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Professional Meritor Volvo Axial Caliper Assembly Guide | All Key Points & Overhaul
Professional Meritor Volvo Axial Caliper Assembly Guide | All Key Points & Overhaul CHEEFT 51 Views • 7 months ago

⁣In this detailed training video, we demonstrate the professional overhaul and complete assembly process for the Meritor Volvo Axial type brake caliper, step-by-step. From disassembly , cleaning , and parts quality control to reassembly and final testing, every phase is explained to serve as a comprehensive resource for service centers and maintenance teams.


⁣Discover the most critical "key points" that impact lifelong performance in caliper repair.


⁣Key Topics and Critical Points Highlighted in the Video:


⁣Parts Quality Control: Why the lever must be forging (not cast). The importance of induction and a surface hardness of 50-55 Rockwell.

⁣Roller Bearing House: How to check the hardness of the roller bearing house.


⁣Fiber Bushes: Why heat-resistant fiber material must be used instead of plastic and why you must not rush the installation (slow and careful).

⁣Mechanism Direction: A warning that mixing left and right mechanisms will cause "stacking" and lock-up.

⁣Rubber Quality: Rubbers must be heat-protected to prevent melting.

⁣!!! THE MOST IMPORTANT STEP: During cover installation, ensuring the roller bearings are correctly seated in the "nails" of the housing. This common mistake can destroy the caliper.


⁣Tightening Sequence: Using a specific order and a cross pattern when tightening the cover bolts.

⁣Brake Chamber Warnings: How incorrect brake chambers (pin length or centering ) can damage the lever.

⁣Final Test (Turn Count): Verifying the repaired mechanism completes its adjustment in 8 to 8.5 turns , matching the original.

⁣Final Adjustment: Leaving a 45-degree flexibility gap at the end of the adjustment.
BPW TSB 4309-228 Caliper Assembly Guide | All Key Points (Roller Bearing Position!)
BPW TSB 4309-228 Caliper Assembly Guide | All Key Points (Roller Bearing Position!) CHEEFT 135 Views • 7 months ago

⁣Bushing Installation Tool: https://www.cheeft.com/tr/prod....ucts/meritor/meritor


⁣For More Products: https://www.cheeft.com/tr


⁣In this detailed training video, we demonstrate the professional overhaul and complete assembly process for the BPW TSB 4309-228 brake caliper, step-by-step. From disassembly, cleaning, and parts quality control to reassembly and final testing, every phase is explained to serve as a comprehensive resource for service centers and maintenance teams.

Discover the most critical "key points" in this video that impact the long-term performance of this caliper model.


⁣Key Topics and Critical Points Highlighted in the Video:
Parts Quality Control:

Lever & Bridge: Must be forging, not cast.

⁣Roller Bearing: Hardness must be over 45-50 Rockwell.

⁣Bushings: Must be bronze material, not brass.

⁣Rubber Boots: Must have heating protection to prevent melting and water ingress.


⁣Critical Assembly Steps:


⁣!!! THE MOST IMPORTANT STEP (Mechanism): After placing the mechanism in the housing, DO NOT LIFT IT UP. Lifting it will displace the roller bearing, causing the caliper to fail within 1-3 months.

⁣Roller Bearing Positioning: The bearing must be pressed into the lever perfectly flat and centered (using a hammer and screwdriver to align if needed).

⁣Lever Position: Ensure the lever's "nail" is correctly seated in its hole; incorrect positioning will cause the caliper to never work properly.


⁣Bolt Security (Loctite):


⁣Blue glue (Loctite) must be used on all bolts (especially mechanism and guide pins).

⁣Bolts loosening from vibration can cause the carrier to stick, misalign the brake chamber, and lead to catastrophic damage.



⁣Tightening Sequence: Always use a cross pattern when tightening the mechanism bolts.



⁣Testing and Adjustments:


⁣Mechanism Turn Count: Must be 3.25 (three and a quarter) turns, matching the original.

⁣Lever Test: The lever must not stick when released slowly (sticking causes heating).

⁣Final Adjustment: A 45-degree flexibility gap must be left in the adjuster at the end.

⁣Brake Chamber Warning: If the brake chamber pin is too long, it will cause a constant heating problem.