40
ProSpray 27 • 31
g
Repairs at the unit
5
7
10
8
6
9
11
4
3
2
1
11.3 Packings
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 spiral 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 hou-
sing.
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 ver-
tically in a vice.
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.
10. Remove upper packing (8) and lower packing (9)
from the upper housing (6).
11. Remove the transportation devices from the upper
and lower packings.
The transportation device from the upper packing is re-
quired for installation of the piston.
12. Lubricate upper packing (8) and lower packing (9)
with machine grease.
Attention
Do not tighten vice excessively to
prevent crushing.
Attention
Do not damage inside of upper
housing.
