994H Wheel Loader Power Train Caterpillar

Illustration 1	g02484227

(1) Torque for the 12 bolts ... 120 ± 15 N·m (90 ± 10 lb ft)

(2) Lockup Clutch

Total thickness of three new discs and two new plates for the lockup clutch ... 21.35 ± 0.34 mm (0.841 ± 0.013 inch)

Thickness of one new 8E-8328 Disc ... 4.83 ± 0.08 mm (0.190 ± 0.003 inch)

Thickness of one new 1T-1897 Plate ... 3.43 ± 0.05 mm (0.135 ± 0.002 inch)

(3) Torque for the ten bolts ... 80 ± 10 N·m (60 ± 5 lb ft)

(4) Clearance across the diameter between the turbine and the housing ... 2.42 ± 0.50 mm (0.095 ± 0.020 inch)

(5) Torque for the 30 bolts ... 120 ± 15 N·m (90 ± 10 lb ft)

Note: Initially tighten two bolts that are 180 degrees away from each other. To be sure that the bolts are tightening evenly, rotate the assembly at 45 ± 12 degrees until there are eight bolts that are tightened. Then tighten all of the bolts. Overlap the starting point in order to be certain that all the bolts are tight.

(6) Impeller clutch

Total thickness of five new discs and four new plates for the impeller clutch ... 53.35 ± 0.72 mm (2.100 ± 0.028 inch)

Thickness of one new 6I-8597 Disc ... 5.59 ± 0.08 mm (0.220 ± 0.003 inch)

Thickness of one new 6Y-7198 Plate ... 6.35 ± 0.08 mm (0.2500 ± 0.0031 inch)

(7) Torque for the 16 bolts ... 240 ± 25 N·m (175 ± 20 lb ft)

Note: Initially tighten two bolts that are 180 degrees away from each other. To be sure that the bolts are tightening evenly, rotate the assembly at 45 ± 12 degrees until there are eight bolts that are tightened. Then tighten all of the bolts. Overlap the starting point in order to be certain that all the bolts are tight.

(8) Torque for the six bolts ... 50 ± 7 N·m (35 ± 5 lb ft)

(9) Torque for the 12 bolts ... 50 ± 7 N·m (35 ± 5 lb ft)

(10) Torque for the bolt ... 530 ± 50 N·m (390 ± 40 lb ft)

(11) Apply a minimal amount of the lubricant which is being sealed to the sealing lip.

(12) Diameters

Inside diameter of the bearing in the hub assembly ... 164.557 ± 0.043 mm (6.4786 ± 0.0017 inch)

Diameter of the bearing surface of the carrier ... 164.337 ± 0.013 mm (6.4699 ± 0.0005 inch)

(13) Diameters

Inside diameter of the bearing in the housing assembly ... 209.663 ± 0.066 mm (8.2544 ± 0.0026 inch)

Diameter of the bearing surface of the hub ... 209.363 ± 0.025 mm (8.2426 ± 0.0010 inch)

(14) Diameters

Inside diameter of the bearing in the hub assembly ... 134.424 ± 0.062 mm (5.2923 ± 0.0024 inch)

Diameter of the bearing surface of the carrier ... 134.234 ± 0.013 mm (5.2848 ± 0.0005 inch)

(15) Apply a minimal amount of the lubricant which is being sealed to the bore.

(16) Clearance across the diameter between the impeller and the stator ... 1.25 ± 0.17 mm (0.049 ± 0.007 inch)

(17) Clearance across the diameter between the impeller and the housing ... 1.00 ± 0.29 mm (0.039 ± 0.011 inch)

(18) Clearance across the diameter between the turbine and the stator ... 1.25 ± 0.17 mm (0.049 ± 0.007 inch)

(19) Torque for the two bolts ... 80 ± 10 N·m (60 ± 5 lb ft)

(20) Torque for the 26 bolts ... 240 ± 25 N·m (175 ± 20 lb ft)

Note: Initially tighten two bolts that are 180 degrees away from each other. To be sure that the bolts are tightening evenly, rotate the assembly at 45 ± 12 degrees until there are eight bolts that are tightened. Then tighten all of the bolts. Overlap the starting point in order to be certain that all the bolts are tight.

(21) Torque for the three bolts ... 240 ± 25 N·m (175 ± 20 lb ft)