Leroy-Somer X2 Instruction Manual

X2 X3 - AC Gearless
Réf. 3377 GB - 4.33 / a - 09.00
Installation and maintenance
This manual must be sent
to the end user

In order to obtain complete satisfaction with your new
LEROY–SOMER gearless machine, it is important to
comply with the following instructions.
1. - RECEIPT
Initial checks :
- As soon as you receive the machine, inspect the
state of the packing and the machine. In the event of any
damage having been caused by transportation, notify
your haulage contractor.
- Next, ensure that the identification plate conforms
with the contract specifications and certified data.
2. - STORAGE
2.1 - Storage area
The storage area must be dry, and sheltered from the
elements. With a minimum temperature of -40°C, it
should not be subject to frequent temperature variations
(to avoid the risk of condensation), and should be free
from vibration, dust and corrosive gases.
2.2 - Long-term storage (> 3 months)
- Place the motor in an horizontal position in a sealed
watertight package (heat-sealed bag, for example)
containing a deshydrating sachet and bag large enough
to protect the machine, taking account of its size and the
humidity in the storage area.
- The grooves of the traction sheave are protected by a
special wax; don't remove this protective film, it protects
the exposed surfaces.
- In case of vibrations in the warehouse, it is recom-
mended to rotate the traction sheave twice a month mini-
mum (this can be done by releasing brake with manual
realesed system or by opening brake arms). After opera-
tion put the brake back into its original position. Make
sure the protective paper between the lining and the
brake wheel is still in position.
3. - ENVIRONMENT
Rated characteristics for these motors are given for a
normal environment (specified in IEC 34.1) :
- altitude 1000 m or less,
- maximum relative humidity: less than 95%,
- temperature between -16 and + 40 °C.
More stringent specifications can be accommodated by
derating if the particular requirements are stated at the
time of ordering.
4. - COMMISSIONING
4.1 - Insulation inspection (before installation)
If the motor has been stored for several months, it is
essential to check that :
•the inside is clean and free of condensation;
•the motor is correctly insulated (minimum of
>100 MΩ powered at 500 V.D.C.) after disconnection of
all the electronic circuits.
WARNING : Do not apply the megohmmeter to
the thermal detector terminals, as this may
damage them.
If the correct insulation value is not reached, the motor
should be dried out as follows :
4.1.1 - By heating externally
- Place the motor in an oven at 70°C, ensuring all
openings are free of obstruction, for 24 hours or more
until the correct insulation is obtained.
- Take care to rise the temperature gradually to avoid
condensation.
- While drying, make regular checks on the insulation
values which will tend to fall initially and then rise.
4.1.2 - By heating internally
Connect the three motor winding in serial. Supply them
with a low DC voltage (to get 10% of rated current calcu-
lated with the winding resistors) increase voltage until
the current get 50% of rated current. It must be supplied
during approximatly four hours. The temperature of the
housing shall not exeed 50°C.
4.2 - Installation
Incorrect lifting methods may be dangerous
for personnel and may cause serious dam-
age to the machine.
Check that the machine weight is below the lifting capac-
ity of any sling or hook. The only way to properly lift the
complete machine is to attach it by points which are rec-
ommended (see figure 1 page 3).
Motors should be installed in a location where cooling air
(which must be low in humidity, free of dust, steam and
corrosive gases) can enter and exit freely. Ensure that
warm air emissions cannot be drawn back in (motor
against a wall for example).
2
X2 - X3 - AC Gearless
Receipt - Storage
Commissioning
IMPORTANT :
Contact with any live or rotating parts
may cause injury. Never touch the motor
during operation, as this is likely to be-
come hot.
Installation, servicing and maintenance must only be
carried out by a qualified member of staff.
LEROY-SOMER cannot be held responsible for any
problems arising from failure to comply with the
instructions in this manual.
The machine is under warranty as long as it is not
partially or completely dismantled without LS
assistance (or approval) during the warranty period.
CAUTION
Make sure the car is mechanically immobilized before
performing any maintenance on the motor or on the
brake.

4.2.1 - Cleaning
- Release the brake by hand with the brake lever, or re-
lease the brake springs and open the brake arms, and
remove the protection which is between the brake shoes
and the brake wheel of the traction sheave.
- Remove any rust-protective wax from the sheave.
Do not use any abrasive material, but rather
a cloth soaked in alcohol or solvent. Use a
solvent wich does not contain oil to avoid oil
contamination of the friction surfaces.
WARNING: only use the solvent in a ventilated area.
If the machines are delivered with a bed-plate and a
secondary sheave, the secondary sheave has to be
cleaned as well (see above).
3
X2 - X3 - AC Gearless
Commissioning
4.2.2 - Mechanical installation
- The gearless machine must be installed on a bed-plate
not subject to vibrations, and must be secured by four
M20 bolts,nuts, and washers. The bolts must be secured
only when ropes, car, counter-weight, traction sheave
and secondary sheave are perfectly aligned. When this
operation is completed, weld the plates attached to the U
bolts of the secondary sheave if it is supplied.
When the gearless is placed in the basement and
strenght of the ropes on the traction sheave is upward it
has to be fixed on the bedplate with two additive nuts M 20
placed on position B left and right side of the machine.
- Before installing the ropes, check that the traction
sheave can rotate freely by releasing the brake and ro-
tating the sheave by hand.
- When the ropes are installed, the two rope guards (RG)
must be screwed .
The gearless can also be placed on right or left side
fixed on the bedplate by four M 20 nuts (A, B, C, D), rope
strenght orientated downward.
4.3 - Connection
-See connection diagrams in the terminal boxes (motor,
brake and blower if installed).
- Connect the motor using cables and connectors of an
appropriate size.
- Check also that connectors are crimped onto
the cables.
Be particularly careful when screwing on the terminal
nuts (if done incorrectly, this could damage the
connections by overheating : see figure 2).
- During installation, include safety devices to protect the
motor.
- Connect the supply cables to the terminals U1, V1, W1
as per IEC 34.1 to have clock-wise rotation of the shaft.
- If case, connect thermistors to the remote control.
- Connect the earth terminal.
Correct
Incorrect
fig. 2
AB
CD
RG
fig. 1

4.3.1 - Brake adjustment
4.3.2 - Definitions and limits
x : Plunger stroke travel.
l 0: Torque adjust screw lengh when brake lining are
just on contact with brake drum (no pressure).
∆l : Additive torque adjust screw length to induce a
pressure on brake lining and get a brake torque.
4.3.3 - Torque adjustment
Before carrying out the adjustments, disconnect the
brake supply. Screw 55 must not be in contact with the
brake arm .Ensure the car immobilization by appropriate
mechanical system.
- Unlock counter nut 51.
- Adjustl 0 by tightening the nut 45 at maximum with
nude hand.
- Adjust brake torque by adjusting the spring length with
nut 45.
- Lock counter nut 51.
Brake torque is proportional to : ∆l
4
X2 -X3 - AC Gearless
Commissioning
4.3.4 - Plunger stroke adjustment
- Unlock counter nut 56.
- Tighten brake stroke adjust screw 55 to its shortest po-
sition.
- Supply brake with holding voltage to place the brake
plunger in open position.
- Untighten screw 55 to place it in contact with brake arm
31 (maximum possible whith hand), brake arms must still
remain closed. At that position x = x0.
- Continue to untighten srew 98 with a spanner to get
x = x0+ 2mm
- Lock counter nut 56.
- Once it has be done for the two side of the brake, trac-
tion sheave must be free.
- Switch off brake supply.
For passenger safety :
- Check that brake torque is the required one.
- Check that brake manual release nut rotating gap
exist and is sufficient.
4.3.5 - Microswitch adjustment
- Adjust the position of the two microswitches 272 once
all operations here above are done.
55
31
272
42
x
56
31
∆l
42
42
31
l0 ∆l41
45
45
51

5. - SERVICING
5.1 - First operation
Check that electrical machinery is properly
grounded before carrying out the first
operation to protect the staff from electric
shock.
Run the machine and check the following points :
- abnormal noise,
- vibrations,
- action of switch contacts,
- all fixings and electrical connections are fully tightened,
- the state of the bearings,
- abnormal running,
- that the blower motor (when installed) is rotating in the
correct direction.
- Check also the currrent and the voltage on the machine
when it is running with rated load.
Important: never run the machine without the blower
switched on.
5.2 - Maintenance
During service visits, for an optimized life expectancy of
the machine, proceed with the following operations.
5
X2- X3 - AC Gearless
Servicing
5.2.1 - Every month
-Check for loose bolts, nuts or electrical connections.
- Check for abnormal noise, vibration or abnormal
running.
- Remove grease traces (if any) on the sheave and
brake drum 28.
5.2.2 - After one month, then every six months
-Check the brake springs are properly adjusted. If they
are not, the springs must be readjusted (see section
4.4.2).
- Check the plunger stroke is properly adjusted. If it is
not, the plunger stroke must be readjusted (see section
4.4.3).
5.2.3 - Every five years
- Secondary sheave bearing maintenance
Unscrew the two plugs. Replace them by a grease nip-
ple. Grease with 70 to 75 g of the original grease (speci-
fied on Name plate).
Periodicity
Parts 1 month 6 months 1 year 5 years
Inspection and adjustments
Bolts and nuts tightening ●
Noise & vibration inspection ●
Brake spring and stroke inspections ●
Greasing secondary sheave
6. - ORDERING SPARE PARTS
To ensure efficient after-sales service, each order for
spare parts should specify the following elements :
- motor type and serial n°
and for each part :
- part description and (or) identification n°,
- quantity ordered.
For instant identification, please give the reference of the
document used for ordering (plan or manual n°). Details
of the type and serial n°appear on the motor identifica-
tion plate.
X2 - X3 - AC Gearless
Ordering spare parts

6
X2 - X3 - AC Gearless
Brake system
31
31
55
272
42
98
45
48
51
56
41
Part list*
Rep. Qty Designation Rep. Qty Designation
31 2Brake arm 51 2Torque adjustment counter nut
41 2Torque adjustment screw 55 2Stroke adjustment screw
42 2Torque adjustment spring 56 2Stroke adjustment counter nut
45 2Torque adjustment nut 98 2Plunger axle
48 1Brake manual release lever 272 2Microswitch

7
X2 - X3 - AC Gearless
135
31
135
28
61
120
31 48
28
42
Part list*
Rep. Qty Designation
28 1Sheave and drum
31 2Brake arm
42 2Torque adjustment spring
48 1Brake manual release lever
61 2Lining
120 2Brake terminal box
135 1Motor terminal box

MOTEURS LEROY-SOMER 16015 ANGOULÊME CEDEX - FRANCE
RCS ANGOULÊME N°B 671 820 223
S.A. au capital de 131 910 700 F