Splitter Gearbox Repair - Woods BATWING BW12 Operator's Manual

12. Check that the gear backlash is between 0.006"
and 0.016". You should not have to adjust the
backlash.
13. Slide gear spacer (7) and ball bearing (20) on input
shaft (5) and secure with retaining rings (6) and (8).
14. Slide input seal (4) onto input shaft (5) and press
into housing flush with front using a tube of correct
diameter. Be careful not to damage seal lip.
15. Check gearbox housing for leaks by plugging all
holes except one. Apply 4 psi compressed air and
immerse the gearbox in water to verify that there
are no leaks.
Remove gearbox from water and dry off with com-
pressed air. Add SAE 80W or 90W EP oil until it runs
out of side level hole. Tighten all plugs.

SPLITTER GEARBOX REPAIR

Removal from Cutter
1. Disconnect and remove
gearbox.
2. Remove the four cap screw and lock nuts that
secure gearbox to cutter, and remove gearbox.
NOTE: Gearbox is heavy: do not attempt to move it
without mechanical assistance.
Disassembly
Center Shaft
1. Remove plug from side of gearbox and pour out
the gear oil.
2. Remove seal (11, to be replaced) from the front
and rear of the center shaft (14).
3. Remove snap ring (10) and shim (12) from the
front and rear of the center shaft (14).
4. Support gearbox in a hand press and push on the
rear of the center shaft.
5. Remove bearing (13) from center shaft (14).
6. Remove six cap screws (20) and top cover (21)
from the gearbox housing.
7. Remove gear (17) and bearing (16).
8. Snap ring (15) does not have to be removed from
shaft (14) unless it is damaged.
Side Shaft
9. Remove seal (2), (to be replaced) from the output
shaft (1).
10. Remove snap ring (4) and shim (8) from output
shaft (1).
11. Support gearbox in hand press. Using a punch
through the front opening of the gearbox and, push
28 Dealer Service
(Figure 14)
all drivelines from
shaft (1) and bearing (5) out the backside of
housing.
12. Remove gear (6) from inside housing.
13. Remove bearing (7) and shim (8) by using a
hammer and punch through front opening of the
gearbox and force them out the backside of the
housing.
14. Repeat steps 7 through 11 for opposite side shaft.
Inspect Components
15. Inspect gears for broken teeth and wear. Some
wear is normal and will show on the loaded side of
the teeth. Forged gear surfaces are rough when
new. Check that wear pattern is smooth.
16. Inspect shafts for grooves, nicks, or bumps in the
areas where seals seat. Resurface any damage
with emery cloth or replace shaft.
17. Inspect housing and caps for cracks or other
damage.
Assembly
1. Clean housing, pay specific attention to areas
where gaskets are installed.
2. Wash housing and all components thoroughly.
3. Select a clean work area to assemble gearbox.
4. Replace all seals, bearings, and gaskets.
5. All parts must be clean and lightly oiled before
assembly.
Side Shaft
6. Insert bearing (7) and shim (8) in housing using a
round tube of the same size diameter and a hand
press.
7. Place gear (6) inside the housing and slide output
shaft (1) through gear (6) and into bearing (7).
8. Slide bearing (5) and shim (8) over output shaft.
Secure with snap ring (4).
9. Check end play of shaft by moving it in and out. If
end play is more than 0.012", insert another shim
(8) between snap ring and bearing. Repeat
process until end play is less than 0.012".
10. Check rotational torque. Torque should be less
than 2.2 lbs-inch gear.
11. Place seal (2) over shaft and press into housing
using a tube of the same diameter. Seal should be
flush with housing when properly installed.
12. Repeat steps 6 through 10 for opposite side shaft.
Center Shaft
13. Place gear (17) inside housing and slide center
shaft (14) through the gear from the front of the
housing.
MAN1078 (2/6/2014)