- Off-Highway Truck/Tractor
- 773F (S/N: EED1-UP; EXD1-UP)
- 777F (S/N: WTK1-UP; JRP1-UP; JXP1-UP)
- OEM POWERTRAIN (S/N: DTE1-UP)
- 777F (S/N: WTK1-UP; JRP1-UP; JXP1-UP)
- Quarry Truck
- 775F (S/N: EYG1-UP; DLS1-UP)
Reference: Special Instruction, REHS7575, "Procedure to Install an Updated Body Position Switch on Certain 773F and 775F" Off-Highway Trucks.
Reference: Special Instruction, REHS6086, "Procedure to Install an Updated Body Position Switch on Certain 777F" Off-Highway Trucks.
Reference: Special Instruction, REHS1841, "General Welding Procedures"
Description Of Change: The bodies on the 773F, 775F, and 777F Off-Highway Trucks will be serviced with the bodies used on the current production 773G, 775G, and 777G Off-Highway Trucks.
The 777F and 777G Off-Highway Trucks use the same body so the replacement body will be an exact fit. No modifications are required to the mounting locations. The 777G body will come with a bracket welded to the body. The bracket is used to locate the magnet required to actuate the body position switch. The 777F chassis wiring group will have to be updated. Remove and replace the existing lever actuated switch with the magnetic body position switch required for the 777G body. Refer to the rework procedure provided in Special Instruction, REHS6086, "Procedure to Install an Updated Body Position Switch on Certain 777F" Off-Highway Trucks. This publication provides a parts list and installation procedure for the new sensor for the magnetic switch.
The 773F and 775F truck bodies have the same mounting locations as the 773G and 775G truck bodies. Changes have been made to the front wall of the 773G and 775G truck bodies resulting in a different rocker pad and exhaust connection locations. The difference in locations will be compensated using spacers that will be welded to the body when the body is ordered. Refer to the tables below when ordering a replacement body. The 773G and 775G bodies will come with a bracket welded to the body. The bracket is used to locate the magnet required to actuate the body position switch. The 773F and 775F chassis wiring groups will have to be updated. Remove and replace the existing lever actuated switch with the magnetic body position switch required for the 773G and 775G bodies. Refer to rework procedure given in Special Instruction, REHS7575, "Procedure to Install an Updated Body Position Switch on Certain 773F and 775F" Off-Highway Trucks. for the parts list and installation procedure of the new sensor for the magnetic switch.
Adaptable To: This change is adaptable to the serial numbers listed above.
773, 775, and 777 Replacement Body and Liner Groups
| 773F, 775F, and 777F Replacement Body and Liner Groups | ||||||||
|---|---|---|---|---|---|---|---|---|
| Model | Series F Body and Liner Group | Body Group | Description | Liner Group | Description | Series G Body Group | Series G Description | Adapter Assembly |
| 773F | 60 ton FF (Domestic) | 8/0/16 Steel | 60 Ton FF Steel | |||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| (1) | 60 Ton FF Rubber | |||||||
| (2) | ||||||||
| 60 Ton FF (Export) | 8/0/16 Steel | 60 Ton FF Steel | ||||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| 60 Ton DS (Domestic) | 8/0/16 Steel | 60 Ton DS Steel | ||||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| (1) | 60 Ton FF Rubber | 377-6350 | ||||||
| (2) | ||||||||
| 60 Ton DS (Export) | 8/0/16 Steel | 377-6310 | 60 Ton DS Steel | 377-6350 | ||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| 775F | N/A | 70 Ton Quarry Body | N/A | 14/16/25 Steel Base Plates | 70 Ton Quarry Body | |||
| 70 Ton FF (Domestic) | 8/0/16 Steel | 377-6400 | 70 Ton FF Steel | |||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| (1) | 70 Ton FF Rubber | |||||||
| (2) | ||||||||
| 70 Ton FF (Export) | 8/0/16 Steel | 377-6400 | 70 Ton FF Steel | |||||
| 8/0/20 Steel | ||||||||
| 12/12/25 Steel | ||||||||
| 70 Ton DS (Domestic) | 8/0/16 Steel | 70 ton DS Steel | ||||||
| 8/0/20 Steel | ||||||||
| 8/0/20 Steel | ||||||||
| (1) | 70 Ton FF Rubber | |||||||
| (2) | ||||||||
| 70 Ton DS (Export) | 8/0/16 Steel | 70 Ton DS Steel | ||||||
| 8/0/20 Steel | ||||||||
| 8/0/20 Steel | ||||||||
| 777F | 100 Ton X Body | N/A | Medium Duty Steel Liner | No Change in Body Part Number from 777F to 777G | ||||
| 100 Ton X Body | N/A | Heavy Duty Steel Liner | ||||||
| 100 Ton X Body | N/A | Rubber Liner | ||||||
| 100 Ton DS | 8/8/16 Steel | |||||||
| 100 Ton DS | 8 mm (0.315 inch) Steel SW, 8 mm (0.315 inch) FW, 101.6 mm (4.00 inch) Rubber F | |||||||
| N/A | 100 Ton Coal Body | N/A | |
|||||
| N/A | 100 Ton Coal Body | N/A | |
|||||
| N/A | 321-5500 | 100 Ton Coal Body | N/A | |
||||
| N/A | 100 Ton Coal Body | N/A | |
|||||
| (1) | 8 mm (0.315 inch) Steel SW, 0 FW, 101.6 mm (4.00 inch) Rubber F |
| (2) | 12 mm (0.47 inch) steel SW, 0 FW, 101.6 mm (4.00 inch) Rubber F |
Note: Abbreviations used in the Table 1 follow. SW is Side Wall, FW is Front Wall, and F is Floor.
| |
| Illustration 1 | g03333260 |
|
(W1) (W2) (W3) (W4) (A) (B) (C) (D) | |
For the 773F and 775F machines, use the information in Illustration 1 to secure the adapter plates to the truck body. The adapter plates are part of the 377-6350 Adapter As. Place plates (1) to align with the pads on the chassis. Place plate (2) to align with the exhaust opening on the body.
Prepare the areas for welding. For the proper procedure, refer to Special Instruction, REHS1841, "General Welding Procedures". The welds must meet one of the following specifications: AWS E7018, AWS A5.18 ER70S-2, AWS A5.18 ER70S-3, AWS A5.18 ER70S-6, AWS A5.18 ER70C-6M, AWS A5.20 E70T-1, AWS A5.20 E70T-5, AWS A5.20 E70T-9, AWS A5.20 E70T-12, AWS A5.20 E71T-1, AWS A5.20 E71T-5, AWS A5.20 E71T-9, AWS A5.20 E71T-12, AWS A5.17 F7A2-EM12K and AWS A5.17 F7A2-EM13K