TM5-3810-305-10 When attaching hook block to hook block tieback, take up cable slowly while lowering boom to prevent damage to windshield. If disconnect system malfunc- tions and hook block is drawn into the boom point, vehicle may be  damaged.  Care  should  be taken when performing discon- nect test. Do not make directional changes CAUTION between forward and reverse while vehicle is in motion. If any gauge fails to operate, shut Failure to follow this procedure engine off and notify mainte- could cause damage to equip- nance.  Failure  to  follow  this ment. procedure could cause damage to equipment. Do not attempt to move the vehicle with the parking brake engaged.  Failure  to  follow  this procedure could cause damage to equipment. I CAUTION I Never operate engine with oil level below the ADD 1 QT mark or  above  the  FULL  mark.  Fail- ure to follow this procedure could cause damage to equip- ment. I CAUTION I CAUTION Release starter button as soon as the engine starts. If engine stalls during start-up procedure, allow engine to stop revolving before re-engaging  starter.  Failure  to follow this procedure could cause damage to equipment. C A U T I O N  When operating on hard surfaces, use  two-wheel  drive  only.  Fail- ure to do so may result in severe drive line “wind-up” and compo- nent failure. Keep tension on cable to prevent damage from slack. 1-37 CAUTION CAUTIO N