HALE AP, Technical Manual

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5.8.4 Level 1 Procedures
If pump access permits, selected pump components (see Figure 20, Figure 21, or Figure 22) can
be removed and replaced without removing the pump and gearbox assembly from the apparatus.
Discharge and suction port hoses/plumbing may require removal before the selected pump
component R&R procedure can be performed. Follow OEM instructions/procedures to remove
and install discharge and/or suction port hoses/plumbing when required for pump component
access. The following pump components can be removed and replaced without removing the
pump and gearbox assembly from the apparatus.
• Gaskets and O-rings • Pump Shaft Oil Seal
•
Mechanical Seal
•
Input Shaft Oil Seal
Air and/or water leaks may occur at the volute joints as a result of gasket or O-ring damage or
wear. This may be indicated by symptoms of cavitation or poor performance (see section 5.1,
Troubleshooting) or be visually noticeable as water stains or mineral deposits appearing from the
volute to pump head joint.
5.8.4.1
RSD Suction Head R&R
In addition to gasket/O-ring failure the suction head requires removal to examine or access in-
ternal pump components (suction side clearance ring, inducer, or impeller). Typically the suction
head would not require replacement unless it has been damaged by allowing the pump to freeze
with water in it or a large piece of debris was allowed into the pump by not using or maintaining
strainers.
NOTE
If the joint between the suction head and the volute appears to be leaking water or
the suction head is damaged, suction head removal is required. If a leak is indicated,
water staining will appear on the paint between the assemblies. Additionally mineral
deposits may also indicate a leak at the joint.
Refer to Table 26 for a list of tools and/or consumables required for this procedure.
Table 25. RDS Suction Head R&R Tools And Consumables List
Standard Tools Special Tools Consumables
PPE
(Eye and Hand Protection)
None Shop Rag(s) (As Required)
5/8-in Wrench
(Or Ratchet And Socket)
(Or Pass Thru Ratchet)
O-ring Lubricant (See Table 20)
Hooked-end Dental Pick (or
Hose Removal Tool)
O-RING <See FSG–PL-01487, Sheet 4, Item 30>
(Suction Head To Volute)
Gasket Scrapper Gasket <See FSG–PL-01487, Sheet 4, Item 3>
(Suction Head To Volute)
Non-marring Hammer Suction Head: (ONLY ONE REQUIRED – SELECT FROM:)
<See FSG–PL-01487, Sheet 4, Table B>
Loctite™ Clean-Up Solvent
Loctite™ 243 (Or Equivalent)