. OPERATION DETAILED CONTROLS AND GAUGES 3 - 11 Hydraulic Oil Temperature Monitor Monitor ( 2) warns operat or that the hydraulic oil temperature has risen If monitor stop the monitor ( lights u engine a 2) chang p 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 below no rmal le monitor li ghts up stop he en gine immediately, che lubrication eve engine oi