HALE AP, Technical Manual

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102
5.8.4.13 Pump Head R&R Bench Procedures
All oil seals are removed and replaced as part of a bench procedure since pump head or gearbox
removal is required for access.
Only the pump shaft oil seal is located in the pump. All other oil seals are part of the Gearbox and
their bench procedure is found in Section 5.9, Gearbox. Refer to paragraph 5.8.4.13.1, Pump
Shaft Oil Seal And O-ring, for the pump shaft oil seal bench procedure. Refer to paragraph
5.9.2.1.1, Input Shaft Oil Seal (ONLY), for the input shaft oil seal R & R procedure.
5.8.4.13.1
Pump Shaft Oil Seal Bench Procedure
The pump shaft oil seal is located in the pump head on the drive side. This procedure requires
pump assembly and gearbox (unit) removal and then pump removal from the gearbox prior to
performance. This leases the pump head as a loose item that can be taken to a bench for oil
seal R&R. Use paragraph 5.8.2.1, General Pump Removal From The Apparatus (see page 56), to
remove the unit from the apparatus.
After removing the unit, the pump portion (assemblies) must be removed from the gearbox to
isolate the pump head. Use the Removal portion of the following procedures to isolate the pump
head as a separate item.
•
Volute R&R for an AP/MBP pump use paragraph 5.8.4.3, for a CBP pump use para-
graph 5.8.4.4, and a RSD pump for use paragraph 5.8.4.2.
•
Inducer R&R for an MBP/RSD pump use paragraph 5.8.4.5
•
Impeller R&R for an AP pump use paragraph 5.8.4.7, for a CBP pump use paragraph 5.8.4.8,
and for an MBP/RSD pump use paragraph 5.8.4.6.
•
Mechanic Seal R&R for an AP/CBP/MBP pump use paragraph 5.8.4.9 and for a RSD use
paragraph 5.8.4.10.)
• Pump Head R&R for an AP/CBP/MBP pump use paragraph 5.8.4.11 and for a RSD use par-
agraph 5.8.4.12.
Refer to Table 37 for a list of tools and/or consumables required for this procedure.
Table 37. Pump Shaft Oil Seal Bench Procedure Tools And Consumables List
Standard Tools Special Tools Consumables
PPE
(Eye and Hand Protection)
None Shop Rag(s) (As Required)
PPE (for Handling Oil) Loctite Clean-Up Solvent™ (or equivalent)
Seal Removal Tool Loctite 680™ (or equivalent)
Seal Driver Kit Pump Shaft Oil Seal
<See FSG–PL-01483, Sheet 4, Item 13> (AP)
<See FSG–PL-01482, Sheet 4, Item 20> (CBP)
<See FSG–PL-01486, Sheet 4, Item 16> (MBP)
<See FSG–PL-01487, Sheet 4, Item 16> (RSD)
Non-marring Hammer
Perform the following to remove and replace the pump shaft oil seal.
Pump Shaft Oil Seal Removal
A. Remove pump shaft oil seal as follows.