Wagner SprayTech 558022 Paint Sprayer User Manual


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ProSpray 3.25 17
GB
Repairs at the unit
11. Unscrewoutletvalvehousing(Fig.14,Item8)fromthepiston
(9) with adjusting wrench.
12. Remove the upper ball cage (11), crush washer (10), outlet
valve ball (12), and outlet valve seat (13).
13. Clean all the parts with the corresponding cleaning agent.
Check outlet valve housing (8), outlet valve seat (13), outlet
valve ball (12), crush washer (10), and upper ball cage (11) for
wear and replace parts if necessary. If the worn outlet valve
seat (13) is unused on one side, install it the other way round.
14. Carry out installation in the reverse order. Lubricate O-ring
(Fig. 13, Item 6) with machine grease and ensure proper
seating in the inlet valve housing (Fig. 13, Item 1).
11
10
12
13
9
8
11.3 Packings
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. Unscrewbothcylinderheadscrews(Fig.15,Item1)from
the pump manifold (2) with a 3/8 inch hexagon socket head
wrench.
4. Slide the pump manifold (2) and piston (3) forward until the
piston is out of the T-slot (9) on the slider assembly (4).
5. Push piston (3) downward out of the pump manifold (2).
6. Unscrewretainernut(5)fromthepumpmanifold(2)and
remove piston guide (6).
7. Remove upper packing (7) and lower packing (8) from the
pump manifold (2).
4
5
6
7
2
8
1
3
9
8. Clean pump manifold (2).
9. Lubricate upper packing (7) and lower packing (8) with
machine grease.
10. Insert upper packing (Fig. 16) with O-ring (1) and protruding
lip (2) downward.
1
2
11. Insert lower packing (Fig. 17) with the beveled edge (1) facing
upward.
1
12. Insert piston guide (Fig. 15, Item 6) into the retainer nut (5).
Screw retainer nut (5) into the pump manifold (2) and tighten
by hand.
13. Push installation tool (included with the replacement
packings) for the piston (3) from above onto the piston.
14. Lubricate installation tool and piston (3) with machine grease.
15. Guide piston (3) through the lower packings (8) into the pump
manifold(2)frombelow.Usingarubbermallet,lightlytapthe
piston (3) from below until it can be seen above the pump
manifold.
16. Remove installation tool from piston (3).
17. Carefully tighten retainer nut (5) with adjusting wrench
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