Control Pressure; Control Pressure Pump - Case IH AFX8010 Repair Manual

DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM

Control Pressure Pump

1. Fan Drive Output (rear pump)
2. Spreader and Rotary Air Screen Output (center
pump)
3. Control Pressure Output (front pump)
4. Supply From PTO Gearbox, (for pump 3)
5. Supply From Hydraulic Reservoir, (for pumps 1 and
2)
The gear pump assembly is mounted in the PTO
gearbox and incorporates three separate gear
pumps.
The Control Pressure pump, (pump 3, nearest
to the drive shaft), is supplied oil from the PTO
gearbox and all of its flow is returned to the PTO
gearbox. See specification page.
The Spreader/Rotary Air Screen Drive pump is
supplied oil from the hydraulic reservoir and
returns all of its flow back to the reservoir. See
specification page.
The Fan Drive pump is supplied oil from the
hydraulic reservoir and returns all of its flow
back to the reservoir. See specification page.
NOTE: If the seal was to leak between the front and
center pumps oil could transfer between reservoirs.
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