S70 L5-2.4L VIN 61 B5244S (2000)
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Remove brake pipe from brake caliper.
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Remove brake caliper mounting bolts (1) and let caliper down.
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Drain remaining brake fluid.
Dismantling brake caliper
Warning: Take care not to get fingers caught when piston is pushed out.
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Remove dirt guard (3).
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Put a block of wood in front of pistons (4) and press out carefully with compressed air.
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Remove pistons. If one piston comes out but the other will not, use clamp 999 2809 and rubber insert as a counterhold in place of the removed
piston.
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Use weatherstrip tool 9814071 or similar to remove O- rings (5)
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Remove bleed nipple (7).
Note: Do not separate the two halves. This requires special pressure-testing equipment and special assembly fluid.
Cleaning and inspection
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Clean components with T-spirit. Check for wear, damage, cracks and rust. Replace components if necessary.
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Always replace O-rings and dirt guard during overhaul. Take particular care to clean ducts and grooves for O-rings and dirt guard.
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If cylinders are badly marked, scratched etc. replace caliper complete.
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Remove minor rust deposits with fine sandpaper.
Assembling brake caliper
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Coat pistons, cylinder lining and O-rings with brake fluid.
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Install O-rings (5) in cylinder grooves.
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Install pistons (4) in brake caliper, one first and then the other.
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Install new dirt guard (3).
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Check that it fits in its groove in pistons and brake caliper.
