Service manual

M411433 57
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
71. CYLINDER SPROCKET/UPPER SHEAVE
Nonreversing Tumblers
Refer to Figure 30.
a. Support drive guard and remove screws
holding guard to rear of tumbler. Refer to
Figure 28.
b. Loosen jam nut on idler sprocket and move
sprocket to the right to relieve chain tension.
c. Run chain off idler sprocket and drive sprocket
or run belt off upper sheave.
d. Lift chain off cylinder sprocket.
NOTE: After installing chain on drive and idler
sprockets, adjust chain. Refer to Adjustments
Section.
e. Remove pal nut and jam nut, and pry sprocket
from cylinder shaft.
Reversing Tumblers
Refer to Figure 31.
a. Remove drive chain from cylinder sprocket or
two belts from drive.
b. Remove three attaching bolts from sprocket or
sheave hub.
c. Turn these three bolts into the threaded holes in
the hub, and “jack” the hub and sprocket apart.
d. Remove hub, sprocket or belt, key and spacer.
NOTE: After installing chain on drive and idler,
adjust chain or belts. Refer to Adjustments Section.
72. CYLINDER ASSEMBLY
a. Remove control panel.
b. Open loading door.
c. While supporting door, remove upper hinge
bolt holding door to hinge bracket. Refer to
Figure 21.
d. Remove door from hinge bracket.
NOTE: Nylon washer must be in place on lower pin
when reinstalling loading door.
e. Remove control panel.
f. Unlock, open and remove lint panel. Set aside
to prevent damage.
g. Support front panel and remove screws (and
three speed nuts) holding front panel to tumbler
cabinet. Refer to Figure 24.
NOTE: When removing front panel, lower panel
slightly to make sure door switch rod clears hole in
cabinet.
h. Remove drive chain or belt.
i. Remove key and cylinder sprocket or sheave.
j. Pull cylinder out through front of cabinet.
NOTE: When removing cylinder out through front
of cabinet, spread cabinet slightly so cylinder will
clear cabinet sides.
NOTE: After reinstalling chain on cylinder, drive
and idler sprockets, adjust chain. Refer to
Adjustments Section.
NOTE: After installing cylinder and shaft, adjust
cylinder clearance. Refer to Adjustments Section.
k. Reinstall drive guard on tumbler.