Novexx Solutions ALX 92x, Service Manual, Page: 240 / 824

06/16 Rev. 09 SERVICE MANUAL Service Mechanics
DPM – PEM – ALX 92x
42
Setting belt tension
1. Press the belt tightener against the belt. Tigh-
ten screw [79A].
2. Measure the belt tension using one of the
methods described below.
3. If necessary, repeat steps 1 and 2 until the
belt is tightened correctly.
Measuring using a dial gauge
Tool:
Dial gauge, article number A6731
Proceeding:
1. Apply the dial gauge so, that the measure-
ment takes place in the centre of the top
strand of the belt.
2. Press the measurement bolt downwards onto
the belt [79 arrow].
Frequency measurement
Tool:
Frequency meter, e. g. from Optibelt, see ht-
tp://www.optibelt.com/engl/info_messe/tt_mi-
ni.html
Proceeding:

Measure the frequency according to the de-
vices user manual.

The measurement must be applied at the
pictured strand [80 arrow].
Measurement using a fish balance
From 04/2008 on, the cam at the belt tightener
provides a grooved pin [81 arrow], at which
the fish balance can be hooked in.
Tool:
Fish balance 10 N, Article no. 93665-02
Proceeding:
1. Pull at the grooved pin with the pulling force
indicated below.
2. Tighten the screw at the belt tightener.
Set point: 8.5
Set point: 310 Hz
Set point: 5.6 N
[79] Measuring the impression depth of the T-belt.
[80] Checking the belt tension with a frequency meter.
[81] Measuring the belt tension with a fish balance.
A