- Articulated Truck:
- 725 (S/N: AFX740-UP; B1L1-UP)
- 730 (S/N: AGF717-UP; B1M1-UP)
- 730 EJECTOR (S/N: B1W1-UP)
- 735 (S/N: AWR375-UP; B1N1-UP)
- 740 (S/N: AXM686-UP; B1P1-UP)
- 740 EJECTOR (S/N: AZZ283-UP; B1R1-UP)
- 730 (S/N: AGF717-UP; B1M1-UP)
Introduction
ReferenceOperation and Maintenance Manual, "Cab - Tilt".
ReferenceDisassembly and Assembly, RENR3447, "725 and 730 Articulated Trucks Machine Systems", "Cab - Install".
ReferenceDisassembly and Assembly, RENR9564, "730 Ejector Articulated Truck Machine Systems", "Cab - Install".
ReferenceDisassembly and Assembly, RENR5140, "735, 740 and 740 EJECTOR Articulated Trucks Machine Systems", "Cab - Install".
This Technical Information Bulletin identifies the operation and correct installation of the keeper pins for the mounting pins for the cabs on the listed machines.
Ensure that you understand the content of this Technical Information Bulletin before installing keeper pins to the mounting pins. Failure to install a keeper pin correctly will mean that the mounting pin will not be secured in the mounting pin's location.
Problem
There is some confusion in the field about the correct way of installing the 103-5796 Keeper Pins that secure the mounting pins for the cab in place on the listed machines. The mounting pins are used to secure the cab to the front frame. Whenever the cab is installed or the cab lowered as part of Operation and Maintenance Manual, "Cab - Tilt", the keeper pins must be correctly installed after the mounting pins for the cab are installed.
If a 103-5796 Keeper Pin is not installed in the correct way, the keeper pin could fall out of the mounting pin for the cab. Subsequently, the mounting pin can potentially become disengaged and the pin would no longer secure the cab to the front frame. If this occurs, heavy vibrations will be felt by the operator because the cab will be resting directly at one point on the front frame.
Solution
Refer to the following information in order to ensure that you understand the correct operation of the 103-5796 Keeper Pin and that you understand the correct way to install a keeper pin.
 | |
| Illustration 1 | g01283527 |
The ring on the 103-5796 Keeper Pin is in the CORRECT position. Note the orientation of the nose on the keeper pin. Refer to the white arrow. | |
There is only one way for the ring on 103-5796 Keeper Pin (1) to be correctly folded. When the ring is correctly folded in the ring's place, the spring tension in the ring will keep the ring against the shaft of the keeper pin. Refer to Illustration 1, for an example of the ring on the keeper pin that is correctly folded in place. Also, the Illustration shows that the nose on the keeper pin is pointing toward the end of mounting pin (2) for the cab.
 | |
| Illustration 2 | g01283526 |
The ring on the 103-5796 Keeper Pin is in the INCORRECT position. Note the orientation of the nose on the keeper pin. Refer to the white arrow. | |
Refer to Illustration 2, for an example of the ring on the 103-5796 Keeper Pin that is incorrectly folded in place. Also, the Illustration shows that the nose on the keeper pin is pointing away from the end of mounting pin (2) for the cab.
 | |
| Illustration 3 | g01283525 |
103-5796 Keeper Pin (1) is correctly installed in order to secure mounting pin (2) in the cab mount. Note the loop on the side of the cab mount. Refer to the white arrow. | |
When you install 103-5796 Keeper Pin (1) in order to secure mounting pin (2) in the cab mount, ensure that the shaft of the keeper pin goes all the way through the pin and the loop on the side of the bracket for the cab mount. Also, ensure that the keeper pin is installed correctly in order to allow the spring tension in the ring to keep the ring against the shaft of the keeper pin. Refer to Illustration 3.