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Removal of Pulley Assembly
1.
Remove all the cap screws sequentially.
2.
Remove the set screw.
3.
For the large driver pulley, insert the cap
screws into the threaded holes of the
bushing. For the small driven pulley, insert
the cap screws into the threaded holes of
the pulley.
4.
Tighten the cap screws against the face until
the screw force releases the pulley from the
bushing.
Removing or Attaching the Pump End
All of the BB-4 series pump ends have a quick release pump clamp and detachable pump end which
facilitates the servicing of pump units and minimizes down-time in the field by allowing the quick
replacement of pump ends.
To remove pump from engine:
Lift pump clamp lever.
1.
Release tension-adjusting knob at
2.
bottom of clamp.
Remove clamp by tapping bottom end of
3.
each half clamp.
Remove pump from engine.
4.
To attach the pump end to the engine:
Place flexible buffer coupling on engine
1.
coupling pins.
Align flexible buffer coupling holes to
2.
pump end coupling pins and install.
Install pump clamp with the lever on the
3.
top side (tension knob at the bottom).
Finger tighten tension knob located at
4.
bottom of clamp to obtain a light
pressure on clamp ring.
CAUTION: Apply FINGER PRESSURE ONLY to close pump clamp lever. Excessive pressure will
damage or break the clamp link.
04/2015
WATERAX BB-4 Owner's Manual
Align pins
and holes
Clamp lever
Tension knob
Page 21
Remove set
screw
Use threaded
holes to extract
bushing
Use buffer
21
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