HEATER AS 1344125 - Caterpillar

Install spring (21) on clutch housing assembly (11) .
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Install seal (20) on piston (18) .
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Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install piston (18) . Use Tooling (B) and a suitable press in order to position piston (18) . Use Tooling (C) in order to install retaining ring (19) . Carefully release the tension on Tooling (B) .
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Install clutch plates (16) and discs (17) . Install retaining ring (15) .
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Position cover assembly (8) onto clutch housing assembly (11) .Note: Make sure that the splines of cover assembly (8) fully engage all of the clutch plates and discs in the clutch assembly.
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Note: Caution is required while handling the lip seals. The lip seals can be damaged if objects or cleaning fluids contact the sealing surface.
Use a suitable press in order to install bearing (14) . Use Tooling (A) in order to install retaining ring (13) . Install lip seal (12) .
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Position cover assembly (8) on the opposite side.
Install O-ring seal (10) on cover assembly (8) .
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Position cover assembly (8) onto case (9) . Install bolts (7) and tighten bolts (7) to a minimum torque of 18 N m (13 lb ft) up to a maximum torque of 31 N m (23 lb ft).
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Apply Tooling (F) to the full diameter of the shoulder on drive flange (6) . Position new sleeve (6A) on drive flange (6) . The external chamfer on sleeve (6A) will be on top. Use Tooling (H) and a suitable press in order to install sleeve (6A) . Remove excess Tooling (F) .
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Install drive flange (6) and O-ring seal (5) .
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Install retainer (4) . Tighten retainer (4) to a minimum torque of 610 N m (450 lb ft) up to a maximum torque of 750 N m (550 lb ft). After achieving the torque range, overtighten retainer (4) as needed in order to align the next position for locking screws (3) .
Install locking screws (3) and tighten locking screws (3) to a minimum torque of 7 N m (62 lb in) to a maximum torque of 10 N m (89 lb in).
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Position sensor (1) . Install bolt (2) .End By: Install the fan clutch. Refer to Disassembly and Assembly, "Fan Clutch - Install".