GE mn-36005_series Service Manual download pdf (Page 13)

Masoneilan 36005 Series High Capacity Control Ball Valves | 9

replace clevis pin (66), retaining clips (63), and pivot pins

(72).

H. Set and lock indicator arm (35) to indicate plug position.

I. Check that handwheel operates valve through full range

of travel. There is a 1/2" adjustment available at the end

of the handwheel extension. Retract handwheel, remove

end cap (51) and cap screw (55B). Rearrange stop (55A)

and/or spacer (55C) to obtain desired extension.

3�2 Bracket Subassembly – Model 33, size AC

only� Refer to section 3�1 for sizes B & C

3�2�1 Disassembly

When disconnecting actuator rod end bearing

from shaft arm, the ball is likely to rotate

toward the bottom of the valve body� Keep

hands and tools away from the ball�

A. Remove screw (43) and shaft cover (42) or positioner if

so equipped.

B. Remove retaining clips (40), pivot pin (39).

C. Remove actuator mounting nuts (75) and washers (76)

and remove actuator from bracket (31).

D. If valve has handwheel, remove retainer clip (54-7) and

washer (54-4). Remove handwheel assembly (54) from

bracket.

E. Loosen cap screw (36) and indicator arm (35). Remove

packing flange stud nuts (24) and bracket mounting

stud nuts (26) and washers (18).

F. Scribe a witness mark on the lever (32) indicating

relative position to the slot in the end of the shaft (5).

Loosen cap screw (11).

G. Slide bracket (31) off studs and shaft, removing

indicator arm (35), lever (32) and packing flange (23).

H. Remove bearing (47) and grommet (106) from bracket.

Examine all parts for wear and/or damage. Replace if

necessary.

3�2�2 Reassembly

A. Replace ball bearing (47) and grommet (106) in the

housing (31). Note, the grommet has a recessed area on

one side. It should be installed with that side should be

toward the inside of the bracket.

B. Place ball plug (2) in closed position. Slide bracket (31)

partially over shaft. Ensure all packing box parts are

in place and then slide packing flange (23) onto shaft.

Slide lever (32) onto shaft on its former position. Replace

indicator arm (35). Slide bracket fully onto mounting

studs (26); ensure shaft (5) is properly located in bearing

(47). Replace lockwasher (18) and bracket mounting

stud nuts (24) and tighten. Replace packing flange stud

nuts (24).

C. Pull shaft out to bottom against bearing. Replace

actuator and install washers (76) and nuts (75). Slide

lever (32) on shaft so that it is lined up with rod end

bearing (94). Tighten lever locking screw (33).

D. Place ball plug (2) in closed position. If valve action is

air to close, pneumatically stroke actuator fully. Loosen

rod end bearing locknut (93) and adjust rod end bearing

until holes in lever (32) and rod end bearing (94) line up.

Install pivot pin (39) and clips (40).

Do not exceed maximum air supply pressure

specified on the valve nameplate�

E. For both air to open and air to close action, stroke valve

fully to ensure proper closure of ball plug and operation

of valve. Tighten rod end bearing locknut (93).

When stroking valve keep hands and

equipment clear of ball plug and seal ring

to avoid injury or damage to personnel or

equipment� Do not exceed pressure specified

on the valve nameplate�

F. Replace shaft cover (42) and screw (43) (or positioner if

so equipped).

G. Replace handwheel assembly (54) in housing (31) and

replace washer (54-4) and retaining clip (54-7).

H. Set and lock indicator arm (35) to indicate plug position.

I. Check that handwheel operates valve through full range

of travel.

3�3 Body Subassembly

3�3�1 Packing

Note: The packing follower should be held firmly, but

not too tightly against the packing.

Overtightening of the packing causes excessive friction

and may affect valve operation. The packing in a new

V-Max valve has not been tightened prior to shipment. It

is recommended that further adjustments be made when

the valve is put into service. If necessary to add packing,

proceed as follows:

CAUTION

WARNING

DANGER

CAUTION

WARNING

DANGER

CAUTION

WARNING

DANGER

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GE mn-36005_series Service Manual Page 13

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