TM 9-2350-238-10DRIVER’S HEATER KIT–CONTINUEDDRIVER’S HEATER OPERATION1234567Start vehicle engine and set engine speedat fast idle (1000 to 1200 rpm) untilengine coolant has warmed to 170°F(77°c).Open HEATER SHUTOFF VALVE (1) byturning it in direction marked ON.Set DRIVER’S HEATER switch (2) to ON.Direct hot air as desired by rotatingdeflector (3) or by opening or closingsliding panel on deflector.Temperature of heated air may bedecreased by partially closing HEATERSHUTOFF VALVE (1).To shut off heater, set DRIVER’S HEATERswitch (2) to OFF, and turn HEATERSHUTOFF VALVE (1) in direction markedOFF.Inspect heater, hoses, and fittings forleaks. Check operation of heater switchand shutoff valve. If there are any leaks orheater does not operate, notify unitmaintenance personnel.WINTERIZATION KITWinterizatoin kit allows vehicle to be operatedin arctic regions. Winterization kit consists ofan engine coolant heater system, cab heater,hydraulic oil immersion heater, driver’senclosure, and vehicle closure covers, plate,boots, trays, and plugs.5-2
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