4.3. Adjustment of Governor 4.3.1. Adjustment of No Load Max. Engine Speed Set the engine speed at the no load max. speed. Pull the regulator lever and adjust the max. speed limit bolt to obtain the specified injection amount. Fasten the nut after completing the adjustment. 4.3.2. Adjustment of Fuel Limit Bolt ① The MP2 pump has the lift adjustment FO limiter as a standard equipment. Screw in the lift adjustment screw fully, then return the screw by 0.5 turns and fasten the screw with the lock nut.
(In the specifications where no torque control spring is used, keep the lift adjustment screw completely free.) ② Set the pump speed at the rated speed and move the regulator lever until it contacts the maximum speed limit bolt. ③ Check that the amount being injected exceeds the rated injection 4.3.3. Adjustment of Torque-Rise Point amount, screw in the fuel limit bolt and adjust the injection amount. The Torque-Rise adjustment comprises the FO limiter (torque spring) and the torque control spring. ① Set the pump speed at the Torque-Rise speed and leave the regulator lever at the position in 2 above. ② When both of the FO limiter and torque control spring are used: !
Screw in the torque control assembly, adjust to obtain the specified injection amount and fasten the lock nut. Adjustable lift torque spring ③ Specifications of Only the FO Limiter ! Screw in lift limit bolt of the FO limiter, adjust to obtain the specified injection amount and fasten the lock nut. 46