
USER MANUAL BELT TENSION TESTER
This Belt Tension Tester is small in size, light in weight, easy to carry. Although
complex and advanced, it is convenient to use and operate. Its ruggedness will allow
many years of use if proper operating techniques are followed. Please read the
following instructions carefully and always keep this manual within easy reach.
1 Introduction
This Belt Tension Tester used the exclusive Micro-computer LSI circuit and crystal
time base to offer high accuracy measurement.
It can be used to measure and adjust the tension of timing and auxiliary belts fitted to
motor vehicles and other machines.
Tension can be displayed in a variety of standard and manufacturers' units. Tension
limits can be set into the instrument, either manually or automatically.
During belt tension measurement and adjustment, the belt tension
is displayed. A visual and audible indication of whether the tension is within or
outside the set limits is also given. This avoids the user having to read the display
whilst adjusting the belt. The selected tension limits, measurement units and
calibration parameters are stored in The memory of the tester, and will be
remembered even when the instrument is switched off and the batteries removed.
Can communicate with PC computer for statistics and printing by the optional cable
and software for RS232C interface.
Note: Tension checking should always be carried out in accordance with the
engine manufacturers' instructions.
Refer to STEYR MOTOR Service Manual!
2
Principle of operation
The measuring head is placed on the belt and the clamp is tightened using the torque
knob. This deflects the belt through a known angle defined by the anvil and the fixed
pillars.
A load cell attached to the clamp measures the force required to deflect the belt,
which is proportional to the tension in the belt. The output voltage from the load cell is
digitized and scaled to give the correct tension reading on the instrument display.
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