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Maintenance
23
F8138701 (EN)
•
Deflection.
Refer to
Figure 20
. Loosen motor
mounting bolts and slide motor along motor
plate to change belt span length. Belt tension
measurements should be taken as close to the
center of the belt span as possible. For every
inch of span length, the belt should deflect
1/64 inch (0.40 mm). Thus, a belt with span
length of 50 inches should deflect 50/64 inch
(19.84 mm). An initial (run-in) force of
5.25 pounds should be used to set the belt
tension. An operating (normal) force of
3.5 pounds should be used after the washer-
extractor has been operated for a few hours.
Figure 20
b. Verify that V-belts are properly aligned by
checking pulley alignment. Place a
straightedge across both pulley faces. The
straightedge should make contact with the
pulleys in four places. Refer to
Figure 21
.
Figure 21
P044I
1
Deflection
2
Span Length
P044I
2
1
P045I
1
Drive Motor
2
Drive Pulley
3
Belt
4
Straightedge
5
Driven Pulley
1
2
3
4
5
