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PROTEC 2K
OPERATING MANUAL
VERSION 02/2016
ORDER NUMBER DOC2352824
8.2.4
EMPTYING DEVICE
Gas mixtures can explode if there is an incompletely filled pump!
Danger to life from fl ying parts.
Ignition of potentially explosive surrounding atmosphere.
Empty the device slowly and in a controlled manner.
Avoid potentially explosive atmosphere in the surroundings.
WARNING
The emptying process alone, without fl ushing, is described here. If the device is to
be fl ushed and cleaned at the same time, paint change fl ushing must be performed in
accordance with Chapter 7.7.1.
If there is still mixed product in the spray gun hoses, perform intermediate fl ushing in
accordance with Chapter 7.6.
If the pumping product becomes heated, switch off all heaters and let the product cool off .
1. Visual check: personal safety equipment, grounding and all devices ready to use.
Circulation/return hoses secured. Blue handle (3) at bottom. Red handle (12) at top.
Use circulation to empty product tank
2. Remove circulation hoses (6 and 7) from product tanks A and B and route to empty,
separate, and grounded tanks.
3. Close 2K air pressure regulator (1) (0 MPa; 0 bar; 0 psi).
4. Start circulation operating mode: turn blue handle (3) upwards.
5. Slowly open 2K air ball valve (2).
6. Slowly turn air pressure up on the pressure regulator (1) and only until the pump is
running normally (approx. 0.05 MPa; 0.5 bar; 7.25 psi).
7. Be ready for the switch from working material to air. Turn down pressure regulator (1)
far enough that the pump is still running normally (approx. 0–0.05 MPa; 0–0.5 bar;
0–7.25 psi).
8. As soon as working material is no longer fl owing out of the circulation hoses (6 and 7),
close the ball valve (2).
9. End circulation operating mode: Turn blue handle (3) down again.
Empty using ball valves A and B
10. - When system without return hoses at the ball valves A and B (17 and 18):
For A and B, place one empty, grounded collection tank each under the ball
valves A and B (17 and 18).
- When system with return hoses at the ball valves A and B (17 and 18):
Guide the return hoses (43 and 44) into empty, separated and grounded collection
tanks.
11. Open ball valves A and B (17 and 18).
12. Slowly open 2K air ball valve (2). Be ready for the switch from working material to air.
13. As soon as working material is no longer fl owing from the high-pressure fi lters, close
ball valve (2) and ball valves A and B (17 and 18).
Summary of Contents for PROTEC 2K
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