SAF SBS 2220 H0 Repair Instructions
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SAF SBS 2220 H0 Repair Instructions

Compressed air disc brake
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Repair Instructions
Compressed Air Disc Brake
SAF SBS 2220 H0
SAF SBS 1918 H0
XL-SA30000RM-en-DE Rev A • 02.2016
Translation of the original repair instructions

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Summary of Contents for SAF SBS 2220 H0

  • Page 1 Repair Instructions Compressed Air Disc Brake SAF SBS 2220 H0 SAF SBS 1918 H0 XL-SA30000RM-en-DE Rev A • 02.2016 Translation of the original repair instructions...
  • Page 2 The information contained in this manual neither represents ensured characteristics of the product nor a guarantee. SAF-HOLLAND GmbH reserves the right to make changes in the interest of technical progress without prior notice.

  • Page 3: Table Of Contents

    Tightening torques ......... 38 4.3.8 Checking the actuation interface ..18 6.2.1 General ..........38 4.3.9 Checking the guide pin bellows ..19 6.2.2 SAF SBS 2220/SBS 1918 H0 .... 38 XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 4 SAF special tool for SBS 2220 H0 ..38 8 Fault finding ..........39 General fault finding instructions ... 39 Inspection intervals ....... 39 Spare parts and repair kit list ...... 40 XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 5: Introduction

    Chapter "9. Components list" lists and shows what spare part components are available for the SAF SBS 2220 / SBS 1918 H0 compressed-air disc brake. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 6: Functional Description

    Marking for special user tips and other particularly sure that they are always read and adhered to before useful and important information for efficient work working with the product. and economical use. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 7: Setting The Control System/Valves

    Caution! If the venting holes remain closed, the brake cham- ber and disc brake may not operate correctly. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 8: Cleaning

    ● The vehicle manufacturer's safety precautions ments covered in this service manual. must be followed when working on the vehicle! ● Local safety precautions must be observed! XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 9: Removing The Wheel

    "8. Fault finding" on what action to take. 2. Remove the reset shaft protective plug (item A), see ► Fig. 8 Fig. 6 - Securing with the extraction tool 3. Release the parking brake XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 10 Torx 55 will suddenly stop rotating. If in doubt, rotate the Torx 55 anti-clockwise 180 degrees and then press the brake pedal again to check. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 11: Final Procedure

    Fig. 11 - Correctly fitting the protective plug Note: The SAF guarantee of competence shall be made void in the event of improper fitting of the reset shaft protective plug and resulting damage. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 12 Work performed must always be completed with a function test (► chapter 3.3) and a test drive in order to ensure that the brakes are functioning correctly. ► chapter 3.3 XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 13: Inspection Procedures

    – – – – ► chapter 4.3.9 Thrust plate bellows – – – – – ► chapter 4.3.10 Slide function – – – – – ► chapter 4.3.11 XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 14: Inspections

    Note: Step 1 in this procedure only indicates the brake pad wear of the outer brake pad! For a full examination, complete all steps. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 15: General Brake Pad Clearance Check

    5. The normal clearance is between 0.7 mm and 1.1 mm. If the measurement is outside of the nor- mal running condition then continue with chapter „8.2 Inspection intervals“. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 16: Checking The Brake Disc

    1. Read and follow „3.2 Initial procedure“ prior to in- specting the protective plugs and protective caps. 2. Remove dirt from surfaces if necessary. 3. Check for signs of excessive heat exposure, dis- colouration, debris, etc. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 17: Checking The Thrust Plate Guide Pins

    If the housing seal (B) is removed, it will void the warranty and compromise the disc brake! The nut (D) must not be adjusted, see ► Fig. 21. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 18: Checking The Actuation Interface

    ► Fig. 23. 3. Release the parking brake, see ► chapter 3.2.1. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 19: Checking The Guide Pin Bellows

    For instructions on how to replace the bellows, read and follow chapter „4.3.11 Checking 13. Check that the external seal flange (B) is correctly the slide function“. seated, intact and undamaged. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 20: 4.3.10 Checking The Thrust Plate Bellows

    4. If the bellows are damaged then they must be replaced. For instructions on how to replace the bellows, read and follow chapter „5.4 Replacing the adjustment screw bellows“. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 21: 4.3.11 Checking The Slide Function

    3. If the movement is restricted in any way, the cause 2. Clean the measuring point and place the dial must be determined, see chapter „8.2 Inspection gauge on the support (arrow). intervals“. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 22 Fig. 35 - Brake calliper bearing The floating bearing consists of a soft composite. If a metallic sound is produced by the floating bearing, it must be replaced. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 23: Replacement Procedure

    Doing so could damage the inter- nal components of the mechanism! The maxi- SBS 1918 H0 SBS 2220 H0 mum torque is 20 Nm. Fig. 38 - Removing the brake pad components XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 24: Installing The Brake Pads

    2. Check that the contact surfaces on the carrier, brake calliper and thrust plate are free from dirt and corrosion. Clean the thrust plate as required. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 25: Final Procedure

    5.3.1 Initial procedure Read and follow chapter prior to removing the spring brake chambers. Fig. 43 - Mating surfaces of the brake chamber and brake calliper XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 26: Installing The Brake Chamber

    Take care when using chemicals and/or cleaning Caution! tools (e.g. knives, brushes, etc.). This to avoid damage or displacement of hoses, seals and other Do not mix up the hoses! components. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 27: Final Procedure

    Read and follow the chapters below prior to removing the adjustment screw bellows. 1. „3.2 Initial procedure“ 2. „5.2.2 Removing the brake pads“ 3. „5.3.2 Removing the brake chamber“ XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 28: Cleaning

    Clean the thrust plate, the adjustment screw and the adjustment screw bellows mating surfaces in the brake calliper. Ensure that the components are free from dirt, dust, debris, moisture and corrosion. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 29: Final Procedure

    3. „5.3.3 Installing the brake chamber“ 4. „3.3 Function test“, to ensure that the disc brake is working correctly. Fig. 53 - Pressing in the thrust plate bellows 5. „3.4 Final procedure“ XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 30: Replacing The Slide Function Assembly

    Fig. 57 - Removing the guide pin bolts 3. Using a long drive 14 mm Allen wrench, remove both bolts (B), see ► Fig. 57. The bolts must not to be re-used. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 31 (H), see ► Fig. 61. Fig. 59 - Removing the guide pins 5. By hand, push out the fixed bearing (C) and float- ing bearing (D), see ► Fig. 59. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 32: Cleaning

    Fig. 63 - Removing the composite bushing 10. The composite bushing (H) on the floating bearing Caution! should be removed by hand. Where indicated, use an SAF special tool only. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 33 ► Fig. 66. 3. Once fitted correctly, rotate the threaded tool clockwise, which will pull into position the two bearing bushings (F) and the spacer (G). XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 34 11. Use a 14 mm Allen wrench to screw in and tighten the bolts (B). The tightening torque is defined in chapter „6.2.2 SAF SBS 2220/SBS 1918 H0“. Fig. 70 - Inserting the guide pins XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 35: Final Procedure

    7. Remove the reset shaft protective plug (A). angle. This may cause damage and impair the 8. Insert SAF special tool P/N 4 434 3885 00 and pull slide function of the brake. out the reset shaft (B) with complete x-ring, see 14.

  • Page 36: Final Procedure

    Finally, slide the pad retainer under the brake calliper seal until the spring of the pad retainer engages in the locking position. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 37: Final Procedure

    ► Fig. 76 The direction of the arrow indicates the direction of rotation of the wheel. Fig. 76 - Direction-oriented installation of SAF SBS 2220/SBS 1918 XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 38: Wear Limits

    SAF special tool for SBS 2220 H0 The listed tools are part of the SAF Universal Toolbox for disc brakes P/N 3 434 3328 01 or available as an addi- tional set P/N 3 434 3335 00 for the existing SAF Universal Toolbox.

  • Page 39: Fault Finding

    First time on commissioning. Check indicator lamp. – – – First time on commissioning. Check pressure pipes through adjustment of system pressure. – – – First time on commissioning. XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...

  • Page 40: Spare Parts And Repair Kit List

    9 Spare parts and repair kit list Spare parts and repair kit list Spare parts and repair kits for compressed-air disc brake SAF SBS 2220/SBS 1918 H0. Fig. 77 - Spare part illustration XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 41 80.3 Bushing cannot be ordered individually 80.4 Bellows cannot be ordered individually 81.2 Guide pin cannot be ordered individually 83.1 Protective cap cannot be ordered individually XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND...
  • Page 42 Emergency hotline +49 6095 301-247 Customer Service +49 6095 301-602 +49 6095 301-259 service@safholland.de www.safholland.com SAF-HOLLAND GmbH Hauptstraße 26 D-63856 Bessenbach...

This manual is also suitable for:

Sbs 1918 h0

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