MOTOR GP-GEROTOR 4404623 - Caterpillar

1. Disconnect the governor control linkage (1) from the governor control channel assembly.2. Disconnect the wiring from the shutoff solenoid.3. Remove the fuel ratio control sensing line (2).4. Remove the governor-to-right aftercooler housing mounting bracket (4).5. Remove the two governor mounting bolts (5) from rear of governor.6. Remove the four governor mounting bolts (3) from the fuel injection pump housing. Two of the mounting bolts cannot be removed from governor until governor is disassembled.7. Remove the governor.Install Governor
1. Position the governor on engine with lever on governor engaged in slot in rack. Install the four mounting bolts.2. Install the two governor bracket mounting bolts in rear of governor.3. Install the governor-to-right aftercooler housing mounting bracket.4. Install the fuel ratio control sensing line.5. Connect the wiring to shutoff solenoid.6. Connect control linkage to channel assembly.Disassemble Governor
preparatory steps: a) remove governorb) remove fuel ratio control with override 1. Remove the high and low idle screw cover. Remove the cover assembly plate, mounting bolts, nuts and screws. Remove the high and low idle screws. Remove mounting bolt (1) and cover assembly (2).2. Disassemble cover assembly (2) as follows: Remove lever retaining bolts and locks. Remove the two levers. Remove shaft assembly. Remove seals from cover assembly. Remove terminal assembly.3. Remove the rack stop collar retaining screw (3). Remove rack stop collar, collar and spring. Remove rack stop group. 4. Remove two governor housing assembly retaining screws (4). Remove the governor housing assembly (5), spring (6), seat assembly (7) and washer-type spring (8).5. Disassemble governor housing assembly (5) as follows. Remove speed limiter plunger, spring, plug and gasket. Remove lever assembly-to-shaft retaining bolt and lock. Remove the shaft and governor control lever. Remove the lever assembly. Remove bearings and seal from housing assembly.6. Disassemble the lever assembly as follows: Remove plunger and spring retaining pin from lever assembly. Remove the spring and plunger. 7. Remove the fuel rack lever retaining pin (9). Remove lever (10). Remove weight assembly-to-body assembly retaining bolts (11) and lock. Remove oil tube assembly (12). Remove the weight piston and valve assemblies (13) as a unit. 8. Remove seat retaining ring (14). Drive pin (15) out of seat (16) and remove seat. Remove bearing and sleeve assembly, washers, spring and bolt (17) from seat. Remove the bearing retaining ring from sleeve. Remove bearing and races from sleeve. 9. Remove the pin assembly (18) from weight assembly (19). Remove weight assembly-to-cylinder retaining ring (20). Remove weight assembly from cylinder. Remove sleeve and O-ring seal from cylinder. Remove the piston and valve from cylinder. 10. Remove the governor drive pinion retaining bolts (21), lock and plate. Remove drive pinion (22). Remove weight assembly drive gear retaining nut (23) and washer. Remove shaft from body assembly. Separate adapter assembly (24) from body assembly (25). Remove lip-type seal from adapter assembly. 11. Remove the oil pump gear (26). Using extension (A), press oil pump shaft and gear assembly (27) out of body assembly. Remove weight assembly drive gear. Remove oil pump bypass