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21

FORM NO. L-20063-AG-1216

Nexen Group, Inc.

560 Oak Grove Parkway

Vadnais Heights, MN  55127

800.843.7445

Fax: 651.286.1099

www.nexengroup.com

ISO 9001 Certified

  WARRANTY

Warranties

Nexen warrants that the Products will (a) be free from any defects in material or workmanship for a period of 12 months 

from the date of shipment, and (b) will meet and perform in accordance with the specifications in any engineering drawing 

specifically for the Product that is in Nexen’s current product catalogue, or that is accessible at the Nexen website, or that is 

attached to this Quotation and that specifically refers to this Quotation by its number, subject in all cases to any limitations 

and exclusions set out in the drawing. NEXEN MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL 

IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND 

FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. This warranty applies only if: (a) the Product has 

been installed, used and maintained in accordance with any applicable Nexen installation or maintenance manual for the 

Product; (b) the alleged defect is not attributable to normal wear and tear; (c) the Product has not been altered, misused or 

used for purposes other than those for which it was intended; and (d) Buyer has given written notice of the alleged defect 

to Nexen, and delivered the allegedly defective Product to Nexen, within one year of the date of shipment.

Exclusive Remedy

The exclusive remedy for the Buyer for any breach of any warranties provided in connection with this agreement will be, 

at the election of Nexen: (a) repair or replacement with new, serviceably used, or reconditioned parts or products; or (b) 

issuance of credit in the amount of the purchase price paid to Nexen by the Buyer for the Products.

Agent's Authority

Buyer agrees that no agent, employee or representative of Nexen has authority to bind Nexen to any affirmation, representation, 

or warranty concerning the Products other than those warranties expressly set forth herein.

Limitation on Nexen’s Liability

TO THE EXTENT PERMITTED BY LAW NEXEN SHALL HAVE NO LIABILITY TO BUYER OR ANY OTHER PERSON 

FOR INCIDENTAL DAMAGES, SPECIAL DAMAGES, CONSEQUENTIAL DAMAGES OR OTHER DAMAGES OF ANY 

KIND OR NATURE WHATSOEVER, WHETHER ARISING OUT OF BREACH OF WARRANTY OR OTHER BREACH 

OF CONTRACT, NEGLIGENCE OR OTHER TORT, OR OTHERWISE, EVEN IF NEXEN SHALL HAVE BEEN ADVISED 

OF THE POSSIBILITY OR LIKELIHOOD OF SUCH POTENTIAL LOSS OR DAMAGE. For all of the purposes hereof, the 

term "consequential damages" shall include lost profits, penalties, delay damages, liquidated damages or other damages 

and liabilities which Buyer shall be obligated to pay or which Buyer may incur based upon, related to or arising out of its 

contracts with its customers or other third parties. In no event shall Nexen be liable for any amount of damages in excess of 

amounts paid by Buyer for Products or services as to which a breach of contract has been determined to exist. The parties 

expressly agree that the price for the Products and the services was determined in consideration of the limitation on damages 

set forth herein and such limitation has been specifically bargained for and constitutes an agreed allocation of risk which 

shall survive the determination of any court of competent jurisdiction that any remedy herein fails of its essential purpose.

Inspection

Buyer shall inspect all shipments of Products upon arrival and shall notify Nexen in writing, of any shortages or other failures 

to conform to these terms and conditions which are reasonably discoverable upon arrival without opening any carton or 

box in which the Products are contained. Such notice shall be sent within 14 days following arrival. All notifications shall be 

accompanied by packing slips, inspection reports and other documents necessary to support Buyer's claims. In addition 

to the foregoing obligations, in the event that Buyer receives Products that Buyer did not order, Buyer shall return the 

erroneously shipped Products to Nexen within thirty (30) days of the date of the invoice for such Products; Nexen will pay 

reasonable freight charges for the timely return of the erroneously shipped Products, and issue a credit to Buyer for the 

returned Products at the price Buyer paid for them, including any shipping expenses that Nexen charged Buyer. All shortages, 

overages and nonconformities not reported to Nexen as required by this section will be deemed waived.

Limitation on Actions

No action, regardless of form, arising out of any transaction to which these terms and conditions are applicable may be 

brought by the Buyer more than one year after the cause of action has accrued.

Summary of Contents for 933500

Page 1: ...1 FORM NO L 20063 AG 1216 BD Caliper Brake STANDARD AIR CHAMP PRODUCTS ...

Page 2: ...ice 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 ...

Page 3: ...ion 5 Installation 6 Friction Facing Clearance Adjustment 8 Air Connections General 10 Lubrication 10 Operational Modes 11 Option Kit for 3 4 Wide Disc Installation 14 Maintenance 14 Two Port Actuator Function 15 Manual Release Procedures for Spring Actuators 16 Parts Replacement 17 Parts List 20 Warranty 21 ...

Page 4: ...ers and devices can cause injury Wear safety glasses and take the appropriate safety precautions CAUTION The temperature limits for the product are 4 5 100 degree Celsius 40 220 degree F CAUTION Surface temperature may exceed safe handling limits during operation Do not touch CAUTION This product has possible pinch points Care should be taken when interacting with this product CAUTION This product...

Page 5: ...ystem and your willingness to keep all components in proper operating condition Pay particular attention to all NOTES CAUTIONS and WARNINGS to avoid the risk of personal injury or property damage It is important to understand that these NOTES CAUTIONS and WARNINGS are not exhaustive Nexen cannot possibly know or evaluate all conceivable methods in which service may be performed or of the possible ...

Page 6: ... Ventilated Discs Table 2 Pull up Bolt Torques For Ventilated Discs S E U Q R O T G N I N E T H G I T D E D N E M M O C E R DIAMETER PART NUMBER D Q BUSHING TORQUE m m 5 0 3 n i 2 1 1 0 2 4 3 9 F S m N 5 0 4 b l t f 0 3 m m 6 5 3 n i 4 1 2 0 2 4 3 9 E m N 1 8 b l t f 0 6 m m 6 0 4 n i 6 1 3 0 2 4 3 9 E m N 1 8 b l t f 0 6 m m 7 5 4 n i 8 1 4 0 2 4 3 9 J m N 5 2 8 1 b l t f 3 3 1 m m 8 0 5 n i 0 2 ...

Page 7: ... Retainer Plate Item 6 5 Press the Pivot Pins out Item 7 6 Slide Arms Item 2 out of Main Frame Item 1 7 Position Arms and Actuator as desired 8 Reverse the above procedure to reassemble the BD Caliper Brake 9 Tighten the Cap Screws Item 24 to 7 9 Nm 5 7 ft lb torque Re Engagement NOTE On spring engaged BD Caliper Brakes apply 80 100 psi hold off air pressure and Refer to pages 16 17 for manual dis...

Page 8: ...product that is being installed Table 3 T C U D O R P R E B M U N N O I T C I R F H T D I W C S I D T C U D O R P R E B M U N N O I T C I R F H T D I W C S I D 0 0 5 3 3 9 n i 0 5 0 m m 3 1 4 9 5 3 3 9 n i 0 0 1 m m 5 2 1 0 5 3 3 9 n i 0 5 0 m m 3 1 5 9 5 3 3 9 n i 0 0 1 m m 5 2 2 0 5 3 3 9 n i 5 7 0 m m 9 1 0 0 6 3 3 9 n i 0 5 0 m m 3 1 3 0 5 3 3 9 n i 0 5 0 m m 3 1 1 0 6 3 3 9 n i 0 5 0 m m 3 1 ...

Page 9: ...ngs Item 4 and the Friction Disc See Figure 5 5 Turn the Adjustment Screw in until the spacer can just be pulled out 6 Tighten the Spanner Nut Item 12 to 13 6 20 3 Nm 10 15 ft lb torque Note Ensureproperhold offpressurehasbeenmaintained This will remove any tension on the tap bolt for easier release 7 Manual Re Engagement Refer to pages 16 17 for manual disengagement and re engagement 8 Remove hol...

Page 10: ... hose or hose couplings Do not use rigid pipe or tubing when connecting directly to the brake Care must also be taken to prevent an unshielded air hose from rubbing on metal surfaces or edges this will cause rapid deterioration of the hose WARNING LUBRICATION FIGURE 9 Piston Rod Item 10 Bearing Item 15 Bearing Item 14 Adjustment Screw Item 8 All pivot points on the BD Caliper Brake use self lubric...

Page 11: ...ged torque to the disc See Figure 11 OPERATIONAL MODES Filter Regulator Lubricator Air Supply Power Source 3 Way Valve N C Quick Exhaust Valve 3 Way Manual Valve Figure 10 optional Lubricator 3 Way Valve N C Quick Exhaust Valve Power Source Regulator Filter Air Supply 3 Way Manual Valve Connected to Spring Engaged Port Figure 11 Air Engaged Port Service Service Plug Spring Engaged Port Obsolete Th...

Page 12: ...DE 3 Way Manual Valve Air Supply Filter Regulator Lubricator Power Source Power Source Regulator Quick Exhaust Valve used as a Shuttle Valve Set at a reduced pressure for less than full rated torque Quick Exhaust Valve connected to Spring Engaged Port Figure 13 Air Engaged Port Service Service Plug Spring Engaged Port Obsolete Three Port Actuator Spring Brake Service Two Port Actuator Spring Brake...

Page 13: ... Facings Item 4 Bearings Item 14 and 15 and the machine shaft are up to twice the normal design loads Connect to Air Engaged Port Brake is cycled with Air Engaged Mode Connected to Spring Engaged Port Quick Exhaust Power source wired to Power On circuit Regulator Figure 14 Lubricator Regulator Filter Air Supply Set at minimum Hold Off pressure 75 psi 5 17 bar 3 Way Manual Valve Power Source ON 75 ...

Page 14: ... 17 for proper operation Not applicable for the 60 psi canister OPTION KIT FOR 3 4 WIDE DISC INSTALLATION INCLUDED WITH BRAKE 1 Remove Return Spring Item 17 and Shoes Item 3 by removing Shoe Pins Item 16 See Figure 15 2 Loosen the Spanner Nut Item 12 and turn the Adjustment Screw Item 8 counterclockwise until it is fully disengaged See Figure 15 3 Open the Arms Item 2 at the actuator end and repla...

Page 15: ... Mode In a power off situation with both control valves de energized the air in SPRING BRAKE chamber exhausts and the spring pushes the PUSH ROD to engage the brake Using either the spring or the air activated diaphragm with a 24 inch disc produces full brake torque of 19 000 in lbs Reducing the torque in either engagement mode is accomplished by reducing air pressure Spring engaged torque is redu...

Page 16: ...when hold off air pressure is not available DO NOT USE THE TAP BOLT TO ADJUST THE FRICTION FACING GAP Use a 9 16 inch socket wrench to turn the tap bolt counterclockwise until the brake is released Approximately 40 turns or 0 83 For easier turning of the tap bolt apply 80 100 psi hold off air pressure to remove the tension After loosening the tap bolt exhaust the air from the spring chamber DO NOT...

Page 17: ...ten the Machine Screws to 12 15 Nm 8 12 ft lb torque PARTS REPLACEMENT FRICTION FACINGS 60 PSI Actuator Only Disengagement A Cap Screw and Washer are shipped loose with the actuatorassemblyandareusedtomechanicallyrelease the spring in the event of an actuator failure or machine service when hold off air pressure is not available DO NOT USE THE CAP SCREW TO ADJUST THE FRICTION FACING GAP Use a 15 1...

Page 18: ...ssthedamagedBearings Item15 outoftheShoes Item 3 14 Press new Bearings Item 15 into Shoes Item 3 15 Slide the Arms Item 2 back into the Main Frame Item 1 Refer to Figure 19 1 Loosen the Spanner Nut Item 12 2 RemovetheAdjustmentScrew Item8 andtheSpanner Nut Item 12 from the Arm Item 2 3 Remove the Actuator Item 11 from the other Arm Item 2 4 Remove the Return Springs Item 17 and Spring Retainers It...

Page 19: ...oper seating Tighten nut to 20 25 ft lbs torque 7 Screw the actuator back into the arm and tighten the spanner nut to 10 14 ft lbs 8 Apply air pressure to the service chamber and check for air leakage Refer to pages 16 17 for Manual Disengagement and Re Engagement instructions Refer to page 8 FRICTION FACING CLEARANCE ADJUSTMENT for Air Spring Actuator re engagement and facing clearance adjustment...

Page 20: ...i t c i r F 4 8 1 4 7 w e r c S e n i h c a M 4 5 r e n i a t e R g n i r p S 2 9 1 w e r c S p a C 4 6 e t a l P r e n i a t e R n i P t o v i P 1 0 2 r e h s a W k c o L 4 7 n i P t o v i P 2 1 2 2 n w o h S t o N g u l P e p i P 8 w e r c S t n e m t s u j d A 1 2 2 n w o h S t o N r e t p a d A 9 g n i R g n i n i a t e R w e r c S t n e m t s u j d A 1 3 2 n w o h S t o N y l b m e s s A e s ...

Page 21: ...ATURE WHATSOEVER WHETHER ARISING OUT OF BREACH OF WARRANTY OR OTHER BREACH OF CONTRACT NEGLIGENCE OR OTHER TORT OR OTHERWISE EVEN IF NEXEN SHALL HAVE BEEN ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH POTENTIAL LOSS OR DAMAGE For all of the purposes hereof the term consequential damages shall include lost profits penalties delay damages liquidated damages or other damages and liabilities which ...

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