TM 9-2350-238-10OPERATION ON UNUSUAL TERRAINExcessive speed under mud,snow, or ice conditions cancause personnel injury ordamage to equipment.MUD1234Drive with transmission in a low range.Keep vehicle moving steadily to avoiddigging in.If vehicle becomes stuck, do not dig fur-ther in by attempting to drive out. Con-nect winch wire rope to a solid objectand use winch to assist driving out or ar-range to be towed out.If freezing temperatures are expected, besure to park vehicle on solid ground toavoid having tracks freeze in mud.Remove mud from track and wheel con-tacting surfaces.SNOW1 Drive with transmission in a low range.2 Avoid grades and sharp turns whenpossible.3 Drive as straight up or down grades aspossible to equalize track load.4 It may be possible for vehicle to rideheavily crusted snow with only occa-sional breakthrough. To climb back ontocrust, reduce engine speed and shift intolow range to achieve a very low trackspeed for forward movement withoutslippage.5 Check air filter pats frequently and cleanpats of snow. When air filter baskets areremoved, inspect air separators for clog-ging. If clogged, notify unit maintenancepersonnel.ICE1 Select a higher gear range which willmove vehicle steadily without imposingundue strain on engine.2 Drive slowly and cautiously to avoidskidding. If vehicle skids, slow downengine and proceed with caution. Do notspin tracks.3 Avoid grades and sharp turns, ifpossible.SAND1 The main objective when driving in sandis to avoid spinning tracks.2 Drive slowly and use a gear high enoughto move vehicle steadily without impos-ing undue strain on engine.3 Avoid sharp and pivot turns to preventbuildup of debris in track that wouldcause track to be thrown.FORDINGDo not ford water that exceeds42 inches (106.7 cm) in depth.Check for soft mud or sandybottoms.The M578 recovery vehicle is designed tocross a body of water only up to 42 inches(106.7 cm) deep.2 - 1 13
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