General Pump KS Owner Manual - Manual (Page 14)

GENERAL PUMP
A member of the Interpump Group
KS SERIES
Page 14
c) Set belt tension according to the Manufacturer’s specifications; and excessive value will abnormally stress
the bearing, reduce its duration and cause premature wear of the pulley. The tension value depends on
different variables as indicated in paragraph 9.12.
d) Belt length has a natural tolerance ≤ ± 0.75%; for this reason the three belts must be purchased in pairs.
e) Follow the belt tension direction as indicated in fig. 10; for different needs, please contact the Technical or
Customer Service Department.
f) Carefully align driver pulley and driven pulley races.
9.12 Definition of Belt Static Tension Values
Static tension depends on:
a) The center distance between the two pulleys (belt length).
b) The load due to the belt’s static tension.
c) The number of belts.
d) The angle of wrap of the smallest pulley.
e) Average Speed
f) Etc.
For belts with an XPB profile, the diagram in fig. 12 allows to obtain values of the static tension that must be applied vs.
the center distance between pulleys.
Ref 300655 Rev D
09-12