Honey Bee Manufacturing Ltd.
Grain Belt Plus Header – Owner's Manual
Knife Speed Adjustment
If the knife speed, indicated on the in-cab readout, is
not correct (between 580 & 600 rpm), the pump
control arm, located on the main hydraulic pump,
will need to be adjusted.
1. Ensure the Pump Control Arm is set up with
all washers and spacers on the left side of
the rotation plate, as shown in Illustration
12-10: Pump Control Arm – Factory Setup.
2. Start the combine and run for a minute at
normal operating speed, Take note of the
knife speed on the in-cab readout.
3. Raise the header, shut down the engine, and
wait for all moving parts to come to a
complete stop before exiting the cab. Insert
the safety lock(s) on the header lift cylinders.
4. If the knife speed is too low, start moving
spacers and/or washers over to the right side
of the rotation plate. This will increase the
knife speed. One spacer is the same size as
5 washers, start by moving the 5 washers
over (Illustration 12-11: Washers Moved to
the Right.)
5. Restart the combine, operate the header at
normal working RPM, and observe the knife
speed on the in-cab readout.
6. If the speed is still too low, move additional
spacers over to the right side. If the speed is
too high move some washers back over to
the left side of the rotation plate.
7. Repeat until the in-cab knife speed readout
shows between 580 & 600 rpm.
Rev. 07 - 07/29/08
133
Illustration 12-10: Pump Control Arm –
Factory Setup
Washers & Spacers
Rotation Plate
Illustration 12-9: Pump Control Arm
Location
Pump Control Arm
Illustration 12-11: Washers Moved to
the Right.
Summary of Contents for Grain Belt Plus
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