Hale SMR - Manual (Page 100)

Maintenance and Repair
6-22 Stainless Max Series Pumps
Also see Section 4: “Preventive Maintenance,” headings:
❑
Replace Gearbox Oil, on page 4-8
❑
Replace Pedestal Oil - SMR Series, on page 4-9
3. Disconnect tachometer sender option, if equipped.
4. With the tail end of the pump (impeller) shaft exposed, remove
the hex nut and lock washer pair. See Figure 6-11: “Rear Oil
Seal Breakdown, Pedestal” on page 6-21. A strap wrench
may be needed to hold the shaft while removing the nut.
5. Remove the drive flange and shaft key and set safely aside.
6. Remove the four screws and hardware securing the oil seal
housing to the bearing housing. Slide the housing from the
pump shaft. See Figure 6-11: “Rear Oil Seal Breakdown,
Pedestal” on page 6-21.
7. Remove and examine the O-ring seal and the seal wear ring,
mounted on the pump shaft. Both must be replaced.
For O-ring, order Hale p/n: 05682/02; for seal wear ring, order
p/n: 60008.
Installation Notes
See Figures 6-11: “Rear Oil Seal Breakdown” on page 6-21.
To install, follow the preceding steps in the reverse order, paying
attention to the following:
❑
Review preceding section “Before You Begin...,” beginning on
page 6-1.
❑
Pay attention to section “Cleaning and Inspection Guidelines,”
beginning on page 6-6 to ensure a thorough installation.
❑
Evenly press-in a new oil seal in the housing until flush with
the housing lip. See Figure 6-10: “Rear Oil Seal Breakdown”
on page 6-21. Lightly tap the seal around the edges to ensure
an “even” seat.
❑
Place the assembly onto the main bearing housing and thread
the four screws and hardware finger-tight only.
Note: The tapped boss for the tachometer sender option must
be towards the top of the bearing housing, as viewed from the
drive end.
❑
In a crisscross pattern, tighten the screws ensuring that the
seal housing seats flat on the face of the bearing.