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PST transmission vent between engine and transmission yoke leaks oil
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Clogged transmission filter screen
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Clean screen
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IVT transmission external vent leaks oil
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Clogged transmission filter screen
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Clean screen
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Transmission warning displays
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Diagnostic trouble code has been stored
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See PTI or PTP codes in the Diagnostic Trouble Codes section
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PST Transmission skips gears
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No problem
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See Shifting the Transmission in Operating the Tractor section
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Transmission shifts slowly and tractor steers hard
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Cold oil
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See Transmission/Hydraulic System Warm-Up in Operating the Tractor section
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Transmission slips, shifts rough or abruptly (jerky)
after oil change
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Recalibrate transmission (PST only)
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See Changing Transmission/Hydraulic Oil in the Lubrication section
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Have dealer recalibrate
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See your John Deere dealer
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Transmission starts out too fast/slow
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No problem
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Start-up gear can be changed through the CommandCenter settings. See Shifting the PST Transmission in Operating the Tractor section. For IVT tractors, see Adjusting Set Speeds.
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If problem persists, see your John Deere Dealer
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