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Greensmaster 3150
DPA Cutting Units
Page 7 -- 12
Service and Repairs
Backlapping
DANGER
TO AVOID PERSONAL INJURY OR DEATH:
D Never place hands or feet in the reel area
while the engine is run ning.
D When backlapping, run engine at idle speed
only.
D While backlapping, the reels may stall and
then restart.
D Donot attemptto restart reels byhand orfoot.
D Do not adjust reels while the eng ine is
running.
D If a reel stalls, stop engine before attempting
to clear the reel.
D Reel motors are connected in series: rotating
one moto r causes rotation in other motors.
NOTE: Additional instructions and procedures on
backlapping are available in the Toro General Service
Training Book, Reel Mower Basics (part no. 09168SL).
1. Position the machine on a level surface, lower the
cutting units, stop the engine and engage the p arking
brake.
2. Raise the operator seat to access hydraulic mow
manifold.
3. Locate the reel speed control and backlap lever on
the hydraulic mow manifold (Fig. 11). Rotate the reel
speed control to position “1” and the backlap lever to the
R (backlap) position.
4. Make initial reel to bedknife adjustments appropriate
for backlapping on all cutting units which are to be back-
lapped.
5. Start engine and run at low idle speed.
6. Use joystick on the control console to engage the
cutting units.
IMPORTANT: To prevent damage to the reel, do not
rotate the backlap lever from the backlap position to
the mow position while the engine is running.
7. Apply lapping compound to cutting unit blades with
a long handle brush (see Special Tools in this chapter)
(Fig. 12). Never use a short handled brush to apply lap-
ping compound.
1. Hydraulic manifold
2. Reel speed control
3. Backlap lever
Figure 11
1
2
3
Figure 12
1. Long Handle Brush
1
Reels may stall while backlapping. Do not
attempt to restart reels by hand or touch reels
while backlapping. Stop engine and turn reel
speed adjustment knob one position toward
”9.”
DANGER
8. If reels stall or become erratic while backlapping,
stop backlapping by disengaging the PTO with the joys-
tick. Once the reels have stopped, m ove the reel speed
selector knob one position closer to “9.” Resume back-
lapping by engaging the PTO with the joystick.