Alliance Laundry Systems manual 20

Maintenance

c.For flat-pulley drive systems, verify allowable distance of belt from edge of pulley as shown in Table 6 below:

Flat-Pulley Alignment

Model	Allowable
	Distance from Edge
18 – 40	.09 in. (2 mm)
50 – 60	.38 in. (10 mm)

Table 6

d.For variable-speed models only, verify that V-belts are properly tensioned by applying a set force to the belt and measuring the deflection to determine the belt tension. Refer to Table 7 for the acceptable belt tension ranges. Belt tension measurements should be taken as close to the center of the belt span as possible. Refer to Figure 11.

NOTE: Hoses and other natural rubber parts deteriorate after extended use. Hoses may develop cracks, blisters or material wear from the temperature and constant high pressure they are subjected to.

2.Check all hoses for any visible signs of deterioration. Any hose showing signs of deterioration listed above should be replaced immediately.

NOTE: All hoses should be replaced every five years.

1

2

H039I

1Deflection

2Span Length

Figure 11

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)	.31 – .34 in. (7.9 – 8.7 mm)	6.1	– 7.4 lbs. (27	– 33 N)
50, 60	Motor-Basket	16.8 in. (426 mm)	.28 – .31 in. (7.1 – 7.9 mm)	6.1	– 7.4 lbs. (27	– 33 N)
80	Motor-Basket	22.1 in. (561 mm)	.47 – .5in. (11.9 – 12.7 mm)	4.9 –	7.3 lbs. (21.8	– 31.5 N)

Table 7

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