ROD & BEARING AS-CYLINDER 1838925 - Caterpillar

following procedures are used in order to functionally check a Type III governor. The housing cover plug and the seal for the throttle stop do not need to be removed. This check is intended as an aid to determine if a governor is functioning correctly.
Install the governor on the governor calibration bench. Refer to the Testing and Adjusting, "Installation Of Governor On 1U-7326 Governor Calibration Bench " section in this manual for installation procedures.Note: The load stop is set higher than 9.00 mm (0.354 inch) and the calibration must be set. Refer to the Testing and Adjusting, "Setting the Governor Load Stop Dimension For More Than 9.00 mm" section in this manual.Note: Follow all of the operating procedures for the governor calibration bench that are specified in the procedure for checking other types of governors.All specifications for the governor adjustment procedure are in the Technical Marketing Information (TMI). When you check a previously adjusted governor, the tolerance ( ) factor must be doubled. This will be referred to as an expanded tolerance.
Adjust the speed of the calibration bench to the LOAD STOP rpm that is specified in the TMI. Slowly move the throttle to the LOW IDLE position and back to the THROTTLE STOP position. Do not move the throttle again during this checking procedure.
Check the governor output dimension. The governor output dimension should be within the expanded tolerance dimension in "FUNC CHECK #2" of the TMI.
Adjust the speed of the calibration bench to the "THROT STOP ADJ" rpm from the TMI. Wait for one minute in order for the output dimension to be within the "THROT STOP ADJ" expanded tolerance dimension. If the output dimension is still changing, you may need to wait longer.The governor is operating correctly and the governor can be used again without any adjustment if the performance of the governor is acceptable according to the tolerance checks. If the governor fails any of the above tests, follow the procedures toward the end of the checking procedure for the other types of governors in the Testing and Adjusting, "Governor (Types I, II, IV, and V) - Check".
Reduce the speed of the calibration bench to the lowest setting. Turn the switch to the OFF position. The tachometer will turn off automatically after a short period of time.
After the governor has been installed on the engine and the low idle speed has been adjusted, seal the throttle adjustment screw with the lockwire and the tamper resistant seal.