Cartridge Valve And O-Ring Replacement; Figure 31: Diaphragm Replacement (Full In) - LMI Excel XR Series Installation & Operation Manual

9. Remove the adapter disk and check condition of the shaft seal. Replace
shaft seal if necessary.
10. Replace the adapter disk so that the drain hole of the disk is oriented
downward, and the mounting holes line up with the mounting holes of the
pump.
N ot e:Be careful not to scratch the Fluorofilm
11. Screw on the new diaphragm clockwise until turned all the way in.
12. Press Right
31).
13. Remount the pump head using the screws and washers.
14. Tighten in a crisscross pattern.
15. Torque screws to 25 inch-pounds.
After one week of operation, recheck the screws and tighten if necessary.

Figure 31: Diaphragm Replacement (Full In)

5.3 Cartridge Valve and O-ring Replacement

A L W A YS wear pr ot ec t i ve c l ot hi ng, fac e shi el d , safet y gl asses and gl oves when
wor ki ng on or per for m i ng any m ai nt enanc e or r epl ac em enton you r pu m p.S ee
S D S i nfor m at i on fr om sol u t i on su ppl i erforad d i t i onalpr ec au t i ons.
Refer to the LMI Metering Pump Price List for the proper Spare Parts Kit number or
contact your local LMI stocking distributor. Spare Part Replacement Kits include specific
instructions for valve replacement. Please follow the instructions included with the
replacement kit.
1. Carefully depressurize and disconnect the discharge line (see section 5.1
Depressurizing the Discharge Line).
2. Place the foot valve or suction tube into a container of water or other
neutralizing solution.
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face of the new diaphragm.
to fully retract the diaphragm to the full in position (Figure
32
MAINTENANCE