10
ADJUSTMENTS
10.10 BELT ADJUSTMENTS
1.
For tensioning the Primary Drive belt, with
the Auto-Tensioner pulley, use following
procedure
1.1
Loosen Scews A & B
1.2
Using spanner C on element D rotate
element clockwise until the arrow on the
tensioner arm points to the mid position
between the 0-15 mark on the element
decal.
1.3
Secure by tightening screw A followed by
B.
2.
For tensioning the Intermediate Drive belt,
with the fixed idler pulley use the following
procedure.
2.1
Slacken off the screws securing the Idler
Mount to the side plate. Move Idler into
position to tension the Belt correctly.
Tighten Securing Screws.
To ensure the belt tension is correct, use
a small amount force and twist the
intermediate belt through 90 degrees, this
then indicates the belt tension is set to
between 55-65Hz. If setting the belt
tension using a tension tester the
deflection is to be 3.5mm for a force of
32N along the main span. Re-adjust idler
pulley as per step 10.10.2.1 if required.
2.2
On starting of the Machine, if the
Intermediate belt "runs" towards the inside,
the idler adjusting screw, can be screwed
in, to favour the belt to the flange side of
the pulley. Secure locknut in the adjusted
position.
RANSOMES SMALL PEDESTRIAN RANGE
SAFETY, OPERATORS & MAINTENANCE MANUAL
Screw A on reverse of side plate
A - Twist belt through 90° as shown
Setting tension using Clavis meter (frequency - Hz).
Belt deflection method to be taken in same position.
B
C
D
A
A
GB-39