Echo MS-40BD manual Disassembling and Replacing the Diaphragm Pump

DISASSEMBLING AND REPLACING THE DIAPHRAGM PUMP

1)De-pressurize the cylinder and remove all liquid from both the pressure cylinder and tank.

2)Remove the 2 screws attaching the pivot lever to the pump shaft

(fig. 1)

Figure 1

3)Remove cotter pin from pump shaft and remove washer (fig. 2a). Pull and slide the shaft from opposite side, moving it out of the way of the diaphragm pump assembly (fig. 2b & 2c).

Figure 2a Figure 2b Figure 2c

4)Unscrew diaphragm pump from pressure cylinder base. The use of a strap wrench or other mechanical means may be neccesary (fig. 3).

Figure 3

5)Remove cotter pin from diaphragm pump assembly pivot lever connection. Remove pivot lever and connection hardware from diaphragm pump assembly (Fig. 4a & 4b).

Figure 4a	Pivot Lever	Figure 4b
	Connection

6) Discard Diaphragm Pump Assembly.

7E