REAR DRUM BRAKE — Removal (Cont'd) / Inspection — Wheel Cylinder / Inspection — Drum
BR-28prose procedureDrum max diameter only 1.5 mm above standard — re-machining margin is small (0.75 mm per side).
Removal (Cont'd)
- 2Remove brake shoe retainer, remove spring by rotating shoes.
UBR077 - 3Remove adjuster assembly.
UBR078 - 4Disconnect parking brake cable from operating lever.
CAUTION
Be careful not to damage parking brake cable when detaching it.
Inspection — Wheel Cylinder
NOTE
• Check wheel cylinder for leakage.
• Check for wear, damage and loose conditions. Replace if any such condition exists.
Inspection — Drum
| Specification | Value |
|---|---|
| Standard drum inner diameter | 180mm (7.09 in) |
| Maximum drum inner diameter (repair limit) | 181.5mm (7.15 in) |
| Maximum drum out-of-roundness | 0.03 or lessmm (0.0012 in) |
Standard drum inner diameter
180mm (7.09 in)
Maximum drum inner diameter (repair limit)
181.5mm (7.15 in)
Maximum drum out-of-roundness
0.03 or lessmm (0.0012 in)
NOTE
• Contact surface should be fine finished with No. 120 to 150 emery paper.
• Using a drum lathe, machine brake drum if it shows scoring, partial wear, stepped wear or ovality.
• After brake drum has been completely reconditioned or replaced, check drum and shoes for correct contact pattern.