Part of the Case IH Operator Manuals.
This 108-page Case IH DX21, DX24 Operator Manual (OEM #87300158) walks you through every dashboard indicator, control, and daily check on your Tractors before you ever turn the key. Open it and you get the full safety chapter, wiring diagrams for troubleshooting electrical faults, and hydraulic schematics that show exactly how your lift system routes fluid. A dedicated maintenance interval schedule and fluid capacity chart mean you're not guessing between the engine oil, H.S.T. system, and hydraulic filter service points. Set your hydraulic lift relief valve to 130 bar (1849 PSI) and swap that hydraulic oil filter at the first 50 hours, then every 300 after. No more flipping through a torn-up shop copy for the interval you half-remember. This PDF is bookmarked by section, so you jump straight from cover to the operation chapter, tablet in hand, and get back on the seat.
What's Inside This Case IH DX21, DX24, DX24 Tractors Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 8-19 | Personal Safety, Machine Safety, Safety Frame (ROPS), Safety Decals, Operating the Tractor, Servicing the Tractor |
| General Information | 20-23 | Minimum Hardware Tightening Torques, Inch Hardware and Locknuts, Metric Bolt Torque Specification, Identification Cap Screws and Carriage Bolts, Locknuts, Universal Symbols |
| Operation | 24-55 | Seat, Seat Belt, ROPS, Instrument Panel, Key Switch, Starting the Engine, Brake Controls, Parking Brake |
| Lubrication and Maintenance | 56-93 | Recommended Lubricants, Lubrication Fittings, Engine Oil |
| Specifications | 94-101 | - |
| Predelivery Service | 104-108 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic System Oil Filter Replacement Interval | First 50 hours, then every 300 hours | p. 70 |
| H.S.T. System Oil Filter Replacement Interval | First 50 hours, then every 300 hours | p. 70 |
| Diesel Fuel Filter Replacement Interval | First 50 hours, then every 200 operating hours | p. 63 |
| Diesel Fuel Filter Draining Interval | Every 100 hours of operation | p. 62 |
| Starting Motor Type | Solenoid Pre-Engaged Reduction | p. 95 |
| Alternator Amperage | 40 amps | p. 95 |
| Fan Belt Deflection | 10 mm-15 mm (7/16″-9/16″) with 9-11 kg (20-25 lbs.) thumb pressure | p. 73 |
| Engine Valve Clearance (Intake) | 0.20 mm (0.008″) | p. 94 |
| Engine Valve Clearance (Exhaust) | 0.20 mm (0.008″) | p. 94 |
| Clutch Type | 184 mm (7.25″) Dry Disc, Organic Face | p. 96 |
| Clutch Pedal Free-Travel | 19 mm-30 mm (3/4″-1-3/16″) | p. 96 |
| Fuel Tank Capacity | 20 liters | p. 94 |
Case IH DX21, DX24, DX24 Tractors Common Problems This Manual Covers
Case IH DX24 steering feels stiff and hard to turn during cold weather startup p. 69
Check the hydraulic fluid level before starting in cold weather; low or thickened fluid restricts power steering assist. Follow the lubrication interval on page 61 and confirm the transmission and hydraulic oil was changed within the last 300 hours as specified on page 69. Warm the engine at idle for several minutes before working the steering wheel under load.
Manual Section: Lubrication and MaintenanceStarter clicks repeatedly but engine won't crank when the key switch is turned p. 95
Check the battery terminals for corrosion and tighten every connection before troubleshooting further. Verify battery output meets the 450 CCA rating listed in the technical specifications on page 95. If terminals are clean and voltage still reads low, charge or replace the battery; a clicking starter with no crank almost always points to insufficient cranking amperage.
Manual Section: SpecificationsBattery charge warning light stays illuminated on the instrument panel while engine runs p. 73
Check fan belt deflection first; it should measure 10 mm-15 mm (7/16″-9/16″) under 9-11 kg (20-25 lbs.) thumb pressure per the specification on page 73. A loose or slipping belt keeps the alternator from reaching its rated 40 amp output. Inspect the wiring connections at the alternator for looseness or corrosion if belt tension checks out fine.
Manual Section: Lubrication and MaintenanceThree-point hitch lifts slowly and loader shows jerky, hesitant motion under load p. 70
Drain and replace the hydraulic oil if it has passed the 300 hour change interval listed on page 69, and swap the hydraulic filter per the schedule on page 70. Contaminated fluid is the most common cause of jerky lift motion. Verify the lift system relief valve is still holding its rated 130 bar (1849 PSI) setting from page 96 before adjusting linkage.
Manual Section: Lubrication and MaintenanceClutch pedal feels loose or clutch nut keeps backing off after adjustment p. 84
Measure clutch pedal free travel with a ruler; it should read 19 mm-30 mm (3/4″-1-3/16″) as specified on page 84. If travel falls outside this range or the adjusting nut has backed off, reset the linkage to spec and confirm the locknut is torqued down tight. Recheck free travel after the first hour of operation to confirm it holds.
Manual Section: Clutch Pedal AdjustmentCoolant temperature warning light flashes on the dashboard shortly after cold startup p. 95
Check coolant level in the radiator and overflow bottle before restarting the engine. Verify the radiator cap still holds its rated 0.9 bar (13 PSI) pressure as specified on page 95; a weak cap allows early boil-over and triggers the warning light. Let the engine cool completely before removing the cap to inspect the cooling system.
Manual Section: SpecificationsFrequently Asked Questions
What are the replacement specifications for hydraulic filters?
The hydraulic system oil filter should be replaced after the first 50 hours of operation, and then every 300 hours thereafter. The H.S.T. system oil filter also follows the same replacement schedule. Both are spin-on type oil filters.
What are the replacement specifications for fuel filters?
The diesel fuel filter should be changed after the first 50 hours of operation, then following every 200 operating hours thereafter. The procedure involves removing the sediment bowl and replacing the old element.
What is the engine oil capacity with a filter change for the Case IH DX21 and DX24 tractors?
For both Model DX21 and DX24 Hydrostatic/Gear tractors, the engine crankcase capacity with a filter change is 3.3 liters (3.5 U.S. qts.). The recommended oil types vary by ambient temperature, such as SAE 15W-40 for +10-120°F.
What is the specified valve clearance for the intake and exhaust valves on the Case IH DX21 and DX24 engines?
For both Model DX21 and DX24 Hydrostatic/Gear tractors, the cold valve clearance for both intake and exhaust is 0.20 mm (0.008″). This specification is crucial for proper engine operation.
What do I get after purchasing this Case IH DX21, DX24, DX24 Tractors manual?
Instant PDF download. You get the full 108-page searchable Operator Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Are there any print restrictions on this Case IH DX21, DX24, DX24 Tractors?
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.
Does this Case IH DX21, DX24, DX24 Tractors manual cover the hydraulic system?
A hydraulic system diagram for the Case IH DX21, DX24, DX24 Tractors is included.
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