| Required Tools | ||
|---|---|---|
| Part Number | Part Description | Qty |
| 1U-7299 | Rack Adjusting Wrench | 1 |
| 1U-7300 | Hex Wrench | 1 |
| 1U-7316 | Calibration Pin Group | 1 |
| 1U-7431 | Adjusting Tool | 1 |
| 1U-6672 | Rack Adjusting Wrench | 1 |
| 1U-5548 | Combination Wrench | 1 |
| 1U-7056 | Combination Wrench | 1 |
| 5P-4205 | Tee Wrench | 1 |
| 9U-5120 | Spanner Wrench | 1 |
| 6V-6106 | Dial Indicator | 1 |
| 1U-8815 | Indicator Contact Point | 1 |
| 1U-8869 | Dial Indicator | 1 |
| 6V-2030 | Extension | 1 |
The following procedures are used to adjust Type VI governors after the governors have been assembled. There are certain governor adjustments that must be made during governor assembly. Refer to the Disassembly and Assembly, "Governor (Type) - Assemble" section in this manual for additional information.
- Install the governor on the 1U-7326 Governor Calibration Bench. Refer to the Testing and Adjusting, "Installation of Governor on 1U-7326 Governor Calibration Bench " section in this manual.
- Verify the position of the throttle lever. Refer to the Testing and Adjusting, "Throttle Lever Orientation (Types IV, V, VI, VII And Some III) - Check" section in this manual.
- If the throttle lever is positioned correctly on the governor, proceed with Step 4. If the throttle lever is not positioned correctly, refer to the Testing and Adjusting, "Throttle Lever (Types IV, V, VI, VII And Some III) - Remove" and Testing and Adjusting, "Throttle Lever (Types IV, V, VI, VII And Some III) - Install" sections in this manual.
Note: If the governor is equipped with a fuel ratio control, a regulated air supply of 140 to 210 kPa (20 to 30 psi) must be connected to the fuel ratio control during the adjusting procedure.
- After the first setting procedure is completed, remove the plug from the access hole for the dual horsepower adjustment (10). Install Tool (1) in the governor.
Note: Thread Tool (1) into the governor until the Tool bottoms out. This will ensure that Low Horsepower is fully engaged.
 | |
| Illustration 1 | g00521427 |
Dual Horsepower Mechanism ( Type VI) (1) O-ring (2) Plug (access hole) (3) Oil gallery (4) Seal (5) Spring (6) Valve cavity (7) Collar (8) Piston assembly (9) Nut (10) Setscrew | |
 | |
| Illustration 2 | g00667120 |
(1) Adjusting Tool (Dual HP) | |
- To set the dual horsepower mechanism, adjust the speed of the calibration bench to the "LOAD STOP ADJ" rpm that is specified in the TMI. Install a 1U-7300 Hex Wrench into the access hole for the dual horsepower adjustment (10) and through Tool (1). Adjust the dual horsepower setscrew (10) to the output dimension for the "DUAL POWERSTOP ADJ" that is specified in the TMI.
- Increase the speed of the calibration bench by a minimum of 100 rpm. Then reduce the speed back to the original "LOAD STOP ADJ" rpm in order to check the governor output dimension again.
If the "LOAD STOP ADJ" dimension is not within the specified "RECHECK TOL", perform Step 5 again.
- Remove Tool (1) and install the O-ring and the threaded plug. Tighten the threaded plug to a torque of 50 ± 5 N·m (37 ± 4 lb ft).