Toro 5 Operator's Manual page 18

Maintenance
POTENTIAL HAZARD
Changing engine speed while backlapping
may cause reels to stall.
WHAT CAN HAPPEN
Reels may restart. Contact with rotating
reels will cause serious injury.
HOW TO AVOID THE HAZARD
Never place hands or feet in reel area while
engine is running.
Never change engine speed while
backlapping.
Only backlap at idle engine speed.
Never attempt to turn reels by hand or foot
while engine is running.
6. Select either front, rear, or both backlap knobs to
determine which reels will be backlapped.
7. Move Enable/Disable switch to Enable position.
Move Lower Mow/Lift control forward to start
backlapping operation on designated reels.
8. Apply lapping compound with a long handle
brush (Toro Part No. 29–9100). Never use a
short handled brush (Fig. 15).
1
Figure 15
1. Long handle brush
9. If reels stall or become erratic while
backlapping, stop backlapping by moving the
Lower Mow/Lift control lever rearward. Once
the reels have stopped, move the desired reel
16
speed selector knob(s) one position closer to
"13." Resume backlapping by moving the
Lower Mow/Lift control lever forward.
10. To make an adjustment to the cutting units while
backlapping, turn reels OFF by moving the
Lower Mow/Raise lever rearward; move the
Enable/Disable switch to Disable and turn the
engine OFF. After adjustments have been
completed, repeat steps 5–9.
11. Backlap until the reels can cut paper.
Note: When the cutting unit is adequately
sharpened, a burr will form on the
front edge of the knife. Using a file,
carefully remove the burr without
dulling the cutting edge (Fig. 16).
Figure 16
12. Repeat procedure for all cutting units to be
backlapped.
13. When backlap operation has been completed,
return the backlap knobs to the forward flow
position, lower seat and wash all lapping
compound off cutting units. Adjust cutting unit
reel to bedknife as needed.
IMPORTANT: If the backlap knobs are not
returned to the forward flow position after
backlapping, the cutting units will not raise
or function properly.