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Reel Drive, Lower Cutting Units
The MOW pedal is depressed to start reel drive opera-
tion, flow from one pump section passes through No. 3
spool section and out three lines, each leading to a lift
cylinder. This actuates the lift cylinders and lowers the
cutting units. Oil is returned to a three-way fitting on the
No. 1 spool section through lines on the top end of each
cylinder, where it passes through the valve section and
returns to the reservoir through the main return line.
When the cylinders complete their travel, oil flow from
the No. 3 spool section is then directed to the rear cutting
unit drive motor.
Greensmaster
®
3100 Page 4 - 9 Hydraulic Flow Diagrams
GR3100 WITH DANFOSS PUMP SHOWN.
MACHINES WITH PARKER PUMP USE
CENTER 3 PUMP SECTIONS FOR REEL
DRIVE CIRCUITS.
Rev. E