DRIVE BELT ADJUSTMENT
o
Lock power off
o
Remove guard, drive side
o
Check sheave alignment by placing a straight edge or a stretched
string across the sheave faces so that it touches all four points of
contact. Misalignment of more than one half of one degree (1/8” in
12”) may adversely affect belt life, cause belt rollover, and/or cause
internal belt damage
o
Ideal tension is the lowest tension at which the belt will not slip under
peak load conditions
o
Check tension frequently during the first 48 hours of run-in operation.
o
Over tensioning shortens belt and bearing life
o
Keep belts free of foreign material which may cause slippage
o
Make V-drive inspection on a periodic basis. Tension only when
slipping. Never apply belt dressing as this will damage the belt and
cause early failure
o
Adjust tensioning by measuring the distance between sheaves center
to center. At the midpoint between centers, apply a force
(perpendicular to the span) large enough to deflect the belt 1/64” for
each inch of span length. For example, the deflection of a 100 inch
span would be 100/64 or 1-9/16 inches. Compare this measured force
to the accompanying chart. If the force is between “normal” and
1-1/2 times “normal”, the drive tension would be satisfactory. A force
below the “normal” value indicates an under-tensioned drive. If the
force is more than 1-1/2 times “normal”, the drive is tighter than it
needs to be
Model No.
Deflection
Normal
New Belt
800-1000/15
3/8”
18.0 lbs.
27.0 lbs.
800-1000/10
3/8”
17.6 lbs.
26.4 lbs.
(See Fig. 7, page 25)
16
Summary of Contents for 800-1000 Series
Page 19: ...Figure 1 SHREDDER OPERATION 19 ...
Page 20: ...Figure 2 CHAIN LUBRICATION 20 ...
Page 21: ...Figure 3 REDUCER LUBRICATION PN TA5215H40 21 ...
Page 22: ...Figure 4 CONVEYOR BELT TAKE UP 22 ...
Page 23: ...Figure 5 CHAIN SAG 23 ...
Page 25: ...Figure 7 DRIVE BELT ADJUSTMENT 25 ...
Page 35: ......
