TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 1094 of 1275
TM 9-2350-311-20-1
CHAPTER 14
ENGINE AND BATTERY WINTERIZATION KIT
GENERAL
This chapter provides instructions for removal, disassembly, assembly, and installation of specific components of the
winterization kit. Since the kit encompasses several components, each with an individual set of procedures, the chapter
has been divided into an overall diagram and nine major components of the winterization kit.
The winterization kit provides a standby heating system to prevent freezing of the engine coolant and battery electrolyte
during shutdown periods in extreme cold or arctic temperatures. Coolant is circulated through the heater, engine, and
battery heater by an electrically driven coolant pump furnished with the kit.
CONTENTS
PAGE
14-1
WINTERIZATION KIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-2
14-2
EXHAUST OUTLET ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-4
14-3
BATTERY HEATER AND INSULATION BOXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-5
14-4
COOLANT PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-7
14-5
FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-9
14-6
FUEL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-10
14-7
COOLANT HEATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-12
14-8
COOLANT HEATER WIRING HARNESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-14
14-9
HEATER CONTROL BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..14-16
14-10
GRILLE COVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . .
...14-17
14-1
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