AFTERCOOLER AS 1851017 - Caterpillar

1. Remove the seat retaining ring (1) and pin (2). 2. Remove the seat (3), bolt (4), washers (5), and spring (6).3. Remove the sleeve and bearing assembly from the cylinder and weight assemblies. 4. Remove the retaining ring (7) from sleeve (8).5. Remove bearing (9) and races (10) from sleeve (8). 6. Remove the valve (11) from piston (12).7. Remove the cylinder-to-weight assembly retaining ring (13).8. Remove the weight assembly (14).9. Remove piston (12) and sleeve (15) from the cylinder (16).10. Remove the O-ring seal from the sleeve (15). 11. Remove the speed limiter plug (17), spring (18), and plunger (19) from the governor housing.12. Remove the high idle screw (20) and low idle screw (21).13. Remove the governor control lever. 14. Remove the lever assembly-to-shaft assembly retaining bolt (22) and lock.15. Remove the shaft assembly (23) and lever assembly (24) from governor housing.Assemble Governor
1. Install lever and shaft into governor housing.2. Install the high and low idle screws in the governor housing.3. Install the speed limiter plug, spring, and plunger in the governor housing. 4. Install the O-ring seal (3) on sleeve (4).5. Install piston (2) and sleeve (4) in the cylinder (1). 6. Position the weight assembly (6) on cylinder (7), and install retaining ring (5). 7. Install the valve (9) in piston (10).8. Install the bearing and races in sleeve. Install retaining ring. Install the sleeve and bearing assembly (8) on valve (9). 9. Position the seat (12), bolt (11), washers, and spring on the valve (9). Install the retaining pin (14) and ring (13).concluding steps: a) connect governor to fuel injection pump housingb) install fuel injection pump housing and governor as a unitc) set rack and adjust governor (See FUEL RACK SETTING and GOVERNOR ADJUSTMENTS in TESTING AND ADJUSTING)