New Holland W270C Tier 4 Service Manual
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New Holland W270C Tier 4 Service Manual

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SERVICE MANUAL
W270C / W300C
Wheel Loader
Tier 4
Print No. 84547255C

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  • Page 1 SERVICE MANUAL W270C / W300C Wheel Loader Tier 4 Print No. 84547255C...
  • Page 2 SERVICE MANUAL W270C W300C 84547255C 15/03/2013 Find manuals at https://best-manuals.com...
  • Page 3 Contents INTRODUCTION Engine..................10 [10.001] Engine and crankcase ............. 10.1 [10.202] Air cleaners and lines .
  • Page 4 [39.100] Frame ................39.1 Steering..................
  • Page 5 [55.051] Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls....55.18 [55.050] Heating, Ventilation, and Air-Conditioning (HVAC) control system....55.19 [55.047] Steering control system .
  • Page 6 INTRODUCTION 84547255C 15/03/2013 Find manuals at https://best-manuals.com...

  • Page 7: Table Of Contents

    Contents INTRODUCTION International symbols – Conversion factors ........... . 3 Torque .

  • Page 8: International Symbols - Conversion Factors

    INTRODUCTION International symbols – Conversion factors Metric to U.S. Multiply To obtain Sq. meter Square foot 10.763 91 Area Hectare 2.471 05 Acre Newton 3.596 942 Ounce force Force Newton 0.224 809 Pound force Millimeter 0.039 370 Inch Length Meter 3.280 840 Foot Kilometer...
  • Page 9 INTRODUCTION Multiply To obtain Cubic inch 16.387 06 Cubic centimeter Cubic foot 0.028 317 Cubic meter Cubic yard 0.764.555 Cubic meter Ounce (US fluid) 29.573 53 Milliliter Volume Quart (US liquid) 0.946 353 Litre Quart (Imperial) 1.136 523 Litre Gallon (US) 3.785 412 Litre Gallons (Imperial)

  • Page 10: Torque

    INTRODUCTION Torque Decimal hardware Use the torques in this chart when special torques are not given. These torques apply to fasteners with both UNC and UNF threads as received from suppliers dry, or when lubricated with engine oil. Not applicable if special graphities, Molydisulfide greases, or other extreme pressure lubricants are used.
  • Page 11 INTRODUCTION Metric hardware Use the following torques when specifications are not given. These values apply to fasteners with coarse threads as received from supplier, plated or unplated, or when lubricated with engine oil. These values do not apply if graphite or Molydisulfide grease or oil is used. Grade 8.8 Bolts, Nuts and Studs 3 - 4 N·m (27 - 35 lb in) 7 - 8 N·m (62 - 71 lb in)
  • Page 12 INTRODUCTION Grade 12.9 Bolts, Nuts and Studs Usually the torque values specified for grade 10.9 fasteners can be used satisfactorily on grade 12.9 fasteners. Steel hydraulic fittings 37°flare fitting Torque Tube OD hose ID Thread size 6.4 mm (0.25 in) 8 - 16 N·m (71 - 142 lb in) 7/16-20 7.9 mm (0.31 in)
  • Page 13 INTRODUCTION Steel hydraulic fittings O-ring face seal end O-ring boss end fitting or lock nut Nom. SAE dash Tube OD Thread size Torque Thread size Torque size 14 - 16 N·m (124 23 - 27 N·m (204 –4 6.4 mm (0.25 in) 9/16-18 7/16-20 - 142 lb in)

  • Page 14: Basic Instructions

    ENGINE OIL 15W-40 is recommended for your engine. This oil insures correct lubrication of your engine in all working conditions. See General specification () to choose the correct oil for climate/temperatures. If NEW HOLLAND A CJ-4 MBRA NITEK ENGINE OIL 15W-40 cannot be obtained, use only oil of the API CI4 category.
  • Page 15 MBRA HYDRAULIC TRANSMISSION OIL See General specification (). Grease The type of grease to use depends on ambient temperature such as: NEW HOLLAND A GR 75 MD. MBRA Environment Before you service this machine and dispose of oil, fluids, and lubricants, obey environmental regulations. Do not drain oil or fluids on to the ground or into containers that leak.

  • Page 16: Torque - Drive Shafts, Center Bearing, And Universal Joints

    INTRODUCTION Torque – Drive shafts, center bearing, and universal joints 136 - 149 N·m (100 - 110 lb ft) Center, rear and front drive shaft bolts Lock nut for yoke on front drive shaft 339 - 373 N·m (250 - 275 lb ft) 84547255C 15/03/2013...

  • Page 17: Capacities

    INTRODUCTION Capacities W270C Engine NEW HOLLAND A CJ-4 MBRA NITEK ENGINE OIL Type of oil SAE 15W-40 Capacity (with filter change) 28.5 l (30.1 US qt) Cooling system System capacity 56.8 l (60.0 US qt) Fuel system System capacity 473.0 l (125.0 US gal)

  • Page 18: Capacities

    INTRODUCTION Capacities W300C Capacities and specifications Engine Type of oil NEW HOLLAND A CJ-4 SAE 15W-40 MBRA NITEK ENGINE OIL Capacity (with filter change) 28.5 l (30.1 US qt) Cooling system System capacity 56.8 l (60 US qt) Fuel system...

  • Page 19: General Specification

    INTRODUCTION General specification Hydraulic oil temperature chart LELI12WL30001EA Transmission oil temperature chart LEIL12WHL0011BA 84547255C 15/03/2013...
  • Page 20 INTRODUCTION Engine oil temperature chart LEIL12WHL0018BA 84547255C 15/03/2013...
  • Page 21 INTRODUCTION 84547255C 15/03/2013...
  • Page 22 SERVICE MANUAL Engine W270C W300C 84547255C 15/03/2013...
  • Page 23 Contents Engine - 10 [10.001] Engine and crankcase ............. . . 10.1 W270C , W300C [10.202] Air cleaners and lines .
  • Page 24 Engine - 10 Engine and crankcase - 001 W270C W300C 84547255C 15/03/2013 10.1 [10.001] / 1...
  • Page 25 Contents Engine - 10 Engine and crankcase - 001 TECHNICAL DATA Engine General specification ............... 3 FUNCTIONAL DATA Engine Overview –...

  • Page 26: General Specification

    Engine - Engine and crankcase Engine - General specification Engine W/4 speed trans. Idle RPM 870 - 930 RPM Alternate low idle 570 - 630 RPM Alternate accelerated idle 1170 - 1230 RPM Maximum no load 2162 - 2212 RPM gear 1970 RPM - 2 gear 2075 RPM Converter stall...

  • Page 27: Overview - Stall Tests

    Engine - Engine and crankcase Engine - Overview – Stall tests Instrument cluster displays 1. With the engine running, press the up or down key and scroll through the information screens and trip screens. The following sequence is using the down key only.
  • Page 28 Engine - Engine and crankcase 5. Push the down button again and the “Info 3” screen. This screen displays the temperature in Fahrenheit or Celsius of the transmission oil, hydraulic oil, sump oil, and the Urea level. LELI12WL30053AA 6. Push the down key again to display the “info 4” screen. This screen display the voltage level, turbocharger air temperature, Urea temperature and Urea level.

  • Page 29: Remove - Engine

    Engine - Engine and crankcase Engine - Remove – Engine NOTE: Put caps on the fittings and plugs in the hoses to prevent foreign material from entering the system when dis- connecting fuel lines or hydraulic hoses. Park the machine on a level surface and lower the bucket to the ground.
  • Page 30 Engine - Engine and crankcase Remove the mounting bolts on the exhaust stack hood. Attach lifting equipment to the exhaust stack. Remove the exhaust stack hood (1). LELI12WL30008AB Remove the SCR line support bracket (1). LELI12WL30009AB Disconnect the deaeration tank overflow hose (2). Remove the P-clamps (1) that secure the overflow hose to the wall and brackets.
  • Page 31 Engine - Engine and crankcase Remove the hydraulic oil lines (1). LELI12WL30012AB Remove the after air cooler tube (1). Remove the bulkheads (2). LELI12WL30013AB Remove the oil dipstick P-clamp (3). Pull the oil dip- stick tube (1) through the wall. Label and disconnect the hood lift strut electrical connector (2).
  • Page 32 Engine - Engine and crankcase Label and disconnect the humidity sensor electrical connector (1). Remove the turbo inlet tube (2). Label and disconnect the air filter restriction sensor electri- cal connector (3). LELI12WL30016AB Remove the wire harness P-clamp (1). Loosen the hose clamp on the air box snorkel (2). Disconnect the air box snorkel (3).
  • Page 33 Engine - Engine and crankcase Remove the lower radiator tube (1). LELI12WL30020AB Attach lifting equipment to the engine wall. Remove the engine wall’s hold-down bolts. Lift and remove the engine wall. LELI12WL30021AA Remove the turbo exhaust tube (1). LELI12WL30022AB Disconnect the SCR coolant solenoid heater hose (1).
  • Page 34 Engine - Engine and crankcase Remove two bolts (2), washers (3), and nuts (4). Remove the air box snorkel (1). LELI12WL30024AB Disconnect the inlet and outlet heater core heater hoses (1). LELI12WL30025AB Disconnect the starter battery cables (1) and starter switch wire (2).
  • Page 35 Engine - Engine and crankcase Label and disconnect the engine control module electrical connector (1). LELI12WL30028AB Disconnect the fuel return line (1). Disconnect the battery positive wire (2) on the air grid heater. LELI12WL30029AB Disconnect the engine ground wires (1). Remove the wire harness P-clamp (2).
  • Page 36 Engine - Engine and crankcase Label and disconnect the A/C compressor electrical connector (1). Label and disconnect the A/C pressure switch electrical connector (4). Remove the alternator power wire (3). Label and discon- nect the bulk electrical connector (5). Remove the A/C compressor (2). Position the A/C com- pressor (2) away from the engine.
  • Page 37 Engine - Engine and crankcase Remove the hydraulic oil return tube P-clamp (1). Position the hydraulic oil return tube away from the con- verter housing cover plate. LELI12WL30036AB Remove the converter housing cover plate (1). LELI12WL30037AB Remove the flex plate bolts (1). LELI12WL30038AB Remove the harmonic balancer (1).
  • Page 38 Engine - Engine and crankcase Remove the front engine mounts (1) and engine mount plate (2). LELI12WL30040AB Remove the bell housing bolts (1). LELI12WL30041AD Remove the engine. LELI12WL30035AA 84547255C 15/03/2013 10.1 [10.001] / 15...

  • Page 39: Install

    Engine - Engine and crankcase Engine - Install Carefully lower the engine into the chassis. LELI12WL30035AA Install the bell housing bolts (1). Tighten the bell housing bolts (1) to a torque of 54 - 60 N·m (40 - 44 lb ft). LELI12WL30041AB Install the engine mount plate (5) and the engine mount brackets (1), but do not tighten the bolts to...
  • Page 40 Engine - Engine and crankcase Install the flex plate bolts (1). Tighten the flex plate bolts (1) to a torque of 33 - 41 N·m (24 - 30 lb ft). LELI12WL30044AB Apply DOW 732 RTV SILICONE CLEAR to the con- verter housing cover plate (1).
  • Page 41 Engine - Engine and crankcase Install the air box snorkel (1). Install two bolts (2), washers (3), and nuts (4). LELI12WL30024AB Connect the SCR coolant solenoid heater hose (1). LELI12WL30023AB Install the turbo exhaust tube (1). LELI12WL30022AB Remove lifting equipment from the engine. LELI12WL30035AA 84547255C 15/03/2013 10.1 [10.001] / 18...
  • Page 42 Engine - Engine and crankcase Install the engine wall. LELI12WL30021AA Install the lower radiator tube (1). LELI12WL30020AB Install the air box. LELI12WL30019AA Install the wire harness P-clamp (1). Connect the air box snorkel (3). Tighten the hose clamp on the air box snorkel (2).
  • Page 43 Engine - Engine and crankcase Install the lower, right panel (1) on the engine wall. LELI12WL30018AB Install the turbo inlet tube (2). Connect the humidity sensor electrical connector (1). Connect the air filter restriction sensor electrical connector (3). LELI12WL30016AB Install the upper radiator tube (2). Install the before air cooler tube (1).
  • Page 44 Engine - Engine and crankcase Install the wire harness P-clamps (1). LELI12WL30033AB Install the engine serpentine belt (1). LELI12WL30031AB Install the A/C compressor (2). Connect the A/C compressor electrical connector (1). Connect the A/C pressure switch electrical connector (4). Connect the alternator power wire (3). Connect the bulk electrical connector (5).
  • Page 45 Engine - Engine and crankcase Connect the fuel return line (1). Connect the battery positive wire (2) on the air grid heater. LELI12WL30029AB Connect the engine control module electrical con- nector (1). LELI12WL30028AB Install the crank case ventilation/fuel filter bracket as- sembly.
  • Page 46 Engine - Engine and crankcase Connect the hood lift strut electrical connector (2). Slip the oil dipstick tube (1) through the engine wall. Install the dipstick tube P-clamp (3). LELI12WL30014AB Install the bulkheads (2). Install the after air cooler tube (1). LELI12WL30013AB Install the hydraulic lines (1).
  • Page 47 Engine - Engine and crankcase Install the P-clamps (2) and overflow tube (1) to the engine wall, left bracket, and deaeration tank (3). LELI12WL30045AB Install the SCR line support bracket (1). LELI12WL30009AB Lower the exhaust stack hood (1) in front of the en- gine wall and onto the left bracket, right bracket, and hydraulic oil tank.

  • Page 48: Prepare - Stall Tests

    Engine - Engine and crankcase Engine - Prepare – Stall tests During these tests the engine runs at full throttle and works against the torque converter, the hydraulic system, or both the torque converter and the hy- draulic system. The results of these tests will show if the cause of poor performance is one or more of the following: Engine...

  • Page 49: Prepare - Stall Tests - Heat The Oil (Torque Converter)

    Engine - Engine and crankcase Engine - Prepare – Stall tests - Heat the oil (torque converter) Sit in the seat. Start the engine and run the engine at low idle. To measure the oil temperature with the instrument cluster: Press the up or down arrow key.

  • Page 50: Prepare - Stall Tests - Heat The Oil (Hydraulic System)

    Engine - Engine and crankcase Engine - Prepare – Stall tests - Heat the oil (hydraulic system) Apply the parking brake. Start the engine and run at full throttle. To measure the oil temperature with the instrument cluster: Press the up or down arrow key. Stop at the info screen with the temperatures that need to be monitored are on.

  • Page 51: Service Instruction - Stall Tests (Power Mode Selection)

    Engine - Engine and crankcase Engine - Service instruction – Stall tests (power mode selection) After the oil temperatures have been raised to oper- ating temperatures the power mode must be set to “Auto”. Press and hold the confirmation “enter” button for 2 s to arrive at the above service screen.

  • Page 52: Test - Stall Tests

    Engine - Engine and crankcase Engine - Test – Stall tests Test No. 1 - Torque converter and hydraulic stall together Sit in the seat. Start the engine and run the engine at low idle. Press the brake pedal, release the park brake, shift into Forward.
  • Page 53 Engine - Engine and crankcase Understanding the results of test No. 2 If the engine speed was as specified, the engine, torque converter and transmission are probably good. If the engine speed was more than specified, the problem can be in the torque converter or the trans- mission.
  • Page 54 Index Engine - 10 Engine and crankcase - 001 Engine - General specification ............... 3 Engine - Install .
  • Page 55 84547255C 15/03/2013 10.1 [10.001] / 32...
  • Page 56 Engine - 10 Air cleaners and lines - 202 W270C W300C 84547255C 15/03/2013 10.2 [10.202] / 1...
  • Page 57 Contents Engine - 10 Air cleaners and lines - 202 SERVICE Air cleaner Assemble – Primary/secondary filter element ..........3 Disassemble –...
  • Page 58 Engine - Air cleaners and lines Air cleaner - Assemble – Primary/secondary filter element Install new secondary filter element by inserting it into positioning slot. NOTE: Make sure filter element is firmly seated into hous- ing. LELI12WL30137AB Install new primary filter element by sliding it down into housing.
  • Page 59 Engine - Air cleaners and lines Turn master electric power switch “ON”. Clear any fault codes. Start machine and confirm problem has been corrected. LELI12WL30110AB 84547255C 15/03/2013 10.2 [10.202] / 4...
  • Page 60 Engine - Air cleaners and lines Air cleaner - Disassemble – Primary/Secondary filter element Raise engine compartment hood using controls lo- cated behind access cover (1). Air filter housing/el- ement (2) is located in main engine compartment on right hand side of engine. LELI12WL30133BB Turn master electric switch “OFF”.
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