Manitowoc Grove GMK 5250L Maintenance Manual page 99

Maintenance manual
GMK5250L
•
Familiarise yourself with the correct operation of the frequency
measuring equipment;
•
Correct the initial tension on the tension tube (if required) until the
prescribed measure value has been achieved.
•
Check the tension on a newly installed V-belt only after 4 operating hours
(oper. hrs.) and after 24 operating hours (oper. hrs.).
à
Separate operating manual .
•
Turn on the frequency measuring
equipment (1) – it is ready for acoustic
measurement.
•
Hold the measuring head (3) over the
V-belt (4).
•
Hit the V-belt (4) with an object (tool) so that
it vibrates.
•
Read the measured value on the display (2):
new V-belt: 102.8 Hz;
used V-belt: 90.2 Hz.
3 302 744 en
Maintenance work on the carrier
7.3 Engine
7 - 23