Operator's Manual

14
Backlapping
Danger
While backlapping, reels may stall and then not
restart.
Contact with the reel blades can cause personal
injury or death.
• Never place hands or feet in reel area while
engine is running.
• Do not attempt to restart reels by hand or foot.
• Do not adjust reels while engine is running.
• If reel stalls, stop engine before attempting to
clear reel.
1. Position machine on a clean, level surface, lower the
cutting units, stop the engine, engage parking brake
and remove key from ignition switch.
2. Rotate backlap knob, to backlap position. Rotate reel
speed knob to position 1.
3. Make initial reel to bedknife adjustments appropriate
for backlapping on all cutting units. Start engine and
set engine to low idle speed.
4. Engage reels.
5. Apply lapping compound with long handled brush.
6. To make an adjustment to the cutting units while
backlapping, turn reels and engine OFF. After
adjustments have been completed, repeat steps 4–6.
7. When backlap operation is completed, rotate backlap
knob to MOW position, set reel speed control to
desired mowing setting and wash all lapping
compound off cutting units.
Note: Additional instructions and procedures on
Backlapping are available in the Toro Sharpening Reel &
Rotary Mowers Manual, Form No. 80-300SL.
Note: For a better cutting edge, run a file across the front
face of the bedknife when the lapping operation is
completed. This will remove any burrs or rough edges that
may have built up on the cutting edge.
SPA (Single Point Adjustment)
Spring Adjustment
If single point adjustment assembly (Fig. 17) is
removed for servicing, make sure spring is
compressed, between washers, to a length of .86” (22
mm). This adjustment is attained by tightening nut on
SPA knob shaft.
Note: SPA assembly has left-handed threads.
1
2
.86 (22mm)
Between
Washers
Figure 17
1. Single point adjust
assembly
2. Adjusting nut