- Caterpillar Products:Machine Engines All 3500 Series
- Caterpillar Products: 3500 Family Generator Sets and Power Modules 3500 Family Pumpers 3500C Engines G3500 Family Generator Sets and Power Modules
- Engine:Commercial G3500 Family
- Engine:Generator Set 3500 Series
- Engine:Marine 3500 Series
- Caterpillar Products: 3500 Family Generator Sets and Power Modules 3500 Family Pumpers 3500C Engines G3500 Family Generator Sets and Power Modules
Introduction
This special instruction describes the importance of proper handling of the water pumps listed in table 1.
| Affected Part Numbers |
| 1W-0410 Auxiliary Water Pump Gp |
| 2W-9726 Water Pump Gp |
| 7E-9781 Auxiliary Water Pump Gp |
| 10R-1072 Water Pump Gp |
| 10R-1672 Auxiliary Water Pump Gp |
| 10R-1673 Auxiliary Water Pump Gp |
| 10R-9395 Auxiliary Water Pump Gp |
| 212-8166 Auxiliary Water Pump Gp |
| 212-8167 Auxiliary Water Pump Gp |
| 212-8169 Auxiliary Water Pump Gp |
| 262-4378 Water Pump Seal As |
| 291-4311 Auxiliary Water Pump Gp |
| 291-4312 Auxiliary Water Pump Gp |
| 291-4313 Auxiliary Water Pump Gp |
| 315-5137 Auxiliary Sea Water Pump Gp |
| 317-5901 Auxiliary Water Pump Gp |
Proper Handling of the Pump
 | |
| Illustration 1 | g01013726 |
Ceramic seal in the jacket water pump (typical example) | |
 | |
| Illustration 2 | g01013748 |
Ceramic seal in the auxiliary water pump (typical example) | |
Improper handling can damage the ceramic seal that is used in the water pumps. If the shaft is not properly supported during shipping or if the shaft is bumped during installation, the ceramic seal that is internal to the pump may crack. The crack will cause a coolant leak from the weep hole. Do not make hard contact with the shaft or with the impeller during installation of the pump. Completely insert the pump during installation. Do not allow the shaft or the impeller to support the weight of the pump during installation.