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Summary of Contents for Yetter SEED JET II
- Page 1 SYSTEMS ONE SEED JET II CLOSED CENTER HYDRAULIC SYSTEM OPERATORS MANUAL & PARTS IDENTIFICATION YETTER MANUFACTURING CO. FOUNDED 1930 Colchester, IL 62326-0358 Toll free: 800/447-5777 309/776-3222 (Fax) Website: WWW.YETTERCO.COM E-mail: INFO@YETTERCO.COM...
- Page 2 WARRANTY POLICY Yetter Manufacturing warrants all products manufactured and sold by it against defects in material. This warranty being expressly limited to replacement at the factory of such parts or products as will appear to be defective after inspection. This warranty does not obligate the Company to bear cost of labor in replacement of parts.
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Page 3: Tractor Preparation
TRACTOR PREPARATION CLOSED CENTER HYDRAULIC SYSTEM TRACTOR HYDRAULIC SYSTEM REQUIREMENTS For proper operation your tractor hydraulic system must be able to pump 12 gallons per minute at a pressure of 1000 psi. The speed of the blower depends upon the hydraulic capability of the tractor it is attached to. Hydraulic remote outlet for blower drive motor The control lever for the outlet will need to be held in a continuous flow position (closed center system). - Page 4 SET UP Add oil to blower gear case. DO NOT OVERFILL Use non-detergent, high quality hydraulic or SAE 20 weight. 1. Attach the power unit to the frame. 2. Plumb hydraulic hoses. A. Connections are tight and no leaks. 3. Plumb air hoses. A.
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Page 5: Maintenance
MAINTENANCE CAUTION: Never clean, lubricate or adjust a machine that is in motion. Failure to heed may result in serious personal injury or death! DANGER: Inspect and replace worn or frayed hydraulic hoses. Keep all connections tight. Escaping hydraulic fluid under pressure can have sufficient force to penetrate skin and cause personal serious injury or death. -
Page 6: Operation
OPERATION CLOSED CENTER HYDRAULIC SYSTEM Tractor – Preparing The Hydraulics Do Not allow dust, dirt or other contaminants to get into the hydraulic system during installation. Prepare a remote hydraulic connecting point and be sure flow control is operational. Review operation of the detent position of the hydraulic control lever for the selected remote hydraulics. - Page 7 OPERATION CLOSED CENTER HYDRAULIC SYSTEM Operation of the Seed Jet hydraulic system requires continuous hydraulic oil flow. A selective control valve lever stop must be used to avoid damaging the pump motor seals when shutting off hydraulic oil flow. The stop will prevent the selective control valve lever from returning to the neutral position.
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Page 8: Parts Identification
PARTS IDENTIFICATION... - Page 9 PARTS IDENTIFICATION...
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Page 10: Troubleshooting
TROUBLESHOOTING Solution Problem Cause Switch pressure & return hoses. Check and install correctly. Hydraulic motor will not run. Pressure hose in return outlet. Repair tractor. Hydraulic check valves backwards. Insufficient tractor hydraulic pressure. Reconnect hoses. Incorrect hydraulic connections. Install lever stop in tractor console. SCV lever stop not installed. - Page 11 TROUBLESHOOTING Solution Problem Cause Recommend closed center or Blower speed is uneven. Operating with open center hydraulic system. load sensing system. Tractor oil filters are plugging. Service tractor hydraulic filters. Maintain adequate oil levels. Low hydraulic fluid level in tractor. Service tractor hydraulic system.
- Page 12 East, the South, the West and now north into Canada. We’re even getting orders from as far away as Australia and Africa. So, when you buy Yetter products . . .you’re buying a name that’s recognized. A name that’s known and respected. A name that’s become a part of American agriculture and has become synonymous with quality and satisfaction in the field of conservation tillage.
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