Owner Service
19
MAN1289 (10/18/2019)
Figure 12
. Jackstand Placement and Lubrication Points
BLADE SERVICING
Blade Removal
(Figure 13)
NOTICE
■
When sharpening blades, grind the same
amount on each blade to maintain balance.
Replace blades in pairs. Unbalanced blades will
cause excessive vibration, which can damage
gearbox bearings. Vibration may also cause struc-
tural cracks to cutter.
■
If blade pin is seized in crossbar, an extreme
force will be needed to remove it. Support crossbar
from below to prevent gearbox damage.
Figure 13
. Blade Assembly
1.
Disconnect driveline from tractor PTO.
2.
Raise cutter and block securely (see
Blocking
Method, Figure 12
).
3.
Align crossbar (2) with blade access hole in the
cutter frame. Remove cap screw, blade pin lock
clip, keyhole plate, and shims. Carefully drive pin
out of crossbar.
4.
Rotate crossbar (2) and repeat for opposite blade.
1. Driveline U-joint . . . . . . . . . .10 hrs
2. Telescoping shaft. . . . . . . . .10 hrs
3. Gearbox. . . . . . . . . . . . . . . .Daily
4. Tailwheel pivot tube . . . . . . .10 hrs
5. Tailwheel . . . . . . . . . . . . . . .10 hrs
6. Driveline shield . . . . . . . . . .10 hrs
7. Blade pin . . . . . . . . . . . . . . .40 hrs
X
= JACKSTAND PLACEMENT
1. Gearbox
2. Crossbar assembly
3. Washer (BB84.40
only)
4. Castle nut
5. Cotter pin
6. Blade
7. 1-1/2" blade pin
8. Shim 20 GA
9. Shim 18 GA
10. Shim 7 GA
11. Keyhole plate
12. Blade pin lock clip
13. 1/2 NC hex head cap screw
