New Holland Boomer 20 Service Manual
The New Holland Boomer 20 is a compact tractor designed for a variety of tasks, from mowing and landscaping to light-duty farming. It's equipped with a powerful engine, a hydrostatic transmission for smooth operation, and a variety of features to make work easier and more efficient.
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SERVICE MANUAL SERVICE MANUAL Boomer 20 / Boomer 25 Compact Tractor TM TM Boomer 20 Boomer 25 TM TM Compact Tractor Part number 48017684 Part number 48017684 English June 2016 © 2016 CNH Industrial America LLC. All Rights Reserved. SERVICE MANUAL Boomer™ 20 Boomer™ 25 48017684 02/06/2016 EN Find manuals at https://best-manuals.com Link Product / Engine Product Boomer™ 20 Boomer™ 25 Market Product Europe Europe Engine S3L2 S3L2 48017684 02/06/2016 Find manuals at https://best-manuals.com Contents INTRODUCTION Engine....................................................................................... 10 [10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 [10.304] Engine lubrication system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 [10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3 Clutch ....................................................................................... 18 [18.110] Clutch and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1 [18.112] Slip clutch or flywheel damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2 Transmission.............................................................................. 21 [21.114] Mechanical transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1 Front axle system ....................................................................... 25 [25.100] Powered front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1 [25.102] Front bevel gear set and differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.2 [25.108] Final drive hub, steering knuckles, and shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.3 [25.310] Final drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.4 Rear axle system........................................................................ 27 [27.106] Rear bevel gear set and differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.1 [27.124] Final drive hub, steering knuckles, and shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2 Hydrostatic drive......................................................................... 29 [29.100] Transmission and steering hydrostatic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.1 [29.202] Hydrostatic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.2 [29.204] Reservoir, cooler, and lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.3 [29.218] Pump and motor components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.4 Power Take-Off (PTO) ................................................................. 31 [31.101] Rear mechanical control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 [31.104] Rear electro-hydraulic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 48017684 02/06/2016 Find manuals at https://best-manuals.com [31.110] One-speed rear Power Take-Off (PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 [31.120] Central Power Take-Off (PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.4 Brakes and controls .................................................................... 33 [33.110] Parking brake or parking lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.1 [33.120] Mechanical service brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.2 Hydraulic systems....................................................................... 35 [35.000] Hydraulic systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.1 [35.104] Fixed displacement pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.2 [35.114] Three-point hitch control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.3 [35.116] Three-point hitch cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.4 [35.204] Remote control valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.5 [35.300] Reservoir, cooler, and filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.6 [35.350] Safety and main relief valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.7 Hitches, drawbars, and implement couplings.................................. 37 [37.110] Rear three-point hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37.1 Steering..................................................................................... 41 [41.106] Tie rods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 [41.200] Hydraulic control components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 [41.216] Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 Wheels ...................................................................................... 44 [44.511] Front wheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.1 [44.520] Rear wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.2 Electrical systems ....................................................................... 55 [55.000] Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.1 [55.010] Fuel injection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.2 [55.011] Fuel tank system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.3 [55.012] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.4 48017684 02/06/2016 Find manuals at https://best-manuals.com [55.013] Engine oil system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.5 [55.031] Parking brake electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.6 [55.048] Rear Power Take-Off (PTO) control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.7 [55.100] Harnesses and connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.8 [55.201] Engine starting system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.9 [55.202] Cold start aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.10 [55.302] Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.11 [55.404] External lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.12 [55.405] External lighting switches and relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.13 [55.408] Warning indicators, alarms, and instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.14 Platform, cab, bodywork, and decals ............................................. 90 [90.120] Mechanically-adjusted operator seat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90.1 48017684 02/06/2016 Find manuals at https://best-manuals.com 48017684 02/06/2016 Find manuals at https://best-manuals.com INTRODUCTION 48017684 02/06/2016 1 Find manuals at https://best-manuals.com Contents INTRODUCTION Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Foreword - Important notice regarding equipment servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 International symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Safety rules - Ecology and the environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Basic instructions hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Torque - Standard torque data for hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Basic instructions - Shop and assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 General specification - Tractors with Hydrostatic Transmission (HST) . . . . . . . . . . . . . . . . . . . . . . . 19 General specification - Tractor with mechanical transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 General specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Product identification machine orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 48017684 02/06/2016 2 Find manuals at https://best-manuals.com INTRODUCTION Foreword This repair manual provides the technical information needed to properly service the NEW HOLLAND models Boomer 20 and 25 tractors. Use this manual in conjunction with the operator's manual for complete operation, adjustment, and maintenance information On NEW HOLLAND equipment, left and right are determined by standing behind the unit, looking in the direction of travel. 48017684 02/06/2016 3 Find manuals at https://best-manuals.com INTRODUCTION Foreword - Important notice regarding equipment servicing All repair and maintenance work listed in this manual must be carried out only by qualified dealership personnel, strictly complying with the instructions given, and using, whenever possible, the special tools. Anyone who performs repair and maintenance operations without complying with the procedures provided herein shall be responsible for any subsequent damages. The manufacturer and all the organizations of its distribution chain, including - without limitation - national, regional, or local dealers, reject any responsibility for damages caused by parts and/or components not approved by the manufacturer, including those used for the servicing or repair of the product manufactured or marketed by the manufacturer. In any case, no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case of damages caused by parts and/or components not approved by the manufacturer. The manufacturer reserves the right to make improvements in design and changes in specifications at any time without notice and without incurring any obligation to install them on units previously sold. Specifications, descriptions, and illustrative material herein are as accurate as known at time of publication but are subject to change without notice. In case of questions, refer to your NEW HOLLAND Sales and Service Networks. 48017684 02/06/2016 4 INTRODUCTION International symbols As a guide to the operation of the machine, various universal symbols have been utilized on the instruments, controls, switches, and fuse box. The symbols are shown below with an indication of their meaning. Thermostart starting aid Radio PTO Position Control Alternator charge Keep alive memory Transmission in neutral Draft Control Fuel level Turn signals Creeper gears Accessory socket Automatic Fuel shut-off Turn signals -one trailer Slow or low setting Implement socket Engine speed ( RPM x 100) Turn signals -two trailers Fast or high setting %age slip Ground speed Hitch raise (rear) Differential lock Hitch lower (rear) Hours recorded Engine oil pressure Front windscreen wash/wipe Rear windscreen wash/wipe Engine coolant temperature Heater temperature control Rear axle oil temperature Hitch height limit (rear) Coolant level Heater fan Transmission oil pressure Hitch height limit (front) Tractor lights Air conditioner FWD engaged Hitch disabled Headlamp main beam Air filter blocked FWD disengaged Hydraulic and transmission filters Headlamp dipped beam Parking brake Warning! Remote valve extend Work lamps Brake fluid level Hazard warning lights Remote valve retract Stop lamps Trailer brake Variable control Remote valve float Horn Roof beacon Pressurised! Open carefully Warning ! Corrosive substance 48017684 02/06/2016 5 Malfunction! See Operator's Manual Malfunction! (alternative symbol) INTRODUCTION Safety rules BT09A213 1 48017684 02/06/2016 6 INTRODUCTION Safety rules Personal safety This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible death or injury. Throughout this manual you will find the signal words DANGER, WARNING, and CAUTION followed by special instructions. These precautions are intended for the personal safety of you and those working with you. Read and understand all the safety messages in this manual before you operate or service the machine. DANGER indicates a hazardous situation that, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury. CAUTION indicates a hazardous situation that, if not avoided, could result in minor or moderate injury. FAILURE TO FOLLOW DANGER, WARNING, AND CAUTION MESSAGES COULD RESULT IN DEATH OR SERIOUS INJURY. Machine safety NOTICE: Notice indicates a situation that, if not avoided, could result in machine or property damage. Throughout this manual you will find the signal word Notice followed by special instructions to prevent machine or property damage. The word Notice is used to address practices not related to personal safety. Information NOTE: Note indicates additional information that clarifies steps, procedures, or other information in this manual. Throughout this manual you will find the word Note followed by additional information about a step, procedure, or other information in the manual. The word Note is not intended to address personal safety or property damage. 48017684 02/06/2016 7 INTRODUCTION Safety rules - Ecology and the environment Soil, air, and water quality is important for all industries and life in general. When legislation does not yet rule the treatment of some of the substances that advanced technology requires, sound judgment should govern the use and disposal of products of a chemical and petrochemical nature. Familiarize yourself with the relative legislation applicable to your country, and make sure that you understand this legislation. Where no legislation exists, obtain information from suppliers of oils, filters, batteries, fuels, anti-freeze, cleaning agents, etc., with regard to the effect of these substances on man and nature and how to safely store, use, and dispose of these substances. Helpful hints • Avoid the use of cans or other inappropriate pressurized fuel delivery systems to fill tanks. Such delivery systems may cause considerable spillage. • In general, avoid skin contact with all fuels, oils, acids, solvents, etc. Most of these products contain substances that may be harmful to your health. • Modern oils contain additives. Do not burn contaminated fuels and or waste oils in ordinary heating systems. • Avoid spillage when you drain fluids such as used engine coolant mixtures, engine oil, hydraulic fluid, brake fluid, etc. Do not mix drained brake fluids or fuels with lubricants. Store all drained fluids safely until you can dispose of the fluids in a proper way that complies with all local legislation and available resources. • Do not allow coolant mixtures to get into the soil. Collect and dispose of coolant mixtures properly. • The air-conditioning system contains gases that should not be released into the atmosphere. Consult an air-conditioning specialist or use a special extractor to recharge the system properly. • Repair any leaks or defects in the engine cooling system or hydraulic system immediately. • Do not increase the pressure in a pressurized circuit as this may lead to a component failure. • Protect hoses during welding. Penetrating weld splatter may burn a hole or weaken hoses, allowing the loss of oils, coolant, etc. Battery recycling Batteries and electric accumulators contain several substances that can have a harmful effect on the environment if the batteries are not properly recycled after use. Improper disposal of batteries can contaminate the soil, groundwater, and waterways. NEW HOLLAND strongly recommends that you return all used batteries to a NEW HOLLAND dealer, who will dispose of the used batteries or recycle the used batteries properly. In some countries, this is a legal requirement. Mandatory battery recycling NOTE: The following requirements are mandatory in Brazil. Batteries are made of lead plates and a sulfuric acid solution. Because batteries contain heavy metals such as lead, CONAMA Resolution 401/2008 requires you to return all used batteries to the battery dealer when you replace any batteries. Do not dispose of batteries in your household garbage. Points of sale are obliged to: • Accept the return of your used batteries • Store the returned batteries in a suitable location • Send the returned batteries to the battery manufacturer for recycling 48017684 02/06/2016 8 INTRODUCTION Basic instructions hardware General Your tractor has been built using metric hardware. NOTE: Be sure to use the hardware specified when using tapped holes, as trying to install a metric bolt in an inch thread, or an inch bolt in a metric thread, will damage the thread. Certain hardware must be tightened to specific torque specifications. If specific torque specifications are not noted, tighten the hardware to the standard torque chart specification listed in this manual. Plating Hardware used on NEW HOLLAND balers is plated with zinc chromate (gold color). Gold colored hardware has different torquing requirements from unplated or zinc plated (silver color) hardware because of the difference in the coefficient of friction of the plating material. The torque charts in this manual list the correct specifications for gold, silver, and unplated bolts. Nut tightening Whenever possible, the nut should be tightened, not the head of the bolt. When tightening using the bolt head, the clamp load can be lost because some of the torque applied twists the bolt instead of tensioning (stretching) it. The tension on the bolt is what holds the joint together. Approximately 90% of the torque applied during assembly goes to overcoming friction between the parts. The other 10% is used to tension (stretch) the bolt. After assembly, the frictional forces disappear, which is the basis for the saying 'If it does not fail during assembly, it will not fail in service.' The bolt may later fail due to other factors, but not from being over tightened. Locknuts Most locknuts are coated with a special lubricant that is dry to the touch. Anytime a locknut is used, a lower than normal torque is required. Refer to the torque charts in this manual for specific values. Jam nuts When using a jam nut to lock a regular nut, the jam nut should be installed first and tightened to one half the recommended torque, then held in place while installing a regular nut to the recommended torque. Thread lubrication The addition of antiseize compound, Molykote, oil, graphite, or any other lubricant to a bolt decreases the friction between it and a nut. This makes it necessary to reduce the recommended torque to prevent over tensioning of the bolt. When using the torque charts in this manual, decrease the value by 20% whenever a lubricant is used. 48017684 02/06/2016 9 INTRODUCTION Torque - Standard torque data for hydraulic connections General information • Hydraulic connections require a minimum assembly torque in order to provide zero leakage at rated pressure with adequate fatigue resistance. Over-torquing of a hydraulic connection can also lead to leakage or failure. For some connections, NEW HOLLAND requires a different torque value than is listed in the ISO and SAE standards. • The torque values in this document should be used whenever possible or applicable. NOTICE: Always follow the instructions in this manual for specific torque values when you service components. The information in this section is for general guidance only when a procedure contains no specific torque value. Tolerance • The tolerance for all torque values is ± 10 %. This tolerance must include all assembly variation, not only the torque wrench repeatability. Lubrication Application of grease or other lubricants to hydraulic connectors should be avoided. If clean hydraulic oil is already on the connection, it is not required to remove the oil. Generally, application of grease: • May cause a significant change in the torque required to properly tighten the connection. • May reduce the connection’s resistance to vibration. • Excessive grease may displace an elastomer seal during tightening. • Grease extrusion when connection is tightened may be mistaken for leakage. NEW HOLLAND products generally use O-Ring Boss (ORB) connectors that have Teflon™-coated O-rings, eliminating the need for O-ring lubrication during installation. For connections which are made into aluminum manifolds or with stainless steel connectors, it may be required to apply a lubricant to prevent galling. Use of LOCTITE® and other thread-locking compounds is prohibited. These compounds: • May cause a significant change in the torque required to properly tighten the connections. • Reduce the serviceability of the joint. • May prevent the O-ring from properly sealing if the compound gets on the O-ring. 48017684 02/06/2016 10 INTRODUCTION Torque values for metric O-Ring Boss (ORB) port connections Metric thread M8 x 1 M10 x 1 M12 x 1.5 M14 x 1.5 M16 x 1.5 M18 x 1.5 M22 x 1.5 M27 x 2 M30 x 2 M33 x 2 M42 x 2 M48 x 2 M60 x 2 S-Series * Ferrous Non-Ferrous N·m (lb ft) ± 10 % N·m (lb ft) ± 10 % 10.5 (7.7) 21 (15.5) 37 (27.3) 47 (34.7) 58 (42.8) 74 (54.6) 105 (77.4) 178 (131.3) 225 (166) 325 (239.7) 345 (254.5) 440 (324.5) 525 (387.2) L-Series ** Ferrous Non-Ferrous N·m (lb ft) ± 10 % N·m (lb ft) ± 10 % 6.3 (4.6) 12.5 (9.2) 22 (16.2) 28 (20.7) 35 (25.8) 44 (32.5) 63 (46.5) 107 (78.9) 135 (99.6) 195 (143.8) 207 (152.7) 264 (194.7) 315 (232.3) 8.5 (6.3) 15.5 (11.4) 27 (19.9) 37 (27.3) 42 (31) 47 (34.7) 63 (46.5) 105 (77.4) 136 (100.3) 168 (123.9) 220 (162.3) 273 (201.4) 330 (243.4) 5 (3.7) 9.3 (6.9) 16 (11.8) 22 (16.2) 25 (18.4) 28 (20.7) 38 (28) 63 (46.5) 82 (60.5) 101 (74.5) 132 (97.4) 164 (121) 198 (146) * S-Series connectors are used with O-Ring Face Seals (ORFS). ** L-Series connectors are used with 37 ° flare. Torque values for metric O-Ring Boss (ORB) port plugs Ferrous Non-ferrous Metric thread Internal hex N·m (lb ft) ± 10 % External hex N·m (lb ft) ± 10 % N·m (lb ft) ± 10 % M8 x 1 M10 x 1 M12 x 1.5 M14 x 1.5 M16 x 1.5 M18 x 1.5 M22 x 1.5 M27 x 2 M30 x 2 M33 x 2 M42 x 2 M48 x 2 M60 x 2 8.5 (6.3) 16 (11.8) 23 (17) 47 (34.7) 58 (42.8) 74 (54.6) 105 (77.4) 178 (131.3) 225 (166) 325 (239.7) 345 (254.5) 440 (324.5) 525 (387.2) 10.5 (7.7) 21 (15.5) 37 (27.3) 47 (34.7) 58 (42.8) 74 (54.6) 105 (77.4) 178 (131.3) 225 (166) 325 (239.7) 345 (254.5) 440 (324.5) 525 (387.2) 6.3 (4.6) 12.5 (9.2) 22 (16.2) 28 (20.7) 35 (25.8) 44 (32.5) 63 (46.5) 107 (78.9) 135 (99.6) 195 (143.8) 207 (152.7) 264 (194.7) 315 (232.3) 48017684 02/06/2016 11 INTRODUCTION Torque values for port connections (British Standard Pipe Parallel (BSPP) thread ports and stud ends) Metric tube Outside Diameter (OD) mm (in) BSPP thread G- Gas; A- medium coarse threads G 1/8 A G 1/4 A G 3/8 A S-Series * L-Series ** – 6 (0.236) or 8 (0.315) 10 (0.394) or 12 (0.472) 6 (0.236) 8 (0.315) or 10 (0.394) G 1/2 A 16 (0.630) G 3/4 A G1A G 1 1/4 A G 1 1/2 A 20 (0.787) 25 (0.984) 30 (1.181) 38 (1.496) 12 (0.472) 15 (0.591) or 18 (0.709) 22 (0.866) 28 (1.102) 35 (1.378) 42 (1.654) Ferrous Non-Ferrous S-Series N·m (lb ft) ± 10 % L-Series N·m (lb ft) ± 10 % S-Series N·m (lb ft) ± 10 % L-Series N·m (lb ft) ± 10 % – 21 (15.5) – 12.5 (9.2) 63 (46.5) 53 (39.1) 38 (28) 32 (23.6) 95 (70.1) 84 (62) 57 (42) 50 (36.9) 136 (100.3) 105 (77.4) 82 (60.5) 63 (46.5) 210 (154.9) 400 (295) 525 (387.2) 660 (486.8) 210 (154.9) 400 (295) 525 (387.2) 660 (486.8) 126 (92.9) 240 (177) 315 (232.3) 396 (292.1) 126 (92.9) 240 (177) 315 (232.3) 396 (292.1) * S-Series connectors are used with O-Ring Face Seals (ORFS). ** L-Series connectors are used with 37 ° flare. Torque values for metric port connections (Metric face-seal ports and stud ends) Metric tube Outside Diameter (OD) mm (in) Metric thread S-Series * M10 x 1 M12 x 1.5 M14 x 1.5 M16 x 1.5 M18 x 1.5 M20 x 1.5 M22 x 1.5 M26 x 1.5 M27 x 1.2 M33 x 2 M42 x 2 M48 x 2 – 4 (0.157) 5 (0.197) 7 (0.276) 8 (0.315) 10 (0.394) 12 (0.472) – 16 (0.630) 20 (0.787) 25 (0.984) 32 (1.260) Ferrous Non-Ferrous L-Series ** S-Series N·m (lb ft) ± 10 % L-Series N·m (lb ft) ± 10 % S-Series N·m (lb ft) ± 10 % L-Series N·m (lb ft) ± 10 % 4 (0.157) 6 (0.236) 7 (0.276) 9 (0.354) 11 (0.433) – 14 (0.551) 18 (0.709) – 23 (0.906) 30 (1.181) 36 (1.417) – 47 (34.7) 63 (46.5) 84 (62) 105 (77.4) 147 (108.4) 158 (116.5) – 210 (154.9) 400 (295) 525 (387.2) 630 (464.7) 21 (15.5) 32 (23.6) 53 (39.1) 63 (46.5) 84 (62) – 147 (108.4) 210 (154.9) – 28 (20.7) 38 (28) 50 (36.9) 63 (46.5) 88 (64.9) 95 (70.1) – 126 (92.9) 240 (177) 315 (232.3) 396 (292.1) 12.5 (9.2) 19 (14) 32 (23.6) 38 (28) 50 (36.9) – 88 (64.9) 126 (92.9) – 240 (177) 315 (232.3) 396 (292.1) * S-Series connectors are used with O-Ring Face Seals (ORFS). ** L-Series connectors are used with 37 ° flare. 48017684 02/06/2016 12 400 (295) 525 (387.2) 630 (464.7) INTRODUCTION Torque values for Inch O-Ring Boss (ORB) port non-adjustable connections SAE dash size UN/UNF thread size Inch tube OD mm (in) 2 3 4 5 6 8 10 12 14 16 20 24 32 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1-1/16-12 1-3/16-12 1-5/16-12 1-5/8-12 1-7/8-12 2-1/2-12 3.18 (0.125) 4.76 (0.187) 6.35 (0.250) 7.94 (0.313) 9.52 (0.375) 12.7 (0.500) 15.88 (0.625) 19.05 (0.750) 22.22 (0.875) 25.4 (1.000) 31.75 (1.250) 38.1 (1.500) 50.8 (2.000) S-Series * NonFerrous Ferrous N·m (lb ft) N·m (lb ft) ± 10 % ± 10 % L-Series ** NonFerrous Ferrous N·m (lb ft) N·m (lb ft) ± 10 % ± 10 % – 15.5 (11.4) 37 (27.3) 42 (31) 47 (34.7) 89 (65.6) 121 (89.2) 178 (131.3) 225 (166) 283 (208.7) 300 (221.3) 388 (286.2) 388 (286.2) 8.5 (6.3) 10.5 (7.7) 19 (14) 26 (19.2) 32 (23.6) 53 (39.1) 63 (46.5) 100 (73.8) 131 (96.6) 156 (115.1) 210 (154.9) 220 (162.3) 315 (232.3) – 9.3 (6.9) 22 (16.2) 25 (18.4) 28 (20.7) 53 (39.1) 73 (53.8) 107 (78.9) 135 (99.6) 170 (125.4) 180 (132.8) 233 (171.9) 233 (171.9) 5 (3.7) 6.3 (4.6) 11.5 (8.5) 15.5 (11.4) 19 (14) 32 (23.6) 38 (28) 60 (44.3) 79 (58.3) 94 (69.3) 126 (92.9) 132 (97.4) 189 (139.4) * S-Series connectors are used with O-Ring Face Seals (ORFS). ** L-Series connectors are used with 37 ° flare. Torque values for inch O-Ring Boss (ORB) port adjustable connections SAE dash size UN/UNF thread size Inch tube OD mm (in) 2 3 4 5 6 8 10 12 14 16 20 24 32 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1-1/16-12 1-3/16-12 1-5/16-12 1-5/8-12 1-7/8-12 2-1/2-12 3.18 (0.125) 4.76 (0.187) 6.35 (0.250) 7.94 (0.313) 9.52 (0.375) 12.7 (0.500) 15.88 (0.625) 19.05 (0.750) 22.22 (0.875) 25.4 (1.000) 31.75 (1.250) 38.1 (1.500) 50.8 (2.000) S-Series * NonFerrous Ferrous N·m (lb ft) N·m (lb ft) ± 10 % ± 10 % L-Series ** NonFerrous Ferrous N·m (lb ft) N·m (lb ft) ± 10 % ± 10 % – 10.5 (7.7) 21 (15.5) 42 (31) 47 (34.7) 89 (65.6) 121 (89.2) 178 (131.3) 225 (166) 285 (210.2) 300 (221.3) 388 (286.2) 388 (286.2) 8.5 (6.3) 10.5 (7.7) 19 (14) 26 (19.2) 32 (23.6) 53 (39.1) 63 (46.5) 100 (73.8) 131 (96.6) 156 (115.1) 210 (154.9) 220 (162.3) 315 (232.3) * S-Series connectors are used with O-Ring Face Seals (ORFS). ** L-Series connectors are used with 37 ° flare. 48017684 02/06/2016 13 – 9.3 (6.9) 21 (15.5) 25 (18.4) 28 (20.7) 53 (39.1) 73 (53.8) 107 (78.9) 135 (99.6) 170 (125.4) 180 (132.8) 233 (171.9) 233 (171.9) 5 (3.7) 6.3 (4.6) 11.5 (8.5) 15.5 (11.4) 19 (14) 32 (23.6) 38 (28) 60 (44.3) 79 (58.3) 94 (69.3) 126 (92.9) 132 (97.4) 189 (139.4) INTRODUCTION Torque values for inch O-Ring Boss (ORB) port plugs SAE dash size UN/UNF thread size 2 3 4 5 6 8 10 12 14 16 20 24 32 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1-1/16-12 1-3/16-12 1-5/16-12 1-5/8-12 1-7/8-12 2-1/2-12 Ferrous External hex Internal hex N·m (lb ft) N·m (lb ft) ± 10 % ± 10 % 7.5 (5.5) 14.5 (10.7) 21 (15.5) 28 (20.7) 47 (34.7) 89 (65.6) 116 (85.6) 176 (129.8) 247 (182.2) 284 (209.5) 357 (263.3) 441 (325.3) 536 (395.3) 12.5 (9.2) 21 (15.5) 37 (27.3) 42 (31) 47 (34.7) 89 (65.6) 116 (85.6) 176 (129.8) 247 (182.2) 284 (209.5) 357 (263.3) 441 (325.3) 536 (395.3) Non-Ferrous N·m (lb ft) ± 10 % 7.5 (5.5) 12.5 (9.2) 22 (16.2) 25 (18.4) 28 (20.7) 53 (39.1) 70 (51.6) 106 (78.2) 148 (109.2) 170 (125.4) 214 (157.8) 265 (195.5) 322 (237.5) Torque values for four-bolt flange connections (Metric Screws, Class 10.9) Metric size mm Imperial size in Screw code 61 Code 61 N·m (lb ft) ± 10 % 13 19 25 1/2 3/4 1 M8 x 1.25 M10 x 1.5 M10 x 1.5 34 (25.1) 74 (54.6) 74 (54.6) 32 1-1/4 M10 x 1.5 74 (54.6) 38 51 64 76 89 102 127 1-1/2 2 2-1/2 3 3-1/2 4 5 M12 x 1.75 M12 x 1.75 M12 x 1.75 M16 x 2 M16 x 2 M16 x 2 M16 x 2 137 (101) 137 (101) 137 (101) 310 (228.6) 310 (228.6) 310 (228.6) 310 (228.6) Screw code 62 Code 62 N·m (lb ft) ± 10 % M8 x 1.25 M10 x 1.5 M12 x 1.75 M12 x 1.75 M14 x 1.5 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5 – – – 34 (25.1) 74 (54.6) 137 (101) 137 (101) 189 (139.4) 310 (228.6) 575 (424.1) 575 (424.1) 680 (501.5) – – – Screw code 62 Code 62 N·m (lb ft) ± 10 % M8 x 1.25 M10 x 1.5 M12 x 1.75 M12 x 1.75 M14 x 1.5 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5 – – – 29 (21.4) 57(42) 100 (73.8) 100 (73.8) 160 (118) 250 (184.4) 500 (368.8) 575 (424.1) 680 (501.5) – – – Torque values for four-bolt flange connections (Metric Screws, Class 8.8) Metric size mm Imperial size in Screw code 61 Code 61 N·m (lb ft) ± 10 % 13 19 25 1/2 3/4 1 M8 x 1.25 M10 x 1.5 M10 x 1.5 29 (21.4) 57(42) 57(42) 32 1-1/4 M10 x 1.5 57(42) 38 51 64 76 89 102 127 1-1/2 2 2-1/2 3 3-1/2 4 5 M12 x 1.75 M12 x 1.75 M12 x 1.75 M16 x 2 M16 x 2 M16 x 2 M16 x 2 100 (73.8) 100 (73.8) 100 (73.8) 250 (184.4) 250 (184.4) 250 (184.4) 250 (184.4) 48017684 02/06/2016 14 INTRODUCTION Torque values for four-bolt flange connections (Inch Screws, Grade 8) Metric size mm Imperial size in Screw code 61 Code 61 N·m (lb ft) ± 10 % Screw code 62 Code 62 N·m (lb ft) ± 10 % 13 19 25 32 38 51 64 76 89 102 127 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 5 5/16-18 3/8-16 3/8-16 7/16-14 1/2-13 1/2-13 1/2-13 5/8-11 5/8-11 5/8-11 5/8-11 34 (25.1) 63 (46.5) 63 (46.5) 97 (71.5) 158 (116.5) 158 (116.5) 158 (116.5) 310 (228.6) 310 (228.6) 310 (228.6) 310 (228.6) 5/16-18 3/8-16 7/16-14 1/2-13 5/8-11 3/4-10 – – – – – 34 (25.1) 63 (46.5) 97 (71.5) 158 (116.5) 310 (228.6) 473 (348.9) – – – – – Tapered thread connection tightening British Standard Pipe Taper (BSPT) thread size (inch) National Pipe Thread Fuel (NPTF) thread size (inch) 1/8-28 1/4-19 3/8-19 1/2-14 3/4-14 1-11 1-1/4-11 1-1/2-11 2-11 1/8-27 1/4-18 3/8-18 1/2-14 3/4-14 1-11 1/2 1-1/4-11 1/2 1-1/2-11 1/2 2-11 1/2 Turns from finger tight 2 2 2 2 2 1.5 1.5 1.5 1.5 - 3 3 3 3 3 2.5 2.5 2.5 2.5 Torque values for banjo bolt connections (Copper washer style) Bolt thread (metric) Hex size (mm) Torque N·m (lb ft) ± 10 % M8 x 1.25 M10 x 1.25 M12 x 1.5 M14 x 1.5 M16 x 1.5 M18 x 1.5 M20 x 1.5 M22 x 1.5 M24 x 1.5 13 17 17 19 22 24 27 32 32 13 (9.6) 16 (11.8) 40 (29.5) 45 (33.2) 48 (35.4) 50 (36.9) 73 (53.8) 73 (53.8) 73 (53.8) 48017684 02/06/2016 15 INTRODUCTION Torque values for O-Ring Face Seals (ORFS) connections SAE dash size UN/UNF thread size 4 5 6 8 10 12 14 16 20 24 9/16-18 5/8-18 11/16-16 13/16-16 1-14 1-3/16-12 1-5/16-12 1-7/16-12 1-11/16-12 2-12 Inch tube OD (mm) Metric tube OD (mm) Hex size (mm) (Reference only) * Swivel nut torque N·m (lb ft) ± 10 % ** Swivel nut torque N·m (lb ft) ± 10 % 6.35 7.94 9.52 12.7 15.88 19.05 22.23 25.4 31.75 38.1 6 8 10 12 16 20 22 25 30 38 17 19 22 24 30 36 41 41 50 60 27 (19.9) 34 (25.1) 44 (32.5) 65 (47.9) 100 (73.8) 150 (110.6) 163 (120.2) 210 (154.9) *** 280 (206.5) *** 375 (276.6) *** 27 (19.9) 34 (25.1) 44 (32.5) 65 (47.9) 100 (73.8) 131 (96.6) 131 (96.6) 131 (96.9) 178 (131.3) 210 (154.9) * High/Medium-pressure applications > 50 bar (725 psi). ** Low-pressure applications < 50 bar (725 psi). *** It is recommended to use a four-bolt flange connection instead of O-Ring Face Seals (ORFS) sizes "16" and up. Torque values for 37 ° flare connections - Joint Industry Council (JIC) SAE dash size UN/UNF thread size Metric tube OD (mm) Inch tube OD (mm) Swivel nut torque N·m (lb ft) ± 10 % 2 3 4 5 6 8 10 12 14 16 20 24 32 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1-1/16-12 1-3/16-12 1-5/16-12 1-5/8-12 1-7/8-12 2-1/2-12 – – 6 8 10 12 16 20 – 25 30/32 38 50 3.18 4.76 6.35 7.94 9.52 12.7 15.88 19.05 22.22 25.4 31.75 38.1 50.8 8.25 (6.1) 11.5 (8.5) 15.5 (11.4) 20 (14.8) 25 (18.4) 52 (38.4) 81 (59.7) 112 (82.6) 133 (98.1) 155 (114.3) 180 (132.8) 225 (166) 348 (256.7) Torque values for 30 ° flare, 60 ° cone connections Nominal size (mm) British Standard Pipe Parallel (BSPP) thread size Hex size (mm) Swivel nut torque N·m (lb ft) ± 10 % 5, 6, 6.3 8, 9, 10 12, 12.5 15, 16, 19 25 31.5, 32 38 50, 51 G 1/4 G 3/8 G 1/2 G 3/4 G1 G 1-1/4 G 1-1/2 G2 17 19 22 30 36 46 50 65 25 (18.4) 34 (25.1) 64 (47.2) 132 (97.4) 196 (144.6) 225 (166) 255 (188.1) 316 (223.1) 48017684 02/06/2016 16 INTRODUCTION Basic instructions - Shop and assembly Shimming For each adjustment operation, select adjusting shims and measure the adjusting shims individually using a micrometer, then add up the recorded values. Do not rely on measuring the entire shimming set, which may be incorrect, or the rated value shown on each shim. Rotating shaft seals For correct rotating shaft seal installation, proceed as follows: 1. Before assembly, allow the seal to soak in the oil it will be sealing for at least thirty minutes. 2. Thoroughly clean the shaft and check that the working surface on the shaft is not damaged. 3. Position the sealing lip facing the fluid. NOTE: With hydrodynamic lips, take into consideration the shaft rotation direction and position the grooves so that they will move the fluid towards the inner side of the seal. 4. Coat the sealing lip with a thin layer of lubricant (use oil rather than grease). Fill the gap between the sealing lip and the dust lip on double lip seals with grease. 5. Insert the seal in its seat and press down using a flat punch or seal installation tool. Do not tap the seal with a hammer or mallet. 6. While you insert the seal, check that the seal is perpendicular to the seat. When the seal settles, make sure that the seal makes contact with the thrust element, if required. 7. To prevent damage to the seal lip on the shaft, position a protective guard during installation operations. O-ring seals Lubricate the O-ring seals before you insert them in the seats. This will prevent the O-ring seals from overturning and twisting, which would jeopardize sealing efficiency. Sealing compounds Apply a sealing compound on the mating surfaces when specified by the procedure. Before you apply the sealing compound, prepare the surfaces as directed by the product container. Spare parts Only use CNH Original Parts or NEW HOLLAND Original Parts. Only genuine spare parts guarantee the same quality, duration, and safety as original parts, as they are the same parts that are assembled during standard production. Only CNH Original Parts or NEW HOLLAND Original Parts can offer this guarantee. When ordering spare parts, always provide the following information: • Machine model (commercial name) and Product Identification Number (PIN) • Part number of the ordered part, which can be found in the parts catalog 48017684 02/06/2016 17 INTRODUCTION Protecting the electronic and/or electrical systems during charging and welding To avoid damage to the electronic and/or electrical systems, always observe the following practices: 1. Never make or break any of the charging circuit connections when the engine is running, including the battery connections. 2. Never short any of the charging components to ground. 3. Always disconnect the ground cable from the battery before arc welding on the machine or on any machine attachment. • Position the welder ground clamp as close to the welding area as possible. • If you weld in close proximity to a computer module, then you should remove the module from the machine. • Never allow welding cables to lie on, near, or across any electrical wiring or electronic component while you weld. 4. Always disconnect the negative cable from the battery when charging the battery in the machine with a battery charger. NOTICE: If you must weld on the unit, you must disconnect the battery ground cable from the machine battery. The electronic monitoring system and charging system will be damaged if this is not done. 5. Remove the battery ground cable. Reconnect the cable when you complete welding. WARNING Battery acid causes burns. Batteries contain sulfuric acid. Avoid contact with skin, eyes or clothing. Antidote (external): Flush with water. Antidote (eyes): flush with water for 15 minutes and seek medical attention immediately. Antidote (internal): Drink large quantities of water or milk. Do not induce vomiting. Seek medical attention immediately. Failure to comply could result in death or serious injury. W0111A Special tools The special tools that NEW HOLLAND suggests and illustrate in this manual have been specifically researched and designed for use with NEW HOLLAND machines. The special tools are essential for reliable repair operations. The special tools are accurately built and rigorously tested to offer efficient and long-lasting operation. By using these tools, repair personnel will benefit from: • Operating in optimal technical conditions • Obtaining the best results • Saving time and effort • Working in safe conditions 48017684 02/06/2016 18 INTRODUCTION General specification - Tractors with Hydrostatic Transmission (HST) Model Boomer 20 Hydrostatic Model Boomer 25 Hydrostatic ENGINE Type Model Engine Gross Horsepower Cylinders Bore Stroke Displacement Compression Ratio Firing Order Low Idle Speed Maximum Speed: High Idle Rated Valve Clearance (Cold) Intake Exhaust Diesel S3L 17 kW (23 Hp) 4 78 mm (3.07 in) 78.5 mm (3.09 in) 1.125 l (69 in³) 22.0:1 1-3-2 970±30 RPM Diesel S3L2 20 kW (27 Hp) 4 78 mm (3.07 in) 92 mm (3.62 in) 1.318 l (80 in³) 20.0:1 1-3-2 970±30 RPM 29000±20 RPM 2700 RPM 2900±20 RPM 2700 RPM 0.020 - 0.050 mm (0.0008 - 0.0020 in) 0.020 - 0.050 mm (0.0008 - 0.0020 in) 0.050 - 0.085 mm (0.0020 - 0.0033 in) 0.050 - 0.085 mm (0.0020 - 0.0033 in) CAPACITIES Fuel Tank 25 l (6.6 US gal) Cooling System 3.8 l (1.0 US gal) Engine Crankcase: With Filter 4 l (1.10 US gal) Rear Axle & Transmission (Includes Hydraulics) 25 l (6.6 US gal) 3.8 l (1.0 US gal) HST Front Axle 20 l (5.28 US gal) 3 l (1 US gal) 4 l (1.10 US gal) 20 l (5.28 US gal) 3 l (1 US gal) COOLING SYSTEM Type Water Pump: Type Drive Belt Deflection Fan Diameter Thermostat: Start to Open Fully Open Radiator Cap Pressurized Liquid with Recirculating Pressurized Liquid with Recirculating Bypass Bypass Centrifugal V-Belt 10 - 12 mm (0.39 - 0.47 in) when 10 kg (22 lb) pressure is applied midway between belt pulleys 356 mm (14 in) Centrifugal V-Belt 10 - 12 mm (0.39 - 0.47 in) when 10 kg (22 lb) pressure is applied midway between belt pulleys 356 mm (14 in) 76.5 °C (170 °F) 90 °C (194 °F) 90 kPa (13 psi) 76.5 °C (170 °F) 90 °C (194 °F) 90 kPa (13 psi) 48017684 02/06/2016 19 INTRODUCTION Model Boomer 20 Hydrostatic Model Boomer 25 Hydrostatic ELECTRICAL SYSTEM Alternator Battery Starting Motor 12 V, Heavy Duty, 50 A 12 V, w/ negative ground, 660 cca BCI Group 34 Solenoid Pre-Engaged Reduction 12 V, Heavy Duty, 50 A 12 V, w/ negative ground, 660 cca BCI Group 34 Solenoid Pre-Engaged Reduction Diesel No. 2-Diesel, Cetane Rating: Minimum 40 No. 1-Diesel, Cetane Rating: Minimum 40 Diesel No. 2-Diesel, Cetane Rating: Minimum 40 No. 1-Diesel, Cetane Rating: Minimum 40 In-Line 19 ° BTDC In-Line 17 ° BTDC FUEL SYSTEM Fuel Type Type of Fuel to Use if Above 4 °C (40 °F) Type of Fuel to Use if Below 4 °C (40 °F) Injection Pump: Type Timing BRAKES Type 2 Disc per Side Wet Disc Wet Disc 223 mm (8.78 in) x 174 mm (6.85 in) 223 mm (8.78 in) x 174 mm (6.85 in) STEERING Type Turns Lock-to-Lock: FWD Front Wheel Toe-In Turning Radius w/o Brakes: FWD Power Power 3 L to R 3.30 R to L 3 L to R 3.30 R to L 0 - 5 mm (0 - 0.20 in) 0 - 5 mm (0 - 0.20 in) 2.5 m (8 ft)Right turn 2.5 m (8 ft) Left turn 2.5 m (8 ft)Right turn 2.5 m (8 ft) Left turn Independent Independent 35 mm (1.4 in) 25.4 mm (1 in) 2603 RPM (2603 RPM) 2660 RPM (2660 RPM) 35 mm (1.4 in) 25.4 mm (1 in) 2603 RPM (2603 RPM) - HST Transmission 2660 RPM (2660 RPM) 12.9 kW (18 Hp) 15.1 kW (21 Hp) 2660 RPM - HST 2660 RPM - HST POWER TAKE-OFF Type Shaft Size: Rear PTO Mid PTO Engine Speed for 540 RPM Rear PTO Operation Engine Speed for 2000 RPM Mid PTO operation Horsepower PTO Observed POWER TAKE-OFF Engine Speed for 2000 RPM Mid PTO Operation 48017684 02/06/2016 20 INTRODUCTION Model Boomer 20 Hydrostatic Direction of Rotation (As viewed from rear of tractor) Rear PTO Mid PTO Model Boomer 25 Hydrostatic Clockwise Clockwise Clockwise Clockwise Open Center Gear 27. l (7 US gal) 14997 kPa (2175.1 psi) Open Center Gear 27. l (7 US gal) 14997 kPa (2175.1 psi) HYDRAULIC LIFT SYSTEM Type Pump Type Pump Capacity System Relief Valve Setting TRANSMISSION SPEEDS (HYDROSTATIC) ( 2700 RPM Engine Rated Speed with ( 2700 RPM Engine Rated Speed with 33 x 12–16.5 Rear tires 33 x 12–16.5 Rear tires Gear Position: Low High Reverse Low Reverse High 0 - 5.23 km/h (0 - 3.251 mph) 0 - 10.69 km/h (0 - 6.64 mph) 0 - 5.23 km/h (0 - 3.251 mph) 0 - 10.69 km/h (0 - 6.64 mph) 0 - 5.23 km/h (0 - 3.25 mph) 0 - 10.69 km/h (0 - 6.64 mph) 0 - 5.23 km/h (0 - 3.25 mph) 0 - 10.69 km/h (0 - 6.64 mph) (5) weights @ 26 kg (60 lb) each (5) weights @ 26 kg (60 lb) each CAST IRON WEIGHTS Front End: With weight extension bracket installed With weight extension bracket installed Rear Wheel: R-4 Tires Optional (3) weights @ 45 kg (100 lb) Optional (3) weights @ 45 kg (100 lb) each each (4) weights (2) per wheel @ 34 kg (75 lb) each NA (4) weights (2) per wheel @ 48 kg (106 lb) each (4) weights (2) per wheel @ 34 kg (75 lb) each NA (4) weights (2) per wheel @ 48 kg (106 lb) each Standard Standard FRONT Turf: Industrial: 23.5 x 8.5–12 4PR, R3 23.5 x 8.5–12 4PR, R4 23.5 x 8.5–12 4PR, R3 23.5 x 8.5–12 4PR, R4 REAR: Turf Industrial 33 x 12.00–16.5 4PR, R3 33 x 12.00–16.5, 4PR, R4 33 x 12.00–16.5 4PR, R3 33 x 12.00–16.5, 4PR, R4 Turf Tires Ag. Tires DRAWBARS Extendible TIRES 48017684 02/06/2016 21 INTRODUCTION Model Boomer 20 Hydrostatic Model Boomer 25 Hydrostatic WHEEL BOLT TORQUES Front Wheel --- Disc-to-Hub: FWD Rear Wheel --- Disc-to Axle 93 - 108 N·m (69 - 80 lb ft) 176 - 196 N·m (130 - 145 lb ft) 93 - 108 N·m (69 - 80 lb ft) 176 - 196 N·m (130 - 145 lb ft) 85 N·m (63 lb ft) 49 - 54 N·m (36 - 40 lb ft) 85 N·m (63 lb ft) 49 - 54 N·m (36 - 40 lb ft) ROPS ATTACHING BOLT TORQUES ROPS to Rear Axle Seat Belt 48017684 02/06/2016 22 INTRODUCTION General specification - Tractor with mechanical transmission Model Boomer 20 Mechanical Model Boomer 25 Mechanical ENGINE Type Model Engine Gross Horsepower Cylinders Bore Stroke Displacement Compression Ratio Firing Order Low Idle Speed Maximum Speed: High Idle Rated Valve Clearance (Cold) Intake Exhaust Diesel S3L 17 kW (23 Hp) @ 2700 RPM 3 78 mm (3.07 in) 92 mm (3.62 in) 1.126 l (68.65 in³) 22.0:1 1–3–2 1000 RPM 2900 RPM 2900 RPM 2700 RPM Diesel S3L2 20 kW (27 Hp) @ 2700 RPM 3 78 mm (3.07 in) 92 mm (3.62 in) 1.318 l (80.4 in³) 22.0:1 1–3–2 1000 RPM 2900 RPM 2900 RPM 2700 RPM 0.25 mm (0.010 in) 0.25 mm (0.010 in) 0.25 mm (0.010 in) 0.25 mm (0.010 in) 25.0 l (6.6 US gal) 3.8 l (4.0 US qt) 25.0 l (6.6 US gal) 3.8 l (4.0 US qt) 4.2 l (4.4 US qt) 24 l (6.3 US gal) 4.2 l (4.4 US qt) 24 l (6.3 US gal) 3.0 l (3.2 US qt) 3.0 l (3.2 US qt) CAPACITIES Fuel Tank Cooling System Engine Crankcase: With Filter Rear Axle & Transmission (Includes Hydraulics) Front Axle COOLING SYSTEM Type Water Pump: Type Drive Belt Deflection Fan Diameter Thermostat: Start to Open Fully Open Radiator Cap Pressurized Liquid with Recirculating Pressurized Liquid with Recirculating Bypass Bypass Centrifugal V-Belt 10 - 13 mm (0.4 - 0.5 in) when 10 kg (22 lb) pressure is applied midway between belt pulleys 340 mm (13.4 in) Centrifugal V-Belt 10 - 13 mm (0.4 - 0.5 in) when 10 kg (22 lb) pressure is applied midway between belt pulleys 340 mm (13.4 in) 76.5 °C (170 °F) 90 °C (194 °F) 90 kPa (13 psi) 76.5 °C (170 °F) 90 °C (194 °F) 90 kPa (13 psi) 12 V, Heavy Duty, 50 A 12 V, w/ negative ground, 560 cca BCI Group 85 Solenoid Pre-Engaged Reduction 12 V, Heavy Duty, 50 A 12 V, w/ negative ground,560 cca BCI Group 85 Solenoid Pre-Engaged Reduction ELECTRICAL SYSTEM Alternator Battery Starting Motor FUEL SYSTEM Fuel Type Diesel Type of Fuel to Use if Above 4 °C No. 2-Diesel, Cetane Rating: (40 °F) Minimum 40 48017684 02/06/2016 23 Diesel No. 2-Diesel, Cetane Rating: Minimum 40 INTRODUCTION Model Boomer 20 Mechanical Type of Fuel to Use if Below 4 °C No. 1-Diesel, Cetane Rating: (40 °F) Minimum 40 Injection Pump: Type In-Line Timing 19 ° BTDC Injector pressure 14700 kPa (2132 psi) Model Boomer 25 Mechanical No. 1-Diesel, Cetane Rating: Minimum 40 In-Line 17 ° BTDC 14700 kPa (2132 psi) BRAKES Type 2 Disc per Side Wet Disc 114 mm (4.5 in) x 84 mm (3.3 in) Wet Disc 114 mm (4.5 in) x 84 mm (3.3 in) Power 3.0 L to R 3.0R to L Right turn 47 - 41 ° (47 - 41 °) Left turn 47 - 41 ° (47 - 41 °) Power 3.0 L to R 3.0R to L Right turn 47 - 41 ° (47 - 41 °) Left turn 47 - 41 ° (47 - 41 °) 0 - 7.65 mm (0 - 0.30 in) 0 - 7.6 mm (0 - 0.30 in) STEERING Type Turns Lock-to-Lock: Turn angle Front Wheel Toe-In Turning Radius w/o Brakes: FWD 2591 mm (102 in) Left turn 2591 mm (102 in) Right turn Steering pump flow 4.0 l/min (1.1 US gpm) Steering System Relief Valve Setting 8826 kPa (1280 psi) 2591 mm (102 in) Left turn 2591 mm (102 in) Right turn 4.0 l/min (1.1 US gpm) 8826 kPa (1280 psi) POWER TAKE-OFF Type Shaft Size: Rear PTO Mid PTO Engine Speed for 540 RPM Rear PTO Operation Engine Speed for 2000 RPM Mid PTO Operatio Horsepower PTO Observed Direction of Rotation (As viewed from rear of tractor) Rear PTO Mid PTO Independent Independent 35 mm (1.4 in) 25.4 mm (1 in) 2430 RPM 35 mm (1.4 in) 25.4 mm (1 in) 2430 RPM 2479 RPM 2479 RPM NA NA Clockwise Clockwise Clockwise Clockwise Open Center Gear 26.0 l/min (6.9 US gpm) 14997 kPa (2175 psi) 650 kg (1433 lb) 480 kg (1058 lb) Open Center Gear 26.0 l/min (6.9 US gpm) 14997 kPa (2175 psi) 650 kg (1433 lb) 480 kg (1058 lb) HYDRAULIC LIFT SYSTEM Type Pump Type Pump Capacity System Relief Valve Setting Lift capacity at lift arm ball ends Lift capacity at 609 mm (24 in) behind lift arm ball ends TRANSMISSION SPEEDS (Mechanical) Gear Position: Forward 1st Low Forward 2nd Low ( 2700 RPM Engine Rated Speed ( 2700 RPM Engine Rated Speed 1.25 km/h (0.78 mph) 2.11 km/h (1.31 mph) 1.25 km/h (0.78 mph) 2.11 km/h (1.31 mph) 48017684 02/06/2016 24 INTRODUCTION Model Boomer 20 Mechanical Forward 3rd Low Reverse Low Forward 1st High Forward 2nd High Forward 3rd High Reverse High Model Boomer 25 Mechanical 4.34 km/h (2.70 mph) 2.24 km/h (1.39 mph) 5.18 km/h (3.22 mph) 8.75 km/h (5.44 mph) 18.02 km/h (11.20 mph) 9.30 km/h (5.78 mph) 4.34 km/h (2.70 mph) 2.24 km/h (1.39 mph) 5.18 km/h (3.22 mph) 8.75 km/h (5.44 mph) 18.02 km/h (11.20 mph) 9.30 km/h (5.78 mph) (5) weights @ 26 kg (60 lb) each (5) weights @ 26 kg (60 lb) each NA NA NA NA Standard Standard 23x10.5–12, 107 A8TL,R1 23 x 8.50–12, 6PR, R3 23 x 8.50–12, 6PR, R4 250/60–12, 110 A6 220/55R12, 82A8 6–12, 4PR 6–12, 4PR 23x10.5–12, 107 A8TL,R1 23 x 8.50–12, 6PR, R3 23 x 8.50–12, 6PR, R4 250/60–12, 110 A6 220/55R12, 82A8 6–12, 4PR 6–12, 4PR 255/75–15.3, 119 A8TL,R1 33 x 12.50–16.5, 4PR, R3 12.00–16.5, 10PR, R4 380/55–17, 138 A8 280/70R16, 112A8 9.5–16, 6PR 9.5–16, 6PR 255/75–15.3,, 119 A8TL,R1 33 x 12.50–16.5, 4PR, R3 12.00–16.5, 10PR, R4 380/55–17, 138 A8 280/70R16, 112A8 9.5–16, 6PR 9.5–16, 6PR 93 - 108 N·m (69 - 80 lb ft) 177 - 196 N·m (131 - 145 lb ft) 93 - 108 N·m (69 - 80 lb ft) 177 - 196 N·m (131 - 145 lb ft) CAST IRON WEIGHTS Front End: With weight extension bracket installed. Rear Wheel: R-4 Tires Turf Tires DRAWBARS Extendible TIRES FRONT Ag Turf: Industrial: Flotation Garden Pro AG Narrow 1 AG Narrow 2 REAR: Ag Turf Industrial Flotation Garden Pro AG Narrow 1 AG Narrow 2 WHEEL BOLT TORQUES Front Wheel --- Disc-to-Hub: FWD Rear Wheel --- Disc-to Axle ROPS ATTACHING BOLT TORQUES ROPS to Rear Axle Seat Belt 85 N·m (63 lb ft) 49 N·m (36 lb ft) 85 N·m (63 lb ft) 49 N·m (36 lb ft) 48017684 02/06/2016 25 INTRODUCTION General specification Fatty Acid Methyl Ester Biodiesel (Biodiesel Fuel) consists of a family of fuels derived from vegetable oils treated with methyl esters. NOTICE: Biodiesel Fuel blends are approved for your engine only if they comply with EN14214 Specification Standards or ASTM D6751. NOTICE: It is imperative that you check which blend is approved for your engine with your NEW HOLLAND dealer. Be aware that the use of Biodiesel Fuel that does not comply with the Standards mentioned above could lead to severe damage to the engine and fuel system of your machine. The use of fuels that are not approved may void NEW HOLLAND Warranty coverage. Biodiesel fuel usage conditions NOTICE: The Biodiesel Fuel must meet the fuel Specification mentioned above. Biodiesel Fuel must be purchased from a trusted supplier that understands the product and maintains good fuel quality. Biodiesel Fuel must be pre-blended by the supplier. Mixing Biodiesel Fuels on-site can result incorrect mixture that can lead to problems with both engine and fuel system. Engine performance is affected by the use of Biodiesel Fuel. There may be up to 12 % reduction in power or torque depending on the blend used. NOTICE: DO NOT modify the engine and/or injection pump settings to recover the reduced performance. The reduced power must be accepted if using any Biodiesel Fuel blend. Some modification may be required to allow your engine to run Biodiesel Fuel. Consult you dealer for complete information on these modifications. Biodiesel Fuel has a higher cloud point than Diesel Fuel. NOTICE: The use of high Biodiesel Fuel blends are not recommended in cold weather conditions. With Biodiesel Fuels, it may be necessary to change the engine oil, engine oil filter and fuel filter elements more frequently than with Diesel Fuels. Biodiesel Fuel can remove rust and particles from the inside of on-site fuel storage tanks that would normally adhere to the sides of the tank. Like particle deposits that commonly occur with Diesel Fuel, these particles can become trapped by the machine fuel filters, causing blockage and shortening filter life. In cold weather, this is more likely to happen. Consult your NEW HOLLAND dealer for information on cold weather operation and proper maintenance intervals when using any Biodiesel Fuel blend. When handling Biodiesel Fuel, care must be taken not to allow water into the fuel supply. Biodiesel Fuel will actually attract moisture from the atmosphere. Fuel tanks must be kept as full as possible to limit the amount of air and water vapors in them. It may be necessary to drain the fuel filter water tap more frequently. Potential oxidation and stability could be a problem with the fuel stored in the machine. NOTICE: Machines must not be stored for more than three months with Biodiesel Fuel blends in the fuel system. If long storage periods are necessary, the engine must run on Diesel Fuel for 20 hours to flush the Biodiesel Fuel out of the engine fuel system prior to storage. NOTICE: Biodiesel Fuel must not be stored in on-site storage tanks for more than three months. Any spillage of Biodiesel Fuel must be cleaned up immediately before it can cause damage to the environment and the paint finish of the machine. Before using Biodiesel Fuel blends you should consult with your dealer to receive full information about the approved blend for your machine and any detailed conditions of its usage. NOTICE: Be aware that not fulfilling the requirements and conditions of Biodiesel Fuel usage will void your machine’s NEW HOLLAND Warranty coverage. 48017684 02/06/2016 26 INTRODUCTION Dimension Model Boomer 20 Model Boomer 25 (1) - LENGTH: FWD: 2632 mm (103.6 in) 2632 mm (103.6 in) 2500 mm (98.4 in) 2500 mm (98.4 in) 2110 mm (83.1 in) 1705 mm (67.1 in) 2110 mm (83.1 in) 1705 mm (67.1 in) 2127 mm (83.7 in) 1722 mm (67.8 in) 2127 mm (83.7 in) 1722 mm (67.8 in) 2125 mm (83.6 in) 1720 mm (67.7 in) 2125 mm (83.6 in) 1720 mm (67.7 in) 2147 mm (84.5 in) 1742 mm (68.6 in) 2147 mm (84.5 in) 1742 mm (68.6 in) 2110 mm (83 in) 1742 mm (68.6 in) 2110 mm (83 in) 1742 mm (68.6 in) 2123 mm (84 in) 1742 mm (68.6 in) 2123 mm (84 in) 1742 mm (68.6 in) 2123 mm (84 in) 1742 mm (68.6 in) 2123 mm (84 in) 1742 mm (68.6 in) (2) - WHEEL BASE: FWD (3) - Top of ROPS - Folding: Ag Tires: 255/75-15.3 Up Position Down Position Ind. Tires: 12.00 x 16.5 Up Position Down Position Turf Tires: 33x 12.50-16.5 Up Position Down Position Flotation Tires: 380/55-17 Up Position Down Position Garden Pro: 280/70R16 Up Position Down Position AG Narrow 1: 9.5–16 Up Position Down Position AG Narrow 2: 9.5–16 Up Position Down Position (4) - WIDTH: Rear Axle - Outside to Outside of tire: Ag Tires: 255/75-15.3 Ind. Tires: 12.00 x 16.5 Turf Tires: 33x 12.50-16.5 Flotation Tires: 380/55-17 Garden Pro: 280/70R16 AG Narrow 1: 9.5–16 AG Narrow 2: 9.5–16 1236 mm (48.7 in) 1236 mm (48.7 in) 1276 mm (50.2 in) 1276 mm (50.2 in) 1276 mm (50.2 in) 1276 mm (50.2 in) 1392 mm (54.8 in) 1392 mm (54.8 in) 1180 mm (46 in) 1180 mm (46 in) 1146 mm (0.0 in) 1146 mm (0.0 in) 1226 mm (48 in) 1226 mm (48 in) 48017684 02/06/2016 27 INTRODUCTION Model Boomer 20 Model Boomer 25 (5) - MINIMUM GROUND CLEARANCE (under drawbar support): Ag Tires: 255/75-15.3 Ind. Tires: 12.00 x 16.5 Turf Tires: 33x 12.50-16.5 Flotation Tires: 380/55-17 Garden Pro: 280/70R16 AG Narrow 1: 9.5–16 AG Narrow 2: 9.5–16 225 mm (8.86 in) 225 mm (8.86 in) 242 mm (9.53 in) 242 mm (9.53 in) 240 mm (9.45 in) 240 mm (9.45 in) 262 mm (10.31 in) 262 mm (10.31 in) 220 mm (9 in) 220 mm (9 in) 238 mm (9 in) 238 mm (9 in) 238 mm (9 in) 238 mm (9 in) 48017684 02/06/2016 28 INTRODUCTION 76114213 1 48017684 02/06/2016 29 INTRODUCTION Consumables Lubricant Type and Description NEW HOLLAND AMBRA SUPER GOLD 10W-30 Engine Oil NEW HOLLAND AMBRA SUPER GOLD 15W-40 NEW HOLLAND AMBRA MULTI G 134™ HYDRAULIC Transmission/Hydraulic Oil TRANSMISSION OIL NEW HOLLAND AMBRA F200A HYDRAULIC FLUID NEW HOLLAND AMBRA Front Axle/Gear Oil HYPOIDE 90 NEW HOLLAND AMBRA Grease GR-9 MULTI-PURPOSE GREASE Ethylene Glycol Coolant Coolant Concentrate Part Number 104104A1 139033A1 104106A1 407410R2 139034A1 407414R2 Container Size 0.946 l (1 US qt) 3.785 l (1 US gal) 18.93 l (5 US gal) 0.946 l (1 US qt) 3.785 l (1 US gal) 18.93 l (5 US gal) 404787A1 18.93 l (5 US gal) B17805 18.93 l (5 US gal) 87299775 87299136 0.946 l (1 US qt) 18.93 l (5 US gal) 132096A1 Tube 14 oz 48017684 02/06/2016 30 INTRODUCTION Capacities CAPACITIES Fuel Tank Cooling System Engine Crankcase: With Filter Rear Axle & Transmission (Includes Hydraulics) Front Axle 25.0 l (6.6 US gal) 3.8 l (4.0 US qt) 25.0 l (6.6 US gal) 3.8 l (4.0 US qt) 4.2 l (4.4 US qt) 24 l (6.3 US gal) 4.2 l (4.4 US qt) 24 l (6.3 US gal) 3.0 l (3.2 US qt) 3.0 l (3.2 US qt) 48017684 02/06/2016 31 INTRODUCTION Product identification The machine and major components are identified with Product Identification Number (PIN) plates. You should supply the PIN plate data to your NEW HOLLAND dealer when requesting parts or service, and also to identify the machine in case of theft. Product Identification Number (PIN) plate The machine PIN Plate (1) is located on the left-hand side of the frame. NHIL16CT00203AA 1 NHIL13CT00853AA 2 NHIL16CT00204AA 3 Engine Product Identification Number (PIN) plate The engine PIN plate (2) is located on the rearward end of the engine valve cover. 48017684 02/06/2016 32 INTRODUCTION Roll Over Protective Structure (ROPS) Product Identification Number (PIN) The Roll Over Protective Structure (ROPS) PIN plate (3) is located on the ROPS cross brace behind the fuel tank. 48017684 02/06/2016 33 NHIL13CT00142BA 4 NHIL13CT00854AA 5 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com ">

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Key features
- Hydrostatic transmission
- Powerful engine
- Three-point hitch
- Rear PTO
- Compact size
- Versatile operation
Frequently asked questions
The Boomer 20 uses a S3L2 engine. Refer to the manual for specific details.
The hydrostatic transmission is controlled by pedals and allows for seamless speed and direction changes.
The PTO (Power Take-Off) is used to power implements like mowers, tillers, and other attachments.