31
OPERATION
HEADER CONTROLS
WARNING: To avoid injury caused by unexpected movement of reel and/or conveyor, always
disengage the blue hydraulic circuit before shutting the engine off. Reel and conveyor will
move if engine is started with blue circuit engaged.
Blue Hydraulic Control Lever
– Engage blue hydraulic circuit before engaging the PTO or auxiliary pump.
The blue circuit provides oil for the reel and conveyor drives and supercharges the PTO mounted MacDon
pump if equipped. Set flow to 18 gallons per minute (except for Model 910 Series Headers set to 8 gpm). If a
flow meter is not available, set the flow as follows:
All except 910 Series Headers:
• Set reel and conveyor speed to maximum.
• Increase flow in blue circuit until reel and/or conveyors no longer increase in speed.
For 910 Series Headers only, set pressure (at operating temperature) to read 50 psi (345 kPa) at coupler with
yellow cable tie.
PTO Clutch (units with MacDon Header Drive Pump)
– After engaging the blue hydraulic circuit, engage the
PTO clutch to start the sickle drive.
IMPORTANT: To prevent damage to the pump, blue hydraulic circuit must be on before PTO is engaged.
Auxiliary Pump Switch (TV140 Tractors with New Holland Auxiliary Pump)
– After engaging the blue
hydraulic circuit, turn auxiliary pump switch to ON to start sickle drive.
IMPORTANT: Set flow to 25 gallons per minute. If a flow meter is not available, adjust flow until sickle drive
shaft speed is 1100 rpm, measured at the rear (driver) pulley inside left end sheet of header. Damage to sickle
drive motor seal may occur if flow is set too high.
Green Hydraulic Control Lever
- Controls the header lift on all header models.
Tan Hydraulic Control Lever
- Controls the reel lift on 942 and 970 Series header models.
Green and Tan Flow Control Dials
- Control the lift/lower rate of the header and reel respectively. Set to
operator preference. NOTE: If flow to green and tan circuits is set too high, blue circuit flow may be reduced.
See Tractor Operator’s Manual for location and operation of the above controls.
Reel Speed
- Press plus (+) side of switch (B) to increase reel speed and minus (-) side to decrease. See
header Operator’s Manual for speed range.
Conveyor Speed
- Press plus (+) side of
switch (C) to increase conveyor speed and
minus (-) side to decrease. See header
Operator’s Manual for speed range.
Deck Shift (970 Series Hydraulic Shift
Header Only) – Deck shift switch is installed
in location (D). See “Preparing the Tractor”.
Press left side of rocker switch (not shown) to
shift decks to the left and reverse draper
travel. Press right side of switch to shift decks
to the right and reverse draper travel. For
center delivery, move rocker to center
position.
REEL SPEED / CONVEYOR SPEED /
DECK SHIFT CONTROLS
B
D
C
(30 pages)
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