Frame

SymptomProblemSolution

Machine will not lower.

Check tractor hitch.

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Machine frame raises or lowers slowly.

Low tractor hydraulic pressure.

Tractor standby pressure must be a minimum of 15,513 kPa (155.1 bar) (2250 psi).
 

Check tractor lift capacity against machine code.

Use lift-assist wheels on machine.
 

SCV flow rate mis-adjusted.

Adjust SCV flow control.
 

Rockshaft rate of drop set too slow.

Increase drop rate.

Machine will not raise.

Tractor SCV bypassing oil.

Readjust SCV lever linkage. See tractor operator’s manual.

Adjust vacuum blower rubber stop.

AG,OUO1011,3682-19-20060217