ProSpray 26
39
GB
Repairs at the unit
10. Unscrew the outlet valve housing (Fig. 14, Item 7) from the
piston (8) with 3/8 inch hexagon socket head wrench.
11. Remove the upper seal (9), upper ball guide (10), washer
(11), outlet valve ball (12), and outlet valve seating (13).
12. Clean all the parts with the corresponding cleaning agent.
Check outlet valve housing (7), outlet valve seat (13),
outlet valve ball (12) and upper ball guide (10) 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.
13. Carry out installation in the reverse order. Lubricate O-ring
(Fig. 13, Item 5) with machine grease and ensure proper
seating in the inlet valve housing (Fig. 13, Item 1).
8
9
10
12
13
7
11
11.3 Packings
1. Remove inlet valve housing in accordance with the steps
in Chapter 11.2, Page 38.
2. It is not necessary to remove the outlet valve.
3. Slide the retaining ring (11) up on the connecting rod (5) to
expose the connecting pin (12).
4. Push the connecting pin (12) forward through the
connecting rod (5) and piston (3). The connecting pin will
fall into a recessed area of the gear unit housing where it
can be retrieved.
5. Unscrew both cylinder head screws (Fig. 15, 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).
6
7
8
2
1
9
3
11
5
12
10
