- Track Feller Buncher:
- 521B (S/N: F7B1-UP)
- 522B (S/N: F7C1-UP)
Description of Change: An improved exhaust tube is now used on the engine hoods of the above listed models of Track Feller Bunchers. The improved design reduces the possibility of damage during operation.
The new design is 20 mm (0.79 inch) shorter and has increased thickness for strength and durability.
Adaptable To:
 | |
| Illustration 1 | g03827374 |
(1) Old 367-2139 Tube extending 30 mm (1.20 inch) from the hood group on the right side of the machine. | |
The old 367-2139 Tube extends 30 mm (1.20 inch) from the hood group on the right side of the machine.
The OLD 367-2139 Tube is replaced by NEW 448-6406 Tube on the 361-5319 Hood Assembly. The 361-5319 Hood Assembly is part of the 339-8293 Hood Gp .
Note: This change is made on production machines only. No field replacement part is available.
 | |
| Illustration 2 | g03827413 |
(1) New 448-6406 Tube extending 10 mm (0.39 inch) from the hood group on the right side of the machine. | |
Besides rebending or trimming the exhaust tube, no field replacement part is available.
The 448-6406 Tube is effective in production with the following machines:
- 521B F7B308-UP
- 522B F7C277-UP