TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 167 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-10.
TROUBLESHOOTING SYMPTOM INDEX.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12 HIGH OIL USE (Continued).
Step 2
Check that proper grade oil is used for climate.
Replace oil, if necessary (Refer to LO 9-2320-283-12).
Step 3
Check for loose or broken oil lines.
a
Tighten connections, or replace oil lines.
b
Notify direct support maintenance.
13 SLOW DECELERATION (ENGINE "FLOATS").
Check for air leaks in fuel pump supply lines.
Tighten connections, or replace fuel lines (para 3-28 or 3-36).
14 HIGH FUEL USE.
Check for leaking and broken fuel lines.
Tighten connections, or replace fuel lines (para 3-28 or 3-36).
15 EXHAUST FUMES IN CAB.
Check for loose or defective manifold, or leaks in turbocharger outlet or muffler inlet pipes.
a
Replace pipes as required (para 3-48 and 3-49).
b
If manifold or turbocharger is defective, notify direct support maintenance.
2-42
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