Dustcontrol TPR 43 Originalbetriebsanleitung Seite 21

8. Disassemble the vacuum relief valve (D). Clean and
lubricate shaft and bearings. Check the rubber gasket
(E). Change if cracked or harden (Part No. 4710).
Check the function of the hydraulic damper (F).
D
E
Adjusting the vacuum relief valve
Th e valve is pre-adjusted with a negative pressure
(18 kPa). If this is to be adjusted the following procedure
is used:
- Connect a manometer to the suction side and measu-
re with fully closed inlet.
- Shut down the pump and demount the vacuum relief
valve.
- Remove the damper cover (1) and measure distance
A.
- Loosen the locking nut (3) and adjust the spring ten-
sion by turning the spring plate (4). Th e compression
of the spring (2) determines the opening pressure.
Changing the distance A by 1.5 mm will give a cor-
responding change in pressure of 1 kPa.
- Remount the valve after adjustment and test the
pressure.
9. Inspect all cables and connections, repair if necces-
sary.
10. Remount the protective panels, power up the pump
and give it a test run.
2010-08-31
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TPR 43, 18.5 kW - 21
F
Part No 9046