HALE AP, Technical Manual

Page: 87 / 177

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Table 28. CBP Volute R&R Tools And Consumables List – CONTINUED
Standard Tools Special Tools Consumables
Hooked-end Dental Pick
(or Hose Removal Tool)
O-RING, <See FSG–PL–01482 Sheet 4 Item 9>
(Volute to Pump Head)
Gasket <See FSG–PL–01482 Sheet 4 Item 10>
(Volute to Pump Head)
Loctite Clean-Up Solvent
Perform the following to remove and replace the volute.
NOTES
Remove any suction tube and/or piping blocking access to the pump per
OEM/equipment manufacturer instructions.
Remove any discharge piping blocking access to the pump per OEM/equipment
manufacturer instructions.
CBP Volute Removal
A. If pump is still in apparatus, match mark/note/tag and then disconnect suc-
tion, discharge, and cooling lines.
B. If pump is still in apparatus, tag and disconnect any electrical wiring.
C. Match mark volute and pump head to ensure proper alignment during reas-
sembly.
D. If pump is still in apparatus, disconnect ONLY mounting bracket(s) required
for volute removal.
E. Remove eight (8) 3/8 — 16 X 7/8–in bolts that hold volute to pump head.
Using 9/16-in wrench (or socket and ratchet [set CCW]), loosen eight (8) 1.
3/8 — 16 X 7/8–in bolts.
Remove eight (8) 3/8 — 16 X 7/8–in bolts. 2.
NOTE
Do NOT damage brass clearance rings or impeller during volute removal.
F. Remove volute from pump head.
G. Remove all remaining gasket material from mating surfaces of volute and
pump head.
Measure clearance rings and impeller hub, replace if out-of-tolerance (see Table 23). If the
clearance rings have failed, perform Clearance Ring R&R (see paragraph 5.8.7.2 on page 110).
If the impeller has failed, perform Impeller R&R (see paragraph 5.8.4.7 on page 83). If the me-
chanical seal has failed, perform Mechanical Seal R&R (see paragraph 5.8.4.9 on page 90).
CBP Volute Installation
A. Prepare volute for installation.
Install a new gasket. 1.
Align gasket with screw holes in pump head. 2.