Need the Case IH 3309 service manual PDF that actually shows you how the machine comes apart and goes back together? This 118-page service manual (OEM #8-96760) covers your 3309 Mower Conditioner across four tabs: General, Electrical, Hydraulics, and Chassis. You get the complete light electrical circuit check procedure, hydraulic cylinder service for tongue positioning, header lift, and conditioning roll, and a Chassis section that walks through PTO shaft teardown, gear case rebuild, cutterbar service, disc drive unit overhaul, and both upper and lower conditioning roll procedures. Tab 1 puts torque specifications, general machine specifications, and a factory maintenance and lubrication schedule right at the front before you turn a wrench on anything else. Your machine is down. Bookmarked and keyword-searchable, this PDF opens on any device so you can pull up the right procedure before you walk back to the machine.
What's Inside This Case IH 3309, 3309 Mower Conditioner Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-19 | Safety Rules, Servicing, Transporting (Safety Warning Decals, Torque Specifications, General Machine Specifications, Maintenance and Lubrication) |
| Electrical | 20-25 | Checking Light Electrical Circuit |
| Hydraulics | 26-42 | Tongue Positioning Hydraulic Cylinder, Header Lift Hydraulic Cylinder, Conditioning Roll Hydraulic Cylinder |
| Drivetrain & Gear Case | 43-80 | Universal Joint, Clutch, Gear Case, Input Shaft, Upper Drive Shaft |
| Cutterbar & Conditioning Rolls | 81-118 | Cutterbar, Disc Drive Unit, Lower Conditioning Roll, Upper Conditioning Roll |
Case IH 3309, 3309 Mower Conditioner Common Problems This Manual Covers
Case IH 3309 mower conditioner hex shaft disconnects from the gearbox and the cutterbar disc won't turn
Inspect the cutterbar drive shaft connection to the gearbox. Remove the front drive shaft pin (part number ccb0002786) and check for shearing. Replace the damaged hex shaft and torque all mounting hardware to the specifications listed. Verify the PTO runs smoothly at 540 RPM.
Manual Section: Gear Case ServiceCutterbar assembly emits a heavy grinding noise followed by complete disc stoppage
Drain the gear case and inspect for metal shavings. Disassemble the disc drive unit to check for a broken internal shaft. Replace damaged cutterbar gearboxes and verify correct gear backlash. Tighten all chassis fasteners according to the torque specifications after 50 hours of operation.
Manual Section: Disc Drive Unit ServiceHeader lift hydraulic cylinder fails to hold system pressure and slowly drifts downward
Disassemble the header lift hydraulic cylinder to inspect the internal seals. Remove the rod assembly and check for scoring. Install a new seal kit and fill the system with approved hydraulic fluid. Cycle the cylinder at 2500 PSI to bleed air and check for external leaks.
Manual Section: Header Lift Hydraulic Cylinder ServiceSafety flashers fail to illuminate when testing the checking light electrical circuit
Verify the 7-pin connector is fully seated. Test the checking light electrical circuit for a solid 12V DC signal. Inspect the wiring harness for pinch points near the tongue positioning hydraulic cylinder. Clean ground connections and replace any blown fuses before testing the flashers again.
Manual Section: Electrical Circuit DiagnosticsFrequently Asked Questions
Torque specs for gearbox hub bolts on Case IH 3309?
For the Case IH 3309, specific torque values are provided for components related to the cutterbar and disc drive unit. When attaching the cutterbar to the gear case, use two 3/4" diameter bolts and torque them to 200 lb. ft. (271 N.m). For the disc drive unit, torque the cap-screws attaching the assembled bearing housing to the main housing to 25 lb. ft. (34 N.m), and the nut to 160 lb. ft. (217 N.m).
How to disassemble gearboxes on Case IH 3309 cutterbar?
To disassemble gearboxes on the Case IH 3309 cutterbar, refer to the detailed procedures for the "Gear Case" and "Disc Drive Unit" sections. The "Gear Case" disassembly begins on page 9003-3 (PDF page 59) and the "Disc Drive Unit" disassembly starts on page 9005-3 (PDF page 91). These sections provide step-by-step instructions with illustrations for component removal.
How to disassemble Case IH 3309 gearbox module
To disassemble gearbox modules on the Case IH 3309, consult the "Gear Case" and "Disc Drive Unit" sections of the service manual. The "Gear Case" disassembly procedure starts on page 9003-3 (PDF page 59), and the "Disc Drive Unit" disassembly begins on page 9005-3 (PDF page 91). These sections provide comprehensive, illustrated instructions for taking apart the respective gearbox modules.
How do you fix case IH 3309 mower conditioner hex shaft disconnects from the gearbox and the cutterbar disc won't turn?
Inspect the cutterbar drive shaft connection to the gearbox. Remove the front drive shaft pin (part number ccb0002786) and check for shearing. Replace the damaged hex shaft and torque all mounting hardware to the specifications listed. Verify the PTO runs smoothly at 540 RPM.
How quickly can I access this manual?
A 118-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Am I able to print pages from this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are there wiring harness diagrams in this Case IH 3309, 3309 Mower Conditioner?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
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