Related Manuals for Kobelt 5028-A
Summary of Contents for Kobelt 5028-A
- Page 1 5028-A DISK BRAKE AIR APPLIED VERSION Owner’s Operation, Installation & Maintenance Manual KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
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Page 2: Table Of Contents
Preventative Maintenance ..................16 Inspection ........................16 5.2.1 Pad Wear ........................ 16 5.2.2 Seals ........................16 5.2.3 Pin Wear ......................... 17 5.2.4 Brake Disc ....................... 17 Service ......................... 17 5.3.1 Lubrication ......................17 KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) - Page 3 5.3.2 Stroke Adjustment ....................17 5.3.3 Brake Linings ......................18 Recommended Spares....................19 Warranty ........................20 Appendix A: Technical Drawings ................... 21 Appendix B: Parts List Drawings ................... 23 KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
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Page 4: Introduction
NTRODUCTION ONTACT NFORMATION Kobelt Manufacturing Co LTD. 8238 129TH Street Surrey, British Columbia Canada, V3W 0A6 Sales Tel: 604-572-3935 Fax: 604-590-8313 Email: sales@kobelt.com www.kobelt.com ebsite: For further instructions, please contact our distributors or visit our website. 1.2 S AFETY NFORMATION 1.2.1 Safety Alerts... -
Page 5: Safety Instructions
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
20 C and manufactured to required specifications. Technical data and specifications are also available from our datasheet posted on www.kobelt.com the technical drawings in Appendix A. 1.5 M ODEL KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) -
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 mnl5028-A.docx (rev A) - 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 mnl5028-A.docx (rev A)
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Page 10: Caliper Brakes
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. The connections to the brake actuators must be made by hoses of suitable rating to accommodate the movement of the brake levers. KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) - Page 11 C] the air must be dried to a dew point of -50 F [-44 Failure to adequately dry the compressed air supply may result in the brake valve freezing and rendering the brakes inoperable in sub-zero weather conditions. KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
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Page 12: Commissioning
Extreme care must be taken not to overheat the disc during the process. On water cooled discs it may be necessary to limit the flow of cooling water in order to achieve the necessary disc temperature for effective burnishing. KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) -
Page 13: 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 mnl5028-A.docx (rev A) -
Page 14: Operation
It is necessary to size air compressors and storage tanks to provide sufficient air for the intended duty of the brakes. Except as noted below, Kobelt air applied caliper brakes utilize diaphragm type actuators and therefore do not require lubrication. -
Page 15: Disc Speed
Table 4: Maximum Disc Speeds Part Nominal OD Max. Speed Number inch 4” x 10-1/2” Series Standard Balanced 4-10.5-42.5 42.5 1080 1300 4-10.5-48.5 48.5 1232 1100 4-10.5-54.5 54.5 1384 1000 4-10.5-60.5 60.5 1537 KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) -
Page 16: Maintenance
The actuator seals should be inspected on a periodic basis. For air applied brakes apply air pressure to the actuators and listen for any hissing sound that would indicate a torn or ruptured diaphragm. KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) -
Page 17: Pin Wear
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 18: Brake Linings
When re-installing the shoes into the caliper assembly, be sure to re-engage the balancing links “A”. If there is insufficient room radially to remove the shoe, then screws ‘C’ must be removed. KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) -
Page 19: Recommended Spares
‘C’. Tighten screws ‘C’ to 37 ft-lbs [50.2 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 20: 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 21: Appendix A: Technical Drawings
A: T PPENDIX ECHNICAL RAWINGS KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) - Page 22 KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
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Page 23: Appendix B: Parts List Drawings
B: P PPENDIX ARTS RAWINGS 5028-A KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) - Page 24 COTTER PIN, 1/8" X 1", SS 5028-0012 BALANCING LINK NO. 1, 5028 CALIPER 1023-0216 FLAT WASHER, 1/4, TYPE B, NARROW 1002-1010 SHCS, 1/4-20 UNC X 5/8 LG, 18-8 SS 1001-1008 SCREW, HEX HD, 1/4-20 UNC X 1/2, SS KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
- Page 25 5028-SAW KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
- Page 26 COTTER PIN, 1/8" X 1", SS 5028-0012 BALANCING LINK NO. 1, 5028 CALIPER 1023-0216 FLAT WASHER, 1/4, TYPE B, NARROW 1002-1010 SHCS, 1/4-20 UNC X 5/8 LG, 18-8 SS 1001-1008 SCREW, HEX HD, 1/4-20 UNC X 1/2, SS KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
- Page 27 6130 Actuator KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A)
- Page 28 5028-LS KOBELT MANUFACTURING CO. LTD mnl5028-A.docx (rev A) Heiko Epkens Digitally signed by Heiko Epkens Date: 2020.05.01 16:24:55 -07'00'...