Baker Hughes Masoneilan V-Max 36005 Series User manual

Masoneilan™
36005 Series V-Max™
High Capacity Control Ball Valve
Instruction Manual (Rev.E)
Baker Hughes Data Classication: Public

b | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
THESE INSTRUCTIONS PROVIDE THE CUSTOMER/OPERATOR WITH IMPORTANT PROJECT-
SPECIFIC REFERENCE INFORMATION IN ADDITION TO THE CUSTOMER/OPERATOR’S
NORMAL OPERATION AND MAINTENANCE PROCEDURES. SINCE OPERATION AND
MAINTENANCE PHILOSOPHIES VARY, BAKER HUGHES COMPANY (AND ITS SUBSIDIARIES
AND AFFILIATES) DOES NOT ATTEMPT TO DICTATE SPECIFIC PROCEDURES, BUT TO
PROVIDE BASIC LIMITATIONS AND REQUIREMENTS CREATED BY THE TYPE OF EQUIPMENT
PROVIDED.
THESE INSTRUCTIONS ASSUME THAT OPERATORS ALREADY HAVE A GENERAL
UNDERSTANDING OF THE REQUIREMENTS FOR SAFE OPERATION OF MECHANICAL AND
ELECTRICAL EQUIPMENT IN POTENTIALLY HAZARDOUS ENVIRONMENTS. THEREFORE,
THESE INSTRUCTIONS SHOULD BE INTERPRETED AND APPLIED IN CONJUNCTION WITH
THE SAFETY RULES AND REGULATIONS APPLICABLE AT THE SITE AND THE PARTICULAR
REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE.
THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN
EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN
CONNECTION WITH INSTALLATION, OPERATION OR MAINTENANCE. SHOULD FURTHER
INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT
COVERED SUFFICIENTLY FOR THE CUSTOMER/OPERATOR’S PURPOSES THE MATTER
SHOULD BE REFERRED TO BAKER HUGHES.
THE RIGHTS, OBLIGATIONS AND LIABILITIES OF BAKER HUGHES AND THE CUSTOMER/
OPERATOR ARE STRICTLY LIMITED TO THOSE EXPRESSLY PROVIDED IN THE CONTRACT
RELATING TO THE SUPPLY OF THE EQUIPMENT. NO ADDITIONAL REPRESENTATIONS OR
WARRANTIES BY BAKER HUGHES REGARDING THE EQUIPMENT OR ITS USE ARE GIVEN
OR IMPLIED BY THE ISSUE OF THESE INSTRUCTIONS.
THESE INSTRUCTIONS ARE FURNISHED TO THE CUSTOMER/OPERATOR SOLELY TO
ASSIST IN THE INSTALLATION, TESTING, OPERATION, AND/OR MAINTENANCE OF THE
EQUIPMENT DESCRIBED. THIS DOCUMENT SHALL NOT BE REPRODUCED IN WHOLE OR IN
PART WITHOUT THE WRITTEN APPROVAL OF BAKER HUGHES.

Masoneilan 36005 Series Control Ball Valves Instruction Manual | c
Copyright 2020 Baker Hughes Company. All rights reserved.
Table Of Contents
Important : Safety Warning............................................................................................................ 1
1.0 Introduction............................................................................................................................... 2
Numbering System...................................................................................................................... 2
2.0 Installation................................................................................................................................. 4
2.1 General ................................................................................................................................. 4
2.2 Pipeline Mounting.................................................................................................................. 4
2.3 Air Piping............................................................................................................................... 4
2.4 Changing Actuator Position................................................................................................... 4
2.5 Changing valve ACTION....................................................................................................... 6
3.0 Maintenance.............................................................................................................................. 7
3.1 Bracket Subassembly Model 33, Sizes B & C ...................................................................... 7
3.2 Bracket Subassembly Model 33, Sizes AC........................................................................... 8
3.3 Body Subassembly ............................................................................................................... 9
3.3.1 PackinG ........................................................................................................................ 9
3.3.2 MN-7 Seal Ring ............................................................................................................ 9
3.3.3 Standard Metal Seal Ring............................................................................................. 9
3.3.4 Heavy Duty Metal Seal Ring....................................................................................... 10
3.3.5 Ball Plug...................................................................................................................... 10
3.4 Actuator Subassembly .........................................................................................................11
3.5 Handwheel Subassembly.................................................................................................... 12
3.6 Diaphragm Replacement .................................................................................................... 13
List of Figures
Figure 1 — Numbering System and Standard Mounting Positions............................................. 2
Figure 2 — General Assembly .................................................................................................. 15
Figure 3 — Actuator Sizes B & C Bracket & Linkage................................................................ 16
Figure 4 — Handwheel Assembly, Actuator Sizes B & C.......................................................... 16
Figure 5 — Handwheel Detail, Actuator Sizes B & C................................................................ 16
Figure 6 — Handwheel Bracket Detail, Sizes B & C................................................................. 16
Figure 7 — Handwheel Lever Detail, Sizes B & C.................................................................... 16

d | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
Figure 8 — Handwheel Clevis Detail, Sizes B & C ................................................................... 16
Figure 9 — AcTuator General Assembly, Sizes B & C .............................................................. 17
Figure 10 — Lever Position Air to Open, Sizes B & C .............................................................. 17
Figure 11 — Lever Position Air to Close, Sizes B & C .............................................................. 17
Figure 12 — Position Indicator Detail, Sizes B & C .................................................................. 18
Figure 13 — Size AC Actuator Assembly.................................................................................. 18
Figure 14 — Size AC Actuator Bottom View ............................................................................. 19
Figure 15 — Size AC Actuator Linkage Detail........................................................................... 19
Figure 16 — Size AC Handwheel Detail ................................................................................... 20
Figure 17 — insulation Detail.................................................................................................... 20
List of Tables
Table 1 — Body Parts List......................................................................................................... 21
Table 2 — Bracket and Linkage Parts List ................................................................................ 21
Table 3 — Handwheel Parts List............................................................................................... 22
Table 4 — Actuator Parts List.................................................................................................... 22
Table 5 — Line Bolting .............................................................................................................. 23

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 1
Copyright 2020 Baker Hughes Company. All rights reserved.
Safety Information
Important - Please read before installation
These instructions contain DANGER, WARNING, and
CAUTION labels, where necessary, to alert you to safety related
or other important information. Read the instructions carefully
before installing and maintaining your control valve. DANGER
and WARNING hazards are related to personal injury. CAUTION
hazards involve equipment or property damage. Operation
of damaged equipment can, under certain operational
conditions, result in degraded process system performance
that can lead to injury or death. Total compliance with all
DANGER, WARNING, and CAUTION notices is required for
safe operation.
CAUTION
CAUTION
WARNING
DANGER
This is the safety alert symbol. It alerts you to potential personal
injury hazards. Obey all safety messages that follow this symbol
to avoid possible injury or death.
CAUTION
CAUTION
WARNING
DANGER
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
CAUTION
WARNING
DANGER
Indicates a potentially hazardous situation which, if not avoided,
could result in serious injury.
CAUTION
CAUTION
WARNING
DANGER
Indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
CAUTION
CAUTION
WARNING
DANGER
When used without the safety alert symbol, indicates a potentially
hazardous situation which, if not avoided, could result in property
damage.
Note: Indicates important facts and conditions.
About this Manual
• The information in this manual is subject to change without
prior notice.
• The information contained in this manual, in whole or part,
shall not be transcribed or copied without Baker Hughes’s
written permission.
• Please report any errors or questions about the information
in this manual to your local supplier.
• These instructions are written specifically for the V-Max
36005 Series, and do not apply for other valves outside of
this product line.
Life Period
The current estimated useful life period for the V-Max 36005
Series is 25+ years. To maximize the useful life of the product, it
is essential to conduct annual inspections, routine maintenance
and ensure proper installation to avoid any unintended stresses
on the product. The specific operating conditions will also impact
the useful life of the product. Consult the factory for guidance on
specific applications if required prior to installation.
Warranty
Items sold by Baker Hughes are warranted to be free from defects
in materials and workmanship for a period of one year from the
date of shipment provided said items are used according to
Baker Hughes recommended usages. Baker Hughes reserves
the right to discontinue manufacture of any product or change
product materials, design or specifications without notice.
Note: Prior to installation
• The valve must be installed, put into service and maintained
by qualified and competent professionals who have
undergone suitable training.
• All surrounding pipe lines must be thoroughly flushed to
ensure all entrained debris has been removed from the
system.
• Under certain operating conditions, the use of damaged
equipment could cause a degradation of the performance
of the system which may lead to personal injury or death.
• Changes to specifications, structure, and components
used may not lead to the revision of this manual unless
such changes affect the function and performance of the
product.

2 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
1.0 Introduction
The following instructions are designed to assist maintenance
personnel in performing most of the maintenance required
on the 36005 V-Max valve and if followed carefully will reduce
maintenance time.
Baker Hughes has highly skilled Service Engineers available for
start-up, maintenance and repair of our valves and component
parts. In addition, regularly scheduled training programs are
conducted to train customer service and instrumentation
personnel in the operation, maintenance and application of our
control valves and instruments. Arrangements for these services
can be made through your Baker Hughes Representative
or District Office. When performing maintenance use only
Masoneilan replacement parts. Parts are obtainable through
your local Baker Hughes Masoneilan Representative or District
Office. When ordering parts always include MODEL and SERIAL
NUMBER of the unit being repaired.
Numbering System
2nd
6
5th
5
4th3rd
2nd
1st 1st
3
0 Undefined
1 Valve closes on stem
extension (Air to Close,
Fail Open)
2 Valve opens on stem
extension (Air to Open,
Fail Closed
3 Valve closes on stem
extension (Air-to-Close,
Fail Open)
4 Valve opens on stem
extension (Air-to-Open,
Fail Closed)
7 Valve closes on stem
extension (Air-to-Close,
Fail Open)
8 Valve opens on stem
extension (Air-to-Open,
Fail Closed)
Actuator Mounting
(See guide on page 4)
Body Series
36 5
Design Series
1 MN-7 Seal Ring
2 316 SS Seal
Ring
3 Heavy Duty
Metal Seal Ring
Seal TypeActuator Type
33 Spring Diaphragm.
Air to extend action only.
Figure 1 - Numbering System and Standard Mounting Positions

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 3
Copyright 2020 Baker Hughes Company. All rights reserved.
Actuator Model 33, Size AC
Actuator Model 33, Sizes B and C
Masoneilan 36005 Series V-Max Valves 3 X 3 6 X 0 5
Actuator Position in Relation to Valve Body
Numbering System: 1 to 8

4 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
2.0 Installation
2.1 General
2.1.1 Unpack valve carefully to avoid damage to valve,
accessories, or tubing.
2.1.2 Record all valve and accessory serial plate data for future
reference. Always provide serial and model numbers when
ordering spare parts.
2.2 Pipeline Mounting
CAUTION
CAUTION
WARNING
DANGER
Do not remove button head screw (9) and washer (10)
during installation.
The function of these parts is to hold the retainer (3) and seal ring
(8) in place and should be removed only when the valve is to be
disassembled for maintenance (Figure 2).
A. Before installing the valve in the line, clean pipe and valve
of all foreign materials such as welding chips, scale, oil,
grease or dirt. Gasket surfaces must be thoroughly cleaned
to ensure leak free joints.
B. Install valve in a horizontal or vertical line with the flow tending
to push the seal ring (8) against the ball (2) as indicated by
the flow arrow cast into the body. It is recommended that
if adjacent walls and piping permit, the valve be oriented
such that the ball opens upward. This is especially important
when handling slurries. See Figure 1 for actuator mounting
positions and for flow direction and Table 5 for line flange
bolting lengths. Note: Flange bolt lengths are non-standard
on inlet and standard on outlet side.
C. The 36005 V-Max is designed to be installed such that
the shaft is horizontal. This applies to both horizontal or
vertical pipe orientations. Installation with the shaft in a
vertical position may result in reduced shutoff and/or control
performance and is not recommended.
D. Tighten bolting evenly and in crisscross fashion so that the
retainer (3) held in place by the line flange will bear evenly
against the seal ring (8).
E. The linkage of the 36005 V-Max valve has been properly
adjusted at the factory and requires no further adjustment.
F. Where insulation of the valve body is required, do not insulate
the valve bonnet. See Figure 17.
2.3 Air Piping
2.3.1 Air piping must be adequately sized to provide the regulated
supply pressure specified on the nameplate. As a general
guideline, use 1/4" O.D. tubing or equivalent for all air lines. If
supply air line exceeds 25 feet in length, use 3/8" O.D. tubing.
2.3.2 The actuator is furnished with a 1/4" NPT instrument air port
on the upper case.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed loading pressure specied on the valve
nameplate.
2.4 Changing Actuator Position
2.4.1 Model 33, sizes B & C. For Size AC, refer to section
2.4.2.
CAUTION
CAUTION
WARNING
DANGER
Before proceeding with changing actuator position,
air action or valve maintenance, isolate valve, vent
process pressure and shut off air supply and signal
air lines or electrical lines to unit. It is recommended
that the valve be removed from the pipeline prior to
maintenance work. Keep hands and tools away from
the segmental ball, particularly when disconnecting
the actuator stem from shaft arm as ball may rotate
freely to its lowest position.
For each valve action (air to open/air to close) the actuator may
be positioned to either side of the pipe. Actuator position is usually
determined by adjacent piping, obstacles of various types or air
piping arrangements. To reposition the actuator and/or bracket
follow the disassembly and reassembly instructions below.
Note: Actuator positioning should be performed prior to
installing the valve in the pipeline. To change actuator
position and/or valve action refer to Figure 1 for desired
position.
A. Remove valve from process line after closing isolating valves
and disconnecting all pneumatic tubing and electrical wiring.
B. If valve is equipped with a handwheel (Figure 4) disengage
handwheel and remove retaining clips (63), clevis pin (66)
and pivot pins (72); remove entire hand- wheel assembly
from bracket (62).
C. Remove pivot pin retaining clips (40), pivot pin (39) and
spacer rings (69). Remove actuator hex nuts (75) and
washers (76). Remove actuator.
Note: Spacer rings apply only on handwheel option.
D. Remove shaft cover (42) and screw (43). Loosen lever cap
screw (33). Remove packing flange stud nuts (24), bracket
mounting stud nuts (24) and washers (18). Loosen ball plug
indicator arm (35).
E. If necessary, scribe a witness line on the lever (32) in relation
to the slot on the end of the shaft (5). Note: Standard lever
has arrows stamped into it for alignment. For handwheel
lever use slot for alignment.

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 5
Copyright 2020 Baker Hughes Company. All rights reserved.
F. Slide bracket (31) away from body until it clears bracket and
packing flange studs (26 and 25), allowing lever (32) lever
arm (64) and indicator arm (35) to be removed from shaft.
Total removal of the bracket is not required.
CAUTION
CAUTION
WARNING
DANGER
Before proceeding determine valve action (air to
open/air to close), refer to the appropriate gure
(Figure 10 to open, Figure 11 to close). To obtain
proper alignment, the lever must be oriented on
the shaft so that the slot in the end of the shaft
and arrows or indicator lines are aligned as
shown; with the ball in the closed position, the
distance between the top of the bracket and the
top of the pivot pin must be as shown.
G. Slide lever (32) and lever arm (64) back onto shaft in desired
position. Slide indicator arm (35) back onto shaft. Align
bracket and slide back onto bracket mounting studs (26) and
packing flange studs (25). Replace bracket mounting stud
nuts (24) and washers (18). Slide packing flange (23) back
onto packing flange studs (25) and replace packing flange
stud nuts (24).
H. Remount actuator onto bracket and replace actuator
mounting hex nuts (75) and washers (76). Position lever (32)
and lever arm (64) so that rod end bearing (94) lines up in
lever (32). Tighten lever cap screws (34).
I. Rotate ball plug (2) to closed position. If actuator action is
air to open loosen rod end bearing locknut (93) and adjust
position of rod end bearing (94) so that holes in lever (32)
and rod end bearing (94) line up. Insert pivot pin (39) and
replace spacer rings (69) and retaining rings (40).
CAUTION
CAUTION
WARNING
DANGER
When stroking valve keep hands and equipment
clear of ball plug and seal ring to avoid injury or
damage to personnel and equipment.
J. If action is air to close place ball plug (2) in closed position
and pneumatically stroke actuator fully.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure.
Keep hands clear of actuator stem and linkage.
Loosen rod end bearing locknut (93) and adjust rod end
bearing (94) so that holes in lever (32) and rod end bearing
(94) line up. Insert pivot pin (39) and spacers (69) and replace
retaining rings (40).
K. For both air to open and air to close action, stroke valve fully
to ensure proper closure of ball plug and operation of valve.
It may be necessary to readjust rod end bearing slightly by
loosening locknut and rotating stem.
L. Replace handwheel assembly in bracket (62), pivot pins (72)
and retaining clips (63).
M. Replace shaft cover (42) and screw (43).
N. Set and lock indicator arm (35) to indicate plug position.
2.4.2 Changing Actuator Position Model 33, size AC only.
CAUTION
CAUTION
WARNING
DANGER
Before proceeding with changing actuator position,
air action or valve maintenance, isolate valve, vent
process pressure and shut off air supply and signal air
lines or electrical lines to unit. It is recommended that
the valve be removed from the pipeline prior to main-
tenance work. Keep hands and tools away from the
segmental ball, particularly when disconnecting the
actuator stem from shaft arm as ball may rotate freely
to its lowest position.
For each valve action (air to open/air to close) the actuator may
be positioned to either side of the pipe. Actuator position is usually
determined by adjacent piping, obstacles of various types or air
piping arrangements. To reposition the actuator and/or bracket
follow the disassembly and reassembly instructions below.
Note: Actuator positioning should be performed prior to
installing the valve in the pipeline. To change actuator
position and/or valve action refer to Figure 1 for desired
position.
A. Remove valve from process line after closing isolating valves
and disconnecting all pneumatic tubing and electrical wiring.
B. If valve is equipped with a handwheel (Figures 13 & 16)
disengage handwheel and remove retaining clip (54-7) and
washer (54-4). Remove entire handwheel assembly from
actuator housing (31).
C. Remove pivot pin retaining clips (40), pivot pin (39). Remove
actuator hex nuts (75) and washers (76). Remove actuator.
D. Remove shaft cover (42) and screw (43). Loosen lever cap
screw (33). Remove packing flange stud nuts (24), bracket
mounting stud nuts (24) and washers (18). Loosen ball plug
indicator arm (35).
E. If necessary, scribe a witness line on the lever (32) in relation
to the slot on the end of the shaft (5).
F. Slide housing (31) away from body until it clears bracket and
packing flange studs (26 and 25), allowing lever (32) and
indicator arm (35) to be removed from shaft. Total removal of
the bracket is not required.
CAUTION
CAUTION
WARNING
DANGER
Before proceeding determine valve action (air to
open/air to close).
G. Slide lever (32) back onto shaft in desired position. Slide
indicator arm (35) back onto shaft. Align bracket and slide
back onto mounting studs (26) and packing flange studs
(25). Replace mounting stud nuts (24) and washers (18).
Slide packing flange (23) back onto packing flange studs
(25) and replace packing flange stud nuts (24).

6 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
H. Remount actuator onto housing and replace actuator
mounting hex nuts (75) and washers (76). Position lever (32)
so that rod end bearing (94) lines up in lever (32) and that the
pads on the lever will contact the stop bolts (102). Tighten
lever cap screw (33).
I. Rotate ball plug (2) to closed position. Adjust closed position
travel stop (102) until it contacts the pad on lever (32).
Tighten locknut (101).
J. Rotate ball plug (2) to open position. Adjust open position
travel stop until it contacts pad on lever (32). Tighten locknut
(101).
CAUTION
CAUTION
WARNING
DANGER
Ensure rotation of AC actuator does not exceed
90deg. Damage to actuator rod may result.
K. If actuator action is air to open, rotate ball plug (2) to open
position. Pneumatically stroke actuator to open position.
Loosen rod end bearing locknut (93) and adjust position of
rod end bearing (94) so that holes in lever (32) and rod end
bearing (94) line up. Insert pivot pin (39) and retaining rings
(40).
CAUTION
CAUTION
WARNING
DANGER
When stroking valve keep hands and equipment
clear of ball plug and seal ring to avoid injury or
damage to personnel and equipment.
L. If action is air to close place ball plug (2) in closed position.
The pad on lever should contact the closed position travel
stop (102). If it does not, repeat adjustment as noted in step
I above. Return ball plug (2) to open position. Pneumatically
stroke actuator to open position.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure.
Keep hands clear of actuator stem and linkage.
Loosen rod end bearing locknut (93) and adjust rod end bearing
(94) so that holes in lever (32) and rod end bearing (94) line up.
Insert pivot pin (39) and replace retaining rings (40).
M. For both air to open and air to close action, stroke valve fully
to ensure proper closure of ball plug and operation of valve.
It may be necessary to readjust rod end bearing slightly by
loosening locknut and rotating stem.
N. Replace handwheel assembly in housing (31), washer (54-7)
and retaining clip (54-4).
O. Replace shaft cover (42) and screw (43).
P. Set and lock indicator arm (35) to indicate plug position.
2.5 Changing Valve Action
Note: If the valve action is to be changed it should be done
before the valve is installed in the line. This allows a positive
visual check to ensure that the ball plug is fully closed when
the actuator is in the proper position.
2.5.1 Model 33, sizes B & C only. For size AC refer to section
2.5.2
A. If the valve is equipped with a handwheel disengage the
handwheel and remove retaining clips (63), clevis pin (66),
and pivot pins (39). Remove cap screws (70), washers (71)
and handwheel bracket (62).
B. If necessary, scribe a witness mark on the lever (32) in relation
to the slot on the end of the shaft (5). Note: Standard lever
has arrows stamped into it for alignment. For handwheel
lever use slot for alignment.
C. Remove pivot pin retaining clips (40), pivot pin (39) and
spacer rings (69). Remove shaft cover (42) and screw (43).
Remove actuator hex nuts (75) and washers (76). Remove
actuator.
Note: Spacer rings apply only on handwheel option.
D. Loosen lever cap screw (33). Remove packing flange stud
nuts (24), bracket mounting stud nuts (24) and washers (18).
Loosen ball plug indicator arm (35).
E. Slide bracket (31) away from body until it clears bracket and
packing flange mounting studs. Remove lever (32), lever
arm (64) and indicator arm (35) from shaft.
CAUTION
CAUTION
WARNING
DANGER
Before proceeding determine valve action (air to
open/air to close), refer to the appropriate gure
(Figure 10 to open, Figure 11 to close). To obtain
proper alignment, the lever must be oriented on
the shaft so that the slot in the end of the shaft
and arrows or indicator lines are aligned as
shown; with the ball in the closed position, the
distance between the top of the bracket and the
top of the pivot pin must be as shown.
F. Flip lever (32) and lever arm (64) and replace on shaft 90
away from original position. Replace indicator arm (35).
Slide bracket back onto bracket mounting studs (26), replace
washers (18) and nuts (24) and tighten. Slide packing flange
(23) back over packing flange studs (25) and replace packing
flange stud nuts (24) and tighten.
G. Replace actuator on bracket in correct mounting position for
air action. Replace actuator stud nuts (75) and washers (76).
Position lever (32) and lever arm (64) so that rod end bearing
(94) lines up in lever (32). Tighten lever cap screw (33).
H. Place ball plug (2) in closed position. If actuator action is air
to open, loosen rod end bearing nut (93) and adjust position
of rod end bearing (94) so that holes in lever (32) and rod
end bearing (94) line up. Insert pivot pin (39) and replace
retaining rings (40).
I. If action is air to close, place ball plug (2) in closed position
and pneumatically stroke actuator fully.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure.
J. 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).

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 7
Copyright 2020 Baker Hughes Company. All rights reserved.
CAUTION
CAUTION
WARNING
DANGER
When stroking valve keep hands and equipment
clear of ball plug and seal ring to avoid injury or
damage to personnel or equipment.
K. Replace handwheel bracket (62), cap screws (70) and
lockwashers (71) on opposite side of actuator bracket from
where originally found. Insert handwheel assembly in bracket
and replace clevis pin (66), retaining rings (63), lever arm
bearing (65) and pivot pins (72). Replace shaft cover (42)
and screw (43).
L. Set and lock indicator (35) to indicate plug position.
2.5.2 Model 33, size AC only. For sizes B & C refer to section
2.5.1 above.
A. If the valve is equipped with a handwheel disengage the
handwheel and remove retaining clip (54-7) and washer (54-
4). Remove handwheel assembly (54) from housing (31) by
rotating counter-clockwise.
B. Remove pivot pin retaining clips (40), pivot pin (39). Remove
actuator hex nuts (75) and washers (76). Remove actuator.
C. Remove cover (48) from opposite side of bracket (31) and
install on side actuator was just removed from.
Note: Cover (48) is attached to yoke with contact adhesive
that is pre-applied. If a new cover is not available, it can
be re-installed by applying contact adhesive to the cover
and bracket following the instructions for the specific
adhesive used.
D. Install actuator on opposite side of yoke than it was removed
from. Attach using washers (76) and hex nuts (75).
CAUTION
CAUTION
WARNING
DANGER
Before proceeding determine valve action (air to
open/air to close).
E. Rotate ball plug (2) to closed position. Verify closed position
travel stop (102) contacts the pad on lever (32). Adjust as
necessary. Tighten locknut (101).
CAUTION
CAUTION
WARNING
DANGER
Ensure rotation of AC actuator does not exceed
90deg. Damage to actuator rod may result.
F. Rotate ball plug (2) to open position. Verify open position
travel stop contacts pad on lever (32). Adjust as necessary.
Tighten locknut (101).
G. If actuator action is air to open, rotate ball plug (2) to open
position. Pneumatically stroke actuator to open position.
Loosen rod end bearing locknut (93) and adjust position of
rod end bearing (94) so that holes in lever (32) and rod end
bearing (94) line up. Insert pivot pin (39) and retaining rings
(40).
CAUTION
CAUTION
WARNING
DANGER
When stroking valve keep hands and equipment
clear of ball plug and seal ring to avoid injury or
damage to personnel and equipment.
H. If action is air to close place ball plug (2) in closed position.
The pad on lever should contact the closed position travel
stop (102). If it does not, repeat adjustment as noted in step
I above. Return ball plug (2) to open position.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure.
Keep hands clear of actuator stem and linkage.
Loosen rod end bearing locknut (93) and adjust rod end
bearing (94) so that holes in lever (32) and rod end bearing
(94) line up. Insert pivot pin (39) and replace retaining rings
(40).
I. For both air to open and air to close action, stroke valve fully
to ensure proper closure of ball plug and operation of valve.
It may be necessary to readjust rod end bearing slightly by
loosening locknut and rotating stem.
J. Replace handwheel assembly (54) in bracket (31), washer
(54-7) and retaining clip (54-4).
K. Set and lock indicator arm (35) to indicate plug position.
3.0 Maintenance
3.1 Bracket Subassembly – Model 33,
sizes B & C only. Refer to section 3.2
for size AC
3.1.1 Disassembly
CAUTION
CAUTION
WARNING
DANGER
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) and spacer rings
(69).
Note: Spacer rings apply only on handwheel option.
C. Remove actuator mounting nuts (75) and washers (76) and
remove actuator from bracket (31).
D. If valve has handwheel, remove retainer clips (63), clevis
pin (66), pivot pins (72). Remove handwheel assembly from
bracket.
E. Loosen cap screw (33) and indicator arm (35). Remove
packing flange stud nuts (24) and bracket mounting stud nuts
(26) and washers (18).

8 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
F. Scribe a witness mark on the lever (32) indicating relative
position to the slot in the end of the shaft (5).
G. Slide bracket (31) off studs and shaft, removing indicator arm
(35), lever (32), lever arm (64) and packing flange (23).
H. Remove bearing (47) from bracket. Examine all parts for
wear and/or damage. Replace if necessary.
3.1.2 Reassembly
Note: If the valve is equipped with a handwheel the lever
consists of two separate arms which are a MATCHED
PAIR and are not interchangeable with any other pair. The
sequence of assembly is to place one lever over the shaft
then the lever arm (64) insert pin (68), and then the second
lever arm onto the shaft then slide the shaft into the bracket
and bearing.
A. Replace ball bearing (47) in the bracket (31).
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. Slide handwheel lever arm
(64) and second lever (32) onto shaft if valve has handwheel.
Replace indicator arm (35). Slide bracket fully onto mounting
studs (26); ensure shaft (5) is properly located in bearing
(47). Replace lock-washer (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. If valve action is air to open place ball plug (2) in closed
position. 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), spacers (69) (handwheel only)
and retainer rings (40). If valve action is air to close, place
ball plug (2) in closed position and pneumatically stroke
actuator fully.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure
specied 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).
CAUTION
CAUTION
WARNING
DANGER
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 specied on the valve nameplate.
F. Replace shaft cover (42) and screw (43) (or positioner if so
equipped).
G. Replace handwheel assembly in bracket (62) and 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
CAUTION
CAUTION
WARNING
DANGER
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).

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 9
Copyright 2020 Baker Hughes Company. All rights reserved.
CAUTION
CAUTION
WARNING
DANGER
Do not exceed maximum air supply pressure
specied 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).
CAUTION
CAUTION
WARNING
DANGER
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 specied 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
CAUTION
WARNING
DANGER
Valve must be isolated and process pressure vented
before performing packing box maintenance.
3.3.1.1 Disassembly
A. Loosen and remove packing flange nuts (24) and slide
packing flange (23) and packing follower (20) toward shaft
lever (32).
Note: The lever (32) may be disconnected from the
actuator stem and pushed up against the shaft bearing
(47) (refer to section 3.1), if necessary for clearance.
B. Using a packing hook, remove the top pieces of packing
rings.
3.3.1.2 Reassembly
A. Install new packing ring(s), making sure the skive cut in
adjacent packing rings is offset 120° apart.
B. Replace packing follower (20) packing box flange (23) and
packing nuts (24).
C. Evenly tighten packing nuts (24).
CAUTION
CAUTION
WARNING
DANGER
DO NOT overtighten packing nuts.
D. Place valve into service and tighten packing nuts (24) only as
much as necessary to stop any leakage.
3.3.2 Seal Ring – MN-7 Seal
3.3.2.1 Disassembly
Note: Seal ring removal, inspection and reinstallation must
be done with the valve removed from the pipeline.
A. Remove screws (9) and washers (10), retainer (3), MN-7
seal ring (8) and downstream back-up ring (32).
B. Remove gasket (4) residue from body and retainer taking
care not to damage seal surfaces.
3.3.2.2 Reassembly
A. Move ball to the closed position.
Note: Use a light coating of Dow-Corning 111® or equal
on the ball plug to break in seat.
B. Replace backup ring (32), seal assembly, gasket (4) and
retainer (3). Take care that beveled edges of seal (8) and
backup ring (32) are facing the ball.
C. Replace set screws (9) and washers (10) and tighten.
3.3.3 Seal Ring – Standard Metal Seal
3.3.3.1 Disassembly
Note: Seal ring removal, inspection and reinstallation must
be done with the valve removed from the pipeline.
A. Remove screws (9) and washers (10).
Note: The flexible metal seal assembly consists of a seal
ring (8), gasket (7), and backup ring (6).
B. Mark flexible metal seal ring (8) so that, if reinstalled, the
same side will be in contact with the ball. Remove retainer,
seal assembly and downstream back-up ring (32). If difficulty
is encountered in removing seal assembly, rotate the ball to
open position and pull out the seal ring.
C. Remove gasket (4) residue from body and retainer taking
care not to damage seal surfaces.
D. If replacing MN-7 or flat metal seal with HD metal version,
upper and lower guide bushings (16, 17) should be replaced
with satellite material.
3.3.3.2 Reassembly
Note: If retrofitting a valve originally equipped with an MN-7
seal ring follow steps A through D. If valve was originally
supplied with a metal seal, please proceed to step C.
A. Clean the contact surfaces of the ball plug (2) with alcohol
or other suitable degreaser to facilitate application of the dry
graphite spray lubricant. If necessary, very mild abrasive
pads such as Scotch-Brite™ may be used to remove any
oxide layers on the ball plug (2).
B. Apply the dry graphite lubricant spray (Dow- Corning 321®)
in several light coats on the plated seal contact surfaces of
the ball plug (2). Allow the graphite spray to dry fully – which
will produce a dull gray finish on the coated parts.

10 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
C. Move ball to the closed position.
D. Replace downstream back-up ring (32), seal assembly,
gasket (4) and retainer (3). Take care that beveled edge
flexible metal seal (8) and backup rings (6 & 32) are facing
the ball.
E. Replace set screws (9) and washers (10) and tighten.
3.3.4 Seal Ring – Heavy Duty Metal Seal
3.3.4.1 Disassembly
Note: Seal ring removal, inspection and reinstallation must
be done with the valve removed from the pipeline.
A. Remove screws (9) and washers (10).
Note: The Heavy Duty Metal Seal assembly consists of a
seal ring (8), radial seal (30) and wave spring (31).
B. Note the orientation of the radial seal (30) and wave washer
(31) for reassembly.
C. Clean parts of any residue that remains from the process.
Take care not to damage or mark the sealing surfaces of seal
ring (8) or radial seal (30).
3.3.4.2 Reassembly
Note: If retrofitting a valve originally equipped with an
MN-7 seal ring follow steps A through D. If valve was
originally supplied with a metal seal, please proceed to
step C.
A. Clean the contact surfaces of the ball plug (2) with alcohol
or other suitable degreaser to facilitate application of the dry
graphite spray lubricant. If necessary, very mild abrasive
pads such as Scotch-Brite™ may be used to remove any
oxide layers on the ball plug (2).
B. Apply the dry graphite lubricant spray (Dow- Corning 321®)
in several light coats on the plated seal contact surfaces of
the ball plug (2). Allow the graphite spray to dry fully – which
will produce a dull gray finish on the coated parts.
C. Move ball to the closed position
D. Lubricate the Radial Seal (30) with Dow-Corning 111®
Silicon grease (or equivalent) and install it over the end of
the Heavy Duty Seal Ring (8).
Note: The open lips of the radial seal (30) must face
AWAY from the seat bevel and ball.
E. Install the Wave Spring (31) over the end of the Heavy Duty
Seal Ring (8).
F. Insert the Seat Retainer (3) over the end of the Seat (8) and
apply even pressure to overcome the resistance of the radial
seal (30) until the wave spring (31) is compressed.
G. Install the retainer/body gasket (4).
H. Install the seat (8), retainer (3), radial seal (101) and wave
spring (102) assembly into the body counterbore until contact
is made with the ball plug (2).
I. Install retainer screws (9) and washers (1) and tighten to
secure the retainer and seal assembly in the body.
3.3.5 Ball Plug
3.3.5.1 Ball Plug Disassembly
A. Remove bracket (see section 3.3.2).
B. Remove screws (9) and washers (10). Slide the retainer (3)
out of the valve body. Remove seal assembly (refer to Para.
3.2.2.1 Seal Ring - Disassembly).
C. Remove safety pin (27). Remove the shaft (5) from the valve
body. The packing (19), packing adaptor (28) and packing
follower (20) will slide out with the shaft. If the shaft will not
move, thread nuts (24) on the packing studs, then place
the packing flange (23) on top of the nuts. Slide the lever
(32) onto the shaft (5) up against the packing flange (23)
and tighten screw (34). By unscrewing the packing nuts (24)
evenly, ample force is developed to move the shaft (5). Once
shaft has been started, it should be possible to remove the
shaft completely. If not, a suitable size bolt screwed into the
tapped hole on the shaft end can be used as a shaft “puller”.
D. Remove nuts (13), end flange (14), pin shaft (11) and gasket
(15). If the pin shaft will not move, push it out with a rod
inserted through the bonnet end of the valve.
E. Remove the ball (2) and separate the lower bushing (16)
from it. Remove the upper bushing (17). If it sticks, the upper
bushing (17) can be pushed out with a rod of suitable size
inserted into the pin shaft end of the body.
F. Examine all parts for damage due to erosion, corrosion, or
wear. Replace the seal ring if damaged, worn or distorted.
Replace all defective parts and all packing and gaskets.
Clean the valve parts thoroughly before reassembly. Remove
gasket (4) and (15) residue from body and retainer taking
care not to score sealing areas.
3.3.5.2 BaIl Plug Reassembly
Note: If installing a new ball plug into a valve equipped with
either the standard metal or Heavy Duty metal seal rings, the
ball plug must be first coated with dry graphite lubricant as
described in steps A and B. If equipped with an MN-7 seal
ring, proceed to step C.
A. Clean the contact surfaces of the ball plug (2) with alcohol
or other suitable degreaser to facilitate application of the dry
graphite spray lubricant. If necessary, very mild abrasive
pads such as Scotch-Brite™ may be used to remove any
oxide layers on the ball plug (2).
B. Apply the dry graphite lubricant spray (Dow- Corning 321®)
in several light coats on the plated seal contact surfaces of
the ball plug (2). Allow the graphite spray to dry fully – which
will produce a dull gray finish on the coated parts.
C. Replace lower bushing (16) in the ball and position ball in the
body. Replace gasket (15).
D. Lubricate pin shaft (11) and insert through body and into
the ball. Secure with end flange (14) and end flange nuts
(13). Tighten nuts alternately to assure tight seal against the
gasket. (Recommended lubricant SAF-T-EZE Anti-Seize or
equal.)
E. Replace ring (29), and upper bushing (17)on the shaft (5).
Install shaft in the body andengage the ball such that when
the ball is in the closed position, the machined slot in the
shaft end is vertical (perpendicular to the body axis). Coat
shaft below ring groove and bushing with lubricant (SAF-T-
EZE Anti-Seize or equal).
F. Install packing adaptor (28), bevel side out over the shaft (5)
and into the valve bonnet so that the hole through the side
of the adaptor is aligned with the tapped hole through the
bonnet for the safety pin (27).
G. Apply pipe sealant to the safety pin, install into bonnet and
tighten.

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 11
Copyright 2020 Baker Hughes Company. All rights reserved.
CAUTION
CAUTION
WARNING
DANGER
Safety pin must engage hole in packing adaptor.
Test by manually pulling on shaft to verify pin
engagement.
H. Install packing (19) so that skive cut of each piece of packing
is offset approximately 120° from that of adjacent piece.
I. Install packing follower (22) over shaft and into bonnet with
bevel side out. Install packing box flange (23) and nuts (24).
J. Install seal ring and retainer assembly as described in section
3.3.2, 3.3.3 or 3.3.4 depending on seal type.
K. Install mounting bracket (31) and lever (32). Follow instruction
3.1.2 Bracket Reassembly.
L. Evenly tighten packing flange nuts (24) against packing
flange (23) before placing valve into service.
CAUTION
CAUTION
WARNING
DANGER
DO NOT over tighten packing ange nuts. After
valve has been in service, retighten packing ange
nuts evenly until any leaks are stopped.
3.4 Actuator Subassembly.
3.4.1 Model 33, sizes B & C. Refer to section 3.7 for size AC
actuators.
3.4.1.1 Disassembly
CAUTION
CAUTION
WARNING
DANGER
The upper diaphragm case (84) is under spring ten-
sion. A warning tag (97) is attached to each of the
three (3) long cap screws (95). The tension nuts (96)
attached to cap screws (95) must be evenly removed
last. The following procedure must be followed to
avoid injury.
A. Isolate the valve, vent process pressure and shut off all
electrical, signal air and supply air lines to the valve.
B. If equipped with a handwheel, it must be rotated to the
disengaged position.
C. Remove air supply piping to upper diaphragm case (84).
D. Remove side covers (46).
E. Remove retaining clips (40) and remove pivot pin (39) and
spacers (69) (handwheel only) to free rod end bearing (94).
F. Loosen and remove all short cap screws (86) and hex nuts
(87). Mark upper case (84) and lower case (20) so that they
can be reassembled with the same orientation of air inlet and
mounting bolts.
G. Loosen each tension nut (96) approximately three full turns.
CAUTION
CAUTION
WARNING
DANGER
The upper diaphragm case (84) should separate
from the lower case (91) as the tension nuts are
loosened the three turns. If it does not, before
proceeding, separate the upper diaphragm case
(84) by tapping it around the circumference or in-
serting a screwdriver between the upper (84) and
lower case (91). If the cases still do not separate,
check that the actuator stem is not hung up inside
the bracket. DO NOT PROCEED WITH DISAS-
SEMBLY UNLESS THE CASES CAN SEPARATE
FREELY.
H. Continue loosening the tension nuts (96) evenly approximately
three turns each time ensuring that the upper diaphragm
case (84) and diaphragm (85) continue to separate.
Note: Continue Step H until the tension nuts (96) can be
easily removed by hand indicating the upper diaphragm
case (84) is not under spring tension.
I. Remove tension bolts (95) and upper diaphragm case (84).
J. Remove diaphragm (85) and diaphragm plate subassembly
from the actuator.
K. Remove retaining clip (78). Remove clevis pivot pin (79).
Inspect for damage and/or wear in clevis (80), lever (32),
clevis pins (79, 39) and rod end bearings (94). Replace if
necessary.
L. Clean all mating/sealing surfaces which will come in contact
with the diaphragm (85).
3.4.1.2 Reassembly
A. Connect rod end bearing (94) to diaphragm plate clevis (80)
by installing clevis pin (79) and retaining clips (78). Ensure
that the stem (77) is installed such that the wrench flats are
at the end furthest from the diaphragm plate (88).
B. Ensure spring (90) and spring guide (89) are properly aligned
in lower case (91) and install the diaphragm plate and stem
subassembly. Replace diaphragm (85).
C. Align marks for correct orientation of upper case (84) and
lower case (91). Replace upper diaphragm case (84) and
install long cap screws (95), warning plate (97) and tension
nuts (96).
Note: These bolts must be equally spaced at 120°
intervals.
D. Take up tension nuts (96) evenly and sufficiently to allow
installation of short cap screws (83) and hex nuts (87).
E. Tighten tension nuts (96) and then tighten all hex nuts (87)
using a criss-cross tightening pattern.
Note: Nuts should be tightened only enough to seal the
diaphragm between the upper and lower case. Do not
overtighten.
F. Connect rod end bearing (94) to lever (32) by installing pivot
pin (39), spacers (69) (handwheel only), and retaining clips
(40).
G. Replace side covers (46) and reconnect signal and supply
lines.
H. Place back in service and, if so equipped, rotate handwheel
to desired position.

12 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
3.4.2 Actuator Subassembly – Model 33, size AC. Refer to
section 3.4.1 for sizes B & C. Figures 13, 14, 15 & 16.
3.4.2.1 Disassembly
CAUTION
CAUTION
WARNING
DANGER
The upper diaphragm case (84) is under spring ten-
sion. A warning tag (97) is attached to each of the
three (3) long cap screws (95). The tension nuts (96)
attached to cap screws (95) must be evenly removed
last. The following procedure must be followed to
avoid injury.
A. Isolate the valve, vent process pressure and shut off all
electrical, signal air and supply air lines to the valve.
B. If equipped with a handwheel, it must be rotated to the
disengaged position.
C. Remove air supply piping to upper diaphragm case (84).
D. Remove covers (44 & 46).
E. Remove retaining clips (40) and remove pivot pin (39) to free
rod end bearing (94).
F. Loosen and remove all short cap screws (86) and hex nuts
(87). Mark upper case (84) and lower case (91) so that they
can be reassembled with the same orientation of air inlet and
mounting bolts.
G. Loosen each tension nut (95) approximately three full turns.
CAUTION
CAUTION
WARNING
DANGER
The upper diaphragm case (84) should separate
from the lower case (91) as the tension nuts are
loosened the three turns. If it does not, before
proceeding, separate the upper diaphragm case
(84) by tapping it around the circumference or in-
serting a screwdriver between the upper (84) and
lower case (91). If the cases still do not separate,
check that the actuator stem is not hung up inside
the bracket. DO NOT PROCEED WITH DISAS-
SEMBLY UNLESS THE CASES CAN SEPARATE
FREELY.
H. Continue loosening the tension nuts (95) evenly approximately
three turns each time ensuring that the upper diaphragm
case (84) and diaphragm (85) continue to separate.
Note: Continue Step H until the tension nuts (95) can be
easily removed by hand indicating the upper diaphragm
case (84) is not under spring tension.
I. Remove tension bolts (95) and upper diaphragm case (84).
J. Remove diaphragm (85) and diaphragm plate subassembly
from the actuator.
K. Remove retaining clip (78). Remove clevis pivot pin (79).
Inspect for damage and/or wear in clevis (80), lever (32),
clevis pins (79, 39) and rod end bearings (94). Replace if
necessary.
L. Clean all mating/sealing surfaces which will come in contact
with the diaphragm (85).
3.4.2.2 Reassembly
A. Connect rod end bearing (94) to diaphragm plate clevis (80)
by installing clevis pin (79) and retaining clips (78). Ensure
that the stem is installed such that the wrench flats are at the
end furthest from the diaphragm plate (88).
B. Ensure spring (90) and spring guide (98) are properly aligned
in lower case (91) and install the diaphragm plate and stem
subassembly. Replace diaphragm (85).
C. Align marks for correct orientation of upper case (84) and
lower case (91). Replace upper diaphragm case (84) and
install long cap screws (95), warning plate (97) and tension
nuts (96).
Note: These bolts must be spaced as equally as possible.
D. Take up tension nuts (96) evenly and sufficiently to allow
installation of short cap screws (86) and hex nuts (87).
E. Tighten tension nuts (96) and then tighten all hex nuts (87)
using a criss-cross tightening pattern.
Note: Nuts should be tightened only enough to seal the
diaphragm between the upper and lower case. Do not
overtighten.
F. Connect rod end bearing (94) to lever (32) by installing pivot
pin (39), and retaining clips (40).
G. Replace covers (44 & 46) and reconnect signal and supply
lines.
H. Place back in service and, if so equipped, rotate handwheel
to desired position.
3.5 Handwheel Subassembly
3.5.1 Model 33 sizes B & C only. Refer to section 3.5.2 for size
AC actuators.
3.5.1.1 Disassembly
CAUTION
CAUTION
WARNING
DANGER
Turn handwheel to disengage position before proceed-
ing with handwheel maintenance. Refer to Figures 13
through 16.
A. Remove retaining clips (63) and push out pin (66). Make
sure bushing (65) remains in the arm (64).
B. Remove the pivot pins (72) and remove handwheel
subassembly.
C. Remove handwheel shaft subassembly (55) retaining ring
(59) and unscrew nut (58). Remove needle bearing and race
(60). Clean and check needle bearing and race for signs of
wear. Replace if necessary.
D. Remove handwheel pivot (56) and thrust washer (61). Check
washer and replace if necessary. Check 0-ring (57) and
replace if necessary.
E. Clean ACME threads on handwheel (54) and shaft S/A (55)
and grease with Molykote G.
3.5.1.2 Reassembly (Figure 5)
A. Install thrust washer (61) and 0-ring (57). Apply silicone
lubricant sparingly to 0-ring.

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 13
Copyright 2020 Baker Hughes Company. All rights reserved.
B. Slide handwheel pivot (56) onto the handwheel subassembly.
Lubricate and install bearing race, needle bearing and outer
race.
C. Install nut (58) bevel side toward bearing race and screw
down tight. DO NOT OVERTIGHTEN. Replace retaining ring
(59). Correct assembly should have the nut (58) touching the
retaining ring (47).
CAUTION
CAUTION
WARNING
DANGER
Do not rotate handwheel prior to replacing pivot pins
(72) into the handwheel mounting bracket (62).
D. Install assembly into handwheel mounting bracket (62) and
replace pivot pins (72).
E. Connect handwheel shaft S/A (55) to handwheel (54) and to
the lever arm with pin (66) and replace clip (63).
3.5.2 Handwheel Subassembly – Model 33, Size AC. Refer to
section 3.5.1 for sizes B & C. Refer to Figures 13, 14 & 16.
3.5.2.1 Disassembly
CAUTION
CAUTION
WARNING
DANGER
Turn handwheel to disengage position before proceed-
ing with handwheel maintenance.
A. Remove retaining ring (54-7) and shaft washer (54-4).
B. Rotate Handwheel (54) counterclockwise until it is removed
from housing (31).
C. Clean ACME threads on handwheel shaft (54-3) and grease
with Molykote G.
3.5.2.2 Reassembly. Refer to Figures 13, 14 & 16.
A. Thread handwheel assembly (54) into housing (31) until it
extends through the housing and the groove in the stem (54-
3) is visible.
B. Place shaft washer (54-4) over stem (54-3).
C. Install retaining ring (54-7) into groove on stem (54-3).
3.6 Diaphragm Replacement
CAUTION
CAUTION
WARNING
DANGER
Spring diaphragm actuators contain large forces due
to their preloaded powerful springs. Failure to careful-
ly follow this procedure can result in personal injury!.
3.6.1 Model 33 sizes B & C only. Refer to section
3.6.1.1 Disassembly
A. Relieve actuator pressure and disconnect air supply. Do not
remove pivot pin (39).
B. Verify that all three tension bolts (95) and nuts (96) are in
place and secure.
C. Remove nuts (87) and cap screws (86) following a criss-
cross pattern.
D. Verify actuator stem (77) and rod end (94) are securely
connected to lever (32) through pivot pin (39) and that
retaining clips (40) are in place.
E. Loosen tension nuts (96) evenly in sequence. Do not exceed
three turns of any one nut (96) before proceeding to the next
one. Do not vary the sequence.
CAUTION
CAUTION
WARNING
DANGER
Failure to evenly unload tension nuts may result
in personal injury!
F. Continue loosening tension nuts (96) until further loosening
of the tension nuts (96) is no longer accompanied by an
increase in separation of the upper diaphragm case (84)
from the lower case (91). At this point the tension nuts (96),
bolts (95) and warning plates (97) can be removed.
G. Remove the upper diaphragm case (84) and diaphragm (85).
CAUTION
CAUTION
WARNING
DANGER
The diaphragm plate (88) remains under spring
load.
3.6.1.2 Reassembly
A. Ensure that sealing surfaces of diaphragm cases (84) and
(91) are clean and free of any dirt or debris. Check that
there are no foreign objects that may interfere with travel or
damage diaphragm.
B. Install diaphragm (85) on diaphragm plate (88). Align bolt
holes with holes in lower case (91).
C. Install three tension bolts (95) with warning plates (97) into
upper case (84). Ensure bolts are equally spaced at 120° to
each other.
D. Mount upper case (84) onto diaphragm plate (88) such that
the tension bolts pass through holes in diaphragm (85) and
lower case (91).
E. Install tension nuts (96) finger tight onto tension bolts (95).
F. Tighten each tension nut (96) three turns before proceeding
to the next to ensure actuator spring (90) is evenly loaded.
Continue until the diaphragm is firmly sandwiched between
the flanges of the upper and lower diaphragm cases. Torque
tighten tension bolts to 50 in. lbs.
G. Install cap screws (86) and nuts (87). Torque tighten to 50
in. lbs. in a criss-cross pattern. As this will tend to unload the
tension bolts (96) repeat torque tightening of tension bolts
and cap screws (86) to 50 in. lbs. in a criss-cross pattern until
joint is evenly loaded to specified torque values.
H. Reconnect air supply.
I. Stroke actuator to confirm operation. 3.6.2 Model 33 size AC
actuators only. Refer to section 3.6.1 for sizes B & C.
3.6.2 for size AC actuators.
3.6.2.1 Disassembly
A. Relieve actuator pressure and disconnect air supply. Do not
remove pivot pin (39).
B. Verify that all three tension bolts (95) and nuts (96) are in
place and secure.

14 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.
C. Remove nuts (87) and cap screws (86) following a criss-
cross pattern.
D. Verify actuator stem (15) and rod end (94) are securely
connected to lever (32) through pivot pin (39) and that
retaining clips (40) are in place.
E. Loosen tension nuts (96) evenly in sequence. Do not exceed
three turns of any one nut (96) before proceeding to the next
one. Do not vary the sequence.
CAUTION
CAUTION
WARNING
DANGER
Failure to evenly unload tension nuts may result
in personal injury!
F. Continue loosening tension nuts (96) until further loosening
of the tension nuts (96) is no longer accompanied by an
increase in separation of the upper diaphragm case (84)
from the lower case (91). At this point the tension nuts (96),
bolts (95) and warning plates (97) can be removed.
G. Remove the upper diaphragm case (84) and diaphragm (85).
The diaphragm plate (88) remains under spring load.
3.6.2.2 Reassembly
A. Ensure that sealing surfaces of diaphragm cases (84) and
(91) are clean and free of any dirt or debris. Check that
there are no foreign objects that may interfere with travel or
damage diaphragm.
B. Install diaphragm (85) on diaphragm plate (88). Align bolt
holes with holes in lower case (91).
C. Install three tension bolts (95) with warning plates (97) into
upper case (84). Ensure bolts are equally spaced around the
circumference of the case.
D. Mount upper case (84) onto diaphragm plate (88) such that
the tension bolts pass through holes in diaphragm (85) and
lower case (91).
E. Install tension nuts (96) finger tight onto tension bolts (95).
F. Tighten each tension nut (86) three turns before proceeding
to the next to ensure actuator spring (90) is evenly loaded.
Continue until the diaphragm is firmly sandwiched between
the flanges of the upper and lower diaphragm cases. Torque
tighten tension bolts to 50 in. lbs.
G. Install cap screws (86) and nuts (87). Torque tighten to 50
in. lbs. in a criss-cross pattern. As this will tend to unload the
tension bolts (95) repeat torque tightening of tension bolts
and cap screws (86) to 50 in. lbs. in a criss-cross pattern until
joint is evenly loaded to specified torque values.
H. Reconnect air supply.
I. Stroke actuator to confirm operation.

Masoneilan 36005 Series Control Ball Valves Instruction Manual | 15
Copyright 2020 Baker Hughes Company. All rights reserved.

16 | Baker Hughes Copyright 2020 Baker Hughes Company. All rights reserved.