Alliance Laundry Systems HC20BC2 - Page 21

Maintenance
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c. For flat-pulley drive systems, verify allowable
distance of belt from edge of pulley. Refer to
Table 3 below.
d. For variable-speed models only, verify that
V-belts are properly tensioned by applying a
set force to the belts and measuring the
deflection to determine the belt tension. Refer
to Table 4 for the acceptable belt’s tension
ranges. Belt tension measurements should be
taken as close to the center of the belt span as
possible. Refer to Figure 10.
Figure 10
Flat-Pulley Alignment
Model
Allowable
Distance from Edge
20 3/32 in. (2 mm)
25 3/32 in. (2 mm)
30 3/32 in. (2 mm)
40 3/32 in. (2 mm)
50 – 60 3/8 in. (10 mm)
Table 3
H039I
1 Deflection
2 Span Length
1
2
Belt Tension Testing for Variable-Speed Models
Model Belt Belt Span Deflection Range
Force
Min – Max
35, 40 Motor-Basket 16.9 in. (428 mm) 5/16 – 11/32 in. (7.9 – 8.7 mm) 6.1 – 7.4 lbs. (27 – 33 N)
50, 60 Motor-Basket 16.8 in. (426 mm) 9/32 – 5/16 in. (7.1 – 7.9 mm) 6.1 – 7.4 lbs. (27 – 33 N)
80 Motor-Basket
Single Belt
22.1 in. (561 mm) 15/32 – 1/2 in. (11.9 – 12.7 mm) 4.9 – 7.3 lbs. (21.8 – 31.5 N)
80 Motor-Basket
Banded Belt
22.1 in. (561 mm) 7/32 – 1/4 in. (5.08 – 6.35 mm) 23 – 26 lbs. (102.3 – 115.6 N)
Tab le 4