Loading ...
Loading ...
Loading ...
_ Installation Instructions
speed, turn the outer half of the adjustable pulley counter-
clockwise.
14. Replace key if unit has keyway type pulley.
15. Tighten set screw(s).
16. Put on belt.
Figure 14 Checking Tension and Deflection
Belt Tension Chart
MODEL POUNDS TENSION
FOR 1/4" DEFLECTION
7-1/2 ton 3.5 - 4
6-1/3 ton 3 - 3.5
5 Ton 2.5 - 3
3 & 4 Ton 2 - 2.5
1054584
17. Turn motor adjustment bolt clockwise until the belt has
enough tension at the proper deflection. Use one of
the commercially available belt tension gauges to set
the correct tension at the proper deflection (see
Figure 14).
Figure 15
Combination Units
I Checking Pulley Alignment
Misaligned Misaligned
1054584
18. Use a straight-edge (angle iron, straight piece of
board or anything with a good straight surface or edge)
to check the alignment of the blower pulley with blower
motor pulley (see Figure 15).
It may be necessary to back the tension off the belt
temporarily and tighten one of the motor mount bolts
before it is possible to adjust the angle of the blower
motor.
19. Tighten all four blower motor mount bolts.
[_ 513 01 1002 O0
Loading ...
Loading ...
Loading ...