Assembly 31
29977 (Rev. 1/23/2009)
Side Drive Installation (Figure 23)
Figure 23. Side Drive Installation
Assemble inner drive assembly (3) into outer drive
assembly (5). Check to ensure drive shaft and U-joints
are indexed properly. The small pin on end of square
shaft should mate with outer drive for proper installa-
tion. Place offset plates of side drive assembly over
bearing block of inner drive assembly, and attach with
bolts (12) and lock nuts (11). Do not tighten hardware
at this time.
Install inner shear sleeve (14) into end of U-joint sleeve
and work snap ring (15) into groove to retain shear
sleeve (14).
Install inner drive (3) into gearbox on center section.
With keys in place in cutter head gearbox shaft, slide
outer drive onto shaft, align hole in inner shear sleeve,
gear shaft and U-joint sleeve and install hard shear pin
(17). Retain with cotter pin (16).
Attach drive joint support arms (23 & 6) to side drive
mounting points (1 & 4). Insert bolt (10) through hole in
mounting point (1), place sleeve (21) over bolt, and
install cup washers (20) with cups toward sleeve. Install
this assembly through support arm (2), apply Loctite) to
bolt, then install jam nut (19) and tighten. Secure with
nut (18).
Repeat this procedure for support arm (6), using bolt
(13).
Insert grease zerk into threaded hole on end cap of
drive shaft shield. For location, see page 36, item 99.
Tighten as required.
Side Shield Installation
Refer to parts drawing on page 36.
Install inner drive shield (49) over outside of plates on
outer drive (1). Tighten all hardware. Attach cylinder
and drive shield (26) with four self-tapping screws.
Install drive shaft shield (5) over end of drive shaft that
protrudes through the center section gearbox with self-
tapping screws.
Cutter Head Gearbox Shield Installation
Refer to page 38.
Remove four gearbox cover bolts. Place shield (34)
over gearbox and reinstall bolts.
Blade Installation
Raise cutter.
The cutter blades are shipped separately.
Remove bolt, spacer plug, keyhole plate and spacer
plates. Drop the blade pin out. Discard shipping spacer.
Install pin upward through blade. Be sure blade is right
side up. Reinstall pin. Replace spacers and keyhole
plate. If the fit is too tight, one of the thin spacers may
be removed. Reinstall spacer plug and bolt. It is not
necessary to torque the bolt excessively.
1. Side drive mounting point
2. Drive joint support arm
3. Inner side drive assembly
4. Side drive mounting point
5. Outer side drive assembly
6. Drive joint support arm
10. 5/8 x 2-1/4" Bolt
11. 1/2" Flanged hex lock nut
12. 1/2 x 5" Bolt
13. 5/8 x 3-1/2" Bolt
14. Inner shear sleeve
15. Snap ring
16. 1/8 x 1" Cotter pin
17. 7/16 x 3" Hard shear pin
18. 5/8" Hex nut
19. 5/8" Hex jam nut
20. Cup washer
21. 5/8 x 1 x 7/16" Sleeve
