TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
2-75.
V-BELTS MAINTENANCE - continued.
c.
Turn adjusting screw (3) counterclockwise until belts (7) are loose on two sheaves (6 and 8).
d.
Inspect belts (7) for cracks, dry rot, and excessive wear. Replace belts as a set if required.
NOTE
If any belt is damaged, replace all five belts with new ones. Do not replace one belt or use a mismatched
set.
e.
Remove five belts (7) from two sheaves (6 and 8).
INSTALLATION
NOTE
If any belt is damaged, replace all five belts with new ones. Do not replace one belt or use a mismatched
set.
a.
Install five belts (7) on two sheaves (6 and 8).
b.
Position straightedge across top of pump assembly sheave (8) and electric motor sheave (6) as shown.
c.
Turn adjusting screw (3) clockwise until belt deflection is 0 5 inch (1 3 cm) midway between two sheaves (6
and 8).
d.
Tighten locknut (4) on adjusting screw (3).
e.
Position straightedge (11) across front of pump assembly sheave (8) and electric motor sheave (6).
f.
Measure distance from straightedge (11) to outer belt groove (9) of pump assembly sheave (8).
g.
Measure distance from straightedge (11) to outer belt groove (10) of electric motor sheave (6).
If distances measured in steps b and c are not the same ( 0 08 inch), reposition motor mounting plate (2)
h.
as required. If correct measurement cannot be obtained, perform sheave alinement procedure.
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