Graco 310645H Repair And Parts Manual page 20

A correctly tensioned belt will feel very tight. To
measure correct tension, apply 4-5 lbs pressure
at belt midpoint with thumb. Belt should have
approximately 1/8 in. (3.175 mm) deflection.
A loose belt will not last long. If in doubt, tighten
more.
20
5 Tighten all 4 bolts.
6 Turn belt one more
7 Replace RotoFlex HD
ti4477a
8 Replace back and front
Removing and Replacing Belt
time with your hand to
make sure teeth are
properly engaged and
tension is correct.
Pump and hose exten-
sion, page 12.
covers and hopper.
See Removing and
Replacing Hopper, Front and Back Cover, page 9.
ti4394a
ti4473a
310645H