Service manual

M411433 53
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
65. DRIVE CHAIN
Nonreversing Tumblers
a. Support drive guard and remove screws
holding guard to rear of tumbler. Refer to
Figure 28.
b. Loosen jam nut on idler sprocket locking bolt
and move sprocket to the right to relieve chain
tension. Refer to Figure 30.
c. Run chain off drive sprocket and lift chain off
cylinder sprocket.
d. Reinstall chain and drive guard.
Reversing Tumblers
a. Support drive guard and remove screws
holding guard to rear of tumbler. Refer to
Figure 28.
b. Loosen nut on idler housing attaching bolt and
slide idler housing to top of slotted mounting
holes in guide rails. Refer to Figure 31. This
will provide slack in drive chain for removal
from sprockets.
c. Adjust chain following installation.
66. IDLER HOUSING ASSEMBLY
Nonreversing Tumblers
Refer to Figure 30.
a. Remove drive guard.
b. Remove drive belt.
c. Loosen jam nut on chain idler sprocket and
move sprocket to right. (Non-reversing tumbler
only.)
d. Run chain off the drive sprocket.
e. While supporting the idler housing assembly,
remove the upper and lower bolts, lock washers
and nuts holding the guide rail to the trunnion
housing and motor bracket.
f. Pull complete idler housing assembly with
guide rails away from the back of the tumbler.
g. After repairing or replacing idler housing
assembly, reinstall chain, belt and drive guard.
Reversing Tumblers
a. Support drive guard and remove screws
holding guard to rear of tumbler. Refer to
Figure 28.
b. Remove two screws holding belt guard
assembly to motor bracket. Refer to Figure 29.
Remove belt guard.
c. Remove chain. Refer to Paragraph 65.
d. Loosen nut on idler housing attaching bolt.
Refer to Figure 31. Drop idler housing
assembly to bottom of slots.
e. Remove upper and lower bolts and nuts from
guide rail. Refer to Figure 31. Guide rail out
and slip belt out from under guide rails.
f. Slip new belt under guide rail and onto sheave,
and motor pulley. Refer to Figure 31.
NOTE: After reinstalling belt and chain, adjust
belt, then adjust chain. Refer to Adjustments
Section.
g. Support drive guard and remove screws
holding guard to rear of tumbler. Refer to
Figure 28.
h. Leave the belt guard attached to the top of the
drive guard.
i. Loosen nut on idler housing attaching bolt and
slide idler housing to top of slotted mounting
holes in guide rails. Refer to Figure 31. This
will provide slack in drive chain for removal.
j. While supporting the idler housing assembly,
remove the upper and lower bolts, lockwashers
and nuts holding the guide rail to the trunnion
housing and motor bracket, Figure 31.
k. Pull complete idler housing assembly with
guide rails away from the back of the tumbler.
l. After repairing or replacing idler housing
assembly, reinstall chain, belt, drive guard and
belt guard.