Thermo King T-500R Maintenance Manual page 166

1. BRACKET - solenoid/engine mount
2. SOLENOID
3. PLUNGER - solenoid
4. BOOT - solenoid
5. NUT - solenoid
6. DIODE
7. ROD - throttle
8. NUT
High Speed Adjustment
1. Start the unit and let it run until the engine is warmed up.
2. Adjust the setpoint to make the engine run in high speed (or use Service Test Mode HSC) and check the engine speed. See
"Specifications" for the correct high speed.
3. If the engine speed is not correct, loosen the jam nuts at both ends of the high speed adjuster in the throttle linkage.
4. Turn the high speed adjuster to change the engine speed.
5. Set the engine speed at the correct high speed and tighten both jam nuts.
6. Recheck the engine speed.
UT-Series High Speed Solenoid Components
Engine Maintenance
9. LOCKWASHER
10. ADJUSTER - speed control
11. NUT (1/4-28 LH thread)
12. BALL JOINT
13. LINK - throttle
14. LOCKWASHER
15. NUT
9-28