. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES Bucket operation (c) DUMP (d) CURL 3 - 43 Righ t work equipme nt control lever (4) is u sed t o o perate t he boom and bucke Boo m operation (a) R AISE (b) L OWE N (Neutral) : The bo om a nd b ucket are h eld in positio n and do not move. REM The engin speed auto-deceleration m echanism. W hen t he travel lever and work equipment control levers ar e at the neutral position , even if the fuel contro l dial abov e midran ge speed, th e engine s peed wil l go down to a midrange speed. If one of these levers is operated, e engine spee d will rise to the spee d set by the fuel contr ol dial.
If all the control l evers are at the neutr al position, t hen after approx . 4 seconds, the engine s peed goes dow n to e deceleration spee d (approx. 1425 rpm) ontrol lever