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E) Installation instructions
Turning down the brake linings
Even after a brake lining replacement with new brake linings, the
brake lining must be in full contact with the braking surface of the
brake drum over its whole surface in order to achieve an optimum
braking effect.
For a uniform contact pattern, the brake lining must therefore be
turned down centrally to the stub shaft on a normal workshop brake
lining lathe.
Set the lathe tool to the diameter of the brake drum + 0.3 mm.
Use the clamping device for the brake shoes,
SAF Part No. 3 349 1001 00.
Leave the clamping device loose at this stage – do not clamp!
Turn the camshaft by actuating the slack adjuster until the brake
shoes are spread sufficiently that the lathe tool can take off material
over the whole circumference of the brake linings.
Now tighten the clamping device.
Turn down the brake linings.
Inspect the brake lining surface all over for complete machining. If
necessary, loosen the clamping device and spread the brake shoes
slightly further and repeat the machining process.
Remove the clamping device.
Remove all chips of the brake lining from the brake shoes and stub
axle.
Brake lining lathe
90 mm diameter supporting tube inner wheel bearing
65 mm diameter supporting tube outer wheel bearing
Order adapter sleeves from the lathe manufacturer.
Installing the wheel hub with brake drum
Completely coat the ABS sensor with copper paste and press into
the sensor holder up to the collar.
Completely coat the wheel bearing seats on the stub shaft and in
the wheel hub with SAF fitting paste (SAF Part No 4 387 0015 06).
See chapter “Maintenance instructions” for recommended media.
