Wagner SprayTech 558017 User Manual

ProSpray 3.34 

17

 

Repairs at the unit

 14.  Unscrew lower housing (Fig. 13, Item 10) with adjusting

wrench while holding the upper housing (11) securely with 

a second adjusting wrench.

  15.  Remove bearing ring (13) and O-ring (12).

  16.  Screw out outlet valve housing (14) from the piston (15) 

with 3/8 inch hexagon socket head wrench.

  17.  Remove the upper seal (16), upper ball guide (17), outlet 

valve ball (18), washer (19) and outlet valve seating (20).

  18.  Clean all the parts with the corresponding cleaning agent. 

Check outlet valve housing (14), outlet valve seat (20), 

outlet valve ball (18) and upper ball guide (17) for wear 

and replace parts if necessary. If the worn outlet valve 

seat (20) is unused on one side, install it the other way 

around.

  19.  Carry out installation in the reverse order.

 

  Lubricate O-ring (12) with machine grease and ensure 

proper seating in the lower housing (10).

  1.  Remove inlet valve housing in accordance with the steps 

in Chapter 11.2, Page 16.

  2.  It is not necessary to remove the outlet valve.

  3.  Pull the lever on the underside of the sprayer toward the 

front of the sprayer. This will un-clamp the entire fluid

section.  

 4.  Slide the fluid section forward to remove it from the gear

housing.

 5.  Unscrew upper housing (6) counterclockwise from the

gear unit housing.

  6.  Clamp upper housing (6) at the wrench surfaces vertically 

in a vice.

  7.  Screw out threaded joint (7).

  8.  Push piston (4) downward out of the upper housing (6). 

Check piston for wear and replace if necessary.

  9.  Remove upper packing (8) and lower packing (9) from the 

upper housing (6).

  10.  Remove the transportation devices from the upper and 

lower packings.  (The transportation device from the upper 

packing is required for installation of the piston.)

  11.  Lubricate upper packing (8) and lower packing (9) with 

machine grease.