Reducer Mounting; Input Shaft Sheave Mounting; Torque Arm Mounting; Motor Location - Nidec LEROY-SOMER POULIBLOC 2000 Instalación

1.1.3 - Reducer mounting (fi g. 3)
- Fit bushing reducer assembly onto driven machine shaft (5).
Note: on large bore bushing, take care special key fi ts into
hollow hub keyway.
- Slide unit to desired position. It should not be mounted such
that dimension "A" is less than 6 mm and greater than one shaft
diameter.
- Tighten locking ring (3) with special wrench (supplied)
allowing the reducer to draw up the bushing (2). Do not exceed
70 N.m of torque on the locking ring.
- Insert and tighten set screw (6).
Note: inspect and tighten tapered bushing after 8 hours of use.
To remove bushing or reducer, reverse above procedures.
Do not remove screw ref. 299 of part list.
Note: protective output shaft cap can be removed in applications
where driven shaft is mounted through hollow shaft. In other
applications, keep in place for protection against dirt and water.
fi g. 3

1.1.4 - Input shaft sheave mounting

Remove protective material from input shaft and clean it with
cleaning solvent, if necessary, to remove any residue remaining
on shaft.
Mount sheave on input shaft as near as possible to shaft
shoulder because excessive overhung loads could occur and
fi g. 4
fi g. 6
14
INSTALLATION - POULIBLOC 2000
greatly reduce the life of the bearings (fi g. 4). In particular do
not hammer on reducer or sheave in mounting it. If diffi culties
occur in the mounting of the sheave, it is advised to use a soft
mallet (neoprene type) or heat the sheave for easy installation.
Warning: excessive belt tension can greatly reduce V-belt life
and damage bearings (motor, reducer). Follow V-belt
manufacturers instructions and recommendations.
Once sheaves and V-belts have been installed, check for
proper alignment.
Caution: for safety, user must provide a protective guard
mounted around the V-belt and sheave.

1.1.5 - Torque arm mounting

Attach the torque arm housing bracket to the reducer housing.
Three positions are recommended, although eight positions
are possible (fi g. 6).
Assemble the torque arm and attach the torque arm fl oor
support to a rigid base.
Since all the reactive forces go through the torque arm, it is
most adventageous to mount the torque arm at 90° to a line
between the hollow shaft and the torque arm holding bolt (fi g.
7, 8 & 9).
The torque arm must allways be mounted so the reactive
forces are in tension with the reducer. This is dependent upon
the rotation of the output shaft; mount torque arm in:
- section A for clockwise rotation (fi g. 5a);
- section B for counter-clockwise rotation (fi g. 5b).

1.1.6 - Motor location

Tension of V-belt is adjusted by the torque arm. Install the
motor such that the belt be at 90° from the center line between
driven and input shaft.
Section A : clockwise rotation
Poulibloc seen from output
fi g. 5a
fi g. 7
Do not restrain the housing of Poulibloc on the built
of the machine; use the torque arm bracket.
Section B : counter-clockwise rotation
shaft end side
fi g. 8
Installation guide - POULIBLOC 2000-3000
fi g. 5b
fi g. 9
3097 en - 2019.02 / g