2-66. V-BELTS AND SHEAVES REPLACE (MODELS WPES-10, WPES-20, AND WPES-30) - continued.
b . I n s t a l l a t i o n
Install key (13) on motor shaft and position hub (11) on end of motor shaft.
Using a soft face mallet, drive hub (11) onto motor shaft until distance from inner face of pulley is equal to
measured distance at disassembly. Tighten setscrew ().
Install sheave (7) on hub (11) and secure with three lockwashers (9) and screws (8).
Position key (19) and hub (18) on
shaft of pump assembly.
Using a rubber mallet tap on
sheave to move it in or out as
required to obtain a distance of
0.25 to 0.50 between end of shaft
and outside surface of hub.
When sheave is properly
positioned, tighten setscrew (17).
Position sheave (16) on hub (18)
and install lockwashers (15) and
Motor sheave may extend out past
pump sheave. If this is the case
ruler must be held against motor
Hold edge of a 36 inch ruler
against pump sheave (16) [or
motor sheave (7)] and measure
distance between sheave and ruler.
If measurable distance is noted,
record that distance and remove
pump sheave as above. Reistall
sheave, moving it in or out by the
If any belt is damaged, replace all five belts with new ones. Do not replace less than five
belts or use a mismatched set.
Install five belts (6) on sheaves (16 and 7) and turn adjusting screw (5) clockwise until belt, at midpoint between
sheaves can be depressed approximately 1/2 inch with thumbs.
2-258 Change 1