Category Archives: FUSO 4M4

FUSO 4M4 – COOLING – STRUCTURE AND OPERATION – Thermostat

• The thermostat is a bottom bypass type that uses a wax-filled pellet as its flow-regulating element. When the wax is heated, it melts from solid to liquid, changing its total volume. This allows the valve to open or close in accordance with the coolant temperature, regulating and adjusting the flow of coolant to the… Read More »

FUSO 4M4 – FUEL AND ENGINE CONTROL – ACCELERATOR PEDAL

Removal sequence 1 Accelerator pedal (See later sections.) 2 Accelerator link (See later sections.) Installation sequence Follow the removal sequence in reverse. Removal procedure Removal: Accelerator pedal • Using pliers, pinch the hook of the stopper on the accelerator pedal. Separate the stopper from the pedal while turning the hook by about 15 degrees. Installation… Read More »

FUSO 4M4 – FUEL AND ENGINE CONTROL – FUEL FILTER

Removal procedure •Removal: Case – Loosen the water separator sensor and drain fuel from the case. – Remove the case using Installation procedure •Installation: Case Clean the O-ring mounting surface of the fuel filter head and the O-ring groove of the case. • Replace the filter element and O-ring with new one. • Apply a… Read More »