Usage:
Remove Carburetor
1. Shut off gas supply line to gas pressure regulator.
2. Loosen clamps (1) and slide hose away from the carburetor.
3. Disconnect control rod (2) from the carburetor lever.
4. Remove clamp (3) from the joint assembly.
5. Remove bolts (4) and remove carburetor (5) and gasket from the aftercooler housing.
Install Carburetor
1. Put a new gasket and carburetor (1) in position and fasten to the aftercooler housing.
2. Slide hose (3) into position on the carburetor and tighten clamps (2).
3. Connect the joint assembly to the carburetor with clamp (5), bolt and nut. Tighten nut to a torque of 49 ± 4 lb.in. (5.5 ± N·m).
4. Fasten control rod (4) to the lever on the carburetor.
5. Check the linkage adjustment. See GOVERNOR LINKAGE ADJUSTMENT in TESTING AND ADJUSTING.
6. Turn on gas supply line to gas pressure regulator.
Disassemble Carburetor
start by:
a) remove carburetor
1. Remove bolts (1), washers, gasket and adapter (2) from the carburetor.
2. Remove screws (4), lockwashers and cover (3).
3. Remove spring (5) and diaphragm assembly (6).
4. Remove screws (7) and throttle plate (disc) (9).
5. Remove throttle lever (8), lever stop and shaft as a unit.
6. Remove seal (10) from the nipple.
7. Remove idle screw (11) and spring.
NOTE: Put identification marks on throttle (base) (13) and base assembly for use at assembly.
8. Remove screws (12), lockwashers, throttle base (13) and gasket from the base assembly.
9. Use a screwdriver to remove retainer (14).
10. Remove seal (15).
11. Remove bearing (16) from the throttle base (13).
12. Turn the throttle base (13) over and do Steps 9 through 11.
Assemble Carburetor
1. Install bearing (1) with tooling (A) to the bottom of the bearing bore in throttle base (2).
2. Put seal (4) in position in the seal and retainer counterbore.
3. Install retainer (3) with tooling (A).
4. Turn throttle base (2) over and do Steps 1 through 3.
5. Make an alignment of the identification marks and install the gasket and throttle base (2) on base assembly (5).
| NOTICE |
|---|
Be careful when the throttle shaft is installed not to cause damage to the seals. |
6. Install idle screw (8), spring and seal (7).
7. Turn power mixture adjustment (6) to center position between "R" (rich) and "L" (lean).
| NOTICE |
|---|
Be careful when the throttle shaft is installed not to cause damage to the seals. |
8. Install throttle lever (9), lever stop and shaft.
9. Put throttle plate (disc) (10) in position on the throttle shaft. Install the screws and lockwashers that hold the throttle plate (disc) in position finger tight.
10. Turn the throttle plate (disc) with throttle lever (9) from fully closed to fully open position to put the throttle plate (disc) in the center of the bore. Tighten the screws and make sure that the throttle lever turns freely.
11. Put diaphragm assembly (12) in position on base assembly (5). Install spring (11) on diaphragm assembly (12).
12. Put cover (13) in position on the diaphragm assembly. Install the five bolts and lockwashers that hold the cover in position.
13. Install adapter (14) and gasket to the throttle base.
end by:
a) install carburetor