ARMY TM 9-6115-464-34
AIR FORCE 35C2-3-445-2
NAVY NAVFAC P-8-624-34
Table 2-2. TROUBLESHOOTING (CONTINUED)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 5. Improper governor adjustment.
Adjust governor (para. 3-64, Electro-hydraulic governor, or 3-65, electric governor
equipped precise sets).
5. ENGINE STOPS SUDDENLY.
Step 1. Defective fuel injection pump (Figure 3-21).
Repair or replace fuel injection pump (para 3-22).
Step 2. Defective speed switch (figure 3-15).
Repair or replace speed switch (para 3-7).
Step 3. Defective protective relay assembly (24, figure 3-119).
Test and replace relay assembly (para. 3-90).
6. ENGINE LACKS POWER.
Step 1. Defective fuel injection pump (figure 3-21).
Repair or replace fuel injection pump (para 3-22).
Step 2. Dirty or defective fuel injection nozzles (figure 3-23).
Clean, repair or replace fuel injection nozzles (para. 3-23).
Step 3. Burned or sticking valves (26 and 27, figure 3-46).
Repair or replace valves (para. 3-54).
Step 4. Weak or broken valve springs (24 and 25, figure 3-46).
Replace valve springs (para. 3-54).
Step 5. Worn or broken piston rings (20, figure 3-52).
Replace piston rings (para. 3-56).
Step 6. Hydraulic actuator unit defective or out of adjustment (Electro-hydraulic governor equipped
precise sets only) (figure 3-36).
Adjust or repair hydraulic actuator unit (para. 3-43).
2-6
