New Holland TZ18DA, TZ22DA, TZ25DA Service Manual

87350104 5/05 © 2005 CNH America LLC Printed In U.S.A. TZ18DA, TZ22DA, TZ24DA, TZ25DA REPAIR MANUAL COMPLETE CONTENTS SECTION 00 - GENERAL INFORMATION 2 .............................. SECTION 10 - ENGINE SYSTEMS 4 .................................... SECTION 25 - FWD 11 ................................................. SECTION 27 - DIFFERENTIAL AND REAR AXLES 13 ..................... SECTION 29 - HYDROSTATIC TRANSMISSION 14 ........................ SECTION 31 - PTO 17 .................................................. SECTION 33 - BRAKES 19 .............................................. SECTION 35 - HYDRAULIC SYSTEM 19 .................................. SECTION 41 - POWER STEERING 23 .................................... SECTION 44 - WHEELS 25 .............................................. SECTION 55 - ELECTRICAL SYSTEM 26 ................................. SECTION 58 - 54CMS--60CMS MID MOUNT MOWER 35 ................... SECTION 90 - PLATFORM 36 ........................................... The following pages are the collation of the contents pages from each section and chapter of the TZ18DA, TZ22DA, TZ24DA, TZ25DA Repair manual. Complete Repair part # 87350100. The sections used through out all New Holland product Repair manuals may not be used for each product. Each Repair manual will be made up of one or several books. Each book will be labeled as to which sections are in the overall Repair manual and which sections are in each book. The sections listed above are the sections utilized for the TZ18DA, TZ22DA, TZ24DA, TZ25DA Tractors.

2 SECTION 00 - GENERAL INFORMATION BOOK 1 - 87350101 Chapter 1 - General Information CONTENTS Section Description Page Precautionary Statements 3 ....................................................... Personal Safety 3 ................................................................ Machine Safety 3 ................................................................ Information 3 .................................................................... Safety 4 ........................................................................ Precautionary Statements 4 ....................................................... The Tractor 4 ................................................................ Servicing the Tractor 4 ........................................................ Operating the Tractor 5 ........................................................ Driving the Tractor 5 .......................................................... Operating the PTO 6 .......................................................... Diesel Fuel 6 ................................................................ Safety Frame (ROPS) 6 ....................................................... Safety Decals 7 .................................................................. Instruction Decals 10 ......................................................... Ecology and the Environment 16 .................................................. Helpful Hints 16 ............................................................. Universal Symbols 17 ........................................................... General Information 18 .......................................................... Please Read Carefully 18 ..................................................... Minimum Hardware Tightening Torques 19 ......................................... Metric Bolt Torque Specifications 20 ............................................... Lubrication and Maintenance 21 .................................................. General Information 21 ....................................................... Grease Fittings 21 ........................................................ Chains 21 ............................................................... Lubrication and Maintenance Chart 23 ............................................. Lubrication Fittings 24 ........................................................ Diesel Fuel 24 .............................................................. Fuel Usage Safety 24 .....................................................

3 SECTION 00 - GENERAL INFORMATION BOOK 1 - 87350101 Chapter 1 - General Information (Continued) CONTENTS Section Description Page Specifications 25 ................................................................ Engine 25 .................................................................. Capacities 25 ............................................................... Cooling System 26 ........................................................... Electrical System 26 ......................................................... Fuel System 26 ............................................................. Brakes 27 .................................................................. Steering 27 ................................................................. Power Take-Off (PTO) 27 ..................................................... Hydraulic Lift Section 27 ...................................................... Transmission Speeds 28 ..................................................... Cast Iron Weights 29 ......................................................... Drawbars 29 ................................................................ 3-Point Hitch 29 ............................................................. Tires 29 .................................................................... Wheel Bolt Torques 29 ....................................................... ROPS Attaching Bolt Torques 29 .............................................. General Dimensions 30 .......................................................... Wheel Tread Settings 30 ..................................................... Liquid Ballast (optional) 32 .................................................... Tire Pressure 32 .............................................................

4 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems CONTENTS Section Description Page 10 000 Specifications 6 .................................................................. Torque Specifications 15 ......................................................... Metric Bolt Torque Specifications 15 ............................................... Special Tools 16 ................................................................ General Information -- Description of Operation 17 ................................... Identification Chart 17 ........................................................ Cylinder Head and Valve Train Components 17 .................................. Cylinder Block Assembly 19 ................................................... Troubleshooting 20 .............................................................. Overhaul 26 .................................................................... Engine Access 26 ........................................................... Disassembly 26 .......................................................... Fuel Injector and Glow Plug 29 ................................................ Removal 29 ............................................................. Hydraulic Pump 30 .......................................................... Removal 30 ............................................................. Fan, Water Pump and External Oil Tube 30 ..................................... Removal 30 ............................................................. Fuel Shutoff Solenoid 30 ...................................................... Removal 30 ............................................................. Oil Pressure Switch 31 ....................................................... Removal 31 ............................................................. Temperature Sending Switch and Alternator 31 .................................. Removal 31 ............................................................. Throttle Cable 31 ............................................................ Disconnection 31 ......................................................... Support Frame 32 ........................................................... Removal 32 ............................................................. Engine 32 .................................................................. Removal 32 ............................................................. Valve Cover 33 .............................................................. Removal 33 .............................................................

5 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems (Continued) CONTENTS Section Description Page Rocker Shaft and Push Rod 34 ................................................ Removal 34 ............................................................. Cylinder Head 34 ............................................................ Removal 34 ............................................................. Valve Tappet 35 ............................................................. Removal 35 ............................................................. Engine Timing Gear Cover, Timing Gears and Camshaft 35 ....................... Timing Gears and Camshaft 36 ................................................ Removal 36 ............................................................. Oil Sump 36 ................................................................ Removal 36 ............................................................. Oil Suction Pipe and Strainer 37 ............................................... Removal 37 ............................................................. Connecting Rods, Bearings and Piston 37 ...................................... Removal 37 ............................................................. Flywheel 38 ................................................................. Removal 38 ............................................................. Backplate and Oil Seal 38 .................................................... Removal 38 ............................................................. Crankshaft and Main Bearings 38 .............................................. Removal 38 ............................................................. 18 110 Cylinder Head 39 ............................................................ Disassembly 39 .......................................................... Inspection and Repair 39 .................................................. Valve Seats 40 .............................................................. Inspection and Repair 40 .................................................. Valves 40 ................................................................... Inspection and Repair 40 .................................................. Valve Guides 42 ............................................................. Inspection and Repair 42 .................................................. Valve Springs 42 ............................................................ Inspection and Repair 42 ..................................................

6 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems (Continued) CONTENTS Section Description Page Rocker Arms 43 ............................................................. Inspection and Replacement 43 ............................................ Push Rods 43 ............................................................... Inspection and Replacement 43 ............................................ Cylinder Head 44 ............................................................ Assembly 44 ............................................................ Cylinder Block 44 ............................................................ Inspection and Repair 44 .................................................. 10 105 Pistons 45 .................................................................. Disassembly and Inspection 45 ............................................ Piston Rings 47 ............................................................. Inspection and Replacement 47 ............................................ Connecting Rods 48 ......................................................... Inspection and Repair 48 .................................................. Connecting Rod Bearing Oil Clearance Check 50 ................................ Pistons, Rings and Connecting Rod 50 ......................................... Assembly 50 ............................................................ 10 103 Main Bearing and Thrust Bearing 51 ........................................... Removal and Inspection 51 ................................................ Crankshaft 52 ............................................................... Inspection 52 ............................................................ Crankshaft Journal Wear Limit and Bearing Usage 52 ................................ Crankshaft Front Main Bearing (Bushing) 53 .................................... Inspection 53 ............................................................ Replacement 53 ......................................................... Crankshaft Main Bearing 54 ................................................... Assembly 54 ............................................................ Port Block 54 ............................................................... Removal 54 ............................................................. Installation 55 ............................................................ Timing Gear 55 .............................................................. Inspection 55 ............................................................

7 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems (Continued) CONTENTS Section Description Page Camshaft 55 ................................................................ Disassembly 55 .......................................................... Inspection 56 ............................................................ Assembly 56 ............................................................ 10 103 Flywheel 57 ................................................................. Inspection 57 ............................................................ Timing Gear Housing 57 ...................................................... Front Oil Seal and Steering Pump Seal 57 ...................................... Replacement 57 ......................................................... Crankshaft and Bearing Holder 58 ............................................. Assembly 58 ............................................................ Rear Oil Seal and Backplate 58 ................................................ Assembly 58 ............................................................ Flywheel 59 ................................................................. Installation 59 ............................................................ Piston and Connecting Rod 59 ................................................ Installation 59 ............................................................ Oil Suction Pipe and Suction Strainer 60 ........................................ Installation 60 ............................................................ Oil Sump 60 ................................................................ Installation 60 ............................................................ Timing Gear Cover, Timing Gears and Camshaft 60 .............................. Assembly 60 ............................................................ Head Gasket Selection 62 .................................................... Cylinder Head 63 ............................................................ Assembly 63 ............................................................ Valve Clearance Adjustment 64 ................................................ Valve Cover 64 .............................................................. Installation 64 ............................................................ Engine 65 .................................................................. Installation 65 ............................................................

8 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems (Continued) CONTENTS Section Description Page Drive Train 66 ............................................................... Installation 66 ............................................................ Support Frame 66 ........................................................... Installation 66 ............................................................ Tachometer and Throttle Cables 66 ............................................ Installation 66 ............................................................ Alternator and Temperature Sending Switch 67 .................................. Installation 67 ............................................................ Oil Pressure Switch 67 ....................................................... Installation 67 ............................................................ Fuel Shutoff Solenoid 67 ...................................................... Installation 67 ............................................................ Fan, Water Pump and External Oil Tube 68 ..................................... Installation 68 ............................................................ Hydraulic Pump 68 .......................................................... Installation 68 ............................................................ Glow Plug and Connector 68 .................................................. Installation 68 ............................................................ Fuel Injection Pump 69 ....................................................... Installation 69 ............................................................ Fuel Injector 70 ............................................................. Installation 70 ............................................................ Fuel Line 70 ................................................................ Installation 70 ............................................................ Exhaust Manifold, Air Cleaner and Radiator 71 .................................. Installation 71 ............................................................ 10 304 Engine Lubrication System -- Description of Operation 74 ............................. 10 206 Engine Oil Filter 77 .......................................................... Construction and Function 77 .............................................. Maintenance 77 .......................................................... 10 304 Oil Pump 77 ................................................................ Removal 77 ............................................................. Inspection 77 ............................................................

9 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 1 - Engine Systems (Continued) CONTENTS Section Description Page Installation and Adjustment 78 ............................................. Engine Oil Pressure Check 79 ................................................. Oil Pressure Relief Valve 79 ................................................... Removal 79 ............................................................. Installation 79 ............................................................ Oil Consumption 80 ......................................................... 10 400 Cooling System -- Description of Operation 81 ...................................... Maintenance 83 ............................................................. Coolant 83 .................................................................. Thermostat 83 .............................................................. Water Pump 83 ............................................................. Cooling Fan 83 .............................................................. Radiator 83 ................................................................. Radiator Cap 83 ............................................................. 10 406 Cooling System Overhaul 84 ..................................................... Radiator 84 ................................................................. Removal 84 ............................................................. Inspection and Repair 85 .................................................. Installation 86 ............................................................ 10 402 Water Pump and Thermostat 87 ............................................... Removal 87 ............................................................. Inspection and Repair 89 .................................................. Installation 90 ............................................................ Testing 93 ..................................................................... Compression Test and Tools 93 ................................................

10 SECTION 10 - ENGINE SYSTEMS BOOK 1 - 87350101 Chapter 2 - Fuel System CONTENTS Section Description Page Specifications 2 .................................................................. Torque Specifications 2 ........................................................... Special Tools 2 .................................................................. Fuel System -- Description of Operation 3 ........................................... 10 242 Injection Pump -- Description of Operation 5 ......................................... 10 236 Pumping Elements 7 ...................................................... 10 214 Delivery Valves 9 .......................................................... Troubleshooting -- General 11 ..................................................... Troubleshooting -- Fuel Injectors 14 ................................................ Troubleshooting -- Governor 15 ................................................... Troubleshooting -- Engine Breather Valve 16 ........................................ Overhaul 17 .................................................................... 10 214 Injection Pump 17 ........................................................... Removal 17 ............................................................. Repair 17 ............................................................... Installation 17 ............................................................ 10 230 Timing and Governor Adjustments 18 .............................................. Using Original Pump and Drive Components 18 .................................. New Pump or Drive Component 18 ............................................ Installation 18 ............................................................ Spill-Timing Procedure 19 .................................................... Bleeding the Fuel System 23 .................................................. Full Screw High Idle Adjustment 23 ............................................ 10 230 Governor -- Description of Operation 24 ............................................ Governor 26 ................................................................ Disassembly 26 .......................................................... Assembly 27 ............................................................ Adjustments 28 .......................................................... 10 218 Injectors -- Description of Operation 29 ............................................. Injector 30 .................................................................. Removal 30 ............................................................. Disassembly 31 .......................................................... Assembly and Adjustment 31 .............................................. Engine Breather Valve 32 ..................................................... Removal 33 ............................................................. Installation 33 ............................................................

New Holland TZ18DA, TZ22DA, TZ25DA Service Manual

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