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Section 5 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
• Disconnect electrical power to the washer-extractor before servicing it.
• Close the gas shut-off valve to the washer-extractor (when applicable) before servicing it.
• Never start the washer-extractor with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W461R1
WARNING
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c. Loosen the motor mounting bolts and slide the
motor along the motor plate to relieve the
tension on the drive belt. Refer to Figure 17.
NOTE: Never install a drive belt by rolling it onto
the pulleys. Rolling the belt onto the pulleys can
damage the drive belt.
d. Remove the drive belt from the pulleys.
e. Install the new drive belt onto the pulleys.
f. Re-tension the belt. Refer to Checking Belt
Tension and Deflection section, below.
g. Reinstall any panels that were removed in Step
b.
Checking Belt Tension and Deflection:
a. Turn off power to the machine.
b. Remove the screws attaching the cage wrap and
back panels to the machine. Remove the cage
wrap and back panel. Refer to Figure 16.
c. Check drive belt tension.
(1) Using a tension gauge, check the drive belt
tension. Belt tension should be between 70
and 90 pounds (± 5 pounds). Set the initial
belt tension toward the high end of the
range.
(2) To adjust the drive belt tension, loosen the
motor mounting bolts and slide the motor
plate. Refer to Figure 17.
d. Check the belt deflection.
(1) Belt deflection measurements should be
taken as close to the center of the belt span
as possible. Refer to Figure 18.
(2) For every inch of span length, the drive belt
should deflect 1/64 inch (.4 mm). For
example, a belt with a span length of 50
inches should deflect 50/64 inch (19.84
mm).
(3) 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.
e. Reinstall any panels that were removed in Step
b.
Figure 17
PHM19
Drive
Belt
Motor
PHM1946S
Figure 18
Deflection
Span Length
P044IE3A