Part of the Case IH Repair Manuals.
Your Magnum sits in the shed with slow steering, a PTO that won't pick up or an amber light on the dash, and the crop won't wait. This is the Case IH factory service manual for the Magnum 235, 260, 290, 315 and 340 Powershift tractors, PIN ZCRD02585 and above, CNH publication 47533563.
It starts at the 9.0 l engine and SCR exhaust treatment, then works through the 18 forward/4 reverse Powershift, dropbox, 4WD and both axles. After that come the PTO, brakes, remote hydraulics, three-point hitch, steering, cab and wiring. The electrical section carries the fault code troubleshooting, and at the back are a special tool index and fold-out electrical and hydraulic schematics.
At 9 p.m. it's just you and the tractor, with nobody to call. You buy this book once and it stays with this machine, so you can get back in the field.
What's Inside This Case IH Magnum 235–340 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction (Safety, Torque, Capacities) | 1-21 | Safety Rules, Basic Instructions, Minimum Tightening Torques, Capacities |
| Engine (10) | 22-199 | Engine and Crankcase, Cylinder Heads, Pump Drives, Air Cleaners and Lines, Fuel Tanks, Aftercooler, Engine Cooling System, Fan and Drive, Selective Catalytic Reduction (SCR) Exhaust Treatment |
| Drive Shaft and Powershift Transmission (19, 21.105-21.155) | 200-557 | Drive Shaft, Powershift Transmission Lubrication System, Powershift Transmission, External Controls, Internal Components |
| Dropbox and Four-Wheel Drive (4WD) System (21.200, 23) | 558-709 | Dropbox, 4WD Electro-Hydraulic Control, 4WD Drive Shaft |
| Front Axle System (25) | 710-1219 | Powered Front Axle, Front Bevel Gear Set and Differential, Final Drive Hub, Steering Knuckles and Shafts, Axle Suspension Control |
| Rear Axle System (27) | 1220-1357 | Powered Rear Axle, Rear Bevel Gear Set and Differential, Planetary and Final Drives |
| Power Take-Off (PTO) (31) | 1358-1573 | One-Speed Rear PTO, Two-Speed Rear PTO, Front PTO |
| Brakes and Controls (33) | 1574-1729 | Parking Brake or Parking Lock, Hydraulic Service Brakes, Trailer Brake Hydraulic Control, Trailer Brake Pneumatic Control |
| Hydraulic Systems (35) | 1730-1945 | Hydraulic Schematics, Pump Control Valves, Variable Displacement Pump, Three-Point Hitch Control Valve and Hydraulic Adjustment, Remote Control Valves, Reservoir, Cooler and Filters, Combination Pump Units |
| Pneumatic System and Hitches (36, 37) | 1946-1993 | Pneumatic System, Rear Three-Point Hitch, Front Hitch |
| Steering (41) | 1994-2035 | Steering Control, Hydraulic Control Components, Steering Pump |
| Cab Climate Control (50) | 2036-2175 | Heating, Air Conditioning, Cab Pressurizing System |
| Electrical Control Systems (55.012-55.050) | 2176-2269 | Engine Cooling, Engine Control, Transmission Control, Front and Rear Axle Control, HVAC Control Systems |
| Harnesses and Connectors (55.100) | 2270-3029 | Wire Harnesses, Electrical Schematic Frames, Connectors |
| Hitch Control, Starting, Charging, Lighting, Instruments and Modules (55.130-55.988) | 3030-3264 | Rear Three-Point Hitch Electronic Control System, Engine Starting System, Alternator, Battery, External Lighting, Switches and Relays, Warning Indicators, Alarms and Instruments, Cab Controls, Cab Lighting, Wiper and Washer System, Electronic Modules, SCR Electrical System |
| Fault Codes (DTC) | 3265-4465 | Fault Codes with Context, Cause, Possible Failure Modes and Solution Steps |
| Platform, Cab, Bodywork and Decals (90) | 4466-4619 | Engine Hood and Panels, Engine Shields, Hood Latches and Trims, Protections and Footboards, Pneumatically-Adjusted Operator Seat, Cab, Cab Interior, Cab Interior Trim and Panels |
| Special Tool Index and Fold-Out Schematics | 4620-4646 | Special Tool Index, Fold-Out Electrical Schematic Sheets, Fold-Out Hydraulic Schematic |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine oil with filter change, 9.0 l engine | 25 l (6.6 US gal) | p. 18 |
| Cooling system capacity | 26.5 l (7 US gal) | p. 18 |
| Transmission/hydraulic system capacity, Powershift | 172 l (45.5 US gal) | p. 18 |
| Fuel tank capacity | 636 l (168 US gal) | p. 18 |
| DEF/AdBlue tank capacity | 87 l (23 US gal) | p. 18 |
| Front axle differential, 4 pin 100 mm (4 in) hub standard axle | 11.8 l (12 US qt) | p. 18 |
| Powershift accumulator charge pressure (nitrogen) | 9.7 - 10.3 bar (141 - 150 psi) | p. 211 |
| Regulated pressure, priority regulator valve (PFC piston pump) | 22.4 - 24.5 bar (325 - 355 psi) | p. 1764 |
| Optional high flow PFC piston pump, maximum flow at 2000 engine RPM | 239 l/min (63 US gpm) | p. 1764 |
| Optional Twin Flow PFC piston pump, maximum flow at 2000 engine RPM | 124 l/min (32.7 US gpm) | p. 1765 |
| Steering pressure limit | 190 bar (2755 psi) | p. 1778 |
| Low pressure standby, minimum system pressure | 24.1 - 27.5 bar (350 - 400 psi) | p. 1813 |
| High pressure standby, signal relief valve | 210 bar (3050 psi) | p. 1814 |
| Maximum flow through a single remote (no steering) | 130 l/min (34.3 US gpm) | p. 1822 |
| Front axle support pin locking plate bolts, Dana heavy duty front axles | 90 - 107 Nm (66 - 79 lb ft) | p. 713 |
| Two-speed rear PTO manifold plate bolts | 51 - 58 Nm (38 - 43 lb ft) | p. 1519 |
Case IH Magnum 235–340 Common Problems This Manual Covers
Slow or sluggish steering
Start with steering relief pressure. The Steering (41) section covers testing and adjusting it, and the steering pressure limit is 190 bar (2755 psi). If relief pressure checks out, look for a stuck steering priority spool or a broken spring, then repair or replace the spool. If it's still slow, test hydraulic pressure and flow at the pump outlet. Also check the PFC piston pump high pressure standby setting under Hydraulic systems (35).
Manual Section: Steering - Hydraulic control components - Troubleshooting p. 2018PTO does not engage
The manual narrows it to four suspects: an electrical control circuit fault, the switch, the PTO valve or the PTO clutch. Test the control circuit, the switch and the valve first, using PTO clutch testing, Test 1. If those check out, disassemble the clutch using the Power Take-Off (PTO) (31) section. On a two-speed rear PTO, the manifold plate bolts go back at 51 - 58 Nm (38 - 43 lb ft).
Manual Section: Power Take-Off (PTO) - Power Take-Off (PTO) clutch - Troubleshooting p. 1436Differential lock does not engage
First check the tractor multi function (TMF) controller for active fault codes related to the differential lock. Then check the differential lock icon on the instrumentation. With the switch On, measure 12 V between pin 1 of connector X-158 and chassis ground. If the circuit is good, go to differential lock control solenoid testing. If the solenoid also tests good, the manual points to a mechanical clutch problem, and the differential has to come apart.
Manual Section: Electrical systems - Rear axle control system - Differential lock control solenoid - Troubleshooting p. 2230Low range clutch pressure loss after range transmission repair
If low range clutch pressure drops within the first 200 hours after a range transmission repair, suspect the rebuild. The range countershaft bearing may have gone in without the belleville spring compressed. The distributor hub or seal ring area may also have been damaged during the repair. Work through range countershaft disassembly in the Powershift transmission internal components section to find which one it is.
Manual Section: Transmission - Powershift transmission - Troubleshooting p. 302Frequently Asked Questions
What is the engine oil capacity on the Magnum 235-340 with a filter change?
The 9.0 l engine takes 25 l (6.6 US gal, 5.5 UK gal) with a filter change. The manual lists the same 25 l without a filter change. The same capacities page gives 26.5 l (7 US gal) for the cooling system and 172 l (45.5 US gal) for the Powershift transmission/hydraulic system. p. 18
What does the RESET key do when a Level 2 warning shows on the display?
It clears the warning text for 10 minutes, but the amber light stays on. Level 2 covers conditions that won't damage the tractor right away. If you leave them alone, they can grow into Level 1 critical faults. A Level 2 fault can also stop other systems from working. When one sets, the amber light flashes for 4 seconds, then stays on. RESET buys you time. It doesn't fix anything. p. 231
How do I clear fault code 3368, torque limitation due to a performance limiter?
Code 3368 means the ECU has put the engine in a limited performance state because of SCR inducement. Another fault code triggered it, so 3368 is not the root problem. Connect the Electronic Service Tool (EST), pull the additional fault codes and troubleshoot those first. After the root fault is repaired, turn the keyswitch OFF, then ON. Whether the fault and warning messages come back decides which of two healing processes you follow. One uses the EST engine restart counter reset/unlock inducement screen under the configuration icon. After that screen, leave the keyswitch off for at least 2 min. That sequence alone is a reason to own the book. p. 4132
What torque do the front axle support pin locking plate bolts take on the Magnum 235-340?
On Dana heavy duty front axles, the support pin locking plate bolts take 90 - 107 Nm (66 - 79 lb ft). This spec is for the Dana heavy duty axle, so check which axle is under your tractor before you torque the bolts. p. 713
What output do the optional high flow and Twin Flow hydraulic pumps deliver?
The optional high flow PFC piston pump delivers up to 239 l/min (63 US gpm) at its rated 2820 RPM, which is 2000 engine RPM. The optional Twin Flow PFC piston pump tops out at 124 l/min (32.7 US gpm). It feeds only the fourth, fifth or sixth remote sections. A single remote passes at most 130 l/min (34.3 US gpm) with no steering demand. The priority regulator valve holds regulated pressure at 22.4 - 24.5 bar (325 - 355 psi). p. 1764
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