- Off-Highway Truck:
- 793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
Note: This article does not apply to every machine with a sequence number in the range of 4AR1-UP. For machines that have a sequence number in the range of 4AR1-245, this article will apply only if the machine meets the following condition:
- The truck has been retrofitted according to the Service Magazine Article, SEPD0390, "New Anti-Rotation Pins Used on Rear Suspension Cylinders to Improve Service Life".
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| Illustration 1 | g01148771 |
View of required tools (1) 251-8155 Adapter Assembly (2) 6V-4170 Adapter (3) twenty three inch extension (Part of 162-8718 Torque Wrench ) (4) Torque wrench (Part of 162-8718 Torque Wrench ) | |
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| Illustration 2 | g01148770 |
View of required tools (1) 251-8155 Adapter Assembly (2) 6V-4170 Adapter (3) twenty three inch extension (Part of 162-8718 Torque Wrench ) (4) Torque wrench (Part of 162-8718 Torque Wrench ) | |
The new adapter assembly (1) is now available for use on the rear suspension of certain 793C Off-Highway Trucks. The six 7Y-5217 Bolts that are on the upper suspension pin are located in a confined space. There is limited clearance between the bolt heads and the tire. The new tooling facilitates the installation and the removal of the six 7Y-5217 Bolts. In order to install the bolts, use the following components: adapter assembly (1), adapter (2), twenty three inch extension (3) and torque wrench (4).
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| Illustration 3 | g01150528 |
View of notice on torque wrench (4) (4) Torque wrench (Part of 162-8718 Torque Wrench ) | |
"Torque in clockwise direction ONLY! Do not use to break fasteners loose. See instructions for calibration information."
| NOTICE |
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Do not attempt to use torque wrench (4) in order to break loose the bolts. Use adapter assembly (1), adapter (2), and twenty three inch extension (3) in order to loosen the bolts. The combined length of adapter (2) and twenty three inch extension (3) provides the torque that is needed in order to loosen the bolts. |