SENSOR GP-PRESSURE 1578394 - Caterpillar

3116 (4KG, 1SK) Marine EnginesDescription of Change: A fuel priming pump is available for installation on either left or right hand service fuel filters. The fuel priming pump can help remove air from the fuel system after filter changes or other fuel system maintenance. Adaptable To: The components of the 110-4394 Fuel Priming Pump Group are identified in Illustration 1 and Chart A.
Illustration 1. Location of components of the 110-4394 Fuel Priming Pump Group. See "LEFT HAND SERVICE" for the components required and the procedure to install a fuel priming pump on left hand service fuel filters. See "RIGHT HAND SERVICE" for the components required and the procedure to install a fuel priming pump on right hand service fuel filters.
Left Hand Service
New Components Require
Chart B and Illustration 2 identify the new components required to install the fuel priming pump on engines equipped with a left hand service fuel filter.
Installation Procedure
1. Remove the tube that connects the fuel transfer pump outlet to the fuel filter base inlet. Remove the fitting from the fuel filter base inlet.2. See Illustration 1. Remove pump assembly (3) from valve assembly (1). Use care not to loose ball (4) and spring (5).3. Install valve assembly (1) in the fuel filter base inlet. Assemble fuel priming pump group (9). Be sure ball (4) and spring (5) are in place before installing pump assembly (3) on valve assembly (1). Fuel priming pump group (9) should be oriented as