If is often necessary to identify a bucket without a machine or determine if a bucket will fit another machine.
Most Caterpillar built buckets have an identification plate that provides part number, Family Linkage and width; as well the part number is also stamped between the hinge plates. Fieldchief bucket also have a nameplate that includes part number, serial number and date of manufacture, the serials number is coded to include capacity, family type and identity number, 09BE50. (“09” .9m3: “B” Family Linkage: “E” Excavator: 50 identity number. Identification can also be made taking measurements using the Hinge Chart and Table.
Additional information can be found on pages 83,84& 85 PSK GET 6th edition.
Hinge Chart

Hinge Table
Model / Family | Centre Dist. “A” | Width “B” | Pin Dia. C(stick) | Pin Dia D (link) |
307 | 306mm | 186mm | Dia 45mm | Dia. 45mm |
311 | 407mm | 221 | Dia. 65mm | Dia. 65mm |
312 | 407mm | 221 | Dia. 65mm | Dia. 65mm |
315 | 463mm | 281 | Dia. 70mm | Dia. 70mm |
318 | 445mm | 311 | Dia. 80mm | Dia. 80mm |
A-Family | 407mm | 221 | Dia. 80mm | Dia. 80mm |
B-Family | 445mm | 311 | Dia. 80mm | Dia. 80mm |
B1-Family | 445mm | 311 | Dia. 80mm | Dia. 80mm |
S-Family | 485mm | 311 | Dia. 80mm | Dia. 80mm |
C-Family | 485mm | 351 | Dia. 80mm | Dia. 80mm |
CB2-Family | 485mm | 351 | Dia. 90mm | Dia. 90mm |
D-Family Std | 485mm | 386 | Dia. 90mm | Dia. 80mm |
D-Family MX | 512mm | 386 | Dia. 90mm | Dia. 80mm |
DB-Family Std | 500mm | 386 | Dia. 100mm | Dia. 90mm |
E-Family Std | 556mm | 426 | Dia. 100mm | Dia. 80mm |
E-Family MX | 586mm | 426 | Dia. 100mm | Dia. 80mm |
F-Family | 586mm | 441 | Dia. 100mm | Dia. 80mm |
G-Family | 600mm | 501 | Dia. 110mm | Dia. 90mm |
H-Family | 585mm | 551 | Dia. 130m | Dia. 90mm |
J-Family | 674mm | 651 | Dia. 130mm | Dia. 110mm |