Woods BRUSHBULL BB48 Operator's Manual page 26

GEARBOX REPAIR
(BB84 S/N 827626 & Prior)
Disassemble Gearbox
Refer to Figure 12.
1. Drain oil from gearbox.
2. Remove cover bolts (21) and lock washers (23).
3. Remove front cover plate (16). Remove bearing
(13), gasket (15), and seal (14) from cover plate.
4. Remove shaft (11) along with gear (12) and
bearing (10).
5. Remove lower cover bolts (22) and lock washers
(17) from lower cover plate (1). Remove gasket (2)
and seal (3) from bottom cover plate.
6. Remove output shaft along with bearings, gears,
and castle nut from gearbox housing.
7. Remove cotter pin (18) and castle nut (24).
Remove gear (8). Remove upper bearing cone (5),
spacer (6), and lower bearing (5).
8. Remove bearing cone (5) and shims (7) from gear
(8).
Reassemble Gearbox
Refer to Figure 12.
NOTE: Replace all seals, bearings, and gaskets. All
parts must be clean and lubricated before assembling.
1. Insert bearing (10) into gearbox.
2. Reassemble output shaft (4) with bearings (5),
spacer (6), gear (8), shims (7), and castle nut (24).
22 Dealer Service
Insert output shaft with bearings into gearbox
housing.
3. Tighten castle nut until shaft rolling torque is 5.5 to
13 lbs-inch. Insert cotter pin (18) through nut and
shaft.
4. Insert seal (3) into lower cover (1). Place gasket (2)
on cover (1), being careful to prevent cutting seal
lip. Install lower cover output shaft. Install lock
washers (17) and bolts (22). Shaft should not have
any axial play.
5. Install gear (12) onto shaft (11). Install shim (26) on
rear of shaft (11). Insert shaft (11) into gearbox
housing.
6. Install seal (14) and bearing (13) in front of cover
(16). Place shims (25) on shaft (11). Install gasket
(15) on front cover (16). Install front cover over
input shaft (11). Taking care not to damage seal,
insert bolts (21) and lock washers (23).
7. Check end of shaft (11). Maximum play allowed is
.008". Do not preload ball bearings (10 & 13). Gear
backlash should be .006" to .017" at outer tooth.
Reinstall Gearbox
NOTE: Gearbox is heavy: do not attempt to move with-
out assistance.
1. Set gearbox on cutter and fasten gearbox to cutter,
using bolts and nuts. Torque hardware to 300 lbs-ft.
2. Attach crossbar (see Install Crossbar on page
25).
3. Fill housing to shaft center line with gear lube.
MAN0050 (Rev. 1/16/2004)