Service manual

58 M411433
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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73. TRUNNION HOUSING ASSEMBLY
a. Remove cylinder assembly.
b. Remove upper guide rail bolt and nut.
c. Remove four cap screws holding trunnion
housing assembly to rear of cabinet. Refer to
Figure 30 or Figure 31.
d. Remove housing from tumbler.
e. Remove four bearing retainer screws holding
the small bearing in housing. Refer to
Figure 33.
f. Use a hammer and wood dowel to remove
bearings.
IMPORTANT: When installing new bearings, apply
a film of bearing retaining compound to the bearing
cavity surfaces in the housing.
NOTE: If a press is not available to install bearings,
carefully tap bearings into housing.
g. Reinstall drive guard on tumbler. Refer to
Figure 28.
Figure 32
IDLER
HOUSING
(INCLUDES
SNAP RING)
BEARING
BOLT
LOCKWASHER
NUT
KEY
WASHER
IDLER
HOUSING
IDLER
SHAFT
BEARING
DRIVE
CHAIN
DRIVE
SPROCKET
NUT
LOCKWASHER
SLEEVE
IDLER
SPROCKET
CONNECTING LINK
(Included with
Chain
CARRIAGE
BOLT
TU131-PT
Figure 33
LARGE
BEARING
TRUNNION
HOUSING
SMALL
BEARING
BEARING
RETAINER
SCREW
WASHER
TU192-PT