938H and IT38H Wheel Loader and Integrated Tool Carrier Power Train Caterpillar

Illustration 1	g00953289
Typical Example

Note: The following dimensions for the thickness of new clutch discs and of new clutch plates do not include the running clearance of the clutch pack. To measure the running clearance, refer to Testing and Adjusting, "Transmission Clutch Running Clearance - Check" for the machine that is being serviced.

(1) Reverse Clutch Pack

Thickness of eight new clutch discs, eight new clutch plates, and one new end plate for the Reverse Clutch ... 64.00 ± 1.36 mm (2.520 ± 0.054 inch)

Thickness of one new 231-2236 Friction Disc ... 4.00 ± 0.08 mm (0.157 ± 0.003 inch)

Minimum allowable thickness for reusability ... 3.80 mm (0.149 inch)

Thickness of one new 6Y-8512 Plate ... 3.00 ± 0.08 mm (0.118 ± 0.003 inch)

Thickness of one new 6Y-8514 End Plate ... 8.00 ± 0.08 mm (0.315 ± 0.003 inch)

(2) Second Gear Clutch Pack

Thickness of five new clutch discs, five new clutch plates, and one new end plate for the Second Gear Clutch ... 43.00 ± 0.88 mm (1.693 ± 0.035 inch)

Thickness of one new 6Y-7922 Friction Disc ... 4.00 ± 0.08 mm (0.157 ± 0.003 inch)

Minimum allowable thickness for reusability ... 3.80 mm (0.149 inch)

Thickness of one new 6Y-8512 Plate ... 3.00 ± 0.08 mm (0.118 ± 0.003 inch)

Thickness of one new 6Y-8514 End Plate ... 8.00 ± 0.08 mm (0.315 ± 0.003 inch)

(3) Depth for installation of sleeve bearing ... 1.0 ± 0.3 mm (0.039 ± 0.012 inch)

(4) Bearing and Shaft

Diameter of the bearing after assembly ... 65.046 ± 0.039 mm (2.5609 ± 0.0015 inch)

Diameter of the shaft in bearing area ... 64.961 ± 0.010 mm (2.5575 ± 0.0004 inch)

(5) Bearing and Shaft

Diameter of the bearing after assembly ... 65.046 ± 0.039 mm (2.5609 ± 0.0015 inch)

Diameter of the shaft in bearing area ... 64.961 ± 0.010 mm (2.5575 ± 0.0004 inch)

(6) Seal rings

End clearance for the three seal rings ... 0.70 ± 0.20 mm (0.028 ± 0.008 inch)