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PT / PG / PD REPAIR PG SERIES PUMPS 4<br />
4.16 Pump Housing<br />
Recommended tools:<br />
Socket wrench - 1/2" (13mm)<br />
Rubber / Plastic mallet<br />
Removal:<br />
1. Remove drain plug (5) from bottom of housing and<br />
drain water from pump case.<br />
2. Remove four screws (6) mounting pump housing (7)<br />
to the back pump flange (8).<br />
3. Lightly tap housing with mallet to break seal and<br />
remove housing.<br />
4. Thoroughly clean debris from pump housing (7),<br />
volute (9), and flange (8).<br />
5. Remove volute (9) and clean O-Ring (10) and intake<br />
port.<br />
5<br />
7<br />
6<br />
10<br />
12<br />
Installation:<br />
1. Check clearance between impeller (11) and volute<br />
(9). Add shims as required. See Section 4.10<br />
Adjusting Impeller Clearance.<br />
2. Inspect O-Rings (12) and (10). Grease O-Rings<br />
lightly before assembly. Make sure areas where O-<br />
Rings seat are clean.<br />
3. Mount pump housing (7) to flange (8). Secure evenly<br />
with screws (6). Torque to 26 ft.lbs. (37 Nm).<br />
Note: Pump housing MUST seal flush around rear<br />
flange. Replace pump flange if it appears warped or bent.<br />
11<br />
9<br />
8<br />
1033SD72<br />
4-13
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