TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
2-75.
V-BELTS MAINTENANCE- continued.
i.
Tighten four bolts (1) securing mounting plate (2) on stand (5).
SHEAVE ALINEMENT
a.
Remove three bolts (15) and lockwashers (14).
NOTE
Mark location of motor sheave on motor shaft before removal.
b.
Reinstall three bolts (15) in threaded holes in motor sheave (6) and screw in alternately until motor sheave
(6) is off motor hub (13).
c
Loosen setscrew (12) until motor hub (13) is just snug on shaft of motor (16).
d.
Manually adjust position of hub on motor shaft as required.
e
Remove three bolts (15) from motor sheave (6).
f.
Position motor sheave (6) on motor hub (13) with unthreaded holes in motor sheave alined with threaded
holes in motor hub
g
Install thee bolts (15) and lockwashers (14) snug. Do not tighten bolts at this time.
h.
Position straightedge (11) across front of pump sheave (8) and motor sheave (6).
i.
Measure distance from straightedge (11) to outer belt groove (9) of pump sheave (8).
j.
Measure distance from straightedge (11) to outer belt groove (10) of motor sheave (6).
NOTE
If motor hub (13) has been removed, position hub on motor shaft
about 2.75 inches from face of motor. This distance will provide a
starting point for further adjustment.
k.
If distances measured in steps h and i are not the same, loosen three bolts (15) and reposition motor hub
(13) and motor sheave (6) on shaft of motor (16) until distances are the same.
l.
Mark location of motor hub (13) on shaft of motor (16).
m.
Remove three bolts (15), lockwashers (14), and motor sheave (6) from motor hub (13), then tighten setscrew
(12).
n.
Reinstall motor sheave (6), lockwashers (14), and bolts (15) on motor hub (13).
o.
Install V-belts.
p.
Recheck belt alinement.
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