WORK INSTRUCTION
Work Instruction No.
WI_AB_CXXXXXXXXX
9
Step 16 (For 3 Phase motor Only)
Installing the Locking Screw and Washer
Skip this step if the motor is single phase!!!
Place the screw listed on the work order BOM into the motor shaft.
-Left Hand screws will be rotated counter clockwise to tighten (Nidec Motors)
-Right Handed screws will be tightened clockwise to tighten
Rotate the screw by hand until it stops at the impeller hub. Tighten the screw to
approximately 8 ft-lbs.
The lock washer should not move or wiggle. Test that the washer is tight by trying to
wiggle it with your hand. If the washer moves, the motor shaft is not tapped far enough
and the pump needs to be disassembled (or a shorter locking screw may be used if in
the field).
Step 17
Install the Drain Plug into the Case
Using the 1/4” square socket by 3/8” Square socket for drain plug, tighten the drain
plug assembly into the case. Once the air ratchet stops, turn the drain plug another 60
degrees by hand to ensure it is sealed.
The drain plug should still have a minimum of 1 thread showing. If there is not 1 thread
showing, the port threads are too deep and the case may leak from these threads.
A new case is required. See QA for instructions.
(In the field, more Teflon tape or plumbers tape may be added to the drain plug.)
Step 18
Installing the Suction O-Ring
Place the suction o-ring into the groove of the suction nozzle.
The o-ring should float in the groove and should not be pinched or rolled.
