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Gorman-Rupp Pumps 68A2-B 818301 and up User Manual

Page 14

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60 SERIES

OM−01467

PAGE B − 7

INSTALLATION

er at the measured belt span. Set the small O-ring
on the deflection force scale to zero.

Place the tension tester squarely on the belt at the
center of the belt span. Apply force on the plunger,
perpendicular to the belt span, until the bottom of
the large O-ring is even with the top of the next belt,
or with the bottom of a straight edge laid across the
sheaves.

Read the force applied from the bottom of the small

O-ring on the deflection force scale. Compare this

force with the value shown in Table 1 or 2 and ad-

just the tension accordingly. Note that the tension

for new belts is higher than that for used belts to

allow for expected belt stretching. Do not over-ten-

sion used belts to the higher deflection forces

shown for new belts.