Powerfist 11G-2-30H, User Manual

Page: 11 / 39

11
4.4 ADJUSTING PULLEY ALIGNMENT & BELT TENSION (cont’d)
1. Belt Tension (cont’d)
Figure 4: Belt Tension
a) Remove the belt guard.
b) Loosen the motor mounting bolts.
c) Shift the motor to the point where the correct deflection exists.
d) Retighten the motor mounting bolts.
e) Check to ensure that the tension remained correct.
f) Reinstall the belt guard. All moving parts must be guarded.
2. Pulley Alignment
To check pulley alignment, remove the belt guard and place a straightedge (C in Figure 5 below)
against the pump flywheel (D in Figure 5 below). Measure and record the distance from the
straightedge to the edge of the drive belt (dimension E). Then measure the distance from the
straightedge to the edge of the drive belt again as shown by dimensions F and G. Both distances
should be the same as dimension E. If F or G is different from E, there is a misalignment that must be
corrected before the compressor is run. To correct a pulley misalignment, use the following
procedure.
a) Remove the belt guard.
b) Loosen the motor mounting bolts.
c) Loosen the setscrew on the motor pulley.
d) Align the motor pulley with the pump flywheel (E=F=G).
e) Retighten the motor pulley setscrew.
f) Adjust the proper belt tension.
g) Retighten the motor mounting bolts.
h) Reinstall the belt guard. All moving parts must be guarded.
Figure 5: Pulley Alignment
1/2” Deflection
10 Lbs Force