Dixon Bayco Operating and maintenance manual

090121 Rev 6
1
Maintenance & Operating
Instructions
For
DIXON
VR4040CS-AL SERIES
VAPOR COUPLER
USA:
Dixon Bayco USA
Chestertown, Maryland
Phone: [phone]
Fax: [phone]
Toll Free: 800-355-1991
E-mail: [e-mail]
dixonbayco.com
Canada:
Dixon Group Canada Limited
Mississauga, Ontario
Phone: [phone]
Fax: [phone]
Toll Free: 866-436-1125
E-mail: [e-mail]
canada.dixonvalve.com
Mexico:
Dixva, S. de R.L. de C.V.
Monterrey, N.L
Phone: [phone]-DIXON (34966)
Fax: [phone]
E-mail: [e-mail]
dixonvalve.com
Europe:
Dixon Group Europe Ltd
Preston, England
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
dixoneurope.co.uk
Asia Pacific:
Dixon (Asia Pacific) Pty Ltd
Wingfield, South Australia
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
australia.dixonvalve.com
For Sales & Service Contact

2 090121 Rev 6
ITEM
DESCRIPTION
PART NO
Qty of Components per Unit
VR4040CS-AL
VR4040CS-ALL
VR4040CS-MNPT
VR4040CS-MNPTL
VR4040CSRK1
VR4040CSRK2
VR4040CSRK3
1
BODY
341818
1
1
-
-
-
-
-
341870
1
1
-
-
-
2
CAGE
341819
1
1
1
1
-
-
1
3
POPPET
341820
1
1
1
1
-
-
1
4
GASKET
112262
1
1
1
1
1
-
-
5
SPRING
112263
1
1
1
1
-
-
1
6
MACHINE SCREW
112506
3
3
3
3
3
-
3
7
BUSHING
390146
1
1
1
1
-
-
1
8
O-RING #334
110691
1
1
1
1
1
-
1
9
PADDLE ARM
40215SS
2
2
2
2
-
2
-
10
CAM ARM PIN
40218SS
2
2
2
2
-
2
-
11
BUTTON
391860
1
-
1
-
-
-
1
391866
-
1
-
1
-
-
-
12
POPPET STOP
391868
1
1
1
1
-
-
1
13
SCREW
112416
1
1
1
1
-
-
1
14
LOCK WASHER
112507
3
3
3
3
3
-
3
*Use Relevant Repair Kit
Repair kit VR4040CSRK1: Seal repair kit
Repair kit VR4040CSRK2: Cam arm repair kit
Repair kit VR4040CSRK3: Internal parts kit

3 090121 Rev 6
These instructions and recommendations are provided to ensure proper operation and long service
life of Dixon VR4040CS-AL. Parts are identified by the item numbers on the assembly drawing and
parts list.
DIASSEMBLING AND ASSEMBLING INSTRUCTIONS FOR “DIXON”VR4040CS-AL SERIES
VAPOR COUPLERS
1. Hold the cage (2) and undo the machine screws (6) & lock washers (14).
2. Remove the cage (2) and visually inspect the cage (2) and the button (11). If the cage (2) and
the button (11) are worn or damaged, replace with new ones.
Note! The button (11) is tightened onto the probe of the cage (2) through the screw (13) in the
factory.
3. If the gasket (4) needs to be replaced, install the new gasket (4). Make sure that the gasket (4)
sits in the groove properly.
4. Push the poppet (3) into the coupler and hold. Remove the O-Ring (8) from the poppet (3).
Note! After the O-Ring (8) is removed, the poppet stop (12) will hold the poppet (3) in the coupler
body. If the poppet (3) is worn or damaged, remove the coupler from the hose or the mating part.
5. Remove the poppet stop (12) from the hose shank end using a wrench for 1” hex.

4 090121 Rev 6
6. Remove the poppet (3) and the spring (5).
7. Remove the bushing (7) and replace with a new bushing (7) if needed.
8. Install the spring (5) and the poppet (3) from the front end into the body (1). After the poppet (3)
end passes the bushing (7), thread the poppet stop (12) from the coupler back onto the poppet
(3) end and hand tighten the poppet stop (12).
9. Hold the cage (2) and use the wrench for 1” hex to tighten the poppet stop (12).
10.Push the poppet (3) into the coupler and hold. Install the new O-Ring (8) and make sure that
the O-Ring (8) sits in the poppet (3) groove properly.
11.Install the cage (2) to the poppet (3) using the machine screws (6) and lock washers (14).
12.Push the cage (2) into the body (1) to make sure the cage (2) and the poppet (3) can move
smoothly.
DIXON WARRANTY:
For Warranty Information, please refer to the inside back cover of the latest Dixon
Catalogue.