TH48-E80 Petroleum Transmission Caterpillar

Torque Converter

Usage:

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Illustration 1	g01677114

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Illustration 2	g03015819
284-9298 Flexible Coupling

(1) Lockup clutch

Thickness of three new discs and of two new plates ... 21.35 ± 0.34 mm (0.841 ± 0.013 inch)

Thickness of one new 336-9318 Friction 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)

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Illustration 3	g00293522
Bolt Tightening Sequence for Bolts (2)

( 2) Torque for 12 bolts ... 50 ± 7 N·m (37 ± 5 lb ft)

Use the following procedure to tighten 12 bolts (2):

Tighten four of the bolts in numbered sequence 1 through 4. Then, tighten all 12 bolts in numbered sequence 5 through 16. Overlap the starting point in order to make sure that all of the bolts are at the required torque.

(3) Torque for eight bolts ... 50 ± 7 N·m (37 ± 5 lb ft)

(4) Torque for eight bolts ... 50 ± 7 N·m (37 ± 5 lb ft)

(5) Put a small amount of lubricant on the o-ring seal before installation.

(6) Torque for twelve bolts ... 120 ± 15 N·m (89 ± 11 lb ft)

(7) Torque for three bolts ... 120 ± 15 N·m (89 ± 11 lb ft)

(8) 1T-1257 Springs for one-way clutch

Quantity ... 2

Length under test force ... 17.8 mm (0.70 inch)

Test force ... 30.74 ± 1.96 N (6.91 ± 0.44 lb)

Free length after test ... 27.4 mm (1.08 inch)

Outside diameter ... 5.84 mm (0.230 inch)

(9) Torque for twelve bolts ... 80 ± 10 N·m (59 ± 7 lb ft)

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Illustration 4	g00293523
Bolt Tightening Sequence for Bolts (10)

( 10) Torque for 24 bolts ... 240 ± 25 N·m (177 ± 18 lb ft)

Use the following procedure to tighten 24 bolts (10):

Tighten eight of the bolts in numbered sequence 1 through 8. Then, tighten all 24 bolts in numbered sequence 9 through 32. Overlap the starting point in order to make sure that all of the bolts are at the required torque.

(11) Torque for six bolts ... 30 ± 5 N·m (22 ± 4 lb ft)

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Illustration 5	g00293524
Bolt Tightening Sequence for Bolts (12)

( 12) Torque for 24 bolts ... 80 ± 10 N·m (59 ± 7 lb ft)

Use the following procedure to tighten 24 bolts (12):

(13) Torque for 11 bolts ... 50 ± 7 N·m (37 ± 5 lb ft)

(14) Torque for locknut ... 205 ± 15 N·m (151 ± 11 lb ft)

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Table 1
Components		Clearance Across The Diameter	Running⁽¹⁾
(A) Stator and Turbine	new	0.71 to 0.91 mm (0.028 to 0.036 inch)	0.36 to 0.46 mm (0.014 to 0.018 inch)
(A) Stator and Turbine	max worn	1.83 mm (0.072 inch)	0.91 mm (0.036 inch)
(B) Stator and Impeller	new	0.71 to 0.91 mm (0.028 to 0.036 inch)	0.36 to 0.46 mm (0.014 to 0.018 inch)
(B) Stator and Impeller	max worn	1.83 mm (0.072 inch)	0.91 mm (0.036 inch)