215651
135
Revision B
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
Stand to the rear of the knife during removal to reduce the risk of injury from cutting edges. Wear heavy gloves when
handling the knife.
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 35
.
4.
Remove the knife. For instructions, refer to
5.5.3 Removing Knife, page 134
.
NOTE:
Because the bearing is being replaced, it is not necessary to wrap the knifehead to protect the bearing.
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Figure 5.26: Knifehead Bearing Assembly
5.
Use a flat-ended tool with the same diameter as pin (A).
Tap seal (B), bearing (C), plug (D), and O-ring (E) from the
underside of the knifehead.
NOTE:
Seal (B) can be replaced without removing the bearing.
When changing the seal, check the pin and needle bearing
for wear and replace if necessary.
5.5.5
Installing Knifehead Bearing
The knifehead bearing allows the knifehead pin to rotate within the knifehead as the drive arm strokes the knife back
and forth. To install the knifehead bearing, perform the recommended installation procedure provided here.
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Figure 5.27: Knifehead Bearing Assembly
1.
Place O-ring (E) and plug (D) into the knifehead.
2.
Use a flat-ended tool (A) with the same approximate
diameter as bearing (C), and push the bearing into the
knifehead until the top of the bearing is flush with the step
in the knifehead.
IMPORTANT:
Install the bearing with the stamped end (the end with the
identification markings) facing up.
3.
Install seal (B) into the knifehead with the lip facing
outwards.