TM 5-2420-230-24-2
Fuel Pump Control Lever and Spring (005-018)
B3.9 and B5.9 Series Engines
Page 5-56
Section 5 - Fuel System - Group 05
Bleed all air from the fuel system. Refer to Procedure
006-003.
Fuel Pump Control Lever and Spring
(005-018)
Adjust (005-018-029)
The amount of fuel injected, and subsequently the speed
and power from the engine, is controlled by the fuel control
lever. Restricted travel of the lever can cause low power.
Always check for full travel of the lever when diagnosing
a low-power complaint.
Fuel Pump High Idle Speed (005-028)
General Information
Fuel Injection Pump Idle Adjustment Screws
The idle adjustment screw provides a stop for the lever at
low speed. The adjustment screw can be used to increase
idle speed for accessory loading or, if required, to lower the
idle speed.
The high-speed screw is set at the factory and can only be
adjusted at a certified fuel pump shop.
A - Idle Screw
B - High-Idle Screw.
Fuel Pump Idle Speed (005-029)
Adjust (005-029-029)
Fuel Control Lever Travel and Adjustment
The amount of fuel injected, and subsequently the speed
and power from the engine, is controlled by the fuel control
lever. Restricted travel of the lever can cause low power.
Always check for full travel of the lever when diagnosing
a low-power complaint.
L-916
