MAC215990
320
Revision A
Replacing Pointed Knife Guards
Guards become dull and need to be replaced. This procedure is for replacing standard guards and the special (drive side)
guards closest to the knife drive motor.
DANGER
To prevent bodily injury or death from the unexpected start-up of the machine, always stop the engine and remove the
key from the ignition before making adjustments to the machine.
WARNING
To prevent bodily injury from the fall of a raised reel, always engage the reel safety props before going under the
raised reel for any reason.
WARNING
Wear heavy gloves when working around or handling knives.
IMPORTANT:
When replacing pointed knife guards, ensure the hold-down sequence is correct for your header type and width. For more
information, refer to
4.8.7 Pointed Knife Guards and Hold-Downs, page 312
NOTE:
A Four-Point Guard kit can be used to replace knife guards. They are ideal for use in rocky conditions, or for harvesting
shatter-prone crops such as lentils. Refer to the header parts catalog for more information.
1028417
1
2
3
4
5
Figure 4.138: Drive Side Pointed Knife Guards
IMPORTANT:
Single and double-knife headers:
On both ends of the header,
position 1 (outboard guard) is a short knife guard. On the drive
side(s) of the header, positions 2, 3, and 4 are pointed end knife
guards (without wear bar). Starting at position 5, the remaining
guards are pointed knife guards. Ensure that the proper
replacement guards are installed at these locations.
IMPORTANT:
Double-knife headers:
A pointed center knife guard is installed
where the two knives overlap. The pointed center knife guard
has a slightly different replacement procedure. For instructions,
refer to
Replacing Pointed Center Knife Guard
1.
Raise the reel fully.
2.
Shut down the engine, and remove the key from the ignition.
3.
Engage the reel safety props. For instructions, refer to
Engaging Reel Safety Props, page 37
.
4.
Open the endshield. For instructions, refer to
Opening Header Endshields, page 39
5.
Rotate the flywheel attached to the knife drive box to manually stroke the knife until the knife sections are spaced
midway between the guards.
6.
Close the endshield. For instructions, refer to
