CLIP 3E9867 - Caterpillar

Remove & Install Carburetor (High Pressure Gas)
1. Remove two locknuts and clamps (2) and remove the tube assembly.2. Remove locknut and clamp (5).3. Remove four bolts and washers (3).4. Remove four bolts (4) and remove the carburetor. The following steps are for the installation of the carburetor.5. Inspect all gaskets and replace if necessary. Place the gaskets and carburetor in position and install four bolts (4).6. Install the tube assembly base with gasket. Install four bolts and washers (3).7. Install the tube assembly. Install locknut and clamp (5).8. Install the tube assembly. Install two locknuts and clamps (2).Disassemble Carburetor (High Pressure Gas)
Start By:a. remove carburetor 1. Put carburetor in vise for disassembly.2. Put identification on elbow (2), nipple and carburetor (1) for assembly purposes.3. Remove carburetor (1) from nipple. 4. Remove five screws (4) and cover (3) from carburetor body. 5. Remove spring (5) and diaphragm assembly (6) from carburetor body. 6. Remove four screws from diaphragm assembly. Remove body (7), gasket (8), diaphragm (9) and plate (10). 7. Remove two screws (11) and throttle plate (12). 8. Remove throttle lever (13), lever stop and shaft as a unit. 9. Remove retaining rings (14) and seals (15) from each side of the throttle housing. 10. Remove bearing (17) from each side of the throttle housing.11. Remove idle mixture screw (18) and spring (16) from the housing.Assemble Carburetor (High Pressure Gas)
1. Install bearing (1) with tooling (A) to the bottom of the bearing bore in the throttle housing.2. Put seal (2) in position in the seal and retainer counterbore.3. Install retainer (3) with tooling (A).4. Turn throttle housing over and repeat steps 1 through 3.5. Install spring (5) and idle screw (4). Turn the idle screw four full turns open from the closed position.
Be careful when throttle shaft (6) is installed not to cause damage to the seals.
6. Install throttle lever (6), lever stop and shaft.7. Put throttle plate (7) in position on the throttle shaft. Use 9S3263 Thread Lock on the screw threads and install the screws that hold the throttle plate in position finger tight.8. Turn the throttle plate with throttle lever (6) from the fully closed to fully open position to make an alignment of the throttle plate in the center of the bore. Tighten the screws and make sure that the throttle lever turns freely. 9. Install the diaphragm assembly as follows:a. install gasket (9) on body (8).b. install diaphragm (10).c. install cover (11).d. install four screws. 10. Put diaphragm assembly (12) in position on carburetor body. Install spring (13) on diaphragm assembly.11. Turn power mixture adjustment (14) to the center position between "R" (rich) and "L" (lean). 12. Put cover (15) in position on the carburetor body and install the five screws to hold the cover. 13. Install carburetor assembly (16) in position on the nipple. Make an alignment of the marks on the elbow nipple and carburetor assembly.End By:a. install carburetor