Part of the New Holland Repair Manuals.
Issued directly by the manufacturer under publication 87366591, this New Holland 445TA/M2, 667TA/M2 repair manual pdf provides 178 pages of authentic service data for your irrigation power units. The documentation walks through complete mechanical injection engine overhauls, covering both rotary and in-line pump teardowns. Detailed troubleshooting charts help isolate engine starting issues before the weather window closes, and extensive torque tables ensure every reassembly holds up under heavy load. Lock down the M12 x 70 cylinder head bolts to exactly 50 Nm plus 90 degrees, and verify your mechanical fuel pump oil fill hits exactly 0.45 liters. Nothing stalls an urgent field repair faster than tearing an engine apart without the right clearances in hand. Grab this bookmarked, text-searchable file to find those missing numbers fast so you can get the power unit running and put water back on the crop.
What's Inside This New Holland 445TA/M2, 667TA/M2 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-22 | Engine Identification Code, Specific Engine Code |
| Feed | 23-34 | Injection Feed System by Mechanical Rotary Pump, Injection Feed System by Mechanical Pump Unit |
| General Information and Mechanical Components Overview | 35-42 | Industrial Application Duty, Mechanical Components, Engine Setting Operations, Turning Stand Assembly |
| Overhaul of Engine with Mechanical Rotary Pump | 43-68 | Disassembly of Application Components, Rotary Feed Pump Procedure, Fuel System Bleed, Power Take-Off Disassembly, Completion of Engine |
| Overhaul of Engine with Mechanical In-Line Pump | 69-106 | Feed Pump Unit Disassembly, Fuel System Bleed, Power Take-Off, Tightening Torque Specifications |
| Electrical Equipment Layout and Troubleshooting | 107-124 | Electrical Component Layout, Sensors, Starter, Alternator, Troubleshooting, Engine Starting Issues, Engine Overheating |
| Maintenance Planning and Procedures | 125-134 | Maintenance Planning, Daily Checks, Engine Oil Level, Fuel Filter Replacement, Alternator Belt Replacement |
| Overhaul and Technical Specifications | 135-170 | Cylinder Unit, Output Shaft |
| Equipment | 171-174 | Tools |
| Installation Guidelines | 175-176 | Safety Prescriptions, Environmental Protection, Engine Disassembly, Engine Overhaul, Maintenance Planning |
| Safety Instructions | 177-178 | Standard Safety Prescriptions |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Oil fill quantity | 0.45 liters | p. 33 |
| Engine flywheel fixing screws | 1st phase: 30 ÷ 40 Nm, 2nd phase: 60º ± 5º angle dwell | p. 56 |
| Pulley fixing screws | 68 ± 7 Nm | p. 58 |
| Cylinder head bolts (M12 x 70) | 50 Nm + 90 deg's | p. 60 |
| Starter power | 3 kW | p. 110 |
| Starter voltage | 12V | p. 110 |
| Fuel pump gear (drive gear nut) torque | Snug torque 15-20 Nm, Final torque 85-90 Nm | p. 105 |
| Alternator rated voltage | 12 V | p. 112 |
| Alternator current delivered | 90A | p. 112 |
| Oil pan assembly torque | 24 ± 4 Nm | p. 105 |
| Crankshaft pulley torque | 110 ± 5 Nm | p. 106 |
| Fuel filter tightening torque | 5-10 Nm | p. 132 |
New Holland 445TA/M2, 667TA/M2 Common Problems This Manual Covers
New Holland 445TA/M2 starter clicking or turning engine over slowly during early morning watering.
Inspect the starting circuit and verify the 12V starter motor receives full voltage. If replacing the 3 kW unit, refer to the starter specifications on page 110. Clean all battery cable connections thoroughly before you try cranking it again to get the water flowing.
Manual Section: Electrical Equipment Layout and Troubleshooting p. 110Engine stalls under heavy pumping load or requires excessive cranking after sitting idle.
Drain water from the separator and install a new fuel filter. Tighten the replacement fuel filter to 5 to 10 Nm as shown on page 132. Bleed the fuel system completely to remove trapped air before attempting to restart the engine for the next irrigation cycle.
Manual Section: Maintenance Planning and Procedures p. 132Heavy engine oil seepage visible around the lower engine block and oil pan gasket area.
Drain the engine oil and remove the pan to inspect the mating surfaces. Clean off the old gasket material completely. Install a new gasket and torque the oil pan assembly bolts to 24 ± 4 Nm as specified on page 105. Refill with fresh oil.
Manual Section: Overhaul of Engine with Mechanical In-Line Pump p. 105Noticeable ticking noise from the cylinder head accompanied by a loss of power at the pump.
Remove the valve cover and check clearances on a cold engine. Set the intake valve clearance to 0.30 ± 0.05 mm using feeler gauges. Verify all adjustment specifications on page 130 before bolting the cover back on and returning the unit to the field.
Manual Section: Maintenance Planning and Procedures p. 130Frequently Asked Questions
What are the torque specifications for the cylinder head bolts on the 445TA/M2 and 667TA/M2 engines?
The cylinder head bolts must be torqued in stages. For M12x70 bolts, apply 50 Nm + 90 degrees; for M12x140 bolts, apply 40 Nm + 180 degrees; and for M12x180 bolts, apply 70 Nm + 180 degrees. p. 60
What are the starter motor replacement specs for a New Holland 445TA/M2, 667TA/M2 power unit?
The starter motor is a BOSCH unit rated 3 kW at 12V, listed in the electrical component layout specifications on page 110. p. 110
What is the correct intake and exhaust valve clearance for a New Holland 445TA/M2, 667TA/M2 power unit?
The working clearance for the intake valves is 0.30 ± 0.05 mm, and for the exhaust valves, it is 0.55 ± 0.05 mm. p. 61
What is the oil fill quantity for the feed pump?
The oil fill quantity for the feed pump is 0.45 liters of engine oil. p. 33
What is the injection pressure for the 4 and 6 cylinder New Holland 445TA/M2, 667TA/M2 engines?
The injection pressure for both the 4 and 6 cylinder engines is 245 bar. p. 137
How is this New Holland 445TA Repair Manual delivered?
A single searchable PDF file of 178 pages, downloadable right after payment. Nothing ships, nothing waits in the mail.
Is this New Holland 445TA Repair Manual printable?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
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