090140 REV5 2021/12/15 877.582.3569 10
shaft (2) into the shaft end pocket on the body (1). Pay attention to the orientation of the
valve assembly.
7. Rotate the handle (10) to fully closed position. Install the shaft cotter pin (3) onto the shaft (2).
8. Check the API rack coupler with an API adapter to make sure all components are
assembled properly.
REPLACE SEALS:
Warning: Carefully remove and install parts without damaging any sealing surfaces when
replacing seals. Even the smallest scratches on the O-Ring groove or other sealing surface will
cause leakage.
REPLACE SHAFT SEALS IN STUFFING BOX
Note: While the API rack coupler is off the rack, shaft seals (7.2, 7.3, 7.4, 7.5 and 28) can be
replaced using the method described here.
1. Follow Step 1 to 4 from “REPLACE VALVE ASSEMBLY AND PARTS”.
2. To remove bearing assembly (7), unscrew the lock nuts (22) and remove the shoulder screw
(21) from the handle (10) and shoulder screw (27) from the sleeve lock (26). Remove the
handle (10) from the shaft (2) followed by the sleeve lock (26), locking plate (9), dust O-ring
(28), the bearing assembly (7) and bearing washer (8).
3. Remove the O-rings (7.2, 7.3) and the u-seals (7.4, 7.5, optional) from the bearing assembly
and make sure not to damage the bearing (7.1) or scratch sealing surfaces.
•If the bearing (7.1) is good, thoroughly clean the bearing (7.1) to remove any debris, oil
and grease. Lubricate NEW O-Rings (7.2 for inside groove and 7.3 for outside groove)
and install into the grooves. If u-seals (7.4, 7.5) are ordered, lubricate NEW u-seals (7.4
for inside groove and 7.5 for outside groove) and install into the grooves. Handle the u-
seals (7.4, 7.5) carefully and make sure not to damage.
•If the bearing (7.1) is already damaged or has scratches on the sealing surfaces, replace
the bearing assembly with a NEW bearing assembly, which includes the bearing (7.1),
the inside O-Ring (7.2), the outside O-Ring (7.3), the inside u-seal (7.4, optional) and the
outside u-seal (7.5, optional).
4. Install bearing washer (8) into the shaft (2) followed by the bearing assembly (7) and dust O-
ring (28) make sure it is greased, locking plate (9), sleeve lock (26) and then the handle
(10). Align the sleeve lock (26) and handle (10) to the shaft (2) holes and insert the shoulder
screws (21 & 27) then tighten the lock nuts (22).
5. Push the end of the shaft to the body through the inside shaft washer (29), drive link (5.6)
and spacer (11). At this instance the bearing assembly is also getting in to the stuffing box of
the body. Push the shaft assemble shaft (2) end to the shaft pocket on the body (1). Pay
attention to the orientation of the valve assembly.
6. Rotate the handle (10) to fully closed position. Install the shaft cotter pin (3) onto the shaft (2).
7. Check the API rack coupler with an API adapter to make sure all components are
assembled properly.
REPLACE THE SEALS ON THE NOSE PIECE
Note: Nose piece seals, including O-Ring (6.2), nose piece dust ring (6.4) and optional u-seal (6.5),
can only be replaced when the API rack coupler is off the rack.
1. Follow Step 1 to 4 from “REPLACE VALVE ASSEMBLY AND PARTS”.
2. Remove the nose piece assembly, which includes the nose piece (6.1), nose seal (6.3), O-
Ring (6.2), nose piece dust ring (6.4), u-seal (6.5, optional). Remove and clean the
compression springs (23).
