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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 adjusting
wrench while holding the upper housing (11) securely 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, install it the other way around.
16. Carry out installation in the reverse order.
Lubricate O-ring (12) with machine grease and ensure
proper seating in the lower housing (10).
11
16
17
18
19
20
14
12
13
10
ProSpray 30 • 34
GB
11.3 Packings
10. Remove upper packing (8) and lower packing (9) from the
15
1. Remove inlet valve housing and lower housing as
described in Chapter 11.2, Page 38.
2. It is not necessary to remove the outlet valve.
3. Push up retaining ring (Fig. 16, Item 1) with screwdriver.
Remove connection pin (2) with a diameter of 6 mm from
the connecting rod (3) and piston (4).
4. Remove connection pin (2) from the gear unit housing.
5. Loosen lock nut (5) counterclockwise with light blows from
a hammer.
6. Unscrew upper housing (6) counterclockwise from the gear
unit housing.
7. Clamp upper housing (6) at the wrench surfaces vertically
in a vice.
Do not tighten vice excessively to prevent
crushing.
Attention
8. Screw out threaded joint (7).
9. Push piston (4) downward out of the upper housing (6).
Check piston for wear and replace if necessary.
upper housing (6).
Do not damage inside of upper housing.
Attention
Repairs at the unit
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