All 102 pages of this Case IH 8825 Operator Manual (OEM #9-29501) are built around one job: keeping your 8825 and 8825HP Windrower Tractor running right through every cutting season. Inside you get a full safety section covering header and reel safety stops, neutral safety lock procedures, and a daily checklist for every lubrication point and fluid level. Top off the fuel tank at 42 gallons (159 L) and confirm the hydraulic system holds 12 gallons (45 L) before season startup — both numbers are exactly where you need them. Every hour the machine sits costs money. Bookmarked by section and searchable by keyword, pull it up on your phone or tablet and get back to cutting.
What's Inside This Case IH 8825, 8825HP Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | 6-7 | Model, Dimensions and Weights, Tires, Engine, Electrical System, Hydraulic System |
| Serial Numbers | 8 | Model Number, Product Identification Number, Identification Number Plate |
| Checklist | 9-10 | Daily Checklist, Beginning Each Season Checklist, Lubrication Items |
| Safety Precautions | 11-18 | Safety Alert Symbol, Safety Decals, Header Safety Stop, Reel Safety Stop, Battery Safety, Neutral Safety Lock |
| General Information | 19-20 | Serial Number and Location, Replacement Parts, U.S. and Metric Units, Warnings |
| Description | 21-30 | General Information, Hydraulic System, Header Hydraulic System, Electrical System, Wiring Diagram, Air Condition System |
| Servicing | 31-47 | Service Checklist, Lubrication Information, Fuel System, Engine Oil System, Hydraulic System, Air Cleaning System |
| Preparation | 48 | During Service Check, During Lubrication, Fluid Levels |
| Operation | 49-62 | Operator's Instruments, Throttle Control Lever, Parking Brake Control Lever, Double Swath Operation, Header and Reel Lift Control, Steering |
| Maintenance | 63-90 | Drive Belt Care, Header Clutch Belt Adjustment, Drive Chain Adjustment, Wheel Bearing Adjustment, Parking Brake Adjustment, Steering Control Linkage Adjustment |
| Trouble Shooting | 91-93 | Excessive Roller Chain Wear, Excessive Drive Belt Wear, Engine Overheating, Windrower Side Drift, Foul Odor When Operating the Cab Air Conditioner, Reel Will Not Lift |
| Storage | 94-95 | End of Season Preparation, Cleaning, Antifreeze, Batteries, Fuel Filters, New Season Preparation |
| Extra Equipment | 96 | Rear View Mirror, Right Side, Radio Installation Kit, Travel Control Lever Assist Kit |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel Tank Capacity | 42 U.S. gallons (159 L) | p. 6 |
| Cooling System Capacity | 22 U.S. quarts (20.8 L) | p. 6 |
| Engine Oil Quantity (with filter change) | 11 U.S. quarts (10.5 L) | p. 7 |
| Hydraulic System Total Quantity | 12 U.S. gallons (45 L) | p. 7 |
| Chaincase Final Drive Quantity (each) | 4 quarts (3.8 L) | p. 7 |
| Drive Wheel Nut Torque | 200 LB.FT (271 N·m) | p. 6 |
| Rear Castor Wheel Bolt Torque | 120 LB.FT (165 N·m) | p. 6 |
Case IH 8825, 8825HP Common Problems This Manual Covers
Case IH 8825 engine temperature rising rapidly in dusty field conditions, overheat warning p. 91
Check the radiator core for crop debris and chaff packed between fins. Clean with compressed air blown from the engine side outward. Inspect the fan belt for slipping or glazing. Verify coolant level is full to the 22 U.S. quarts (20.8 L) system capacity. If airflow is restricted after cleaning, inspect the engine timing per the troubleshooting guide on page 91.
Manual Section: Trouble ShootingPickup drive belt slipping or losing power transfer under heavy windrow load p. 63
Inspect belt tension and sheave condition before the next run. Check for partially filled sheave grooves and uneven wear on belt edges. Confirm belt alignment is straight across all sheave faces. Review belt care procedures on page 63 and adjust header clutch belt tension per that section. Replace the belt if sheaves show glazing or the belt cross-section is worn flat.
Manual Section: MaintenanceReel does not lift when control is activated, stays in lowered position p. 91
Check that the hand-operated screw valve on the header and reel lift valve is fully open. A closed screw valve blocks hydraulic flow to the lift circuit completely. After opening the valve, test lift operation. If reel still does not respond, verify hydraulic fluid level is within range for the 12 U.S. gallon (45 L) total system capacity before suspecting the circuit further. See page 91 for the reel lift troubleshooting checklist.
Manual Section: Trouble ShootingWindrower drifts to one side during straight-line operation across the field p. 91
Stop on level ground and check tire pressure on both drive wheels. Unequal pressure is the first cause of side drift. Also inspect the header for dragging on one side, which pulls the machine off-line under load. Refer to the troubleshooting chart on page 91 for the drift diagnosis sequence. Correct tire pressure to the spec on page 6 before adjusting steering linkage.
Manual Section: Trouble ShootingFoul or musty smell coming from cab when air conditioner is turned on p. 91
Turn off the A/C and inspect the evaporator compartment for accumulated plant material, insects, or moisture buildup on the evaporator fins. Clear any debris with compressed air. If the odor persists after cleaning, the evaporator drain may be blocked. Run the fan on fresh-air mode for several minutes to dry the compartment before re-engaging cooling. See page 91 for the cab air conditioner troubleshooting entry.
Manual Section: Trouble ShootingExcessive roller chain wear or chain jumping off sprockets during operation p. 63
Check chain tension and sprocket alignment before the next shift. A chain that is too loose or misaligned wears rapidly and risks jumping under load. Follow the drive chain adjustment procedure on page 63 to set correct slack. Inspect sprocket teeth for hooked wear, which indicates the chain has been running loose. Lubricate per the daily checklist on page 9.
Manual Section: MaintenanceFrequently Asked Questions
What are the recommended service intervals?
The manual provides a service checklist with various intervals. Daily checks include the air restriction indicator and engine oil level. Every 50 hours, service points like engine oil and hydraulic oil levels are checked. Longer intervals include 250 hours for engine oil and filter, 500 hours for fuel filters, and 1000 hours for engine valves. Annually, the hydraulic reservoir breather is serviced, and tire pressure is checked as required.
What fluids and capacities does this machine require?
The machine requires specific fluids and capacities. The cooling system capacity is 22 U.S. Quarts (20.8 L), and the fuel tank capacity is 42 U.S. gallons (159 L). The hydraulic system has a total quantity of 12 U.S. gallons (45 L) and uses Case IH Hy-Tran Plus oil. The engine requires Case IH No. 1 Engine Oil, and the air conditioning system capacity is 4.1 LBS (2.0 kg).
What are the hydraulic system specifications?
The hydraulic system specifications include a relief pressure of 5500 psi (37 921 kPa) and a header and reel lift relief pressure of 2000 psi (13 790 kPa). The charge pump is nominally rated at 14.5 gpm (54.9 L/min) when operating at rated engine speed.
What torque specifications are listed?
Various torque specifications are provided throughout the manual. Wheel nut torque is 200 LB.FT (271 N.m) and wheel bolt torque is 120 LB.FT (165 N.m). Cap screws for the axle housing should be tightened to 44 LB-FT (59 N.m), while upper access cover cap screws are 17 LB-FT (24 N.m). The header drive belt jackshaft nut should be tightened to 150 LB-FT (205 N·m). A detailed table for Grade 5 Plated Hardware lists torque values from 17 LB·FT (24 N·m) for 5/16-18 bolts to 645 LB·FT (875 N·m) for 1-8 bolts.
How will I receive this manual?
This is a 96-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this manual printable?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Are hydraulic system diagrams included in this manual?
A hydraulic system diagram is included.
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