SRP - User manual
Ref.: RX182/006
Version 01/2017 - English
This document must not be reproduced nor information therein disclosed without our authorization
Page 25 / 28
8.4 Preload setting
– linear drive
1. Move the SRP to the point of the rack where the rack topography is at a medium value (refer to
chapter 7.1).
2. Clean the shafts and coupling bores.
3.
Motor side
: make sure that the coupling screws are tightened to the
T
F
torque. Check that the
tightening of the coupling is well balanced between the two screws.
4.
Opposite side of the motor
: the coupling screws must be released.
5.
Opposite side of the motor
: to lock the system, hold the locking tool in the coupling and block it
from rotation (see below).
6. To eliminate the system backlash, apply approximately twice the application preload torque on the
bevel gearbox female hex with a torque wrench. Once this torque is reached, reduce the torque
slowly to a value near 0 and apply the application preload torque
Tp
.
7. While holding the preload torque, tighten the coupling screws one after the other in several passes
until the tightening torque T
F
is reached. Check that the tightening of the coupling is well balanced
between the two screws.
WARNING!
In order to insure a correct preload, it is mandatory to respect the previous instructions
(screws tightened on motor side, special tooling placed on opposite side) and to degrease
the parts.
WARNING!
SPECIFIC TORQUE WRENH REQUIRED!
A torque wrench with indicator is mandatory for the preload operation. You must read the
torque value on the torque wrench.
Coupling screws
Torque T
F
Torque wrench
Torque T
P
Locking tool
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