Woods DS8.30E Manual Del Operador página 24

SPLITTER GEARBOX REPAIR
NOTE: Replacing gears, shafts, bearings, and seals may not be cost effective.
Purchasing a complete gearbox may be more economical.
REMOVE GEARBOX FROM CUTTER
1.
Disconnect driveline from the tractor PTO and remove it from center
gearbox.
2.
Remove vent plug (6) and siphon gear lube from housing through this
opening.
3.
Disconnect and remove flex coupler drivelines from side of gearbox by:
a.
Removing cap screws and hex nuts from driveline.
b.
Loosen set screws from flex coupler yoke.
c.
Slide flex coupler yoke from gearbox shaft.
4.
Remove the four bolts that attach gearbox to cutter and remove gearbox.
Gearbox is heavy; do not attempt to move without mechanical
assistance.
DISASSEMBLE SPLITTER GEARBOX
Refer to Figure 21.
1.
Remove breather plug from top of gearbox.
2.
Remove plug (19) from side of input housing (1) and pour out gear oil.
3.
Remove eight cap screws (3) from around input housing (15). Remove
input shaft assembly and housing.
ASSEMBLE GEARBOX
Refer to Figure 21.
1.
Clean housing, paying specific attention to areas where gaskets will be
installed.
2.
Wash housing and all components thoroughly. Select a clean area for
gearbox assembly. Replace all seals, bearings, and gaskets. All parts
must be clean and lightly oiled before reassembling.
3.
Install new bearing cup (16) in gearbox housing and bearing cup (13) in
cover if these parts were previously removed.
4.
Place bearing (16) and shim (5) on end of cross shaft (4), and insert shaft
into housing.
5.
Install spacer (20), key (21), crown gear (7), shim (18), and bearing (13)
on opposite end of cross shaft.
6.
Place cover (12) over bearings (13) and secure into position using eight
cap screws (3). Torque cap screws to 39 N-m (29 lbs-ft).
MAN1256 (3/23/2018)
4.
Remove oil seals (11) (to be replaced) from both sides of cross shaft (4).
5.
Remove eight cap screws (3) from around gearbox cover (12) and
remove cross shaft (4) from gearbox.
6.
Disassemble shims (5 & 18), spacer (20), bearings (16 & 13), and crown
gear (7) from cross shaft.
7.
Support housing in a vise and remove bearing cones (16) by using a
punch and hammer to drive bearing cone out.
8.
Support cover (12) in a vise and remove bearing cups (13) by using a
punch and hammer to drive bearing cone out.
9.
Remove lock nut (2) from end of input shaft (14).
10.
Support input housing in a handpress and push input shaft (14) out of
housing.
11.
Support housing in a vise and remove bearing cups (13 & 16) by using a
punch and hammer to drive bearing cones out.
12.
Inspect gears for broken teeth and wear. Some wear is normal and will
show on loaded side. Forged gear surfaces are rough when new. Check
that wear pattern is smooth.
13.
Inspect input and cross shafts for grooves, nicks, or bumps in the areas
where the seals seat. Resurface any damage with emery cloth.
14.
Inspect housing and caps for cracks or damage.
Figure 21.
Center Gearbox Assembly
7.
Place seal (11) over cross shaft and press into housing. Use a round tube
the same diameter of the seal and a handpress. Repeat process on
opposite side of gearbox.
8.
Install new bearing cup (16 & 13) into input housing if these parts were
previously removed.
9.
Place bearing (16) over end of input shaft (14) and insert shaft into front
of input housing.
10.
Place seal (17) over shaft and press into housing. Use a round tube the
same diameter of the seal and a handpress.
11.
Install bearing (13), shim (18), pinion gear (8), key (10), shim (9) over
opposite end of input shaft (14).
12.
Secure parts together using lock nut (2). Tighten lock nut (2) until shaft
rolling torque is 0.3 to 1.0 N-m (3 to 9 lbs-inch).
13.
Insert input housing assembly into front of gearbox housing and align
teeth of the two gears. Secure with cap screws (3). Torque cap screws to
39 N-m (29 lbs-ft).
14.
Check gear backlash; it should be 0.15 to 0.43 mm (.006" to .017") at
outer tooth.
Dealer Service 24
1. Gearbox
2. Lock nut
3. M10 x 1.5 x 22 Cap screw
4. Cross shaft
5. Shim, 45.3 x 65.3 x 2.5
6. Vent plug
7. Crown gear
8. Pinion gear
9. Shim, 45.3 x 65.3 x 1
10. Key, 14 x 9 x 40
11. Seal
12. Cover
13. Bearing cup & cone
14. Input shaft
15. Housing, input
16. Bearing cup & cone
17. Seal
18. Shim kit
19. Plug, 3/8 NPT
20. Spacer
21. Key