Dresser Masoneilan V-Max 36005 Series Instruction Manual

Putting You In Control
Instruction Manual
EM36005
07/10
36005 Series V-Max
High Capacity Control Ball Valve
®
Table of Contents Page
1.0 INTRODuCTION
NUMBERING SYSTEM ......................................................................................2
2.0 INSTALLATION
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
3.1 BRACKET SUBASSEMBLY ...............................................................................7
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 .......................................................................13
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
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
Helpful Hints
1. Have spare parts on hand before starting.
2. Read the instructions carefully.
3. Study the figures carefully and identify each part.
4. Use the right tools for the job.
5. Be careful not to score the shaft, ball and guiding surfaces.
6. Ensure all lubricants, gaskets and packing are compatible with the service.
7. Don’t overtighten nuts or bolts.
8. Clean valve parts thoroughly before reassembly.
9. Work safely.
Copyright
Masoneilan® is a registered trademark of Dresser, Inc. All information contained herein is believed to be accurate at the time of publication and is subject to change without notice.
Copyright 2010 by Dresser, Inc. All rights reserved.
Safety Information
Based on general field failure data and product design analysis, a useful life period of 25 years or longer can be expected for the 36005 series V-Ported control ball valves. 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.
Important - Please Read Before Installation
Masoneilan 36005 Series 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.
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.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
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 Masoneilan’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 36005 Series control valves, and do not apply for other valves outside of this product line.
Warranty
Items sold by Dresser® 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 Dresser recommended usages. Dresser, Inc. reserves the right to discontinue manufacture of any product or change product materials, design or specifications without notice.
This instruction manual applies to the Masoneilan 36005 Series control valves.
The Control Valve MUST BE:
• Installed, put into service and maintained by qualified and competent professionals who have undergone suitable training.
• 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.
Indicates a potentially hazardous situation which, if not avoided, could result in serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.
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.
• 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.
• All surrounding pipe lines must be thoroughly flushed to ensure all entrained debris has been removed from the system.
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
1
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.
Masoneilan 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
Numbering System
personnel in the operation, maintenance and application of our control valves and instruments. Arrangements for these services can be made through your Masoneilan Representative or District Office. When performing maintenance use only Masoneilan replacement parts. Parts are obtainable through your local Masoneilan Representative or District Office. When ordering parts always include MODEL and SERIAL NuMBER of the unit being repaired.
1st
DIgIT
Actuator Type
33 Spring Diaphragm.
Air to extend action only.
2nd
DIgIT
Body
Series
36
1st
DIgIT
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)
2nd
DIgIT
6
Actuator Mounting
(See guide on page 4)
3rd
DIgIT
4th
DIgIT
Seal Type
1 MN-7 Seal
Ring
2
316 SS Seal Ring
Heavy Duty
3
Metal Seal Ring
5th
DIgIT
5
Design
Series
5
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
Figure 1
2
V-Max Valves
Actuator Model 33, Size AC
3 X 3 6 X 0 5
Actuator Position in Relation to Valve Body Numbering System: 1 to 8
Actuator Model 33, Sizes B and C
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
3
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
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. 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).
D. The linkage of the 36005 V-Max valve has been properly
adjusted at the factory and requires no further adjustment.
E. 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.
Do not exceed loading pressure specified 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.
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.
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.
Before proceeding determine valve action (air to open/
air to close), refer to the appropriate figure (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)
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
4
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).
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.
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.
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 (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.
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).
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).
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
5
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).
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.
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.
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.
Before proceeding determine valve action (air to open/
air to close), refer to the appropriate figure (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.
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
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
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).
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).
6
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).
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).
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).
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.
Instructions EM36005 – 07/10 36005 Series V-Max® Control Ball Valve
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
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).
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
7
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