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PS 3.34
12. Insert upper packing (Fig. 15) with O-ring (1) and
protruding lip (2) downward into the upper housing (6).
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2
13. Place intermediate ring (Fig. 14, Item 10) on the upper
packing (8).
14. Screw threaded joint (Fig. 14, Item 7) into the upper
housing (6) and tighten to 34 – 41 Nm.
15. Insert lower packing (Fig. 16) in such a way that the side
with the smaller distance between the O-ring (1) and the
protruding lip (2) faces upward.
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1
16. Move the lower packing to the end position using the
installation tool.
17. Push installation tool (included in scope of delivery of the
upper packing as a transportation device) for the piston
(Fig. 14, Item 4) onto the piston from above.
18. Lubricate installation tool and piston (4) with machine
grease.
19. Push piston (4) through the lower and upper packings until
the upper end of the piston protrudes from the threaded
joint (7).
20. Remove installation tool from piston (4).
21. Replace the upper housing (6) back into the fluid section
clamp on the gear housing. Make sure to slide the top of
the piston rod (4) into the T-slot (2) on the slider assembly
(3).
22. Push the lever on the underside of the unit toward the rear
of the sprayer to lock the fluid section back into place.
23. Insert guide ring (11) into the lower housing (Fig. 13, Item
10) and screw lower housing into upper housing and
tighten.
24. Screw on and tighten connection hose.
25. Screw in inlet valve housing (Fig. 12, item 2), see Chapter
11.2, Item 13.
26. Screw on and tighten suction tube.
27. Fasten return hose with clamp at suction tube.
28. Install front cover.
repairs at the unit
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