TM
Model 3700
M0275-01
Machine Operation
Rev. 10/18
2-31
Marker hydraulic system includes two flow control valves. One
flow control valve sets lowering speed and one sets raising
speed of both markers. Flow controls determine amount of oil
flow restriction through valves, varying marker travel speed.
Loosen jam nut and turn control clockwise, or IN to slow travel
speed. Turn counterclockwise, or OUT to increase travel speed.
Tighten jam nut after adjustments are complete.
NOTE: Tractors with flow control valves. Make row marker
speed adjustment with tractor flow controls in maximum
position. After row marker speed is set, adjust tractor flow
controls to allow hydraulic control to stay in detent during
marker raise or lower cycle.
NOTE: Hydraulics operate slowly when oil is cold. Make all adjustments with oil warm.
NOTE: On a tractor where oil flow cannot be controlled, tractor flow rate may be greater than rate marker
cylinder can accept. Hold tractor hydraulic control lever until cylinder reaches end of its stroke. This occurs
most often on tractors with an open center hydraulic system.
ROW MARKER SPEED ADJUSTMENT
Row marker speed control adjustment
Lower
Raise
Excessive row marker travel speed can
damage row markers. Adjust flow controls
before row markers are first used.
NOTICE
Summary of Contents for 3700
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