. OPERATION DETAILED CONTROLS AND GAUGES 3 - 10 Hydraulic Oil Temperature Monitor Monitor ( 2) warns operat or that the hydraulic oil temperature has risen If monitor stop the monitor ( lights up engine a 2) chang red d nd wai es to g uring t until reen. Engine Oil Pressure Mon Monitor ( 3) lights up red if the engine lubrication oil pressure goes belo w no rmal lev monitor li ghts up stop he en gine immediately, chec lubrication eve engine oi