REGULATOR GP-FUEL PRESSURE 1981897 - Caterpillar

Disassemble Rocker Shaft Assemblies
START BY:a. remove rocker shaft assemblies 1. Remove retainer (1) from the end of the shaft.2. Remove the washers and rocker arm (2). 3. Use tool (A) to remove the pin that holds bracket (3) to the rocker arm shaft.4. Remove bracket (3), rocker arm (4) and the spring.5. Remove the remainder of the rocker arms. The center brackets do not have pins.Assemble Rocker Shaft Assemblies
Make sure all parts of the rocker shaft assembly are clean before assembly. 1. Put clean engine oil on shaft (3).2. Install the center springs, rocker arms and bracket.3. Install spring (1), rocker arm (4) and bracket (2).4. Put tape around the shaft on each side of bracket (2) as shown. Put the hole in bracket (2) in alignment with the hole in shaft (3). Put a mark on each piece of tape in alignment with the hole in bracket (2).5. Install pin (5) until it is extended 8.6 mm (.34 in.) above the surface of bracket (2). Make sure pin (5) is in alignment with the marks on the tape before pin is installed. Remove the tape. 6. Install rocker arm (6), washers (7) and retainer (8). Install enough washers until the end play on each end of the shaft is 0.30 to 1.40 mm (.012 to .055 in.).END BY:a. install rocker shaft assemblies