TM 5-3740-218-13&P
Table 4-2. Unit Troubleshooting
Malfunction
Test or Inspection
Corrective Action
5. ENGINE EXHAUST SMOKEY.
Step 1.
Check for too much oil in engine.
Drain excess oil from engine.
Step 2.
Check for improperly adjusted carburetor.
Refer to Malfunction 2, step 7.
6. ENGINE SURGES OR OVERSPEEDS.
Step 1.
Check for improperly adjusted carburetor.
Refer to Malfunction 2, step 7.
Step 2.
Check for improperly adjusted governor control rod.
Refer to Malfunction 2, step 7.
7. ENGINE MISSES OR RUNS ERRATICALLY.
Step 1.
Check for water in fuel system.
Drain fuel and refill tank with clean fuel (item 19, Appendix E).
Step 2.
Check for defective spark plug.
Replace (para 4-25).
8. ENGINE VIBRATES.
Step 1.
Check for loose engine and pump assembly mounting hardware.
Tighten and adjust all hardware.
Step 2.
Check for worn drive shaft coupling and star.
Replace drive shaft coupling and star (para 4-27).
BUCKET/CROSSTUBE ASSEMBLY
9. SPRAY SYSTEM CONTROL VALVE DOES NOT OPEN.
Step 1.
Check for loose harness connection.
Tighten.
Step 2.
Check for defective wires in harness.
Replace (para 4-37).
Step 3.
Check for defective hand control unit.
Replace hand control unit (para 4-38).
