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Lubrication & Maint./2000 Hour/24 Month
RG,RG34710,5583 –19–28JAN02–1/3
Adjusting Variable Speed (Droop) on
Generator Set Engines
RG12066 –UN–29JAN02
Droop Adjustment Screw
A—Adjustment Screw
B—Fast Idle Adjustment
C—Slow Idle Adjustment
Stanadyne Mechanical Injection Pumps Only
1. Warm engine to normal operating temperature.
2. When necessary, disconnect throttle linkage or cable.
3. Adjust slow idle (C) and adjust fast idle (B) speed
when necessary.
4. Run engine at fast idle, then apply load until reaching
rated speed.
5. Check power. Adjust with the screw (A) if needed.
6. Remove load from engine.
7. Again check and adjust fast idle if screw (A) has been
turned.
8. Repeat procedure until both the engine power and the
fast idle speed are correct.
9. Reinstall throttle linkage if previously removed.
Continued on next page
40-1
110306
PN=94