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Dealer Service 27
MAN0670 (11/16/2007)
Figure 18. Gearbox Assembly (Cast/Crown Top Gearbox)
CROSSBAR REMOVAL
1. It is necessary to gain access to bottom side of
cutter for crossbar removal. See Blocking
Method, page 18.
NOTE: You will need to use either the puller screw
(Item 6, ) or a small hydraulic jack to remove the
crossbar.
2. To make crossbar removal easier, remove blades.
See Blade Removal, page 19.
3. Remove cotter pin, castle nut, and washer from
bottom of crossbar.
4. Attach a clevis (1) to each end of crossbar, using
blade pins, spacers, keyhole plates, and blade pin
clips. See Figure 19.
5. Position tube assembly (5) with threaded nut
toward crossbar for puller screw removal or down
for hydraulic jack removal.
6. For removal with puller screw, attach tube (5) to
each clevis with bolts (2) and nuts (3). Place pad
(4) in nut and thread puller screw (6) into nut from
bottom. Tighten until pad is solid against gearbox
shaft. For best results, strike head of puller screw
with a hammer while tightening with a wrench.
7. For removal with a jack, attach tube to each clevis
with puller links (7), bolts (2), and nuts (3). Place
jack on tube with end of jack pressing against
gearbox shaft. Slowly apply force with jack.
NOTE: Hydraulic jack will not operate if tipped
more than 90-degrees. Use care to prevent bend-
ing crossbar during removal.
1. Housing
2. Inspection cover
3. 22 Tooth gear
4. Input seal
5. Input shaft
6. Retaining ring
7. Gear spacer
8. Retaining ring
9. M18 x 1.5 Vent plug
10. Output gasket (0.30)
11. Output gasket (0.13)
12. Lock washer
13. M10 x 1.5 x 25 Cap screw
14. 1" - 14 Slotted flange nut
15. Cotter pin
16. Output seal
17. Output cap
18. Output bearing spacer
19. 15 Tooth output shaft & pinion
20. Ball bearing 208
21. Ball bearing 207
22. Sealing washer
23. Lock washer M8
24. M8 x 1.5 x 25 Cap screw
(Rev. 8/29/2011)