If the amplifier fails, only the force from the driver’s foot is transmitted to the pistons of the master cylinder through pusher 33 (see Fig. 1), control valve, buffer 20 and rod 7
Maintenance of the fuel filter-sump
Periodically drain the dirt and water through the drain hole (Fig. 1)
Remove and disassemble the pressure regulator in the following order:
Disconnect the lines leading to the regulator.