Nexen AIR CHAMP FMCBE 70-14 User manual

FORM NO. L-20365-B-0714
1
FMCBE Model 70-14
Metric Face Mounted Enclosed
Clutch Brake With/Without Integral
Valve
AIR CHAMP PRODUCTS
FORM NO. L-20365-B-0714

2
FORM NO. L-20365-B-0714
Copyright 2014 Nexen Group, Inc.
Nexen Group, Inc.
560 Oak Grove Parkway
Vadnais Heights, Minnesota 55127
ISO 9001 Certified
This document is the original, non-translated, version.
Conformity Declaration: In accordance with Appendix II B of CE Machinery Directive (2006/42/EC):
A Declaration of Incorporation of Partly Completed Machinery evaluation for the applicable EU directives was
carried out for this product in accordance with the Machinery Directive. The declaration of incorporation is set
out in writing in a separate document and can be requested if required.
This machinery is incomplete and must not be put into service until the machinery into which it is to be
incorporated has been declared in conformity with the applicable provisions of the Directive.
Read this manual carefully before installation and operation.
Follow Nexen’s instructions and integrate this unit into your
system with care. This unit should be installed, operated and
maintained by qualified personnel ONLY. Improper installation
can damage your system, cause injury or death. Comply with
all applicable codes.
DANGER
In accordance with Nexen’s established policy of constant product improvement, the specifications contained in this manual
are subject to change without notice. Technical data listed in this manual are based on the latest information available at
the time of printing and are also subject to change without notice.
Technical Support: 800-843-7445
[phone]
www.nexengroup.com

FORM NO. L-20365-B-0714
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Table of Contents
General Specifications -------------------------------------------------------------------------------------------------------------------------- 4
General Safety Precautions ------------------------------------------------------------------------------------------------------------------- 4
Installation ------------------------------------------------------------------------------------------------------------------------------------------------- 5
Lubrication ------------------------------------------------------------------------------------------------------------------------------------------- 6
Air Connections ----------------------------------------------------------------------------------------------------------------------------------- 7
Air and Electrical Connections (Integral Valve Style) --------------------------------------------------------------------------------------- 8
FMCBE Model 70-14 Assembly (NPT Style) ----------------------------------------------------------------------------------------------- 9
FMCBE Assembly ----------------------------------------------------------------------------------------------------------------------------------- 10
Troubleshooting --------------------------------------------------------------------------------------------------------------------------------------- 12
Replacement Parts ----------------------------------------------------------------------------------------------------------------------------- 13
Warranty -------------------------------------------------------------------------------------------------------------------------------------------- 15

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FORM NO. L-20365-B-0714
GENERAL SPECIFICATIONS
GENERAL SAFETY PRECAUTIONS
CAUTION
Use lifting aids and proper lifting
techniques when installing, removing,
or placing this product in service.
CAUTION
Watch for sharp features when
interacting with this product. The parts
have complex shapes and machined
edges.
Specifications
Max Static Torque Clutch: 10 Nm (7.4 ft-lbs)
Brake: 10 Nm (7.4 ft-lbs)
Actuation Pressure .1 - 5.5 bar (1 - 80 psi)
Service Temperature 4.5 - 104 C (40 - 220 F)
Approximate Weight Up to 6.5 kg (14.5 lbs)
CAUTION
Use appropriate guarding for moving
components. Failure to guard could
result in serious bodily injury.
WARNING
Ensure proper guarding of the product is
used. Nexen recommends the machine builder
design guarding in compliance with OSHA 29
CFR 1910 “Occupational Safety and Health
Hazards”.
WARNING
This product is capable of emitting
a spark if misused, therefore it is not
recommended for use in any explosive
environment.
CAUTION
The temperature limits for the product
are 4.5-104 degree Celsius (40-220
degree F).
CAUTION
The temperature limits for the
product are 4.5-104 degree
Celsius (40-220 degree F).
CAUTION
Use appropriate guarding for moving
components. Failure to guard could
result in serious bodily injury.

FORM NO. L-20365-B-0714
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MOUNTED ON THE SHAFT END OF A MOTOR
Refer to Figure 1.
1. Remove the Socket Head Cap Screws (Item 13) and
the Housing (Item 1).
2. Insert the Customer Supplied Key into the motor shaft
keyway.
3. Slide the Housing (Item 1) onto the motor shaft, then
secure it to the motor with the Socket Head Cap
Screws (Item 29).
4. Align the Set Screw (Item 26) in the Drive Disc (not
shown) with the hole in the Housing (Item 1).
5. Tighten the Set Screw (Item 26) and install the Plug
(Item 27). Align the FMCBE Model 70-14 air inlet ports
to the 6 o’clock down position to allow condensation
to drain out of the ports.
MOUNTED BETWEEN A GEAR REDUCER AND A
MOTOR
Refer to Figure 2.
1. Remove the Socket Head Cap Screws (Item 13) and
the Housing (Item 1).
2. Insert the Customer Supplied Key into the motor shaft
keyway.
3. Slide the Housing (Item 1) onto the motor shaft, then
secure it to the motor with the Socket Head Cap
Screws (Item 29).
4. Align the hole in the Housing (Item 1) with the Set
Screw (Item 26) in the Drive Disc.
5. Tighten the Set Screw (Item 26) and install the Plug
(Item 27). See “NOTICE”.
6. Apply a drop of Loctite® 242 to the threads of the four
Socket Head Cap Screws (Item 13) and secure the
two halves of the FMCBE Model 70-14 together.
7. Tighten the four Socket Head Cap Screws (Item 13)
to 6.1-7.5 Nm (54-66 in/lbs).
FIGURE 1
Item 26
Item 27
Item 1
Customer
Supplied
Key
Motor
Item 29
Item 13
FIGURE 2
Item 26
Item 27
Item 1
Motor
Item 29
Item 13
Customer
Supplied
Fasteners
Gear
Reducer
Customer
Supplied
Key
Item 25
INSTALLATION
6. Apply a drop of Loctite® 242 to the threads of the four
Socket Head Cap Screws (Item 13) and secure the
two halves of the FMCBE Model 70-14 (Metric Face
Mounted Enclosed Clutch Brake) together.
7. Tighten the four Socket Head Cap Screws (Item 13)
to 6.1-7.5 Nm (54-66 in/lbs).
8. Insert the Key (Item 25) into the Stub Shaft (not shown).
9. Slide the Stub Shaft into the Gear Reducer.
10. Secure the FMCBE Model 70-14 to the Gear Reducer
with the customer supplied fasteners.

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FORM NO. L-20365-B-0714
NOTE
Nexen pneumatically actuated devices require clean, pressure regulated air for maximum performance and life.
All seals in Nexen Pneumatically operated devices are lubricated for life and do not require additional lubrication.
However, some customers prefer to use an air line lubricator, which injects oil into the pressurized air, forcing an
oil mist into the air chamber. This is acceptable, but care must be taken to ensure once an air mist lubrication
system is used, it is continually used over the life of the product as the oil mist may wash free the factory
installed lubrication.
Locate the lubricator above and within ten feet of the product, and use low viscosity oil such as SAE-10.
Synthetic lubricants are not recommended.
Nexen product's bearings are shielded and pre-lubricated, and require no further lubrication.
LUBRICATOR DRIP RATE SETTINGS
1. Close and disconnect the air line from the unit.
2. Turn the Lubricator Adjustment Knob counterclockwise
three complete turns.
3. Open the air line.
LUBRICATION
CAUTION
These settings are for Nexen supplied
lubricators. If you are not using a Nexen
lubricator, calibration must follow the
manufacturer's suggested procedure.
4. Close the air line to the unit when a drop of oil forms
in the Lubricator Sight Gage.
5. Connect the air line to the unit.
6. Turn the Lubricator Adjustment Knob clockwise until
closed.
7. Turn the Lubricator Adjustment Knob counterclockwise
one-third turn.
8. Open the air line to the unit.

FORM NO. L-20365-B-0714
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3/2 (3 Way) 4/2 (4 Way)
5/2 (4 Way) 5/2 (5 Way)
AIR CONNECTIONS
NOTE
For quick response, Nexen recommends a quick exhaust
valve and short air lines between the Control Valves and
the product. Align the air inlet ports to a down position
to allow condensation to drain out of the air chambers of
the product.
CAUTION
Low air pressure will cause slippage and
overheating. Excessive air pressure will
cause abrupt starts and stops, reducing
product life.
All Nexen pneumatically actuated devices require clean
and dry air, which meet or exceeds ISO 8573.1:2001
Class 4.4.3 quality.
Air Pressure (Gage) Limits
6.9 Bar (100 PSI) Absolute Max.
0 Bar (0 PSI) Absolute Min.
The following are common air supply schemes used with
this product. These are examples and not an all-inclusive
list. All air circuits to be used with this product must be
designed following EN983 guidelines.

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FORM NO. L-20365-B-0714
Item 40 Item 13
Item 36
FIGURE 3
Refer to Table 1 and Figures 3 and 4.
1. Connect the air supply to the inlet port.
2. Place the gasket on the Solenoid Valve (Item 36).
NOTE: If you do not install the gasket, you may not get
a proper seal. An improper seal can cause corrosion
in a moist environment.
3. Plug the DIN Connector (Item 40) into the Solenoid
Valve (Item 36).
4. Tighten the pan head screw included on the DIN
Connector (Item 40).
5. Connect the lead wires of the DIN Connector (Item 40)
to an appropriate power source (See Table 1). Observe
polarity when you connect any device marked “+” and
“-”.
Lead Wire Cable:
Brown wire = positive
White wire = common
Green wire = ground
NOTE: The 115 VDC rectified lead wire contains a full
bridge rectifier and surge suppressor which converts
AC power to rectified AC power and provides circuit
protection.
* A Nexen rectifier lead wire is supplied for the 115 VDC
Ta ble 1 - Spool Specifications
Current
Voltage ResistancePower
and can be used for AC (50/60 Hz) or DC operation.
Standard Coil:
115 VDC
*
2.5 Watts 5500 Ohms .021 Amps
Optional Coils 
(Contact Nexen)
24 VDC 0.6 Watts 1100 Ohms .027 Amps
Solenoid
Part #
4919
4961
DIN Connector; 9mm Centers
FIGURE 4
12
Gasket
Solenoid
(Item 36)
DIN
Connector
(Item 40)
Pan Head Screw
Dynamco
DANGER
Hazardous voltages. Can cause severe
injury or death. Disconnect AC power
prior to connecting wires. Do not splice
wires. Conform to all applicable safety
regulations and codes.
AIR AND ELECTRICAL CONNECTIONS (INTEGRAL VALVE STYLE)

FORM NO. L-20365-B-0714
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FIGURE 5
Housing
Plug
Friction Facing
Splined Disc
Assembly
Cylinder Air
Chamber
O-Ring
Seals
Air to
Brake
Air to
Clutch
Piston
Bearing
Key
Stub
Shaft
Drive
Disc
FMCBE MODEL 70-14 ASSEMBLY (NPT STYLE)

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FORM NO. L-20365-B-0714
Refer to Figures 6, 7, 8, 9 and 10.
1. Remove the four Socket Head Cap Screws (Item 13)
and slide the Housing (Item 1) Bearing (Item 2), and
the Drive Disc (Item 4) out of the FMCBE.
2. Remove the Retaining Ring (Item 6).
3. Press the Drive Disc (Item 4) out of the Bearing (Item
2) and the Housing (Item 1).
4. Remove the Retaining Ring (Item 3) from the Housing
(Item 1).
5. Support the Housing (Item 1) and press the old Bearing
(Item 2) out of the Housing.
NOTE: Removing the bearing damages it. Do not reuse
the bearing.
6. Clean the bearing bore of the Housing (Item 1) with
fresh safety solvent. Make sure that all of the old
Loctite® residue is removed.
7. Apply an adequate amount of Loctite® 680 to evenly
coat the outer race of the new Bearing (Item 2).
8. Carefully align the outer race of the new Bearing (Item
2) with the bore of the Housing (Item 1).
9. Support the Housing (Item 1), press on the outer race
of the new Bearing and press the new Bearing (Item
2) into the Housing.
10. Reinstall the Retaining Ring (Item 3).
11. Support the inner race of the new Bearing (Item 2) and
press the Drive Disc (Item 4) into the new Bearing and
Housing (Item 1).
12. Reinstall the Retaining Ring (Item 6).
13. Slide the Friction Facing Splined Disc Assembly (Item
10), the Cylinder (Item 12), and the Piston (Item 16)
out of the Air Chamber (Item 20).
14. Remove the Retaining Ring (Item 6) and press the
Friction Facing/Splined Disc Assembly (Item 10) out
of the Cylinder (Item 12) and the Piston (Item 16).
15. Slide the Piston (Item 16) out of the Cylinder (Item 12),
then remove the old O-Ring Seals (Items 14 and 15)
from the Piston and the Cylinder.
16. Remove the Retaining Ring (Item 3) from the Piston
(Item 16), then press the old Bearing (Item 2) out of
the Piston.
17. Clean the bearing bore of the Piston (Item 16) with fresh
safety solvent. Make sure that all of the old Loctite®
residue is removed.
FIGURE 6
6
1
2
3
4
13
FIGURE 7
10
20
12
16
(Continued...)
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
18. Apply an adequate amount of Loctite® 680 to evenly
coat the outer race of the new Bearing (Item 2).
19. Support the Piston (Item 16), press on the outer race
of the new Bearing (Item 2), press the new Bearing
(Item 2) into the Piston.
20. Reinstall the Retaining Ring (Item 3).
21. Clean the O-Ring grooves and contact surfaces of the
Piston (Item 16) and Cylinder (Item 12) with fresh safety
solvent. Lubricate the O-Ring grooves and contact
surfaces with fresh O-Ring lubricant.
FMCBE ASSEMBLY