Related Manuals for Kobelt 5023-SA
Summary of Contents for Kobelt 5023-SA
- Page 1 5023-SA DISK BRAKE SPRING / AIR VERSION Owner’s Operation, Installation & Maintenance Manual KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
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Page 2: Table Of Contents
4.2.3 Pressure ........................16 4.2.4 Disc speed ....................... 16 Maintenance ....................... 17 Preventative Maintenance ..................17 Inspection ........................17 5.2.1 Pad Wear ........................ 17 5.2.2 Seals ........................17 5.2.3 Actuator Test ......................17 KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) - Page 3 5.3.2 Stroke Adjustment ....................19 5.3.3 Spring Actuators...................... 20 5.3.4 Brake Linings ......................20 Recommended Spares....................21 Warranty ........................22 Appendix A: Technical Drawings ................... 23 Appendix B: Parts List Drawings ................... 24 KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
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Page 4: Introduction
• Do not carry out any modifications to the product. • Only use authentic Kobelt spare parts. • Observe all local regulations, directives and laws during the installation of this product. • All installation, commissioning and maintenance work must only be conducted by qualified personnel. -
Page 5: Hazards
Brakes contain numerous pinch points which can cause serious injury. Ensure all power sources are locked out prior to performing work. High Pressure Fluids: Kobelt lever brakes use high pressure hydraulics. Ensure all pressure is exhausted and the pressure source locked out prior to performing work. Hot Surfaces: Disc brakes are capable of making the surfaces of the brake disc dangerously hot when burnishing or during braking events. -
Page 6: Product Description
The diagram below shows a typical Kobelt caliper brake with all the major components identified. All of the Kobelt caliper brakes can be fitted with either air applied, hydraulic applied, spring applied with air released or spring applied with hydraulic released actuators depending on the required service. -
Page 7: Model Code Key
[35 kg] 1) Requires a minimum 4.34 in [110 mm] wide face Technical data and specifications are also available from our datasheet posted on www.kobelt.com the technical drawings in Appendix 1.5 M ODEL KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 8: Installation
International tolerance class. Allowable run out is proportional disc O.D. Parking brakes and emergency brakes with stopping times of 10 seconds or less are considered light duty. Ventilated discs are exempted from this requirement KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) - Page 9 The cooling air pumped through the disc must be exhausted away from the outer diameter of the disc to allow fresh, cool air to enter the inner vent opening of the disc. KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
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Page 10: Caliper Brakes
5 ft [1524 mm] 6.5 ft [1981 mm] All piping must be cleaned prior to connection to the actuators. Welded carbon steel piping must be pickled to remove the scale produced by welding. KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 11: Instrumentation
2.3.3 Instrumentation Kobelt caliper disc brakes may be equipped with sensors and switches, such as the 6230-MSKIT. The connection to the instruments must be made by cable or flexible conduit. Follow the governing electrical code for wiring practices. Use only hardware approved for the zone that the brake is installed in. -
Page 12: Commissioning
3.2 F LUSHING Kobelt spring applied, air released disc brakes may be used in low pressure hydraulic applications. Before subjecting the brake system to full hydraulic pressure, the brake lines must be flushed to an ISO 4406 cleanliness rating of 19/17/14. -
Page 13: Function Test
Depending on the configuration of the brake system it may be necessary to reduce the burnishing torque by; a) Partially releasing the brake with fluid pressure to a level that the drive can tolerate, or KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 14: Torque Test
Before putting equipment into service, confirm that full rated braking torque has been achieved through load testing or a torque test against the drive motors. If full brake torque has not been achieved, continue burnishing. KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 15: Operation
In applications where the brakes cycle infrequently with significant changes in ambient temperature it may be necessary to provide a thermal relief to protect the actuators from over pressurization due to thermal expansion. KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 16: Control
4.2 S ERVICE IMITS 4.2.1 Disc Temperature The Kobelt brake lining achieves maximum friction at 300 F. Over 300 F the brake begins to fade or experience diminishing friction. The maximum operating temperature of the brake linings is 700 F [371 C]. -
Page 17: Maintenance
Occasionally it may be necessary to test the actuator springs as a means of trouble shooting. The easiest method is to measure the hold-off and release pressure of the actuator. The release pressure is defined as the minimum pressure required to fully retract the actuator whereas KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 18: Pin Wear
Brake Disc Minimum Thickness Disc Series Original Thickness Minimum Thickness in [mm] in [mm] 2-4-XX 2.00 [50.8] 1.90 [48.5] When re-machining the disc surface, equal amounts must be taken off of each face. KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 19: Service
This is to prevent premature seal wear and reduce seal friction. All Kobelt calipers, during assembly, are pre-greased on the shoe pin and saddle pin with a Lithium based NLGI 2 grease. These pins must be re-greased no less than once annually. -
Page 20: Spring Actuators
‘C’ must be removed. BALANCING LINK ADJUSTMENT To adjust; 1. Loosen screws ‘B’, 2. Apply brakes onto the disc, 3. Ensure link ‘A’ has no tension on it. Adjust if necessary. 4. Tighten screws ‘B’ KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) -
Page 21: Recommended Spares
‘C’. Tighten screws ‘C’ to 200 in-lbs [ 22.7 Nm]. ECOMMENDED PARES The spare parts kept on hand will depend on the severity of the service. As a minimum Kobelt recommends keeping the following parts for each brake in service: 1. One Lined set of brake shoes 2. -
Page 22: Warranty
If any part is found to be defective, Kobelt will replace said part FOB the Kobelt factory provided that any such defective part is returned by the Buyer with freight and applicable forwarding charges prepaid by the Buyer. -
Page 23: Appendix A: Technical Drawings
A: T PPENDIX ECHNICAL RAWINGS KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) - Page 24 KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
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Page 25: Appendix B: Parts List Drawings
B: P PPENDIX ARTS RAWINGS 5023-SA KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) - Page 26 COTTER PIN; 1/8 DIA X 1 LG. 18-8 5021-0012 BALANCE LINK NO. 2 5021 CALIPER 1023-0108 WASHER FLAT #10 TYPE A SS 1002-0808 SCREW, SKT HD CAP, #10 UNC x 1/2 LG, SS KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
- Page 27 5023-SAW KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
- Page 28 COTTER PIN; 1/8 DIA X 1 LG. 18-8 5021-0012 BALANCE LINK NO. 2 5021 CALIPER 1023-0108 WASHER FLAT #10 TYPE A SS 1002-0808 SCREW, SKT HD CAP, #10 UNC x 1/2 LG, SS KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
- Page 29 6230-80 Actuator KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
- Page 30 SCREW CAP SKT HD 1/4UNC X3/4 GR 18-8 1002-1116 SCREW SCKT HD 5/16-18 UNC X 1 SS 1022-0217 NUT JAM 3/4-10 UNC SS 1022-0110 NUT HEX 1/4-20 UNC 18-8 6230-RK-W SEAL KIT, 6230 ACTUATOR KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B)
- Page 31 ITEM QTY. PART NUMBER DESCRIPTION 5021-0005 SHOE 5021 CALIPER 5021-0147 LINING 5021 1/2 in NON-SPARKING 1033-1007 RIVET, 1/4 X 7/16 (10-7), BRASS KOBELT MANUFACTURING CO. LTD mnl5023-SA.docx (rev B) Heiko Digitally signed by Heiko Epkens Epkens Date: 2020.12.01 11:39:53 -08'00'...