994K Wheel Loader Systems Caterpillar

Torque Converter

Usage:

994K MM9

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Illustration 1	g03890112
Front view

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Table 1
Specification for 390-4071 Torque Converter Gp
Item	Qty	Part	Specification Description
1	18	0S-1588 Bolt	Torque to 50 ± 7 N·m (37 ± 5 lb ft).
2	1	6V-9667 Bolt	Torque to 530 ± 50 N·m (391 ± 37 lb ft).

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Illustration 2	g03890126
Section A-A

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Table 2
Item	Qty	Part	Specification Description
3	Thickness of three new discs and two new plates is 21.35 ± 0.34 mm (0.841 ± 0.013 inch):
	3	336-9318 Friction Disc	Thickness of one new disc is 4.83 ± 0.08 mm (0.190 ± 0.003 inch).
	2	1T-1897 Plate	Thickness of one new plate is 3.43 ± 0.05 mm (0.135 ± 0.002 inch).
4	26	9X-8880 Bolt	Use the following procedure to tighten bolts: 1. Tighten two of bolts that are separated by 180° to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 2. Tighten bolts by alternating 45° until eight bolts are tightened to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 3. Tighten remaining bolts to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 4. Ensure that all of bolts have been tightened to a torque of 240 ± 25 N·m (177 ± 18 lb ft).
5	12	0T-0768 Bolt	Torque to 80 ± 10 N·m (59 ± 7 lb ft).
6	30	9X-8877 Bolt	Use the following procedure to tighten bolts: 1. Tighten two of bolts that are separated by 180° to a torque of 120 ± 15 N·m (89 ± 11 lb ft). 2. Tighten bolts by alternating 45° until eight bolts are tightened to a torque of 120 ± 15 N·m (89 ± 11 lb ft). 3. Tighten remaining bolts to a torque of 120 ± 15 N·m (89 ± 11 lb ft). 4. Ensure that all of bolts have been tightened to a torque of 120 ± 15 N·m (89 ± 11 lb ft).
7	Thickness of five new discs and four new plates is 53.35 ± 0.72 mm (2.100 ± 0.028 inch):
	5	324-9127 Friction Disc	Thickness of one new disc is 5.59 ± 0.08 mm (0.220 ± 0.003 inch).
	4	390-4061 Plate	Thickness of one new plate is 6.35 ± 0.08 mm (0.250 ± 0.003 inch).
8	16	9X-8883 Bolt	Use the following procedure to tighten bolts: 1. Tighten two of bolts that are separated by 180° to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 2. Tighten bolts by alternating 45° until eight bolts are tightened to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 3. Tighten remaining bolts to a torque of 240 ± 25 N·m (177 ± 18 lb ft). 4. Ensure that all of bolts have been tightened to a torque of 240 ± 25 N·m (177 ± 18 lb ft).
9	3	0S-1602 Bolt	Torque to 240 ± 25 N·m (177 ± 18 lb ft).
10	1	133-4296 Lip Type Seal	Lubricate seal lightly with lubricant that is being sealed.
11	12	7B-3235 Bolt	Torque to 120 ± 15 N·m (89 ± 11 lb ft).
12	2	9M-9545 O-Ring Seal	Lubricate seal lightly with lubricant that is being sealed.

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