Echo MS-53BPE manual Pressure Chamber Housing Gasket and Felt Washer

Felt

Washer Gasket

Figure 6

Pump

Locking

Ring

Felt

Washer

Pressure Chamber Housing Gasket and Felt Washer

Slide both the gasket and felt washer off the pressure chamber body (Figure 6). Replace felt washer frst taking care not to fold over washer as it is worked up the pump chamber and into the pump locking ring (fgure 7). The felt washer is pre-lubricated to provide lubrication between the pressure chamber housing and pressure chamber housing gasket. Insure the felt washer is free of contamination before installing. Replace gasket into the pump opening in the tank insuring the fanged end is up (if this is assembled backwards leakage will occur) (Figure 8). Insure that the sides of the gasket are inside the tank pump opening and the fange is sitting level on the tank pump opening seal surface area.

5)Replace pump assembly into tank and into the piston cylinder which is mount- ed on the bottom of the tank. Be careful not to damage the plunger seal as it seats into the piston cylinder. It is recommended that you view through the tank fll opening while performing this to achieve better alignment. If necessary you can also reach in and use your hand to guide the plunger seal into the piston cylinder.

Figure 7

Pressure Chamber Housing Gasket

Figure 8

6)Position the pump outlet (hose connection) in the desired position. Tighten the pump retaining ring onto the tank.

7)Reach into tank fll opening and attach agitator to pressure chamber body.

8)Connect linkage arm to the top of the pump assembly (see section covering

Installing The Pump Handle).

PUMP DISASSEMBLY AND REBUILD

Agitator

Bar

1) Insure the tank and pressure chamber contents are emptied and pressure has been released in the pressure chamber. To release pressure in the pressure chamber activate shut-off valve and release all pressure.

Figure 1

Boot

Retainer

Nut

Ball

Figure 2

Pressure

Chamber

Pump

Locking

Ring

2)Reach into tank fll opening and remove agitator bar from pressure chamber body (Figure 1).

3)Disconnect linkage arm from the top of the pump assembly (see section covering Installing The Pump Handle). (Figure2).

4)Loosen pump locking ring and remove entire pump assembly from

tank ( Figure 3).

Figure 3

8E