Part of the Case Repair Manuals.
All 179 pages of this Case 445TA/M2, 667TA/M2, PX110, PX140, and PX170 Repair Manual (OEM #6-17670) zero in on one machine: your irrigation power unit, from fuel system through full engine overhaul. Inside: system diagrams tracing the lubricating circuit, cooling circuit, and boost feeding layout, plus a complete troubleshooting section for mechanical injection engines across all five models. You also get dense exploded views, step-by-step overhaul procedures for the cylinder unit, timing system, and output shaft, alongside torque tables and clearance data packed into the Overhaul and Technical Specifications section. Set piston-to-cylinder barrel clearance between 0.215 and 0.253 mm, then torque the camshaft retaining plate screws to 24 ± 4 Nm before buttoning it back up. Engine's on the stand and you need the right number. Download the PDF, search by keyword, jump by bookmark to any section, and stop guessing.
What's Inside This Case 445TA/M2-667TA/M2, PX110-PX170 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Specifications | 11-22 | Engine ID. Code, Specific Engine Code, Lubricating Circuit, Oil Vapour Recirculating System, Cooling Circuit System, Boost Feeding Diagram |
| Feed | 23-34 | Injection Feed System by Mechanical Rotary Pump, Feed Pump, Priming Pump, Fuel Filter, Injection Feed System by Mechanical Pump Unit |
| Duty - Industrial Application | 35-134 | Mechanical Injection Engines |
| Overhaul and Technical Specifications | 135-170 | General Specifications, Clearance Data, Engine Overhaul, Cylinder Unit, Timing System, Output Shaft |
| Tools | 171-174 | Crankshaft Rear Seal Puller, Tool for Rotating the Engine Flywheel, Crankshaft Rear Seal Installer, Crankshaft Front Seal Puller, Injector Puller |
| Appendix | 175-179 | Safety Prescriptions, Standard Safety Prescriptions, Prevention of Injury, During Maintenance, Respect of the Environment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Piston - cylinder barrels clearance | 0.215 to 0.253 mm | p. 138 |
| Camshaft longitudinal retaining plate screws torque | 24 ± 4 Nm (2.4 ± 0.4 kgm) | p. 170 |
| Compression ratio | 17:1 | p. 38 |
| Oil pressure (warm engine) - idling | 1.2 bar | p. 39 |
| Thermostat start of opening | 81 ± 2 ºC | p. 38 |
| Main bearing cap torque (1st stage) | 50 ± 6 Nm | p. 105 |
| Connecting rod bolts torque (1st stage) | 30 ± 3 Nm | p. 105 |
| Engine bore | 102 mm | p. 137 |
| Engine stroke | 120 mm | p. 137 |
| Injection pressure | 245 bar | p. 137 |
| 445TA/M2 (G) | ||
| 4-Cylinder Max. output (G) | 74 kW | p. 38 |
| 667TA/M2 | ||
| 6-Cylinder Max. torque | 660 Nm | p. 39 |
Case 445TA/M2-667TA/M2, PX110-PX170 Common Problems This Manual Covers
Case 445TA/M2 crankshaft rear unitized seal leaking oil around the seal area after rebuild p. 171
Inspect the seal area for improper installation using Case installer #380000664. Remove the old seal with the crankshaft rear seal puller from page 171. Clean the bore, then press the new unitized seal square to the block face. After reassembly, confirm oil pressure at idle reads at least 1.2 bar (page 39).
Manual Section: Overhaul and Technical SpecificationsPlate (2) assembled backwards or inverted during engine rebuild, cylinder unit misaligns on reassembly p. 170
Remove the timing cover and verify plate (2) orientation matches the diagram in the Overhaul section. Torque camshaft longitudinal retaining plate screws to 24 ± 4 Nm (2.4 ± 0.4 kgm) per page 170. Recheck timing marks before closing the cover. An inverted plate shifts injection timing and produces hard-start or misfire symptoms.
Manual Section: Overhaul and Technical SpecificationsEngine compression low after piston or ring service, ring gauge measurement skipped during assembly p. 138
Measure piston-to-cylinder barrel clearance with a ring gauge before assembly. Acceptable clearance is 0.215 to 0.253 mm per page 138. Verify bore diameter is 102 mm (page 137) before fitting new rings. If clearance is outside spec, hone or replace the barrel rather than reassembling with worn components.
Manual Section: Overhaul and Technical SpecificationsEngine won't crank to start speed or turns over too slowly in cold weather
Check battery connections for corrosion and verify charge holds under load. Inspect the K.K.S.B. cold-start device and fuel lines for wax or gel accumulation. Verify injection timing per the troubleshooting procedures. The 17:1 compression ratio leaves no margin for a weak battery or contaminated fuel in cold conditions.
Manual Section: Duty - Industrial ApplicationEngine temperature climbs past normal range with coolant boiling or steam at radiator cap p. 38
Check coolant level and inspect for fouling or scale buildup. Verify the thermostat opens at 81 ± 2°C and replace if it sticks closed. Inspect the water pump impeller and drive belt tension. If timing or injection pump calibration is suspect, start with the engine troubleshooting procedures.
Manual Section: Duty - Industrial ApplicationEngine puts out black or dark grey smoke under load, power noticeably drops p. 137
Inspect the air cleaner first; a clogged element restricts combustion air and richens the mixture. Confirm injector pressure is set to 245 bar (page 137). Check injection pump advance angle and look for excessive fuel delivery. Start the full diagnosis with the black smoke checklist in the troubleshooting section.
Manual Section: Duty - Industrial ApplicationFrequently Asked Questions
What are the torque specifications for CASE 445T/M2 head bolts and the tightening order?
The cylinder head bolts must be torqued using a stitching pattern, starting with the center bolts and moving outwards. The tightening is performed in stages: first, all bolts are torqued to snug torque, then rotated 90 degrees. For M12 x 140 and M12 x 180 bolts, a further 90-degree rotation is required. Specific torque values are: M12x70 at 50 Nm + 90º, M12x140 at 40 Nm + 180º, and M12x180 at 70 Nm + 180º.
How do you fix case 445TA/M2 crankshaft rear unitized seal leaking oil around the seal area after rebuild?
Inspect the seal area for improper installation using Case installer #380000664. Remove the old seal with the crankshaft rear seal puller from page 171. Clean the bore, then press the new unitized seal square to the block face. After reassembly, confirm oil pressure at idle reads at least 1.2 bar (page 39).
How do you fix plate (2) assembled backwards or inverted during engine rebuild, cylinder unit misaligns on reassembly?
Remove the timing cover and verify plate (2) orientation matches the diagram in the Overhaul section. Torque camshaft longitudinal retaining plate screws to 24 ± 4 Nm (2.4 ± 0.4 kgm) per page 170. Recheck timing marks before closing the cover. An inverted plate shifts injection timing and produces hard-start or misfire symptoms.
How do you fix engine compression low after piston or ring service, ring gauge measurement skipped during assembly?
Measure piston-to-cylinder barrel clearance with a ring gauge before assembly. Acceptable clearance is 0.215 to 0.253 mm per page 138. Verify bore diameter is 102 mm (page 137) before fitting new rings. If clearance is outside spec, hone or replace the barrel rather than reassembling with worn components.
How quickly can I access this manual after buying?
This is a 179-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.
Can I print specific sections of this Case 445TA/M2 & variants Repair Manual?
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.
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