BRACKET AS 2390345 - Caterpillar

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Remove two 3/8 in - 16 NC forcing bolts (13) from piston (14) . Install O-ring seal (15) to brake anchor (11) .
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Attach Tooling (A) to ring (5) , as shown. Position a suitable lifting device to Tooling (A) . Secure the lifting device to a hoist. Install ring (5) to brake anchor (11) . The weight of ring (5) is 84 kg (185 lb).
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Install 51 bolts (12) and the washers that hold ring (5) to brake anchor (11) . Tighten 51 bolts (12) to a torque of 310 25 N m (229 18 lb ft).
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To avoid damage to the braking system, do not exceed 4700 kPa (680 psi) when applying pressure to release the parking brake.
Install Tooling (F) to the service and parking brake, as shown. Apply pressure to the service and parking brake so that the friction discs and outer plates can be installed.
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Note: Lubricate friction discs (8) with Tooling (J) prior to assembly.
Use two people in order to install brake hub (1) , as shown. The weight of brake hub (1) is 54 kg (120 lb). Install the damper assembly (not shown) to ring (5) . Ensure that the friction material of the damper assembly is facing toward the piston (not shown).
Install 12 friction discs (8) and 11 outer plates (10) to ring (5) in alternating order. Install damper assembly (9) to ring (5) . Ensure that the friction material of the damper assembly is facing toward the plate.
Install O-ring seal (7) to ring (5) .
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Attach Tooling (A) to plate (3) , as shown. Position a suitable lifting device to Tooling (A) , as shown. Secure the lifting device to a hoist. Position plate (3) to ring (5) , as shown. The weight of plate (3) is 71 kg (157 lb).
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Install five taperlock nuts (6) that hold the plate (not shown) to ring (5) . Tighten nuts (6) by one revolution before proceeding to the next nut. Tighten nuts (6) in a star pattern to a final torque of 300 15 N m (221 11 lb ft).
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Example (A) illustrates incorrectly installed ring seals.
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Example (B) illustrates correctly installed ring seals.
Install 35 bolts (2) and the washers that hold plate (3) to ring (5) . Tighten bolts (2) to a torque of 310 25 N m (229 18 lb ft).
Install ring seal (4) and the seal ring (not shown) to brake hub (1) .End By: Install the front service and parking brake. Refer to Disassembly and Assembly, "Service and Parking Brake (Front) - Install".