CAMSHAFT ASSEM. 6N7823 - Caterpillar

Start By:
Separate the track.
Remove the bulldozer and C-frame.
Remove trunnion.
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Use Tooling (C) to raise the rear of the machine. Raise the machine so the roller frame will clear the track. Install Tooling (B).
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Typical example
Position Tooling (A) as shown. Use Tooling (A) to raise the front of the machine. Refer to Tool Operating Manual, NEHS1303, "Lift Group (Stand - 25 Ton)" for more information.
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Remove hand rail (1).
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Remove plug (2). Use Tooling (D) to remove plate (3) and the O-ring seal.
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Use a suitable lifting device and a chain to apply some lifting force to track roller frame (4).
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Remove nuts (5) and the washers. Remove bolts (7) and the guards (6). Lower the track roller frame (4) 8 cm (3 inches).
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Attach a suitable lifting device to Tooling (E), as shown.
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Remove and discard bolts (8). Remove retainer (9) and the O-ring seal.
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Use Tooling (E) to remove track roller frame (4). The weight of track roller frame (4) is approximately 1860 kg (4100 lb).
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Remove seal (10) from pivot shaft (11).Installation Procedure
Install track roller frame (4) in the reverse order of removal.
Install new bolts (8). Tighten bolts (8) to a torque of 300 40 N m (220 30 lb ft).