- Off-Highway Truck:
- 793F AC (S/N: EMD1-UP)
- 793F (S/N: SND1-UP; SSP1-UP; RBT1-UP)
Description of Change: The handrail group has been improved on the 793F Off-Highway Truck. The improved handrail group includes additional parts to help secure the toe-kick plate on the left-hand walkway assembly.
Adaptable To: The 366-3292 Handrail Gp has been updated. The 366-3292 Handrail Gp now has a 438-9873 Plate and mounting hardware to secure the toe-kick.
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| Illustration 1 | g03656986 |
View of the new components on the left-hand walkway | |
The updated handrail group is adaptable to the following machines:
- 793F AC (S/N: EMD1-77)
- 793F (S/N: SND1-131)
- 793F (S/N: SSP1-1027)
- 793F (S/N: RBT1-171)
- 793F AC (S/N: EMD78-UP)
- 793F (S/N: SND132-UP)
- 793F (S/N: SSP1028-UP)
- 793F (S/N: RBT172-UP)
Note: The new 438-9873 Plate can be fabricated.
Safety
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Personal injury or death can result from sudden machine movement. Sudden movement of the machine can cause injury to persons on or near the machine. To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine. |
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When it is necessary to work under the machine with the body (bed) raised, attach the body (bed) retaining cable to the rear tow point. Install the rear tow point pin through the end of the retaining cable. Failure to properly secure the body (bed) may result in personal injury or death. |
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Falling Hazard. May cause personal injury or death. Always attach safety lanyard to appropriate fixing point. |
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Required Parts
| Required Parts | |||
| Item | Qty | Part Number | Description |
| 1 | 1 | 438-9873 | Plate |
| 2 | 2 | 8T-3490 | Weld Nut |
| 3 | 4 | 8T-4195 | Bolt |
| 4 | 6 | 7X-7729 | Washer |
| 5 | 2 | 8T-0389 | Locknut |
Machine Preparation
Note: Permit only one operator on the machine. Either keep other personnel away from the machine, or keep other personnel in the sight of the operator.
- Move the machine to a smooth horizontal location. Move away from any machines that are working and any personnel.
- Move the transmission control to the P position.
- Fully raise the truck body and install the truck body retaining cable. Move the hoist control to the FLOAT position until the cable is tight, then move the hoist control to the HOLD position.
Refer to Operation and Maintenance Manual, "Cable (Truck Body Retaining)"
- Stop the engine.
- Place blocks in front of the wheels and behind the wheels.
Note: Customers/Installers can use a suitable man lift or approved portable type access platform to assist in the installation.
Fabrication Procedure
Fabricate the 438-9873 Plate
- Fabricate plate (1). Refer to the above Illustrations for the dimensions.
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| Illustration 2 | g03656996 |
(1) 438-9873 Plate | |
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| Illustration 3 | g03657021 |
Dimensions for 438-9873 Plate (1) (A) 11.5 mm (0.453 inch) by 20 mm (0.787 inch) hole (four places) (B) 5 mm (0.197 inch) radius (four places) (C) 6 ± 1 mm (0.236 ± 0.039 inch) radius (two places) (D) 6 mm (0.236 inch) (E) 77 mm (3.031 inch) (F) 98.5 mm (3.878 inch) (G) 14.2 mm (0.559 inch) (H) 25 mm (0.984 inch) (J) 21.7 mm (0.854 inch) (K) 33.5 mm (1.319 inch) (L) 138.6 mm (5.456 inch) (M) 172.1 mm (6.775 inch) (N) 194.1 mm (7.642 inch) | |
Fabrication to the 299-8125 Plate
- Drill two holes on the 299-8125 Plate. Refer to the above Illustrations for the locations and dimensions.
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| Illustration 4 | g03657075 |
View of the location of the holes on the 299-8125 Plate | |
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| Illustration 5 | g03657071 |
Dimensions for the holes on the 299-8125 Plate (A) 50 mm (1.968 inch) (B) 25 mm (0.984 inch) (C) 58.5 mm (2.303 inch) (D) 13.5 mm (0.531 inch) diameter hole (two places) | |
Fabrication to the 295-1726 Walkway As
- Drill two holes on the 295-1726 Walkway As. Refer to the above Illustrations for the locations and dimensions.
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| Illustration 6 | g03657092 |
View of the location of the holes on the 295-1726 Walkway As | |
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| Illustration 7 | g03657093 |
Dimensions for the holes on the 295-1726 Walkway As (A) 84.75 mm (3.336 inch) (B) 56 mm (2.204 inch) (C) 89.5 mm (3.523 inch) (D) 13.8 mm (0.543 inch) diameter hole (two places) | |
- Prepare the area around the new holes for welding. Remove all paint, dirt, debris, grease, or metal chips from the area.
Weld two weld nuts (2) behind the holes that were previously created.
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| Illustration 8 | g03657135 |
View of the bottom of the 295-1726 Walkway As (2) 8T-3490 Weld Nut | |
Note: Refer to Special Instruction, REHS1841, "General Welding Procedures"
- Repaint the walkway assembly, as needed.
Installation Procedure
