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5.4
Prewash and adjustment of the upper packing.
[Ref. figure 2 page 17 and figure 3 page 18]
1.
Make sure the pump has been properly installed; (see point 4.3)
2.
Immerse the suction hose (A), in the cleaning liquid (clean solvent or water according to the
purchased model).
3.
Place the ball valve (E) in the proper position.
4. Open the recirculation valve (C).
5. Loosen the upper packing adjusting cup (D).
6.
Open gradually the air pressure regulator (G) up to the minimum pressure required for the
straight and alternate movement of the pump. (about 0.5 bar).
7. Adjust the upper packing by tightening gradually the thinner cup (D) until stopping the cleaning
liquid outflow and the pump movement.
NOTE: The failure to observe this point as well as an improper initial adjustment of the packing
might reduce its duration.
8. Once the packing has been adjusted, increase the air supply pressure (up to about 2 bar) and
let the cleaning liquid flow in the recirculation pipe for a few minutes.
9.
Close the recirculation valve (C) clean the paint pipe and the gun by keeping its trigger pulled.
10. Once you are sure the cleaning has been properly carried out, lift the suction hose from the ves-
sel containing the cleaning liquid and let the residual liquid flow out of the gun first, and then
from the recirculation pipe.
WARNING:
THE PUMP MUST BE CLEANED BEFORE USING IT FOR THE FIRST TIME, IF IT IS NOT USED FOR A
LONG TIME AND AFTER ANY COLOUR CHANGE.
Содержание MSU-113 N
Страница 38: ...38 Plunger pump set type PP7131N...