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TO REPLACE THE HIGH PRESSURE SEAL:
1. Unscrew the Inlet Nut (SC125 002-AMMT) and remove the Port Plug Assembly (FT 026).
2. Remove the old Seat (SC168 011-C) and H.P. Seal (SC168 012-O).
3. Apply grease to and install new H.P. Seal into the shaft with the O-Ring groove end going
in first. Do not press all the way into the shaft bore.
4. Install new Seat (SC168 011-C) with the chamfered face toward Inlet Nut. Press in just far
enough so that the seat is captured in the shaft bore.
5. Fill the body with viscous fluid to 1/4" above the top of the upper bearing.
6. Hold the Inlet nut at an angle with the Port Plug hole facing up. Thread Body onto Inlet Nut
and tighten to 50 ft-lb.
7. Install Port Plug with O-Ring.
HIGH PRESSURE SEAL REPLACEMENT
SC125 002-AMMT
Inlet Nut
DETAIL VIEW OF H.P. SEAL & SEAT
CHAMFERED
FACE UP
CHAMFERED
FACE
FLAT FACE
O-RING
GROOVE END
SC168 011- C
Seat, Carbide
SC168 011- C
Seat, Carbide
SC168 012-O
H.P. Seal
SC168 012
H.P. Seal
Assembly
