Part of the New Holland Repair Manuals.
This 546-page New Holland LS140, LS150 Service Manual has one job: putting factory answers in your hands for both skid steer models, no guessing required. Open it up and you're into full wiring diagrams for the entire electrical system, hydraulic schematics covering the control valve, pump, and cylinder circuits, and a troubleshooting section that walks you through the boom and axle systems fault by fault. You also get exploded views for nearly every component group, so parts orientation stops being a mystery. Set your pipe thread fittings to 41 N-m (30 ft. lbs.) and confirm the crankcase holds 5.7L with a filter change, numbers straight from the factory page, not a forum thread. Your hydraulics locked up? Reset the EIC security code and move on. Bookmarked by system, searchable by keyword: pull it up on a tablet in the shop and get back under the machine.
What's Inside This New Holland LS140, LS150 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-34 | Hardware Torque Specifications, Lubricants and Coolants, Sealants, Cab and Boom Tilt Procedure, Craning the Skid Steer, Specifications |
| Engine | 35-144 | General Engine Specifications, Troubleshooting, Torque Specifications, Engine Removal, Engine Component Maintenance, Fuel System |
| Hydraulic System | 145-240 | Hydraulic System Compatibility, Specifications, Troubleshooting, Control Valve, Hydraulic Pump, Cylinders, Boom and Bucket |
| Frames | 241-258 | General Information, Cab and ROPS, Cab and ROPS Removal, Cab and ROPS Reinstallation |
| Axles and Wheels | 259-292 | Axles, Axle Housing Assembly, Final Drive, Tires/Wheels, Primary Drive Chain, Intermediate Shaft Assembly |
| Cab Climate Control | 293-300 | Heater/Defroster, Switch and Control Panel, Relay and Fuse Block, Louver, Heater Core, Shutoff Valve, Fan Assembly, Filter |
| Electrical System | 301-464 | Advanced Warning System, Electronic Instrument Cluster (Eic), Alternator, Starter, Engine Fuse Panel, Battery, Ignition Switch, Seat Switch |
| Front Loader (Boom and Mounting Plate) | 465-508 | Buckets, Boom Lock Pins, Linkage, Boom, Attachment Mounting Plate, Pallet Fork, Utility Fork, Bucket Cutting Edge |
| Accessories | 509-534 | Back-Up Alarm, Block Heater (Engine), Electric Power Supply (12 Volt, 15 Amp), Horn, Warning Light (Rotary Beacon), Warning Lights (Four-Way Flashers/Turn Signal/Horn) |
| Platforms, Cab, Bodywork, and Decals | 535-546 | Seat, Seat Pan Support, Seat Switch, Pan, Safety Decals |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Main System Relief Valve / Boom Circuit Relief Valve Adjustment | Nonadjustable (replace if not within specifications) | p. 152 |
| EIC Overheat Condition Signal | 102°C (216°F) | p. 116 |
| Pipe Thread Fitting Torque (1/2″ – 14) | 41 N⋅m (30 ft. lbs.) | p. 13 |
| Engine Crankcase Capacity w/filter | 5.7 L (6 qt.) | p. 31 |
| Main System Relief Valve Pressure | 170 - 177 bar (2500 - 2600 PSI) | p. 152 |
| Boom Cylinder Stroke | 400 mm (15.75″) | p. 152 |
| Bucket Cylinder Bore Diameter | 46 mm (1.83″) | p. 152 |
| Wheel Bolt Torque | 170 N·m (125 ft. lbs.) | p. 262 |
| Chain Case Lubrication | 5.7 liters (1.5 Gal.) each side - 10W-30 API service SH/CG4 oil | p. 262 |
| LS140 | ||
| LS140 Hydraulic Pump Output | 10.8 GPM (40.9 LPM) @ 2900 RPM | p. 31 |
| LS150 | ||
| LS150 Hydraulic Pump Output | 11.9 GPM (45.0 LPM) @ 3200 RPM | p. 31 |
New Holland LS140, LS150 Common Problems This Manual Covers
New Holland LS150 hydraulic pump grinding noise after 2000 hours, bucket won't lift
Check the hydraulic troubleshooting index starting for pump and boom fault trees. Verify the LS150 pump is producing 11.7 GPM (44.3 LPM) at 3200 RPM; if flow is low, remove and inspect the pump shaft splines and charge pressure before condemning the pump itself.
Manual Section: Hydraulic System TroubleshootingEngine won't start or cranks slowly in cold weather
Check the engine troubleshooting chart for no-start conditions. Verify glow plug resistance reads 55 ohms per element; if any plug is open or shorted, replace it before testing the starter. Confirm battery voltage stays above 11.9 volts under crank load, since a weak battery mimics a glow plug fault.
Manual Section: Engine TroubleshootingEIC overheat warning light comes on during normal operation
Verify coolant temperature against the EIC overheat signal threshold of 102°C (216°F) referenced on page 116. Check the radiator core and screen for debris, then confirm the fan belt tension and thermostat operation. Do not ignore repeated triggers; a sensor reading below threshold with a lit light points to a wiring fault instead.
Manual Section: EIC Diagnostic Mode Circuit Tests p. 116Boom or bucket cylinder drifts down when left raised with engine off
Check the hydraulic testing section starting for boom and bucket drift procedures. Confirm the main system relief valve holds 170 to 177 bar (2500 to 2600 PSI); this valve is nonadjustable, so replace it if pressure falls outside spec. Inspect cylinder seals next, since worn seals bypass internally and produce the same drift symptom.
Manual Section: Hydraulic System TestingFluid leak or aerated oil found at a hydraulic line fitting
Inspect all pipe thread fittings for the 41 N·m (30 ft. lbs.) torque spec listed on page 13; an undertorqued 1/2 inch fitting draws in air on the suction side and causes foaming visible in the reservoir. Torque the fitting to spec, clean the area, and run the loader briefly to confirm the leak or aeration is gone before returning it to service.
Manual Section: General Information: Service Procedures p. 13Drive wheels lock up or chain case makes noise on turns
Check the axle troubleshooting chart on pages 264-265 for chain case and bearing fault paths. Drain the chain case and verify it holds 5.7 liters (1.5 Gal.) of 10W-30 API SH/CG4 oil per side; low or contaminated oil accelerates chain wear and produces the noise. Torque wheel bolts to 170 N·m (125 ft. lbs.) after any wheel removal, on page 262.
Manual Section: Axle and Wheels Troubleshooting p. 264Frequently Asked Questions
How to reset the hydraulic lock on New Holland LS150?
To reset the hydraulic lock on the New Holland LS150, which is controlled by the EIC LOCK MODE, you must reenter the same two-digit security code that was used to lock it. This will return the skid steer to normal operation, allowing the boom and bucket spool solenoids to unlock. The procedure involves sitting in the operator's seat, turning the ignition key to "ON", and entering the previously set two-digit code using the "OPEN BOOK" and "ARROW" switches. p. 331
What are the torque specifications for cylinder head bolts on the New Holland LS140 engine?
For the New Holland LS140, the cylinder head bolts should be torqued to 98 - 103 N·m (72 - 76 ft. lbs.) when oiled. This specific torque value is crucial for proper engine assembly and is listed in the engine's torque specifications table. p. 51
What are the error codes for the New Holland LS150 EIC system?
The New Holland LS150 EIC system displays various fault codes for different issues. For instance, F0-00 indicates a Hydraulic oil filter fault, F1-00 is for the Engine air cleaner, F3-00 for Engine preheat, F4-00 for the Fuel solenoid, F5-00 for Engine coolant temperature, F6-00 for Hydrostatic transmission charge pressure, F7-00 for Transmission/Hydraulic oil temperature, F8-00 for Battery voltage, F9-00 for Engine oil pressure, and FA-00 for the Hydraulic boom/bucket solenoid. p. 347
How do I reset the electronic instrument cluster on the LS140?
To reset the Electronic Instrument Cluster (EIC) on the LS140 to its original factory settings, you need to access the "SEtUP" mode and select "CLr E - Clear Memory". This process will reset the engine code to (01), hours to (0000.0) zero, temperature display to Fahrenheit, and clear the engine RPM calibration. p. 344
How quickly can I access this New Holland LS140, LS150 manual after buying?
A 546-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Are there any print restrictions on this New Holland LS140, LS150 manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are there wiring harness diagrams in this New Holland LS140, LS150 manual?
Included. The New Holland LS140, LS150 Service Manual covers complete wiring harness diagrams, electrical circuits, and connector pinouts.
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