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Greensmaster 3100
Dual Point Adjust Cutting units
Page 10 - 9
Backlapping (Units with Optional Backlap/Variable Reel Speed Kit)
DANGER
TO AVOID PERSONAL INJURY OR DEATH:
D Never place hands or feet in the reel area
while the engine is running.
D While backlapping, the reels may stall and
then restart.
D Do not attempt to restart reels by hand or
foot.
D Do not adjust reels while the engine is
running.
D If a reel stalls, stop engine before
attempting to clear the reel.
D Reel motors are connected in series, moving
one motor moves the other two.
1. Position machine on a clean and level surface, low-
er cutting units, stop engine, engage parking brake, and
remove key from the ignition switch.
2. Move functional control lever to the Neutral/Backlap
position.
IMPORTANT: Do not attempt to rotate the direction-
al valve knob when the machine or reels are run-
ning.
3. Raise seat and rotate directional valve knob fully
clockwise to the backlap position.
4. Rotate flow control valve knob to position 6.
5. On all cutting units, make initial reel to bedknife ad-
justments appropriate for backlapping (see Bedknife to
Reel Adjustment in Cutting Unit Operator’s Manual).
6. Start engine and move Raise / Lower – Mow control
forward to start the reels.
7. Rotate flow control valve knob to position 1.
8. Apply lapping compound with a long handled brush
(see Special Tools).
CAUTION
Be careful when backlapping the reel because
contact with the reel or other moving parts can
result in personal injury.
1. Directional valve knob
2. Ball switch
3. Flow control valve knob
4. Hydraulic manifold
Figure 9
CLOCKWISE
1
2
3
4
9. To make an adjustment to the cutting units while
backlapping, turn reels OFF by moving the RAISE/
LOWER–MOW control to the RAISE position. Shut off
engine. After the adjustments have been completed, re-
peat steps 4 through 6.
10. When the backlap operation is completed, shut off
engine and rotate directional valve knob counter–clock-
wise fully (90_ from the backlap position) to forward
position. Also, rotate flow control valve knob to position
13 for height–of–cut settings of a 1/4 inch or below.
Note: For additional settings, refer to the instructions
on the decal that is located on the underside of the seat
support.
11. Wash all lapping compound off the cutting units.
12. For a better cutting edge, run a file across the front
face of the bedknife when the lapping operation is com-
pleted. This will remove any burrs or rough edges that
may have built up on the cutting edge.
Note: Additional instructions and procedures on
backlapping are available in the Toro Service Training
Book, Sharpening Reel and Rotary Mowers, part no.
80300SL.
Rev. D