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Parts 47
MAN0632 (5/15/2007)
GEARBOX ASSEMBLY PARTS LIST (Continued)
CHECK CHAIN ASSEMBLY (OPTIONAL)
REF PART QTY DESCRIPTION
9 20890 1 Bearing-Ball
10 20897 1 Ring retainer 81mm internal (BB48X,
BB60X, BB72X)
11 * 1 Cotter pin
12 57466 2 Snap ring
13 20895 1 Snap ring (BB48X, BB60X, BB72X)
14 57373 1 Spacer 35.3 x 48 x 2.5 (BB48X,
BB60X, BB72X)
15 57328 2 Gearbox shim kit
15A 57471 1 Shim kit 50.3 x 70.3 (BB84X)
16 57468 1 Castle nut (BB48X & BB60X)
16 57469 1 Castle nut (BB72X)
16 39261 1 Castle nut (BB84X)
17 20892 1 Castle nut metric M24 x 2 (BB48X,
BB60X, BB72X)
17 39323 1 Castle nut metric M30 x 2 (BB84X)
18 20893 1 Washer 25 x 44 x 4 mm (BB48X,
BB60X, BB72X)
18 39322 1 Washer 31 x 56 x 4 mm (BB84X)
19 20888 1 Protective washer (BB48X, BB60X,
BB72X)
19A 57338 1 Screen protection (BB84X)
REF PART QTY DESCRIPTION
20A 57094 1 Shim kit 44 x 30.3 x 1 (BB84X)
20 57473 1 Flat washer 21 x 37 x 3
(BB48X & BB60X)
20 57474 1 Flat washer 25 x 48 x 2.5 (BB72X)
21 20900 1 Seal, metric 40 x 80 x 12
(BB48X, BB60X, BB72X)
21 39289 1 Seal, 50 x 90 x 10 (BB84X)
22 57463 1 Oil seal 35 x 72 x 10
23 57374 1 Oil cap
25 57375 1 Top cover (BB48X & 60X)
25 57376 1 Top cover (BB72X)
25 57139 1 Top cover (BB84X)
26 * 6 M8 x 16 Hex head cap screw CL8.8
(BB48X, BB60X, BB72X)
26 * 6 M8 x 14 Hex head cap screw CL8.8
(BB84X)
27 57076 1 Vent plug 1/2 NPT
28 * 1 Cotter pin
NSS Not Serviced Separately
* Standard hardware, obtain locally
REF PART QTY DESCRIPTION
A 10521 1 Check chain complete
2 7906 2 Check chain bracket, lower
3 18048 2 3/8 Chain, 32-Link and check lug
4 2377 * 3/4 NC x 6 Hex head cap screw GR5
5 2371 * 3/4 NC Hex lock nut
6 12274 * 5/8 NC x 2-1/4 Hex head cap screw GR5
REF PART QTY DESCRIPTION
7 3632 * 5/8 Standard flat washer
8 6239 * 5/8 NC Hex nut
9 ------- Mast plate BB60X, BB72X, BB84X
10 ------- Tractor top link bracket
11 ------- Mast plate BB48X
* Standard hardware, obtain locally
BB48X
BB60X, BB72X, BB84X
(Rev. 3/21/2008)