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KOBELT MANUFACTURING CO. LTD               MNL-5027-A.docx (rev B)                     

 

 

10

 

2.3

 

  C

ALIPER BRAKES

 

2.3.1

 

Mechanical 

Perform the following steps to properly install a caliper brake: 

1.

 

Lower the brake onto the brake pedestal and center over the mounting holes. 

2.

 

Using feeler gauges to ensure that the brake air gap is equal on both sides of the disc. 

 

Ensure the caliper is centered. The balancing link will be subjected to 
excessive stresses that will damage it. 

3.

 

Position the brake so that the outer radius of the brake shoe is in full contact with the 
Disc.  Do not move the brake  too close as enough radial distance must be provided  to 
allow for disc expansion without causing interference between the outer circumference 
of the disc and the inner caliper frame. 

4.

 

Manually apply the brake onto the disc.  The brake shoes will naturally align with the disc. 

5.

 

Probe under the brake base with feeler gauges to determine the shimming requirement. 

6.

 

Manually release the brake again and lift the brake up approximately two inches.  

7.

 

Insert the  shims determined  from  step  6.    Use ANSI  shims that straddle  the mounting 
bolts. 

8.

 

Insert the mounting bolts from underneath the pedestal using appropriate flat washers.  
The nut must be on top of the brake foot.  The mounting bolts must be of SAE grade 5 or 
better.  It is recommended to use a thread locking product such as Loctite® to ensure a 
vibration resistant and secure joint. 

9.

 

Lower the brake down and tighten the mounting bolts to the recommended preload. 

 

2.3.2

 

Piping 

The piping to the brakes must be adequately sized to ensure rapid response times in all weather 
conditions.  The piping must be selected to safely withstand the pressures required to operate 
the brakes.  Secure the piping against vibration with pipe clamps per the schedule in the table 
below.  

Table 3: Pipe Clamp Table 

PIPE CLAMP TABLE 

PIPE SCHEDULE 

3/8”

-

½” tube

 

[DN6] 

¼” –

 

1/2” 

pipe 

½”

-

3/4” tube

 

[DN8-DN15] 

¾

 pipe 

1”

-

1.25” tube

 

[DN20] 

1

 pipe 

 1

.50” 

tube 

[DN25] 

CLAMP SPACING 

3 ft [914 mm] 

4 ft [1219 mm] 

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. 

The connections to the brake actuators must be made by hoses of suitable rating to 
accommodate the movement of the brake levers.  

Содержание 5027-A

Страница 1: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 1 5027 A DISK BRAKE AIR APPLIED VERSION Owner s Operation Installation Maintenance Manual...

Страница 2: ...2 Brake Discs 8 2 3 Caliper brakes 10 2 3 1 Mechanical 10 2 3 2 Piping 10 3 Commissioning 12 3 1 Air Gap 12 3 2 Function Test 12 3 3 Burnishing 12 3 4 Torque Test 13 4 Operation 14 4 1 Functional Requ...

Страница 3: ...MANUFACTURING CO LTD MNL 5027 A docx rev B 3 5 3 2 Stroke Adjustment 17 5 3 3 Brake Linings 18 5 4 Recommended Spares 20 6 Warranty 21 7 Appendix A Technical Drawings 22 8 Appendix B Parts List Drawi...

Страница 4: ...instructions concerning a service or operation that may be hazardous if performed incorrectly or carelessly The associated risk levels are stated below This symbol indicates an imminently hazardous s...

Страница 5: ...cations in this manual If these guidelines are not followed and damage occurs the warranty will be voided 1 2 3 Hazards Equipment Starts Automatically Brake systems frequently are controlled remotely...

Страница 6: ...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 hydraul...

Страница 7: ...reference only They are based on properly bedded and burnished linings acting on a rotor at 20o C and manufactured to required specifications Technical data and specifications are also available from...

Страница 8: ...e seals Remove the plugs prior to connection to the piping Brake discs are shipped with a light rust inhibitor applied to the surfaces Remove the rust inhibitor using solvent and a cloth prior to inst...

Страница 9: ...1016 0 043 1 1 0 056 1 4 0 069 1 8 0 082 2 1 45 1143 0 049 1 2 0 063 1 5 0 078 2 0 0 092 2 3 To reduce the size of the mounting bolt clearance hole it is recommended to offset the bolt circle on the...

Страница 10: ...from step 6 Use ANSI shims that straddle the mounting bolts 8 Insert the mounting bolts from underneath the pedestal using appropriate flat washers The nut must be on top of the brake foot The mountin...

Страница 11: ...inger tight Use brass pipe fittings for making the connection as steel fittings are too heavy and may split the port Do not over tighten the fitting in the actuator port as damage to the actuator may...

Страница 12: ...nsure that the brakes are operational 3 3 BURNISHING Burnishing is required in order to achieve rated brake torque The process of burnishing removes minor contaminants from the rubbing surfaces and im...

Страница 13: ...burnish one brake at a time Three important points to consider when burnishing are i The temperature of the disc must be closely monitored Excessive heat will damage the friction linings ii The durati...

Страница 14: ...alcohol to prevent freezing of the air system 4 2 SERVICE LIMITS 4 2 1 Disc Temperature The Kobelt brake lining achieves maximum friction at 300o F Over 300o F the brake begins to fade or experience d...

Страница 15: ...greater than the values listed in the table below the discs must be balanced Under no circumstances must the running speed exceed the value given in the right hand column Table 4 Maximum Disc Speeds...

Страница 16: ...mption When the running clearance has reached 0 04 1 mm the brake must be adjusted back to 0 01 0 25 mm per shoe Refer to section 5 3 2 For pressure applied brakes maintain the proper running clearanc...

Страница 17: ...llowances in the table below as a guideline for when a disc must be replaced Table 5 Brake Disc Minimum Thickness Allowances Brake Disc Minimum Thickness Disc Series Original Thickness in mm Minimum T...

Страница 18: ...inward to allow for the extra thickness of a new lining 5 3 3 Brake Linings The linings must be replaced before the rivets make contact with the disc Remove worn linings from the shoe by drilling out...

Страница 19: ...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 When reinstalling the shoes and pivot blocks reinstall the shoe pin first to...

Страница 20: ...rformed by a factory authorized service representative Please contact the nearest Kobelt authorized distributor for assistance The table below itemizes which kit spare part numbers change with the var...

Страница 21: ...cant Applicant must immediately contact Kobelt and describe the issue in writing by letter fax email or other electronic conveyance Kobelt will then assess the cause of the defect and determine warran...

Страница 22: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 22 7 APPENDIX A TECHNICAL DRAWINGS...

Страница 23: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 23...

Страница 24: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 24 8 APPENDIX B PARTS LIST DRAWINGS 5027 A...

Страница 25: ...0011 BALANCING LINK NO 1 5024 CALIPER 1 12 5 5027 0023 TIE ROD 5026 5027 CALIPER 1 13 5 1022 0117 NUT HEX 3 4 10 UNC Gr 18 8 1 14 2 5027 0022 SADDLE PIN 5027 CALIPER 1 15 4 1039 0470 PIN HAIRPIN COTT...

Страница 26: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 26 5027 AW...

Страница 27: ...NCING LINK NO 1 5024 CALIPER 1 11 5 5027 0023 TIE ROD 5026 5027 CALIPER 1 12 10 1022 0117 NUT HEX 3 4 10 UNC Gr 18 8 1 13 2 5027 0022 SADDLE PIN 5027 CALIPER 1 14 3 1039 0470 PIN HAIRPIN COTTER 1 4 X...

Страница 28: ...KOBELT MANUFACTURING CO LTD MNL 5027 A docx rev B 28 6130 Actuator...

Страница 29: ...v B 29 5027 LS ITEM QTY PART NUMBER DESCRIPTION 1 1 5027 0005 SHOE 5027 CALIPER 2 1 5027 0007 LINING 5 8 K5 5027 BRAKE CALIPER 3 29 1033 1007 RIVET 1 4 X 7 16 10 7 BRASS Heiko Epkens Digitally signed...

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