
E-
Battery (B Volt)
+
-
t
(400V - 10A)
Exciter field
Diode
t
B Volt
Forced excitation
Tim
e

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4.3 - Electrical faults
Warning : after operational testing,
replace all access panels or covers.
Fault Action Effect Check/Cause
No voltage at
no load on
start-up
Connect a new battery of 4
to 12 volts to terminals E-
and E+, respecting the
polarity, for 2 to 3 seconds
The alternator builds up and its voltage is
still correct when the battery is removed. - Lack of residual magnetism
The alternator builds up but its voltage
does not reach the rated value when
the battery is removed.
- Check the connection of the voltage reference to
the AVR
- Faulty diodes
- Armature short-circuit
The alternator builds up but its voltage
disappears when the battery is
removed
- Faulty AVR
- Field windings disconnected
- Main field winding open circuit - check the
resistance
Voltage too low Check the drive speed Correct speed
Check the AVR connections (AVR may be faulty)
- Field windings short-circuited
- Rotating diodes burnt out
- Main field winding short-circuited - Check the
resistance
Speed too low Increase the drive speed (Do not touch the AVR voltage pot. (P2) before
running at the correct speed.)
Voltage too
high Adjust AVR voltage potentiometer Adjustment ineffective Faulty AVR
Voltage
oscillations Adjust AVR stability potentiometer If no effect : try normal / fast recovery modes (ST2) - Check the speed : possibility of cyclic irregularity - Loose connections
- Faulty AVR
- Speed too low when on load (or U/F bend set too
high)
Voltage correct
at no load and
too low when
on load (*)
Run at no load and check
the voltage between E+
and E- on the AVR
Voltage between E+ and E-
SHUNT < 20 V - AREP / PMG < 10V - Check the speed (or U/F bend set too high)
Voltage between E+ and E-
SHUNT > 30V - AREP / PMG > 15V - Faulty rotating diodes - Short-circuit in the main field. Check the
resistance
- Faulty exciter armature.
(*) Caution : For single-phase operation, check that the sensing wires coming from the AVR are correctly connected to the operating terminals
Voltage
disappears
during
operation (**)
Check the AVR, the surge
suppressor, the rotating
diodes, and replace any
defective components
The voltage does not return to the rated
value. - Exciter winding open circuit - Faulty exciter armature
- Faulty AVR
- Main field open circuit or short-circuited
(**) Caution : Internal protection may be activated (overload, open circuit, short-circuit)

Installation and maintenance
R448 & R448 V50
A.V.R.
3972 en - 05.2008 / e
LEROY-SOMER
15
5 - SPARE PARTS
5.1 - Designation
5.2 - Technical support service
Our technical support service will be happy
to provide any information you require.
When ordering spare parts, you should in-
dicate the complete machine type, its serial
number and the information indicated on
the nameplate.
Part numbers should be identified from
the exploded views and their description
in the parts list.
Our extensive network of "service stations"
can dispatch the necessary parts without
delay.
To ensure correct operation and the safety
of our machines, we recommend the use of
original manufacture spare parts.
In the event of failure to comply with this ad-
vice, the manufacturer cannot be held res-
ponsible for any damage.
Description Type Code
A.V.R. R 448 AEM 110 RE 016
A.V.R. R 448 V50 AEM 110 RE 022

MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX -
FRANCE
338 567 258 RCS ANGOULÊME
S.A. au capital de 62 779 000 euro