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Owner Service 19
MAN0680 (11/30/2007)
BLADE SERVICE
Blade Removal
Figure 13. Blade Assembly
NOTICE
■ If blade pin (1) is seized in crossbar and
extreme force will be needed to remove it, support
crossbar from below to prevent gearbox damage.
1. Disconnect driveline from tractor PTO.
2. Raise cutter and block securely (see Figure 11).
3. Open blade access cover and align crossbar
assembly (3) with blade access hole in the cutter
frame. Remove cap screw (8) blade pin lock clip
(7) keyhole plate (6) and shims (5 & 4). Carefully
drive blade pin out of crossbar.
4. Rotate crossbar and repeat for opposite blade.
Blade Installation
Refer to Figure 13.
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
NOTICE
■ Crossbar rotation is counterclockwise when
looking down on cutter. Be sure to install blade cut-
ting edge to lead in counterclockwise rotation.
■ Always replace or sharpen both blades at the
same time.
1. Inspect blade pin (1) for nicks or gouges, and if you
find any, replace the blade pin.
2. Insert blade pin through the blade. Blade should
swivel on blade pin; if it doesn’t, determine the
cause and correct.
3. Align crossbar assembly (3) with blade access hole
in cutter frame. Apply a liberal coating of Never
Seez
®
or equivalent to blade pin and crossbar
hole. Make sure blade offset is away from cutter.
4. Insert blade pin (1) through blade. Push blade pin
through crossbar.
5. Install shims (4 & 5) over blade pin.
NOTE: Only use enough shims to allow keyhole
plate (6) to slide into blade pin groove.
6. Install blade clip (7) over keyhole plate and into
blade pin groove.
7. Secure into position with cap screw (8). Torque cap
screw to 85 lbs-ft.
8. Repeat steps for opposite side.
NOTE: Blade should be snug but should swivel on
pin without having to exert excessive force. Keep
any spacers not used in the installation as replace-
ments or for future installation.
1. Blade pin
2. Blade
3. Crossbar assembly
4. 18ga x 1-1/2 Shim
5. 20ga x 1-1/2 Shim
6. Key hole plate
7. Blade pin lock clip
8. 1/2 x 1-1/4 Cap screw GR5
CAUTION