TM 9-2320-260-102-29. OPERATION OF EXPANSIBLE VAN TRUCKS a. General. Expansible van trucks have van bodies which are 98 inches (249 centi-meters) wide when the truck is being moved, 167 inches (424.2 centimeters) wide whenthe vehicle is in place and the van body is fully expanded. M820 models have windows,heating and air-conditioning systems, and use outside electric power. M820A1 modelslack windows and air-conditioning system.Table 2-4. Differences inModelsDesignationWindowLiftgate (Power)HeatingAir ConditioningM820YesNoYesYesM820A1NoNoYesNoM820A2YesYesYesYesTable 2-5. Air ConditionersManualsAirModel No.NSNOperation/ConditioningMaintenancePartsYorkMA3-F23A4120-00-926-1116TM 5-4120-259-15TM 5-4120-259-25PTherm AirCB-36-08-3-604120-00-935-5348TM 5-4120-259-15TM 5-4120-259-25PZEKS Ind.AC 36M4120-00-168-1791TM 5-4120-310-15TM 5-4120-310-23Pb. Selecting Operating Site. Whenever possible, position van on level, firm ground.WARNINGAlways chock truck wheels if operating site is on a grade, nomatter how slight. Fill low spots under wheels with sand or similarmaterials, if needed, to get a nearly level floor line. Failure to dothis can result in injury, death, or damage to vehicle.NOTEPick the site with care so that van will be as level as possible. Jacksprovided are not used to raise van off wheels. Jacks are only usedfor leveling, with most of the weight on wheels.2-173
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