Important: Do not raise the suspension to
the transport position when the reel motors
are in the holders in the machine frame.
Damage to the motors or wires could result.
If you must move the traction unit without
the cutting units installed, secure them to
the suspension arms using cable ties.
6. Open the latches on the suspension-arm bar of
the cutting unit you are removing ( Figure 53 ).
7. Disconnect the latches from the cutting-unit bar .
8. Roll the cutting unit out from under the
suspension arm.
9. Repeat steps 4 through 8 for the other cutting
units as required.
10. Connect the main-power connectors; refer to
Main-Power Connectors ( page 23 ) .
Checking the
Reel-to-Bedknife Contact
Each day before operating the machine, check the
reel-to-bedknife contact, regardless if the quality of cut
had previously been acceptable. There must be light
contact across the full length of the reel and bedknife;
refer to the cutting unit Operator ’ s Manual .
Before checking the reels, disconnect the main-power
connectors; refer to Main-Power Connectors ( page
23 ) . Connect them when nished.
Backlapping the Cutting
Units
W ARNING
Contact with the bedknives, reel blades, or
other moving parts can result in personal
injury .
• Keep your ngers, hands, and clothing
away from the bedknives, reel blades, or
moving parts.
• Never attempt to turn the reels by hand or
foot while the machine is running.
1. Park the machine on a level surface, lower the
cutting units, move the function-control switch to
the N EUTRAL position, engage the parking brake,
shut of f the machine, and remove the key .
2. Make initial reel-to-bedknife adjustments
appropriate for backlapping on all cutting units
that you want to backlap; refer to the cutting unit
Operator ’ s Manual.
3. Insert the key into the switch and turn on the
machine.
4. On the InfoCenter control, from the S ERVICE
menu, select B ACKLAP .
5. Set B ACKLAP to O N .
6. Pull up the Main Menu and scroll down to
Settings.
7. In the S ETTINGS menu scroll down to B ACKLAP
RPM and use the ± button to select the desired
backlap speed.
8. With the function-control switch in the N EUTRAL
position, move the lift/lower joystick forward
to start the backlapping operation on the
designated reels.
9. Apply lapping compound with a long handle
brush. Never use a short handled brush.
10. If the reels stall or become erratic while
backlapping, select a higher reel speed setting
until the speed stabilizes.
1 1. T o make an adjustment to the cutting units while
backlapping, turn the reels of f by moving the
lift/lower joystick rearward, then shut of f the
machine. After completing adjustments, repeat
steps 3 through 9 .
12. Repeat the procedure for all cutting units that
you want to backlap.
13. When nished, return the InfoCenter B ACKLAP
setting to O FF or turn the key to the O FF
position to return the machine to forward cutting
operation.
14. W ash all lapping compound of f of the cutting
units. Adjust the cutting unit reel to bedknife as
needed. Move the cutting-unit reel speed control
to the desired mowing position.
Important: Do not use high pressure water
to clean off the cutting units. Damage to the
bearings and seals may result.
52
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