Service And Repair Replacing the UMP
33
Use hand force to push the UMP onto the discharge head. If the UMP does not seat
snug against the discharge head, remove the UMP and correct the problem.
11. Install the four UMP retaining bolts and lock washers. Snug and then torque the bolts using a cross pattern
technique to 7 ft-lbs (11 N•m).
Do not use the bolts to pull the UMP into position. Use the cross pattern to snug and
torque the bolts. Do not over torque the bolts. Not following these instructions may
cause parts to fail.
12. Get the three extractable O-ring seals ( 3.975’’ ID x 0.210’’ wide [upper], 3.850’’ ID x 0.210’’ wide [middle],
and 3.725‘’ x 0.210’’ wide [lower]) from the Hardware/Seal Kit. The three O-rings are very close in size so take
extra care to distinguish each one before replacing them in the extractable. Lubricate each O-ring with
petroleum jelly and then install them in their assigned grooves in the extractable (see Figure 29).
Figure 29. Locating Packer And Manifold O-rings
13. Remove the manifold’s female connector’s O-ring (see Figure 29). Get a 0.862’’ ID x 0.103’’ wide O-ring from
the Hardware/Seal Kit and lubricate it with petroleum jelly. Slide the O-ring over the female connector and
push it down into its groove.
Upper extractable o-ring
(-345 [3.975'' ID x 0.210'' wide])
Middle extractable o-ring
(-344 [3.850'' ID x 0.210'' wide])
Lower extractable o-ring
(-343 [3.725'' ID x 0.210'' wide])
Female connector o-ring
(-118 [0.862'' ID x 0.103'' wide])
Contractors box o-rings
(-928 [2.090'' ID x
0.118'' wide])
Extractable wiring compartment cover
o-ring (-928 [2.090'' ID x 0.118'' wide])
Leak detector port o-ring
(-228 [2.234'' ID x 0.139'' wide])
049-6
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