truflo TSMP Series, Installation, Operation & Maintenance Manual

Page: 51 / 67

Revision 8 – November 2011
51
MECHANICAL SEAL
Cartridge type mechanical seals are standard in the
TSMP and should be serviced by the seal manufacturer.
COUPLING GUARD
1 Inspect guard for corrosion or other defects.
2 Replace guard or repair.
GASKETS, O-RINGS, AND SEATS
NOTE: Spiral wound gaskets should not be reused.

Replace all gaskets and o-rings at each overhaul/
disassembly.

Inspect seats. They must be smooth and free of physical
defects. If remachining is necessary to restore surface, contact a
Truflo PRO Services Center for service. Dimensional relationships
must be maintained with other surfaces. Replace parts if seats are
defective beyond reasonable repair.
GENERAL
All other parts should be inspected and repaired or
replaced, as appropriate, if inspection indicates continued
use would be harmful to satisfactory and safe pump
operation.
Inspection must include, but not be limited to, the
following:

Bearing End Covers (109A) and 360A)

Labyrinthrinth Seals (332A & 333A)

Bearing Locknut (136)

Impeller Key (178) and Coupling Key (400)

Bearing Lockwasher (382)

All Nuts, Bolts and Screws
RENEWAL OF WEAR PARTS
REPLACEMENT OF IMPELLER
WEAR RINGS
Refer to Fig. 47.
Impeller wear rings (2C, 2C-1)) are held in place by a press
fit and three tack welds.
Removal of Impeller Wear Rings (2C, 2C-1))
1 Grind out tack weld.
2 Remove wear rings from impellers (2), using suitable
pry or puller tools to force rings from fits. Rings may also be
machined for removal.
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CAUTION
Excessive machining can damage ring fits and render
parts unusable.