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3PYP
Adjustments
55
2018-07-24
401-312M
Cart Weight Transfer
On s/n planters, some of the cart weight can
be transferred to the mainframe by retraction of the
lift-assist cylinders, with a weight-transfer pin in place.
This operating mode is compatible with wing-lock,
wing-flex and hydraulic down-pressure planters.
1.
Disconnect the 3-point top link.
2.
Install the lift-assist weight-transfer pins
. The pins
are stored in a plate behind the cart parallel arm
pivot weldment. Install them in the large holes at the
bottom of the rod-end lug in the frame-to-cart parallel
arms.
3.
Remove the lift-assist shear bolts from the small
holes
below the lift-assist rod-end lug upper pivot
pins. Store the bolts in the plates behind the cart
parallel arm pivot weldments.
4.
Fully retract the lift-assist cylinders when lowering
the planter in the field.
Priority Flow Hydraulic Systems
On some tractors with load-sensing hydraulics, the
tractor remote circuit #1 is capable of taking nearly
100 percent of available hydraulic flow. Operating the
openers or markers on circuit #1 will starve the other
circuit, making one function inoperable.
To operate markers and constant opener down pressure
at the same time, connect the lift assist to circuit #2 and
the markers to circuit #3.
Figure 58
Weight Transfer Pin
29201
1
2
On some tractors with very positive remote hydraulic
checks, a slight increase in the reading on the
pressure gauges may occur after the tractor remote
lever is returned to neutral. This is caused by back
pressure on the opener cylinders and may be ignored.
The NET OPERATING PRESSURE on the opener
cylinders is maintained at the pressure you selected
while the tractor remote lever was held forward–not at
the “apparently increased” pressure. Reactivating the
tractor lever forward confirms this.
Содержание Yield-Pro 3PYP
Страница 188: ...Cover Table of Contents Cover Table of Contents ...
Страница 189: ...Table of Contents Index Table of Contents Index ...
Страница 190: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 ...