TM 9-2350-256-10
Section II. TROUBLESHOOTING PROCEDURES
3-2.
INTRODUCTION.
a.
This section contains information needed to locate and correct problems which may occur in the M88A1 Medium
Recovery Vehicle. Troubleshooting is a step-by-step method of discovering trouble or inspecting for cause and
correcting it. If a problem shows up that you cannot fix, is not listed, or is not within your level of repair, notify unit
maintenance.
b.
Always be alert for unusual noises. Check out any evidence of failure or malfunction. Inspect all systems or
equipment that do not operate at peak performance. Discovering and correcting a problem when it first appears
will usually result in less serious damage to the vehicle and provide safer conditions for you and the crew.
3-3.
MALFUNCTION INDEX. The following index is provided to assist you in locating the correct troubleshooting
procedure quickly:
MALFUNCTION INDEX
Troubleshooting
Procedure No.
ENGINE
Engine fails to crank or cranks slowly when START button is pushed ................................................................. 1
Engine cranks, but fails to start ........................................................................................................................ 2
Engine starts, but fails to keep running............................................................................................................. 3
Engine stops while operating vehicle uphill during recovery
or going up a steep grade.......................................................................................................................... 4
Engine will not return to idle............................................................................................................................. 5
Engine runs roughly and misfires ..................................................................................................................... 6
Engine lacks power......................................................................................................................................... 7
Engine overheats............................................................................................................................................ 8
STARTING SYSTEM
No sound from starter when main engine START button is pushed .................................................................... 9
Starter operates slowly, but does not start engine ........................................................................................... 10
Lights dim or ventilating blower motor slows down with engine off .................................................................... 11
Low oil pressure............................................................................................................................................ 12
Excessive oil being used ............................................................................................................................... 13
No oil pressure ............................................................................................................................................. 14
Engine oil temperature exceeds 240 Fahrenheit (F) (115 Celsius [C])............................................................ 15
3-3
