16 | Baker Hughes
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Handwheel Disassembly
A. Remove pivot pins (45) and remove bracket (42).
B. Loosen and remove capscrews (72), spacer (73), stop
(74) and stop collar (75).
Note: If the handwheel will be reassembled to the valve
in the same orientation, note the assembly sequence of
spacers (73) and stop (74) when disassembling , since
they should be reassembled in the same sequence.
C. Remove handwheel subassembly from handwheel
shaft (41).
D. Remove retaining ring (47), then loosen and remove
locknut (71).
E. Remove bearing race (49B) and bearing (49A).
F. Remove handwheel pivot (46), O-ring (50) and thrust
washer (48).
G. Refer to Handwheel Reassembly Section for reassembly.
Body Removal
A. Refer to Actuator Removal Section and complete
Steps A through E.
B. If the unit is equipped with a handwheel, refer to
Handwheel Removal Section and complete Steps A
through D.
C. Loosen indicator arm (9) by loosening clamp screw
(32) and nut (70).
Note: At this time using ink or a small dab of paint, mark
the relative position of one spline on the shaft (4) to the
lever (33).During reassembly these marks will be used
to correctly align lever on shaft.
D. Loosen lever capscrew (34).
E. Remove packing flange nuts (23A).
F. Remove body stud nuts (23) and lockwashers (24).
G. Separate body subassembly (1) from bracket (17).
Note: Two tapered pieces of steel long enough to apply
leverage are placed between the body bonnet flange and
the bracket 180 ° apart and pressure applied evenly to
separate the body from the bracket. In some instances,
the bearing (16) may also come out of the bracket
during this procedure, simply continue separating body
and bracket and remove bearing (16) indicator arm (9),
lever (33) and packing flange (22).
Body Disassembly
A. Remove packing follower (8) then using a packing
hook, remove all packing (7).
B. Using a small grinding wheel,grind off the peened
ends of the shaft pins (21), then drive out the pins.
Note: Since the pins are tapered, they can only be driven
out one way. They can only be driven out towards the
peened end.
C. Remove shaft (4).
CAUTION
CAUTION
WARNING
DANGER
When using heating devices, ensure that proper safe-
ty precautions are observed. Such items as the flam-
mability and toxicity of the control substance must be
considered and proper precautions taken.
Note: Difficulty is sometimes encountered when
removing the shaft from the valve. Application of heat to
the valve while using one of the following methods may
facilitate removal. IF THE VALVE IS LINED, HOWEVER,
USE OF HEAT IS NOT RECOMMENDED.
D. Replace lever (33) on splined end of shaft and tighten
capscrew (34). On units equipped with hand wheel use
both levers.
E.
With lever tightened firmly and using a soft faced
mallet, tap the lever (33) as close to the shaft as
possible and remove the shaft (4).
Note: If the shaft cannot be removed by tapping
tightened lever, Figure 18 illustrates an alternative
method of removal. Using a pipe nipple of suitable size
and length and reversing the packing flange and stud
nuts as shown, the shaft may be jacked out of the body.
For larger valves, the use of an additional washer and
nipple to assist in holding the tightened lever is recom
mended. The lever should be tightened at a point where
the lever is flush with the end of the spline.
F. The components which should come out with the
shall (4) are the bushing (3), spacer tube (5) and
packing adapter (6).
G. Remove the vane from the body.
Note: If the valve is equipped with a liner, remove
Orings (27).
H. Remove lower bushing (3) and spring (2).
Note: If the valve is lined, the liner must be pressed out
of the body to gain access to the lower bushing (3). The
spring (2) IS NOT USED in a lined valve. To remove the
liner, place a heavy steel plate (which is no larger than
the 0.D. of the liner) over the liner and support the body
on V blocks to allow clearance for the liner and press
out the liner. Lower bushing (3) may now be removed.
I. Refer to Valve Body Reassembly Sections - Lined and
Unlined Valves for reassembly.
