106971-0971 ZEXEL 9 400 618 666 BOSCH INJECTION-PUMP ASSEMBLY 9400618666 1069710971 1671397174

Operations that may cause product damage are identified by notice labels in this publication.
Introduction
This Tool Operating Manual contains two filter installation procedures. This first procedure is for installing a primary filter system. This is a coarse filter and will protect the transfer pump from contamination in the oil. The second procedure outlines installing a secondary filter which is designed to protect injection pumps from contaminated oil. Fuel injection pumps used on the 3208 Engine are one example of a fuel injection pump that requires the secondary filter installation.It will be the dealer choice as to which optional filter is installed on the test stand. Determine what type of filtering will be required most often, and install the appropriate type of filtering system. These filters can only be added to the 15 horsepower test stands.Secondary Filter
Nomenclature
Illustration 1. Nomenclature for Secondary Filter Installation. Refer to Chart A for item identification. Fabricated Parts
All the parts required for this installation can be ordered from Caterpillar Parts Distribution, except bracket (1). This must be manufactured by the bench owner, using the dimensions provided below.This bracket can be made from common SAE1018 steel. Weld the two pieces together.
Illustration 2. Filter Mounting Bracket. Refer to Chart B for dimensions. Installation
Assemble the Fuel Filter
1. Install 053-0088 Fitting (17) with 3J-1907 Seal (18) into the inlet port (left side) of the filter base. (This converts a number 6 STOP port to NPT). Install 5P-4455 Fitting (19) into fitting (17).2. Install 2R-6806 Fitting (15) with 3J-1907 Seal (16) into the outlet port (right side) of the filter base.3. Install 6N-4414 Cover (7) onto the filter base using 1P-0436 Gasket (8), 4B-3388/6V-2317 (9), and OS-1616/6V-8490 Bolt (10).4. Install 9S-4182 Plug (5) with 6V-5084 O-ring Seal (6) into the top of the filter base.5. Install the filter base assembly onto filter bracket (1),