ProSpray 24
g
Repairs at the unit
10. Unscrew outlet valve housing (Fig. 16, Item 7) from
the piston (8) with adjusting wrench.
11. Remove the upper ball guide (10), outlet valve ball
(11), and outlet valve seat (12).
12. Clean all the parts with the corresponding cleaning
agent. Check outlet valve housing (7), outlet valve
seat (12), outlet valve ball (11) and upper ball guide
(10) for wear and replace parts if necessary. If the
worn outlet valve seat (12) is unused on one side, in-
stall it the other way round.
13. Carry out installation in the reverse order. Lubricate
O-ring (Fig. 15, Item 6) with machine grease and en-
sure proper seating in the inlet valve housing (Fig. 15,
Item 1).
10
11
12
8
7
11.3 Packings
1. Remove inlet valve housing in accordance with the
steps in Chapter 11.2, Page 41.
2. It is not necessary to remove the outlet valve.
3. Slide the retaining ring (10) up on the connecting rod
(5) to expose the connecting pin (11).
4. Push the connecting pin (11) forward through the
connecting rod (5) and piston (3). The connecting
pin will fall into a recessed area of the gear unit hous-
ing where it can be retrieved.
5. Unscrew both cylinder head screws (Fig. 17, Item 1)
from the pump manifold (2) with a 3/8 inch hexagon
socket head wrench.
6. Pull the pump manifold (2) down off of the gear unit
housing.
7. Push piston (3) downward out of the pump manifold
(2).
8. Unscrew retainer nut (6) from the pump manifold (2)
and remove piston guide (7).
9. Remove upper packing (8) and lower packing (9)
from the pump manifold (2).
5
10
6
7
8
1
2
9
3
11
