- Wheel Tractor-Scraper:
- 621G (S/N: DBB1-UP)
- 623G (S/N: DBC1-UP)
- 627G (S/N: DBD1-UP)
ReferenceDisassembly and Assembly, RENR7495, "621G, 623G and 627G Wheel Tractor-Scrapers Engine Supplement", "Hood - Remove and Install"
ReferenceSpecial Instruction, REHS1841, "General Welding Procedures"
Description of Change: A bracket was added to the access door group that will act as a stop for the side door. The bracket will prevent the side door from swinging too far toward the engine. This will prevent damage to the door latch or damage to the hinge.
Adaptable To: The new 341-3596 Bracket is part of the 240-9118 Access Door Gp. The 240-9118 Access Door Gp was relocated to the 288-4235 Access Door Gp .
The 240-9118 Access Door Gp is part of the 288-4235 Access Door Gp and the 309-1376 Access Door Gp that are part of the 240-9110 Tractor Hood Gp .
The new 341-3596 Bracket is adaptable to machines DBB1-655, DBC1-507 and DBD1-911.
The new 341-3596 Bracket became effective in production with the machines DBB656-UP, DBC508-UP and DBD912-UP.
The new 341-3596 Bracket is a nonserviceable item. In order to upgrade machines DBB1-655, DBC1-507 and DBD1-911, you must fabricate the part. Use the following procedure in order to update the earlier machines.
| Needed Parts | |||
| Item | Qty | Part Number | Description |
| 1 | 1 | 4C-4205 | Primer Paint (Yellow) |
| 2 | 1 | 4C-4200 | Paint (High Gloss Yellow) |
| 3 | 5 cm (2.0 inch) |
7X-7877 | Edging Strip |
- By using the dimension in the Illustration 1 and Illustration 2, fabricate the bracket from steel that has a yield strength of 290 to 450 MPa (42061 to 65267 psi).
 | |
| Illustration 1 | g01904294 |
(C) 113.3 mm (4.5 inch) (D) 64.5 mm (2.5 inch) (E) 57 mm (2.24 inch) (F) 3 mm (0.12 inch) (G) 45 mm (1.8 inch) | |
 | |
| Illustration 2 | g01904300 |
View (A-A) (H) 42.5 mm (1.7 inch) (J) 25 degrees (K) Radius 24 mm (0.95 inch) (L) Radius 4 mm (0.16 inch) (M) 4.9 mm (0.19 inch) (N) 4.4 mm (0.17 inch) (P) 68.5 mm (2.7 inch) | |
- Remove the 240-9118 Access Door Gp (4). For the proper procedure, refer to Disassembly and Assembly, RENR7495, "621G, 623G and 627G Wheel Tractor-Scrapers Engine Supplement", "Hood - Remove and Install".
 | |
| Illustration 3 | g01904540 |
- The bracket will be installed on the inside of the right side of the 240-9118 Access Door Gp (4). By using the dimensions in the Illustrations 4 and Illustration 5, locate the position for the bracket.
 | |
| Illustration 4 | g01904435 |
(R) 206 mm (8.1 inch) | |
 | |
| Illustration 5 | g01904455 |
(S) 6 mm (0.24 inch) (W1) A 3 mm (0.12 inch) fillet weld | |
- Prepare the area for welding. For the proper procedure, refer to Special Instruction, REHS1841, "General Welding Procedures".
- Refer to Illustration 5. By applying a 3 mm (0.12 inch) fillet weld (W1) to both sides of the bracket, weld the bracket to the access door group.
The weld must meet the following specifications: AWS A5.1 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 E71T-1, AWS A5.17 F7A2-EM12K and AWS A5.17 F7A2-EM13K
- Clean the welds and inspect the welds. For additional information on the inspection of the weld, refer to Special Instruction, REHS1841, "General Welding Procedures".
- Apply one coat of 4C-4205 Primer Paint (Yellow) (1) to the area. Allow the paint to dry.
- Apply one coat of 4C-4200 Paint (High Gloss Yellow) (2) to the area. Allow the paint to dry.
- Refer to Illustration 3. The bracket will contact the side access door. Apply a 5 cm (2.0 inch) length of 7X-7877 Edging Strip (3) to area (5) of the side access door that will contact the bracket.
- Install the 240-9118 Access Door Gp. For the proper procedure, refer to Disassembly and Assembly, RENR7495, "621G, 623G and 627G Wheel Tractor-Scrapers Engine Supplement", "Hood - Remove and Install".