Packings - WAGNER ProSpray 3.39 Operating Manual

15. Clean all the parts with the corresponding cleaning agent.
Check outlet valve housing (9), outlet valve seat (15),
outlet valve ball (13) and upper ball guide (12) for wear
and replace parts if necessary. If the worn outlet valve
seat (15) is unused on one side, install it the other way
around.
16. Carry out installation in the reverse order.
17. If you plan to replace the fluid section packings, move
on to section 11.3. If not, reassemble fluid section in the
reverse order of how it was disassembled.
11
12
13
14
15
9
11.3

Packings

1. Remove inlet valve housing in accordance with the steps
in Chapter 11.2, Page 36.
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. Place the fluid section cylinder upright in a vise by
clamping on the wrench flats (Fig. 16, Item 1).
Do not over-tighten the vise. Damage to the
cylinder may occur.
6. Turn the upper housing (2) counterclockwise to loosen it
from the cylinder (3).
7. Slowly pull down the upper housing (2) just far enough to
expose the extension slider (4) and the connecting pin (5)
that connects the piston rod (6) to the extension slider (4).
8. Push the connecting pin out of the extension slider and
piston rod and remove the piston rod and upper housing.
9. Place the upper housing upright in a vise by clamping on
the wrench flats (7).
Do not over-tighten the vise. Damage to the
upper housing may occur.
10. Using a wrench, remove the upper seal retainer (Fig. 16,
Item 8).
11. Slide the piston rod (6) out through the bottom of the
upper housing (2).
12. Inspect the piston rod (6) for wear and replace if
necessary.
ProSpray 3.39
GB
13. Remove the upper support ring (9) and upper packing
14. Remove the adapter (11) and lower packing assembly
10
15. Clean the upper housing (2) and cylinder (3-5). Inspect
16. Place the upper housing upright (2) in a vise by clamping
17. Locate the new upper and lower packings and remove the
i
37
assembly (10) from the top of the upper housing (2).
(12) from the bottom of the upper housing.
Be careful not to scratch, score, or otherwise
damage the upper housing during removal of the
packings.
8
9
10
7
2
12
11
6
the upper housing and cylinder for damage and replace if
necessary.
on the wrench flats (7).
pre-form tools. Save the upper packing pre-form tool for
use as the piston insertion tool later in this procedure.
Do not remove the pre-form tools from the upper
and lower packings until immediately before they
are installed into the upper housing.
Repairs at the unit
14
13
1
3
4
5