Wagner SprayTech 558021 User Manual

 18 

ProSpray 3.25

Repairs at the unit 

  18.  Slide the top of the piston (3) into the T-slot (9) on the slider 

assembly (4).

  19.  Position the pump manifold (2) underneath the gear unit 

housing and push up until it rests against the gear unit 

housing. 

  20.  Attach pump manifold (2) to the gear unit housing.
  21.  Screw pump manifold (2) tightly to gear unit housing.
  22.  Lubricate O-ring (Fig. 13, Item 6) between pump manifold (2) 

and inlet valve housing with machine grease. Screw inlet valve 

housing to the pump manifold.

 23.   

 

  Thread the siphon tube into the inlet valve and tighten 

securely.  Make sure to wrap the threads on the down tube 

with PTFE tape before assembly.  Replace the return hose into 

the hose clip on the siphon tube.

  

 

  Insert the elbow on the siphon assembly into the bottom of 

the pusher stem housing.  Push the retaining clip up into the 

groove inside the foot valve housing to secure the siphon 

assembly in position.  Place the return tube over the return 

tube fitting and secure with the clip.

  24.  Install front cover.

LOAD

LINE

EMI Filter

P/N 0522054

Ground

Switch

White or Blue

Black or Brow

n

Black

Black

White

White

White

Red

Black

Black

Red

Red (+)

Black (-)

Black

Power Cord

Ground

Capacitor

Surge suppressor

P/N 0551972

Motor controller

Pressure sensor

L.E.D.

Hall sensor

Fuse block

Fuse

Potentiometer

Motor

Display wire assembly

(P/N 0522022)