ENGINE AR 5401156 - Caterpillar

Illustration 2 g03531091
Illustration 3 g03531094
Ensure that the 6V-7732 Bolt or 8T-0722 Locking Bolt for each tube assembly are in place, and have not fallen out into the tank. Refer to Illustration 2 and Illustration 3.
Change the tube assembly, bolts, and washers one at a time to maintain alignment.To Update Hardware for 351-8349 Tube As (Implement Return)
Illustration 4 g03531243
Remove bolts (D) and washers (C). Discard the parts.
Illustration 5 g03531098
Illustration 6 g03531099
Install two new locking bolts (1) and two new hard washers (2). Refer to Illustration 6.
Tighten locking bolts (1) to a torque of 55 10 N m (41 7 lb ft).To Update Hardware for 231-9491 Tube As (Case Drain Return)
Illustration 7 g03531242
Remove locking bolts (E) and washers (C). Discard the parts.
Illustration 8 g03531100
Illustration 9 g03531102
(A) Dimension is 2.5 mm (0.10 inch) (to be removed and Grinded flat) (B) Diameter is 21.0 mm (0.83 inch) (C) Diameter is 11.0 mm (0.43 inch) (D) Dimension is 5.0 mm (0.20 inch)
Prior to assembly, grind the hard washers (2) to avoid possible interference of the hard washers with the flange weld. Refer to Illustration 9 for dimensions.
Illustration 10 g03531101
Install two new bolts (3) and two new hard washers (2). Refer to Illustration 10.
Orient hard washers (2) in the direction so that the flat surface is facing towards the flange weld. Tighten bolts (3) to a torque of 55 10 N m (41 7 lb ft).To Update Hardware for 246-2166 Tube As (Fan Return)
Illustration 11 g03531241
Check the tube assembly or flange assembly. If, the tube is weld to flange then remove locking bolts (E) and washers (C). Discard the parts.
Illustration 12 g03531124
Illustration 13 g03531132
Prior to assembly, grind the hard washers (2) to avoid possible interference of the hard washers with the flange weld.
Install two new bolts (3) and two new hard washers (2) .
Orient hard washers (2) in the direction so that the flat surface is toward the flange weld. Tighten bolts (3) to a torque of 55 10 N m (41 7 lb ft).
If there is no weld between the tube and the flange, then grinding is not required for hard washers (2). Tighten the bolt (3) to a torque of 55 10 N m (41 7 lb ft).
Reinstall tube assembly (A) with nuts (B) and washers (C) that was saved previously.
Refill the hydraulic tank.