769D Off-Highway Truck/Tractor and 771D Quarry Truck Power Train Caterpillar


Transmission Hydraulic Control

Usage:

769D BBB



Illustration 1g00507624

Top view




Illustration 2g00507625

View A-A




Illustration 3g00507626

Rear view of area "B"


NOTICE

Do not use any caustic (corrosive) materials in order to clean any parts of this group. Caustic materials will cause corrosion and damage to the parts.


(1) Torque for nut ... 9.0 ± 0.5 N·m (79.7 ± 4.4 lb in)

(2) Refer to Specifications, "Solenoid Valve (Transmission)".

Installation torque ... 80 ± 5 N·m (59 ± 4 lb ft)

(3) Torque for the four bolts that are marked with an "X" ... 48 ± 4 N·m (35 ± 3 lb ft)

(4) Torque converter inlet relief valve

Installation torque ... 41 ± 7 N·m (30 ± 5 lb ft)

Note: Refer to Specifications, "Selector and Pressure Control Valve (Transmission)" for information on the torque converter inlet relief valve.

(5) Torque for five bolts ... 30 ± 4 N·m (22 ± 3 lb ft)

(6) Torque for bolt ... 48 ± 4 N·m (35 ± 3 lb ft)

(7) Torque for two bolts ... 48 ± 4 N·m (35 ± 3 lb ft)

(8) Torque for two bolts ... 48 ± 4 N·m (35 ± 3 lb ft)

(9) Transmission gear switch

(10) Lubricate the sealing lip with a small amount of the lubricant that is being sealed.

Before you install the lip seal, put a coat of 7M-7260 Liquid Gasket on the sealing bore. Allow the liquid gasket to dry before you install the seal. Do not put any liquid gasket on the lip seal. Install the seal so that the seal lip faces the inside of the component.

(11) The notch on the connector for the wiring harness should face upward. The centerline of the notch on the connector should be parallel with the mounting face of the switch.




Illustration 4g00507627

7G-1364 Transmission Hydraulic Control Valve

(12) 7G-1364 Transmission Hydraulic Control Valve

All of the valves in this group must be tested as a unit. All of the valves in this group must be assembled into the transmission as a unit. Individual parts of this unit may not be interchanged at any time after the unit has been tested. During repair service, individual parts of this group will be furnished.

(13) Refer to Specifications, "Pressure Control Valve (Transmission)".

(14) Torque for bolt ... 30 ± 4 N·m (22 ± 3 lb ft)

(15) Torque for 12 bolts ... 30 ± 4 N·m (22 ± 3 lb ft)

(16) Refer to Specifications, "Selector and Pressure Control Valve (Transmission)".

(17) Torque for two bolts ... 30 ± 4 N·m (22 ± 3 lb ft)

(18) Torque for bolt ... 30 ± 4 N·m (22 ± 3 lb ft)

(19) Refer to Specifications, "Rotary Actuator (Transmission)".

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