Part of the New Holland Repair Manuals.
A W230C throws a transmission temperature fault halfway through a stockpile shift, or one bucket function quits while the lift arms still work. This is the New Holland service manual for the W190C and W230C Tier 4A (interim) wheel loaders, part number 47673351.
It covers builds with the 4-speed and the 5-speed transmission, plus both XT and Z-Bar linkage. Inside are the engine with SCR and EGR/DPF aftertreatment, powershift and torque converter stall testing, axles and brakes. It also has full hydraulic schematics, electrical frames 01 to 33 and fault codes for the ECU, RCU, transmission and cluster.
The loader valve relief settings, brake accumulator cut-in and cut-out pressures and tire pressures for both models are printed in their sections, next to the procedures that use them.
What's Inside This New Holland W190C, W230C Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 1-29 | Safety Rules, Personal Safety, Servicing Precautions, Biodiesel Fuel, Hydraulic Contamination, Product Identification |
| Engine | 30-197 | Engine Removal and Installation, Engine Testing, Air Cleaners, SCR Exhaust Treatment, EGR/DPF Exhaust Treatment, Cooling System, Fan Drive, Lubrication System |
| Transmission | 198-347 | Powershift Transmission, Torque Specifications, Clutches, Hydraulic Control Unit, Speed Sensors, Internal Components, Torque Converter, Stall Testing |
| Four-Wheel Drive System | 348-371 | Front, Center and Rear Drive Shafts, Engine-To-Transmission Drive Shaft, Carrier Bearing, Universal Joints |
| Front Axle | 372-503 | Powered Front Axle, Axle Specifications, Bevel Gear Backlash, Differential Removal and Overhaul, Final Drive Hubs, Wheel Hub Inspection |
| Rear Axle | 504-585 | Powered Rear Axle, Axle Lubrication, Bevel Gear Backlash, Differential Overhaul, Planetary Final Drives, Wheel Hub Removal and Installation |
| Brakes and Controls | 586-675 | Service Brakes, Brake Pump, Brake Pedal Valve, Brake Modulation Testing, Accumulators, Brake Bleeding, Brake Discs, Parking Brake |
| Hydraulic Systems | 676-887 | Hydraulic Schematics, Contamination Control, Reservoir and Filters, Variable Displacement Pumps, Pilot System, Hydraulic Fan Drive, Loader Valves and Cylinders, Quick Coupler |
| Frames | 888-909 | Articulation Pivot Torque, Pivot Bearings, Loader Frame Removal and Installation, Pivot Disassembly and Assembly |
| Steering | 910-1015 | Steering Pressure Adjustment, Joystick Steering, Steering Valves, Priority Valves, Circuit Relief Valves, Steering Cylinders, Auxiliary Steering Pump and Motor |
| Wheels and Tires | 1016-1029 | Front and Rear Tire Pressures, Tire Service, Wheel Installation, Wheel Bolt Tightening |
| Cab Climate Control | 1030-1079 | Refrigerant Charge, Pressure Testing, HVAC Troubleshooting, Compressor, Expansion Valve, Evaporator and Heater Core, Condenser, Receiver Drier |
| Electrical Schematics and Connectors | 1080-1264 | Electrical Schematic Frames, Wire Information, Connector Lists, Engine Control, Transmission Control, Lighting, HVAC and Joystick Steering Circuits |
| Alternator, Battery and Emissions Electrics | 1265-1346 | Alternator, Battery Testing and Charging, Fuel Level Sender, DEF Supply and Dosing Modules, NOx Sensors, NH3 Sensor, EGR Temperature Sensors |
| Cooling, Brake, Cab and Instrument Electrics | 1347-1478 | Coolant Sensor, Brake Switches and Solenoids, Cab Controls, HVAC Controls, Steering Electronics, Camera, Wiper and Washer, Lighting, Instrument Cluster |
| Fault Codes - Transmission, Brakes, Steering and Cluster | 1479-1739 | Fault Code Retrieval, Transmission Oil Temperature, Brake and Steering Pressure, Ride Control, Clutch and Speed Sensor Faults, Power Supply, CAN, Hour Meter |
| Fault Codes - Engine Control Module (ECU) | 1740-2242 | ECU Diagnostics, SCR Temperature Sensors, NH3 and NOx Sensors, DEF Dosing and Inducement, Fuel Rail Pressure, Engine Speed Sensors, Air and Exhaust Sensors, CAN Communication |
| Fault Codes - RCU and Fault Code Index | 2243-2257 | RCU Supply Fault, Short-To-Ground Testing, Harness and Connector Inspection, Fault Code Index |
| Front Loader and Bucket | 2258-2267 | Bucket Tooth Bolt Torque, Tooth Point Removal and Installation, Bucket Tooth Replacement |
| Platform, Cab and Bodywork | 2268-2300 | Cab Inspection, Cab Glazing Replacement, Operator Protections Removal and Installation |
| Special Tool Index | 2301-2302 | Special Tool Part Numbers, Tool Names, Referenced Service Procedures |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cooling system capacity | 30.0 L (7.9 US gal) | p. 139 |
| Refrigerant charge | 1700 g (60.0 oz) | p. 1033 |
| Engine low idle | 870 RPM to 930 RPM | p. 33 |
| Maximum no-load RPM, W190C (5-speed transmission) | 2100 RPM to 2155 RPM | p. 33 |
| Maximum no-load RPM, W230C (5-speed transmission) | 2135 RPM to 2185 RPM | p. 33 |
| Brake pump output | 42 - 45 L/min (11 - 12 US gpm) at 172 bar (2494 psi) | p. 590 |
| Brake accumulator valve cut-in pressure | 157 - 167 bar (2276 - 2422 psi) | p. 590 |
| Brake accumulator valve cut-out pressure | 190 - 196 bar (2755 - 2842 psi) | p. 590 |
| Hydraulic reservoir, W190C | 90 l (23.8 US gal) | p. 697 |
| Hydraulic reservoir, W230C | 108.5 l (28.7 US gal) | p. 703 |
| Loader main relief valve setting (XT and Z-Bar) | 248 - 252 bar (3596 - 3654 psi) | p. 783 |
| Bucket A port relief (XT and Z-Bar) | 152 bar (2204 psi) | p. 783 |
| Bucket B port relief (XT and Z-Bar) | 290 bar (4205 psi) | p. 783 |
| Front tire pressure, W190C, 23.5R X 25 Radial L3 | 3.4 bar (49 psi) | p. 1019 |
| Front tire pressure, W230C, 23.5R X 25 Radial L3 | 4.5 bar (65 psi) | p. 1019 |
| Rear tire pressure, W190C, 23.5R X 25 Radial L3 | 2.8 bar (40 psi) | p. 1025 |
| Rear tire pressure, W230C, 23.5R X 25 Radial L3 | 3.2 bar (47 psi) | p. 1025 |
| Center, rear and front drive shaft bolts torque | 75 - 81 Nm ( 55 - 60 lb.ft) | p. 351 |
| Upper articulation pivot pin M16 bolt torque | 220 - 250 Nm ( 162 - 184 pound-feet) | p. 891 |
| Lift cylinder piston bolt torque | 2830 - 3220 N·m (2087 - 2375 lb ft) | p. 814 |
New Holland W190C, W230C Common Problems This Manual Covers
Fault 1314 Transmission Oil Temperature Above Normal sets and the transmission oil runs hot.
The fault code procedure points to a fan that is not working or a dirty, clogged cooling core. Repair the fan or clear the core, then go back to Step 1 to confirm the fault is gone. The 1315 Transmission Oil Temperature Too High article next to it repeats that fan and cooling core check, then moves to a resistance check on the Torque Converter Output temperature sending unit.
Manual Section: Electrical systems - FAULT CODES p. 1493One loader function is dead or weak, such as the bucket cylinders, while the lift arms still work normally.
Use the troubleshooting procedure called Problem in a Single Loader Circuit. If the cylinder does not move in both directions during the test, the loader control valve is damaged and needs repair. Check the main relief at 248 - 252 bar (3596 - 3654 psi). Check the bucket port reliefs at 152 bar (2204 psi) for A and 290 bar (4205 psi) for B.
Manual Section: Hydraulic systems - Service instruction - Troubleshooting p. 714Fault 1336 Transmission Oil Filter Blocked is logged on the cluster.
The 1336 procedure first has you clear the codes and confirm that 1336 is recorded again, which points to clogged filters. Step 2 is to replace the transmission filter and return to Step 1 to confirm the fault is gone. If it still comes back, the procedure moves to Connector FM at the transmission oil filter sending unit and the filter maintenance switch.
Manual Section: Electrical systems - FAULT CODES p. 1527The cab A/C runs but gives not enough cooling.
The Air conditioning troubleshooting table lists mechanical, electrical, refrigerant and internal system causes for Not Enough Cooling. It sends you to the mechanical compressor check, the evaporator heater core check, the blower and compressor clutch check and pressure testing. The refrigerant charge is 1700 g (60.0 oz).
Manual Section: Air conditioning - Service instruction - Troubleshooting p. 1056Frequently Asked Questions
Which wheel loaders does the New Holland W190C / W230C service manual cover?
It covers the W190C and W230C Tier 4A (interim) wheel loaders, part number 47673351. Both the 4-speed and 5-speed transmission builds are covered, along with XT and Z-Bar loader linkage. No PIN or serial range is printed, so make sure your machine is a C-series Tier 4A unit. p. 1
What is the cooling system capacity and refrigerant charge of the New Holland W190C and W230C?
Cooling system capacity is 30.0 L (7.9 US gal). The A/C refrigerant charge is 1700 g (60.0 oz). The cab climate control section also covers pressure testing, the compressor, the expansion valve and the receiver drier. p. 139
How big is the hydraulic reservoir on the New Holland W190C and W230C?
The hydraulic schematic legends list the reservoir as 90 l (23.8 US gal) on the W190C and 108.5 l (28.7 US gal) on the W230C. p. 697
What front tire pressure does the New Holland W190C and W230C run on 23.5R X 25 tires?
For normal work on 23.5R X 25 Radial L3 tires, the front runs 3.4 bar (49 psi) on the W190C and 4.5 bar (65 psi) on the W230C. The rear runs 2.8 bar (40 psi) on the W190C and 3.2 bar (47 psi) on the W230C. p. 1019
Does the New Holland W190C / W230C service manual include wiring diagrams, hydraulic schematics and fault codes?
Yes. It has electrical schematic frames 01 to 33 with wire information and connector lists, such as frame 05 Engine Control. There are separate full hydraulic schematics with legends for the W190C and the W230C. A fault code index covers entries like 1314 Transmission Oil Temperature Above Normal and 19006 CAN timeout error from the NH3 sensor. p. 1094
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