B
en-68
Safety, Operation, & Maintenance Manual
MAINTENANCE
Lithium
BACKLAPPING AND GRINDING ________________________________________
To backlap:
1. Park the mower on a flat and level surface.
2. Enter Maintenance Mode. See Maintenance Mode on
page 29..
3. Press either of the orange buttons (AM or AN) on the
LDU until the BACKLAP ENABLE? screen is on the
LCD display. Press the black button (AL) to enter backlap
mode.
4. If reels are not lowered, the LOWER ALL ACTUATORS
will display on the LDU. Lower reels to the ground. Press-
ing any of the three buttons (AL, AM, or AN) with
LOWER ALL ACTUATORS on the display will cancel
backlap mode.
5. Use orange buttons (AM and AN) to adjust timer. Press
black button (AL) to start backlapping. Selected motors
will start rotating and horn will periodically chirp.
6. Turn mow switch (E) and desired reel switches (F, G, and
H) to ON position.
7. Adjust reel speed between 150 and 400 rpm using the
orange buttons (AM or AN).
8. Apply lapping compound with a long handle brush along
the entire length of the reel.
9. Continue lapping and at the same time make a fine
adjustment on the reel and bedknife until there is a uni-
form clearance along the full length of the cutting edges.
10. Exit backlap mode by allowing the timer to end, or press-
ing the black button (AL) to select QUIT.
11. Turn key switch to off position.
12. Carefully and thoroughly remove all lapping compound
from reel and bedknife before running the reel in forward
direction.
BACKLAP
ENABLE?
LOWER ALL
ACTUATORS
10 MINUTES
START
325 RPM 10 MIN
< QUIT >
BACKLAP
COMPLETE
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