Gasmizer Manual - Submarine Manufacturing and Products Ltd
Gasmizer Manual - Submarine Manufacturing and Products Ltd
Gasmizer Manual - Submarine Manufacturing and Products Ltd
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March 09<br />
APPENDIX B - COOLING WATER PUMP (GC271)<br />
Description<br />
1. The water pump is belt driven from the compressor <strong>and</strong> comprises a neoprene impeller rotating<br />
inside a bronze body. The bearings are sealed <strong>and</strong> the pump is lubricated by the system fluid. Do<br />
not run the pump with the cooling system dry as lack of fluid will damage the impeller.<br />
Dismantling<br />
1. Remove from cooler <strong>and</strong> drain pump by loosening end cover screws.<br />
2. Remove end cover screws, end cover <strong>and</strong> gasket. Lever out impeller using two rods with hooked<br />
ends.<br />
3. Loosen cam screw <strong>and</strong> remove cam. Remove wear plate.<br />
4. Remove shaft retaining ring <strong>and</strong> bolt on underside of bearing housing. Withdraw pump body from<br />
bearing housing.<br />
5. Remove seal assembly <strong>and</strong> slide slinger off shaft.<br />
6. Remove drive end shaft seal <strong>and</strong> bearing retaining ring. Press out shaft <strong>and</strong> bearings from impeller<br />
end.<br />
7. Press bearings from shaft.<br />
Servicing<br />
1. Thoroughly clean all parts <strong>and</strong> examine for signs of wear of damage <strong>and</strong> replace as necessary.<br />
2. A service kit is available <strong>and</strong> contains replacements for all parts likely to be required for normal<br />
overhaul. Service kit Part No.15295/SK229.<br />
Assembly<br />
1. Lubricate inner bearing seal with grease <strong>and</strong> press into bearing housing with spring facing<br />
impeller.<br />
2. Press bearings onto shaft until located in housing.<br />
3. Locate slinger in drain area <strong>and</strong> press haft into bearing housing. Guide slinger onto shafter until<br />
located in housing.<br />
4. Replace bearing retaining ring <strong>and</strong> shafter seal with spring facing drive end.<br />
5. Fit pump body to bearing housing <strong>and</strong> secure with bolt.<br />
6. Replace seal seat <strong>and</strong> cup rubber with seal seat face towards impeller.<br />
7. Fit Primary Seal with carbon face towards face on seal seat. Replace seal retaining ring.<br />
8. Fit wear plate, lining slot with pin in body.<br />
9. Coat top <strong>and</strong> back of cam <strong>and</strong> cam screw with non-setting jointing compound <strong>and</strong> fit in body.<br />
10.Lubricate impeller bore with a light coating of Marfak 2HD grease. Start impeller into bore with a<br />
rotary motion until spline engage <strong>and</strong> then push home.<br />
11.Replace gasket <strong>and</strong> end cover <strong>and</strong> secure with end cover screws.<br />
OM002 Rev 5 Page 138 of 168 Chap 9
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