Schneider Electric AM-731, AM-732, AM-733, AM-734 Installation Instructions
Application
AM-734
AM-731
AM-732
AM-733
The AM-731, AM-732, AM-733 and AM-734 linkage
kits are designed to provide mounting of Schneider
Electric DuraDrive™ linear actuators directly to twoway and three-way valves. This combination will
provide linear travel to valves from 1-1/4" to 2" VB7XXX and 2-1/2" to 4" VB-9XXX.
Features
• Direct mounting of linear actuators to valves
AM-731, AM-732,
AM-733, AM-734
Linkage Kits
Schneider Electric DuraDrive
Linear Series Actuators
General Instructions
Printed in U.S.A. 6-10 Copyright 2010 Schneider Electric All Rights Reserved. F-27203-3
Table-1 Specifications.
Part Number
Used With
Actuator
Used With Valves Included With Actuator
AM-731 MX51-720x Current 1-1/4" to 2" VB-7XXX Yes
AM-732 MX61-720x Current 2-1/4" to 4" VB-9XXX Yes
AM-733 MX61-720x
AM-734 MX61-720x
Obsolete 1-1/2" and 2" VB-9XXX after date code
9404
Obsolete 1-1/2" and 2" VB-9XXX before date code
9404
No
No
INSTALLATION
Inspection Inspect the package for damage. If damaged, notify the appropriate carrier immediately. If
undamaged, open the package and inspect the device for obvious damage. Return
damaged products.
Requirements • Pliers for removing and inserting connecting pin
• Installer must be a qualified, experienced technician
• TOOL-37, 1-1/2" - 3" adjustable spanner wrench for valve mounting nut
• 5/16" and 3/4" open-end wrench for stem jam nuts
• 1/8" Allen wrench
• Size 10 IP Torx Plus bit
• 5/8", 1-1/2", and 1-3/8" open end wrenches
Linear Actuator
Mounting Bracket
Stem Extension
Hex Mounting Nut
Valve Body
(small)
a
Manual Override
L
L
Rack
b
Lock Washer
Jam Nut
a
R
Set Screw
b
b
Valve Stem
b
Connecting Pin
a
a Not included with linear actuator.
b AM-731 parts
b
Figure-1 AM-731 Kit with MX51-720X Actuator, Exploded View.
2 Copyright 2010 Schneider Electric All Rights Reserved. F-27203-3
.
*Not included with linear actuator.
Valve Body*
Hex Mounting Nut*
Stem Extension
Mounting Bracket
Rack
Linear Actuator
Manual Override
Connecting Pin
Jam Nut
Valve Stem*
1
7
74
2
7
6
74
6
6
6
R
L
L
Lock Washer
4
9
Set Screw
8
4
4
5
Label
3
4
Figure-2 Typical Assembly and Installation of AM-731 Linkage Kit with MX51 Series Actuator to 1-1/4" to 2"
VB-7XXX Series Valve Bodies, Stem-Up Closed or Open, 2-Way and 3-Way Valves.
Installation: AM-731 linkage kit with MX51-720X Series Actuator to 1-1/4" to
2
" VB-7XXX Series Valve Bodies, Stem-Up Closed or Open, 2-Way and 3-Way
A. Install the actuator onto the valve. Set up the assembly according to the numbered steps
in Figure-2.
1. Locate the jam nut that came packaged with the kit.
2. Screw the jam nut onto the valve stem all the way as far as it will go. You may need to use a 5/16" (TOOL-20-1) open-end wrench. At least 1/2" of the valve stem should extend above the nut.
3. Place lock washer over valve stem.
4. Thread the stem extension onto the valve stem, making contact with the lock washer and jam nut.
5. Ensure 15o or 1-1/2 turns of manual override for actuator preload (Figure-12).
6. Orient the actuator mounting bracket on the valve and tighten the hex mounting nut securely against the bracket using TOOL-37. Raise the valve stem to the full up position.
7. Rotate stem extension until the through hole lines up with the through hole of actuator rack. Insert connecting pin to secure stem extension and tighten jam nut against stem extension using 5/16" (TOOL-20-1) open end wrench.
8. Affix open/closed label to the indicator in the appropriate position.
9. Insert set screw packaged with actuator into the most accessible side. Tighten with a size 10 IP Torx Plus bit to 20-25 lb-in (2.3-2.8 N-m).
B. Apply power to the actuator and check the system operation for heating or cooling output
in response to the control signal.
F-27203-3 Copyright 2010 Schneider Electric All Rights Reserved. 3
Valve Body
Lock Washer
Stem Extension
(large)
Mounting Bracket
Rack
Linear Actuator
a Not included with linear actuator.
b AM-732 parts - included with actuator.
Manual Override
Connecting Pin
Jam Nut
Valve Stem
R
L
L
a
a
b
b
b
b
Lock Washer
b
Spanner Nut
a
Label
Figure-3 AM-732 with MX61-720X Actuator, Exploded View.
4 Copyright 2010 Schneider Electric All Rights Reserved. F-27203-3
Linear Actuator
7
4
3
6
Rack
Label
Manual Override
L
R
L
4
Connecting Pin
4
32
1
Valve Stem*
43
63
6
4
*Not included with linear actuator.
5
Mounting Bracket
Spanner Nut*
5
Valve Body*
5
3
Lock Washer
5
64
Stem Extension
Lock Washer
32
Jam Nut
Figure-4 Typical Assembly and Installation of AM-732 Linkage Kit with MX61 Series Actuator to 2-1/2" to 4"
VB-9XXX Series Valve Bodies, Stem-Up Closed, 2-Way and 3-Way.
Installation: AM-732 linkage kit to MX61-720X Series Actuator to 2-1/2" to 4" VB-9XXX Series Valve Bodies, Stem-Up Closed, 2-Way and 3-Way
A. Install the actuator onto the valve. Set up the assembly according to the numbered steps
in Figure-4.
1. Locate the jam nut that came packaged with the kit.
2. Screw the jam nut onto the valve stem all the way as far as it will go (you may need to use a 3/4" open-end wrench). At least 1/2" of the valve stem should extend above the nut. Place the lock washer over the valve stem.
3. Thread the stem extension onto the valve stem, making contact with the lock washer and jam nut.
4. Ensure 15o or 1-1/2 turns of manual override for actuator preload (Figure-12).
5. Orient the actuator mounting bracket on the valve, place lock washer over valve stem and tighten the mounting nut securely against the bracket using 1-1/2" - 3" adjustable spanner wrench. Raise the valve stem to the full up position.
6. Rotate stem extension until the through hole lines up with the through hole of actuator rack. Insert connecting pin to secure stem extension and tighten jam nut against stem extension using 3/4” open end wrench.
7. Affix open/close label to the indicator in the appropriate position.
B. Apply power to the actuator and check the system operation for heating or cooling output
in response to the control signal.
F-27203-3 Copyright 2010 Schneider Electric All Rights Reserved. 5
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