Detent Hole (3) Installation

1.Afterthebearingassemblyhasbeenisinstalled,removethe three “dog type” allen head set screws (B) to allow detents to be drilled. See Figure 26 below.

The detent holes will prevent the

NOTE bushing from sliding away from the bearing spacer when the pump is under load.

MAINTENANCE (PUMP)

3.If this procedure is not followed closely the heavy loading of the bearing during pumping operation causes the Timken™ cone bearings to create lateral forces which will move the taper bushing and allow the Timken™ cone bearings to separate from the race and subsequently fail.

Position the ‘O’ring on the O.D.of the

NOTE bearing spacer during assembly to assure proper bearing adjustment.

2.Use a 9/32” drill to “detent” half (minimum 1/8” deep).Then “chase”thethreadswitha3/8-16bottomtapandblowoutthe chips after drilling, to be certain that the “dog type” allen set screwsbottominthedetentstopreventthetaperbushingfrom sliding laterally.

4.Drill(detent)theshaftundertheallensetscrews“B”toprevent the bushing from the sliding away from the bearing spacer when the pump is under a load.

Figure 26. Detent Holes

PAGE 42 — MAYCO C30HDZ PUMP — OPERATION AND PARTS MANUAL — REV. #12 (04/03/12)

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Multiquip C30HDZ manual Detent Hole 3 Installation, Detent holes will prevent, Position the ‘O’ring on the O.D.of
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