New Holland TV145 Repair Manual

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Description

General Information

Engine - 7.5L

Engine - Fuel System

Engine - Air Induction System

Engine - Exhaust System

Engine - Cooling System

Engine - Engine Removal

Transmissions - General Information, Specifications

and Splitter Box Operation

Transmissions - Drivelines

Transmissions - Auxiliary Pump Drive

Transmissions - Splitter Box Removal, Disassembly

and Assembly

Transmissions - Auxiliary Hydraulic Pump

Transmissions - Hydrostatic Drive

Transmissions - Hydrostatic Motor, Pump and Control

Cables

Engine-End Axle

Cab-End Axle

PTO - Cab End

PTO - Engine End

Brakes

Hydraulic Systems - Hydraulics and Steering

Hydraulic Systems - Cab End Hitch

Hydraulic Systems - Engine End Hitch

Wheels and Tires

87049447

TV145 Tractor

Repair Manual 87038775

Complete Table of Contents

Book

Section

Number

87038777

87049448

87049449

87049450

87038779

87049451

Issued 9-03 (Revised 6-04)

Chapter

Number

Table of Contents

Summary of Contents for New Holland TV145

Page 1 TV145 Tractor Repair Manual 87038775 Complete Table of Contents Book Section Chapter Description Number Number Number General Information 87038777 Engine - 7.5L 87038777 Engine - Fuel System 87038777 Engine - Air Induction System 87049448 Engine - Exhaust System 87049448 Engine - Cooling System...
Page 2 TV145 Tractor Book Section Chapter Description Number Number Number Ballasting 87049451 Frames 87049451 Climate Control 87038780 Electrical System 87038780 Accessories 87038781 Cab - General Information 87038781 Cab - Removal and Installation 87038781 Cab - Exterior 87038781 Cab - Interior 87038781...
Page 3 TV145 Tractor Repair Manual Table of Contents Section Chapter Description Number Number General Information Engine - 7.5L Engine - Fuel System 87038777 © 2003 Issued 9-03 Find manuals at https://best-manuals.com...
Page 4: Table Of Contents
SECTION 00 – GENERAL INFORMATION SECTION 00 - GENERAL INFORMATION CONTENTS Section Description Page 00 000 Precautionary Statements ............Safety Precautions .
Page 5 All data and illustrations in this manual are subject to variations in build specification. This information was Appropriate service methods and correct repair correct at the time of issue, but New Holland policy procedures are essential for the safe, reliable is one of continuous improvement, and, the right to...
Page 6: Precautionary Statements
SECTION 00 – GENERAL INFORMATION PRECAUTIONARY STATEMENTS SAFETY PRECAUTIONS Practically all service work involves the need to drive PERSONAL SAFETY the tractor. The operator’s manual, supplied with each Throughout this manual and on machine decals, you tractor, contains detailed safety precautions relating to will find precautionary statements (“DANGER”, driving, operating, and servicing that tractor.
Page 7 SECTION 00 – GENERAL INFORMATION Hand Protection Compressed Air It is advisable to use a protective cream before work The pressure from a compressed-air line often to prevent irritation and skin contamination. After exceeds 100 PSI (690 kPa). It is perfectly safe if used work clean your hands with soap and water.
Page 8: General Considerations
SECTION 00 – GENERAL INFORMATION GENERAL CONSIDERATIONS OPERATIONAL CONSIDERATIONS Stop the engine, if at all possible, before performing Solvents any service. Use cleaning fluids and solvents that are known to be safe. Certain types of fluids can cause damage to Place a warning sign on tractors which, due to service components, such as seals, and can cause skin or overhaul, would be dangerous to start.
Page 9 SECTION 00 – GENERAL INFORMATION WARNING The list is not inclusive; all operations, procedures, and handling of materials should be carried out with Do not use your hand to check for leaks. Use a health and safety in mind. piece of cardboard or paper to search for leaks. Stop the engine and relieve pressure before ACIDS AND ALKALIS (SEE BATTERY ACIDS, connecting or disconnecting lines.
Page 10 SECTION 00 – GENERAL INFORMATION Anaerobic Cyanoacrylate and other Acrylic (North America Only) Adhesives CALIFORNIA Many are irritating, sensitizing, or harmful to the skin. Some are eye irritants. Proposition 65 Warning Battery posts, terminals and related Skin and eye contact should be avoided and the accessories contain lead and lead manufacturer’s instructions followed.
Page 11 SECTION 00 – GENERAL INFORMATION CLUTCH LININGS AND PADS (SEE BRAKE Do not apply heat or flame to chemical materials, except under the manufacturer’s instructions. Some AND CLUTCH LININGS AND PADS) are highly flammable, and some may release toxic or CORROSION PROTECTION MATERIALS harmful fumes.
Page 12 SECTION 00 – GENERAL INFORMATION In Cases of Electrocution: Have a suitable fire extinguisher available when using welding or heating equipment. • Switch off electricity before approaching victim. • If this is not possible, push or drag the victim from FIRST AID the source of electricity using dry non-conductive Apart from meeting any legal requirements, it is...
Page 13 SECTION 00 – GENERAL INFORMATION FUELS (SEE FIRE, LEGAL ASPECTS, Diesel Fuel (Gas-Oil) (See Fuels-Kerosene) CHEMICALS - GENERAL, SOLVENTS) CAUTION Used as fuels and cleaning agents. Combustible. Gasoline (Petrol) Gross or prolonged skin contact with high boiling gas CAUTION oils may cause serious skin disorders, including skin cancer.
Page 14 SECTION 00 – GENERAL INFORMATION GLUES (SEE ADHESIVE AND SEALERS) NOISE INSULATION MATERIAL (SEE FOAMS, FIBRE INSULATION) HIGH-PRESSURE AIR, LUBRICATION AND OIL TEST EQUIPMENT PAINTS (SEE SOLVENTS AND CHEMICAL (SEE LUBRICANTS AND GREASES) MATERIALS- GENERAL) Always keep high-pressure equipment in good CAUTION condition and regularly maintained, particularly joint Highly flammable.
Page 15: Tractor Identification
SECTION 00 – GENERAL INFORMATION IDENTIFICATION NUMBERS TRACTOR IDENTIFICATION DATA The tractor and its major components are identified using serial numbers and/or manufacturing codes. NOTE: The tractor identification data must be supplied to the dealer when requesting parts or service. Identification data is also needed to aid in identifying the tractor if it is ever stolen.
Page 16 410 = Number code for location of feed pump and governor R = Rotation of pump as seen from drive end (right hand = clockwise) S2835 = Application number (indicates what model New Holland tractor this is used on) 00-13...
Page 17 SECTION 00 – GENERAL INFORMATION STARTER MOTOR IDENTIFICATION The serial number and starter information are on the plate (1) on the starter housing. REAR AXLE IDENTIFICATION The serial number (1) is stamped on the left side of the PTO boss on the rear axle housing. CAB IDENTIFICATION The serial number is on the certification plate (1) on the rear crossbar.
Page 18: Service Techniques
SECTION 00 – GENERAL INFORMATION SERVICE TECHNIQUES position before tightening the connection. Clamps should be tightened sufficiently to hold the hose GENERAL without crushing and to prevent chafing. Clean the exterior of all components before carrying After hose replacement to a moving component, out any form of repair.
Page 19: Minimum Hardware Tightening Torques
SECTION 00 – GENERAL INFORMATION MINIMUM HARDWARE TIGHTENING TORQUES IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS INCH HARDWARE AND LOCKNUTS SAE GRADE 2 SAE GRADE 5 SAE GRADE 8 LOCKNUTS NOMINAL UNPLATED PLATED UNPLATED PLATED UNPLATED PLATED GR.B GR.C NOMINAL SIZE W/ZnCr...
Page 20 SECTION 00 – GENERAL INFORMATION MINIMUM HARDWARE TIGHTENING TORQUES IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS METRIC HARDWARE AND LOCKNUTS CLASS 5.8 CLASS 8.8 CLASS 10.9 LOCKNUT NOMINAL CL.8 SIZE UNPLATED PLATED UNPLATED PLATED UNPLATED PLATED W/CL8.8 W/ZnCr W/ZnCr W/ZnCr BOLT 15* (1.7)
Page 21: Standard Torque Data
SECTION 00 – GENERAL INFORMATION INSTALLATION OF ADJUSTABLE FITTINGS IN STRAIGHT THREAD O RING BOSSES 1. Lubricate the O ring by coating it with a light oil or petroleum. Install the O ring in the groove adjacent to the metal backup washer which is assembled at the extreme end of the groove (4) 2.
Page 22 O-ring will not seal properly. If the fitting surfaces are not properly aligned, the fittings may be damaged and will not seal properly. 50011183 IMPORTANT: Always use genuine New Holland replacement oils and filters to ensure proper lubrication and filtration of engine and hydraulic system oils.
Page 23: Recommended Lubricants And Coolants
The use of proper fuels, oils, grease and filters, as well as keeping the systems clean, will also extend machine and component life. IMPORTANT: Always use genuine New Holland replacement parts, oils and filters to ensure proper operation, filtration of engine and hydraulic systems. See your New Holland dealer for additional oil quantities.
Page 24 The use of proper fuels, oils, grease and filters, as well as keeping the systems clean, will also extend machine and component life. IMPORTANT: Always use genuine New Holland replacement parts, oils and filters to ensure proper operation, filtration of engine and hydraulic systems. See your New Holland dealer for oil quantities.
Page 25: Recommended Sealants
SECTION 00 – GENERAL INFORMATION RECOMMENDED SEALANTS (North America Only) SEALANTS Description Part Number Typical Applications Strength Color Thread Lock L22200 (222) Small screws/hardware Purple L24231 (242) Small screws/hardware Medium Blue L29000 (290) Wicking Type Medium Green L26231 (262) Nuts & Bolts High Thread Sealant L54531 (545)
Page 26 SECTION 10 – ENGINE – CHAPTER 1 SECTION 10 – ENGINE Chapter 1 – 7.5L CNH Engine CONTENTS Description Page Specifications ................Greases and Sealants .
Page 27 SECTION 10 – ENGINE – CHAPTER 1 SPECIFICATIONS Engine Make Engine Type In–Line 6 Cylinder, Turbo Charged and Intercooled Gross power 114 kW (153 Bhp) (ISO TR14396) Governor Mechanical Displacement 7.5L (456.0 cu in) Firing Order 1–5–3–6–2–4 Rated Speed 2200 rpm Low Idle Speed 800 rpm High Idle Speed...
Page 28 SECTION 10 – ENGINE – CHAPTER 1 EXHAUST VALVES Face Angle 44°15’–44°30’ Relative to the Head of Valve Stem Diameter Std : 9.401–9.421mm (0.3701–0.3709 in) Oversize : 0.38mm (0.015 in) 9.781–9.802mm (0.3851–0.3859 in) Head Diameter 42.88–43.13mm (1.688–1.698 in) Stem to Guide Clearance 0.048–0.094mm (0.0019–0.0037 in) INTAKE VALVES Face Angle...
Page 29 SECTION 10 – ENGINE – CHAPTER 1 VALVE SEATS Exhaust Valve Seat Angle 45°00’ – 45°30’ Intake Valve Seat Angle 30°00’ – 30°30’ Interference Valve Face Angle to Valve Seat Angle 0°30’ – 1°15’ Concentricity With Guide Diameter 0.051mm (0.002 in) Total Indicator Reading Max Seat Width Exhaust Valve 1.8–2.3mm (0.072–0.092 in) Intake Valve...
Page 30 SECTION 10 – ENGINE – CHAPTER 1 CAMSHAFT Bearing Journal Diameter 60.642–60.668mm (2.3875–2.3885 in) Bearing Clearance 0.076–0.178mm (0.003–0.007 in) End Play 0.051–0.18mm (0.0020–0.0070 in) CONNECTING RODS Small End Bushing (Internal Diameter) 44.460 - 44.467 mm (1.7504-1.7507) Big End Bearing Clearance 0.038–0.104 mm (0.0015–0.0041 in) Clearance Bushing to Piston Pin 0.013–0.025mm (0.0005–0.0010 in)
Page 31 SECTION 10 – ENGINE – CHAPTER 1 CRANKSHAFT Main Journal Diameter – Blue 85.631–85.644mm (3.3713–3.3718 in) – Red 85.644–85.656mm (3.3718–3.3723 in) Main Journal Length (except thrust, rear, or intermediate) 36.96–37.21mm (1.455–1.465 in) Main Journal Wear Limits 0.127mm (0.005 in) Maximum Main and Crankpin Fillet Radius 0.25mm (0.010 in) Thrust Bearing Journal Length...
Page 32 SECTION 10 – ENGINE – CHAPTER 1 CRANKSHAFT RE–GRINDING When re–grinding a crankshaft the main and crankpin journal diameters should be reduced the same amount as the undersize bearings used, and the following dimensions apply. The rear end of the crankshaft should be located on the 60°...
Page 33 SECTION 10 – ENGINE – CHAPTER 1 OIL FILTER SUPPORT Relief Valve, Operating Pressure 3.8–4.1 bars (55–60 lbf/in Flow Rate 68.1–75.7 l/min. (15–16.6 imp gals/min,18–20 US gals/min) ENGINE OILS AND CHANGE PERIODS Refer to Operators Manual ENGINE OIL CAPACITIES Model Imp Pints U.S Gals Litres...
Page 34 Type Centrifugal Drive Poly V Belt, 8 rib FAN BELT Belt Tension Maintained by Automatic Tensioner COOLING SYSTEM CAPACITIES See Operators Manual COOLING FLUID Content Mixture – Water 50%, New Holland Antifreeze 50%. ( New Holland Antifreeze specification: NH900A) 10-9...
Page 35 SECTION 10 – ENGINE – CHAPTER 1 TORQUE VALUES – VARIOUS lbf ft Main Bearing Bolts 81 + 90° 60 + 90° Connecting Rod Bolts Cylinder Head Bolts (with Engine Cold) 55–95+90° 40–70+90° Cylinder Head through Rocker Shaft Bolts As above +45° As above +45°...
Page 36 SECTION 10 – ENGINE – CHAPTER 1 The following general nut and bolt installation torque requirements (lubricated) apply to any operation not previously listed. INCH SERIES lbf ft – 20 – 28 –18 –24 – 16 – 24 –14 –20 –...
Page 37 SECTION 10 – ENGINE – CHAPTER 1 SPECIAL TOOLS Description CNH Tool Prior Tool Nuday Tool Number Number Number Engine sling hook, 290740 – – (use with brackets 82852825 and 82932534) Engine revolving stand 380000301 – – Engine overhaul brackets kit 380000313 –...
Page 38 SECTION 10 – ENGINE – CHAPTER 1 FAULT FINDING When effecting a repair the cause of the problem The following table lists problems and their possible must be investigated and corrected to avoid repeat causes with recommended remedial action. failures. PROBLEM POSSIBLE CAUSES REMEDY...
Page 39 SECTION 10 – ENGINE – CHAPTER 1 PROBLEM POSSIBLE CAUSES REMEDY 1. Diluted or thin oil 1. Check crankshaft bearings for Engine knocks damage, change as required. Drain and refill with specified oil and renew filter. Ascertain cause of dilution 2.
Page 40 SECTION 10 – ENGINE – CHAPTER 1 PROBLEM POSSIBLE CAUSES REMEDY 1. Hose connection leaking 1. Tighten hose connection, renew Engine overheats collapsed hose if damaged 2. Radiator cap defective or not 2. Renew radiator cap sealing 3. Radiator leakage 3.
Page 41 SECTION 10 – ENGINE – CHAPTER 1 PROBLEM POSSIBLE CAUSES REMEDY 1. Engine oil level low 1. Top up, as necessary Low oil pressure 2. Wrong grade of oil 2. Drain and refill with correct grade of oil 3. Blocked oil pump sump screen 3.
Page 42 SECTION 10 – ENGINE – CHAPTER 1 DESCRIPTION AND OPERATION The CNH 7.5 Litre engine is a 6-cylinder CYLINDER BLOCK ASSEMBLY turbocharged and aftercooled unit, having a bore of The cylinder block is an alloy cast iron with deep 4.4″ (111.8 mm) and a stroke of 5.0″ (127 mm) which cylinder skirts, and water jackets for cooling the generates a displacement of 456 in cylinders.
Page 43 SECTION 10 – ENGINE – CHAPTER 1 CYLINDER HEAD ASSEMBLY The cylinder head incorporates an inlet and exhaust valve per cylinder with the valve rocker arm shaft assembly bolted to the cylinder block through the cylinder head. Cylinder head retaining bolts are evenly spaced with a six point pattern around each cylinder, this ensures an even clamping load across the cylinder head area.
Page 44 SECTION 10 – ENGINE – CHAPTER 1 CONNECTING RODS Connecting rods ‘‘Teepee” (wedge) shaped at the small end have been designed to reduce the reciprocating weight at the piston end. The connecting rods are of a heavy beam construction and are assembled as a matched set to each engine. They are retained in position by the connecting rod big end cap and secured by two bolts per rod.
Page 45 SECTION 10 – ENGINE – CHAPTER 1 LUBRICATION SYSTEM Engine Lubrication System Lubrication of the engine, Figure 1, is maintained by a rotor type oil pump mounted in the rear of the engine block, forward of the flywheel on the left hand side of the engine.
Page 46 SECTION 10 – ENGINE – CHAPTER 1 A spring loaded relief valve is integral with the dummy oil filter head mounted on the left hand side of the engine block and prevents over pressurisation of the system. 396–E–18 The spin on type oil filter is mounted next to the oil cooler.
Page 47 SECTION 10 – ENGINE – CHAPTER 1 Timing gears are lubricated by splashed oil from the cam follower chamber, and the pressure lubricated camshaft drive gear bushing. P396–E–36 The turbocharger is supplied with oil from the oil filter support housing, mounted on the left hand side of the engine.
Page 48 SECTION 10 – ENGINE – CHAPTER 1 CRANKCASE BREATHER All engines feature a Closed Crankcase Ventilation System which is specifically designed to reduce emmisions. Crankcase blow–by is produced when the combustion gases, under high pressure, become contaminated with oil droplets when blown past the piston rings into the crankcase.
Page 49 SECTION 10 – ENGINE – CHAPTER 1 ENGINE OVERHAUL–INTRODUCTION In the following procedures and illustrations the with the electronically controlled fuel injection pump engine is shown removed from the vehicle however refer to the “Engine Fault Codes” chapter in the there are certain operations that can be performed electrical section of the manual.
Page 50 SECTION 10 – ENGINE – CHAPTER 1 TIMING CHECK If a fuel related concern is identified check the injection pump timing before proceeding with any other disassembly. NOTE: Where it is necessary to remove additional items to gain access to the components on the en- gine Refer to Chapter 1 “Separating/Removing En- ginet”.
Page 51 SECTION 10 – ENGINE – CHAPTER 1 4. To ensure the crankshaft is accurately positioned at TDC remove the crankshaft timing plug (1) from the side of the engine block. DO NOT disturb the timing pin bush (2). This has been accurately set during original manufacture.
Page 52 SECTION 10 – ENGINE – CHAPTER 1 8. Check that the injection pump timing pin Tool No 3800000404 will screw into the pump hub. The engine must never be rotated while the timing pin is installed. 9. If the pin (1) engages in the pump timing plate (inset, Figure 21 ) when the crankshaft is at TDC the pump timing is correct.
Page 53 SECTION 10 – ENGINE – CHAPTER 1 OVERHAUL CYLINDER HEAD, VALVES, AND RELATED PARTS Cylinder Head Removal The cylinder head can be removed with the engine installed in the tractor. 1. Check that the heater shutoff valve (1) is open. This valve is on the rear, right-hand side of the engine cylinder head.Drain the engine coolant by placing a suitable container below the coolant...
Page 54 SECTION 10 – ENGINE – CHAPTER 1 5. Clean the area surrounding the fuel injectors. Disconnect and remove injector lines (1) and leak off lines (2) from the fuel injectors and injection pump. Cap all exposed openings. 6. Remove injectors from the cylinder head. 7.
Page 55 SECTION 10 – ENGINE – CHAPTER 1 9. Remove the rocker cover and gasket. 10. Loosen the rocker shaft retaining bolts (which also serve as head bolts) evenly and alternately and remove the rocker shaft assembly. NOTE: Leave bolts in the rocker shaft supports dur- ing removal, as they retain the support on the shaft.
Page 56 SECTION 10 – ENGINE – CHAPTER 1 Cylinder Head Disassembly 1. Using valve spring compressor, tool No.380000302 (FNH02136), (1) remove the retainer locks (2) and place in a numbered rack.. 2. Clean the cylinder head, and remove carbon deposits from around the valve heads. TA6010011 Inlet and Exhaust Valves Inlet Valve...
Page 57 SECTION 10 – ENGINE – CHAPTER 1 Inspection and Repair, Cylinder Head 1. Replace cylinder head core plugs if discoloured (rusty), or leaking. Before fitting new plugs remove all old sealer from the cylinder head. Apply sealant G, see ‘‘SPECIFICATIONS”, to the new plug mating faces, and drive the new plugs into location.
Page 58 SECTION 10 – ENGINE – CHAPTER 1 Valve Inserts Counter Bore in Cylinder Head Insert Oversize Insert Oversize Exhaust valve insert Intake valve insert 0.010 in (0.25mm) 1.739–1.740 in (44.17–44.20mm) 1.969–1.970 in (50.01–50.04mm) 0.020 in (0.58mm) 1.749–1.750 in (44.42–44.45mm) 1.979–1.980 in (50.27–50.29mm) 0.030 in (0.76mm) 1.759–1.760 in (44.68–44.70mm) 1.989–1.990 in (50.52–50.55mm)
Page 59 SECTION 10 – ENGINE – CHAPTER 1 5. Use a seat cutter to correct any seat eccentricity, or clean up of pits and grooves. Ensure after any rework that seat width is within specified limits. 6. Rotate a new or refaced valve in the seat using engineering blue, ensure all the blue is transferred to the valve head protrusion, If any blue remains below or around the seat raise or...
Page 60 SECTION 10 – ENGINE – CHAPTER 1 Valve Springs 1. Checked on a flat surface squareness, should not exceed 0.060 in (1.52mm), between the square, and spring at the top edge, Figure 44. Length of valve springs should be checked on both free length, and loaded length.
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