Service manual

M411433 61
Section 5 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
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j. Using the guide rails as supports, swing motor
and fan assembly out and away from rear of
tumbler.
k. While supporting motor and fan assembly,
remove the lower guide rail bolt.
l. Remove four sets of nuts, washers and bolts
holding mounting bracket to motor. Refer to
Figure 35.
m. Remove locknut and jam nut holding fan on
motor shaft. Refer to Figure 36. Pull fan off
motor shaft.
NOTE: Fan is keyed to motor shaft and may have to
be removed using a puller. Look for a spacer washer
at the bottom of the fan keyway. Take care to avoid
losing or damaging the washer.
n. Remove spacer washer from motor shaft. Refer
to Figure 36.
o. Loosen two setscrews holding motor pulley to
motor shaft. Refer to Figure 36. Remove motor
pulley.
NOTE: A puller may be required to remove pulley
from motor shaft.
NOTE: After installing motor and fan assembly,
adjust belt, then adjust chain (nonreversing models
only.) Refer to Adjustments Section.
NOTE: Belt/belt drive models have automatic
upper belt tensioning.
Figure 36
T046SE3A
FAN
LOCKNUT
JAM NUT
SPACER
WASHER
FAN HOUSING
COVER
FAN
KEY
MOTOR
PULLEY
PULLEY
KEY
MOTOR