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6.
Is the stroke preferably set to 60 mm when priming?
7.
Do the pressure surges of the pump adversely affect the installa‐
tion? Install a pulsation damper if you need to.
6.3 0.5 h ... 1 h after commissioning
1.
Is oil leaking somewhere?
2.
Has the oil level dropped?
3.
Does the liquid end become dangerously hot in high ambient tem‐
peratures, with hot feed chemicals, or at a high dosing rate?
6.4 Bleeding the hydraulics
1.
Loosen the locking nut (A) on the vent valve and turn the vent screw
(B) clockwise to its lower stop, approximately 4.5 turns.
2.
Allow the pump to run, preferably with a long stroke length, for
approx. 2 minutes.
ð
A little oil and air escape.
3.
Stop the pump when no more oil and air escape.
4.
Turn the vent screw (B) back to the upper stop and secure it with
the locking nut (A).
B1288
Fig. 20: Bleed valve
Commissioning and operation
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Содержание EMFa
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