TM 5-3810-207-20/TO 36C23-3-37-12Figure 105. Back hoe gantry sheaves, removal and installation.Section IV. CRANE WINTERIZATION EQUIPMENT182.GeneralThe heater assembly, mounted in the crane-shovelcab, is used as a cold-weather, engine starting aid and,by the use of deflectors, hose, and controls, is used toheat the operator's cab, battery box, and windowdefrosters. The 24-volt electrical system furnishes thepower to control the heater assembly either manually orby the use of thermostats. A fuel pump, lines, andfittings furnish fuel for the heater assembly. A radiatorshutter is supplied and is also used as a cold-weather,engine starting aid.183.Radiator Shuttera.Removal.Remove the radiator shutter asinstructed on figure 106.b.Cleaning and Inspection.(1)Clean the radiator shutter with anapproved cleaning solution.(2)Inspect the radiator shutter for breaks,bends, and other damage. Repair orreplace damaged radiator shutter andmounting hardware as necessary.c.Installation.Install the radiator shutter asillustrated on figure 106.184.Crane Heater Assemblya.Removal.(1)Remove the control box cover.(2)Remove the crane heater assembly asinstructed on figure 107.b.Cleaning and Inspection.(1)Clean the heater and mounting hardwarewith an approved cleaning solvent and drythoroughly.(2)Inspect the heater and mounting hardwarefor breaks, bends, and other damage.147
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