Pumps Type Lk, Ln, Lp; Lubricant Oil Change - OBL X9 Series Operating Manual

Operating manual
7.6.2

Pumps type LK, LN, LP

NOTE: BEFORE start to disassembly, make sure there is no pressure or high temperature in the pipeline !
Operate with pump OFF. To verify conditions and/or replace the valves proceed as follows (see figure 13):
release the pump from suction and discharge pipeline, and clean adequately
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remove the valve units one at a time by unscrewing the valve stay bolts (pos.23)
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delicately extract the internal components without damaging them (use a plastic tool)
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carefully observe and check the direction of assembly of each components
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check the cleaning, wear and proper direction of assembly of components
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the ball valve (pos.15) MUST be SMOOTH, and not have dents or corrosion signs
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the valve seat (pos.5) must have smooth bevelled surfaces with no dents or signs of wear
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verify the integrity of the O-rings (sealing components) (pos.7; 8 or 9)
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if necessary, replace the damaged components
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reassemble everything exactly as shown in figures 13
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ATTENTION: The valve (pos.15) MUST sit on valve seat (pos.5) on the OPPOSITE side of large bevelled surface.
Figure 13
7.7

LUBRICANT OIL CHANGE

X9 pumps are always supplied with lubricant oil on the mechanism.
File: UT-4336 – Rev.0
LK, LN, LP PUMPS: PUMPHEAD COMPONENTS
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X9 Series metering pumps
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