WAGNER ProSpray 30 Operating Manual page 16

6. Swivel the unit 90° to the rear in order to work more
easily on the material feed pump.
7. Loosen and unscrew inlet valve housing (2) from the
lower housing (3) with light blows from a hammer or
unscrew with an adjusting wrench.
8. Remove bearing ring (4), O-ring (5), O-ring (6), inlet
valve seat (7), inlet valve ball (8) and upper ball guide
(9).
9. Clean all the parts with the corresponding cleaning
agent.
Check the inlet valve housing (2), inlet valve seat (7)
and inlet valve ball (8) for wear and replace the parts
if necessary. If the worn inlet valve seat (7) is unused
on one side, install it the other way around.
10. Carry out installation in the reverse order.
Lubricate O-ring (5) with machine grease and ensure
proper seating in the inlet valve housing (2).
11. Unscrew lower housing (Fig. 15, Item 10) with adjust-
ing wrench while holding the upper housing (11) se-
curely with a second adjusting wrench.
12. Remove bearing ring (13) and O-ring (12).
13. Screw out outlet valve housing (14) from the piston
(15) with 3/8 inch hexagon socket head wrench.
14. Remove the upper seal (16), upper ball guide (17),
outlet valve ball (18), washer (19) and outlet valve
seating (20).
15. 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, in-
stall it the other way around.
16. Carry out installation in the reverse order.
Lubricate O-ring (12) with machine grease and en-
sure proper seating in the lower housing (10).
11
16
17
18
19
20
14
12
13
10
ProSpray 30 • 34
g
11.3 Packings
1. Remove inlet valve housing and lower housing as
2. It is not necessary to remove the outlet valve.
3. Push up retaining ring (Fig. 16, Item 1) with screw-
4. Remove connection pin (2) from the gear unit hous-
5. Loosen lock nut (5) counterclockwise with light blows
6. Unscrew upper housing (6) counterclockwise from
7. Clamp upper housing (6) at the wrench surfaces ver-
8. Screw out threaded joint (7).
9. Push piston (4) downward out of the upper housing
10. Remove upper packing (8) and lower packing (9)
15
described in Chapter 11.2, Page 38.
driver. Remove connection pin (2) with a diameter of
6 mm from the connecting rod (3) and piston (4).
ing.
from a hammer.
the gear unit housing.
tically in a vice.
Do not tighten vice excessively to
prevent crushing.
Attention
(6). Check piston for wear and replace if necessary.
from the upper housing (6).
Do not damage inside of upper
housing.
Attention
Repairs at the unit