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12. With the motor assembly still on the board, gently lift the diaphragm up
on each end and insert one stainless washer (Item 6) in each motor adapter
hole.
13. Insert the two 10-22 X 2” motor adapter screws (Item 4) into the motor
adapter holes. Rotate the motor adapter slowly until screws "drop" into
place. Tighten the screws while alternating between the two, to 50 inch
lbs. of torque.
14. Lay the discharge head (Item 24) top side down on a flat surface and
install the suction screen (Item 23) with the welded seam placed between
the two cable guard screw holes.
15. Install the check valve seal (Item 22) and check, valve (Item 21) into the
discharge head. Make sure the check valve assembly is flush with the
discharge head. Turn the discharge head over and insert the four washers
(Item 6) and the 10-32 X 1 1/2" stainless screws (Items 25) into the 4
countersunk holes.
16. Install the relief valves (Items 20) into the two springs (Items 19) until
seated. With the motor and motor adapter still on the assembly board,
insert the two relief valve spring assemblies (Items 19 & 20) over the
small studs on the diaphragm with the relief valves pointing up.
17. With the motor assembly still held in a vertical position, install the
discharge head on the motor adapter while carefully guiding the relief
valves into the holes in the check valve assembly. Make sure the relief
valve springs stay on the small studs and the relief valve is seated in
the check valve assembly.
18. While holding the discharge 'head in position tighten the four screws a
little at a time, jumping to opposite sides, to 45 inch lbs. of torque.
19. Install pumps on flow and amp test fixture and run for 20 minutes and then
check the flow and motor current to see if they are within specifications.
(If test fixture is available.)
20. Set the pump with the discharge end facing down an a flat table.
21. Install the three o-rings (Item 9) onto the motor adapter and lightly
lubricate with a non-outgasing food grade grease. (Swepco #115 or
petroleum jelly)
22. Lightly grease the inside of both ends of the stainless housing about one
inch deep and slip it over the pump assembly, with the longer inside bore
down, until it rests on the O-rings. With a small block of wood or other
soft flat object push the housing down over the O-rings until it touches
the brass lip on the motor adapter.
23. Screw a 10-12 X 3" stud into one of the coupling nuts (Item 10) on the
back side of the motor. This is used as a guide when installing the end
cap assembly.
24. Install the O-rings on the end cap assembly (Item 8) and lightly grease
the O-rings.
