Cutting Unit Maintenance; Backlapping The Reels - Toro Greensmaster 3420 TriFlex Operator's Manual

Cutting Unit Maintenance

Backlapping the Reels

WARNING
Contact with the reels or other moving parts can
result in personal injury.
• Keep fingers, hands, and clothing away from the
reels or other moving parts.
• Never attempt to turn the reels by hand or foot
while the engine is running.
1. Position the machine on a level surface, lower the
cutting units, stop the engine, engage the parking brake.
2. Remove the plastic cover to the left side of the seat.
3. Make initial reel to bedknife adjustments appropriate
for backlapping on all cutting units which are to be
backlapped; refer to the Cutting Unit Operator's Manual.
4. Start the engine and run at low idle speed. If the engine
stalls, increase the engine speed.
5. Switch the Backlap Switch to the reverse (R) position
(Figure 57).
1
Figure 57
1. Backlap switch—reverse
position
6. On the InfoCenter pull up the Main Menu and scroll
down to Settings.
7. In the Settings menu scroll down to Backlap RPM and
use the ± button to select the desired backlap speed.
8. With the functional control lever in the neutral position,
move the Raise/Lower Mow control 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.
11. To make an adjustment to the cutting units while
backlapping, turn the reels off by moving the
2
G017943
2. Backlap switch—mow
position
Raise/Lower Mow control rearward and stop the
engine. After completing adjustments, repeat steps 4
through 9.
12. Repeat the procedure for all cutting units you want to
backlap.
13. When finished, return the backlap switch to the forward
(F) position, replace the cover, and wash all lapping
compound off of the cutting units. Adjust cutting unit
reel to bedknife as needed. Move the cutting unit reel
speed control to the desired mowing position.
Important: If the backlap switch is not returned
to the forward (F) position after backlapping, the
cutting units will not raise or function properly.
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