Part of the New Holland Repair Manuals.
This 837-page New Holland LS180.B, LS185.B, LS190.B Repair Manual (OEM #604_13_552_01) covers every skid steer system, from the primary hydraulic power circuit to the working arm and boom. You get complete wiring diagrams with pinout charts, hydraulic schematics for the primary, secondary, and high-flow systems, and a full section of error codes and troubleshooting steps for chasing down electrical faults. Engine, transmission, axles, and final drive procedures are all laid out step by step, alongside exploded views for parts identification. Set the right hand hydraulic pump's shoe-to-piston free travel at 0.13 mm, and torque the hydrostatic pump housing bolts to 91-111 Nm before startup. No more chasing a hydraulic leak with guesswork and a torque wrench you're not sure about. Bookmarked by section so you can jump straight from Distribution Systems to Power Train, this PDF opens on your laptop, tablet, or phone right on the shop floor.
What's Inside This New Holland LS180.B, LS185.B, LS190.B Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | - | Safety, Machine Identification, Specifications, Scheduled Maintenance |
| Workshop Manual | 1-2 | - |
| Section a: Distribution Systems | 18-241 | Primary Hydraulic Power System, Secondary Hydraulic Power System, High-Flow Hydraulic Power System, Electrical Power System, Lighting System |
| Section B: Power Production | 242-333 | Engine, Fuel and Injection System, Air Intake System, Engine Coolant System, Lubrication System, Starting System |
| Section C: Power Train | 334-463 | Power Coupling, Transmission |
| Section D: Traveling | 464-537 | Front Axle, Rear Axle, Steering Steering Clutch, Parking Brake Hydraulic, Wheels and Tracks Wheels, Final Drive |
| Section E: Body and Structure | 538-683 | User Controls and Seat, User Platform, Environment Control, Safety Security Accessories |
| Section H: Working Arm | 684-795 | Boom, Single Arm, Single Arm Tool Attachment |
| Section J: Tools and Couplers | 796-837 | Carrying, Coupling |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hydraulic pump (Right hand pump) - Free travel between shoes and pistons (max difference) | 0.13 mm (0.005 in) | p. 394 |
| Hydraulic pump (Right hand pump) - Thickness of each shoe (max difference) | 0.02 mm (0.0001 in) | p. 394 |
| Return Filter Bypass Pressure | 345 kPa (50 psi) | p. 27 |
| Hydraulic Fittings (37 Degree Flare Fitting) - Torque for -2 (5/16 - 24 thread) | 8 to 9 Nm (72 to 84 lb/in) | p. 14 |
| Hydraulic Fittings (37 Degree Flare Fitting) - Torque for -3 (3/8 - 24 thread) | 11 to 12 Nm (96 to 108 lb/in) | p. 14 |
| Primary Hydraulic System Capacity | 57 L (14.8 US gal) | p. 23 |
| Main Relief Pressure | 20,498 kPa (205 bar) | p. 25 |
| LS180.B, LS185.B, LS190.B Machines | ||
| Primary Hydraulic Power System - Main Relief Pressure at 20 gpm | 20,498 kPa (205 bar) (2975 -50/+140 psi) at 2300 rpm | p. 25 |
| LT185.B and LT190.B Machines | ||
| Primary Hydraulic Power System - Main Relief Pressure at 20 gpm | 20,500 kPa (205 bar) (2975 psi) at 2300 rpm | p. 25 |
| LS180.B, LS185.B | ||
| Chain Tank Capacity | 10.1 L (10.7 US qt) | p. 24 |
New Holland LS180.B, LS185.B, LS190.B Common Problems This Manual Covers
New Holland LS190.B hydraulic pressure drops off after 10-15 minutes of operation, boom sluggish
Check the return filter for a bypass condition first; the return filter bypass pressure is 345 kPa (50 psi) and a loaded filter will let pressure fall as fluid heats up. Verify pump charge pressure at 2482 kPa (24.8 bar) once warm. If pressure holds cold but sags hot, pull the pump and check free travel between shoes and pistons against the 0.13 mm (0.005 in) max on page 394.
Manual Section: Transmission Hydrostatic - TroubleshootingBoom drifts down or won't hold position under a loaded bucket
Test the lift circuit for internal leakage using the flow test procedure; leakage over 3.8 L/min (one gpm) above the baseline reading in Test Number 1 confirms a worn valve or cylinder seal. Also check the port relief valve cartridge on Port 2B, rated at 24,500 kPa (3552 psi); a valve stuck slightly open will bleed pressure and let the boom creep down under load.
Manual Section: Boom, Single Arm, Single Arm Tool Attachment p. 742Complete loss of hydraulic power, no boom or bucket response at all
Start at the gear pump mounting; check the socket bolts for the primary hydraulic power system pump, torqued to 34 Nm (300 lb in), for a sheared or loose fastener that would let the pump walk off its drive spline. Confirm main relief pressure reads 20,498 kPa (205 bar); a relief valve stuck open will dump flow to tank and kill all boom movement even with the engine running fine.
Manual Section: Primary Hydraulic Power System p. 15Boom angle sensor gives erratic readings, machine shuts down or acts unsafe mid-cycle
Disconnect the sensor and check wiring continuity end to end before condemning the sensor itself; a chafed harness against the boom pivot causes the same intermittent signal as a failed unit. Verify sensor supply voltage at the connector and compare output against the expected range at three boom positions (down, mid, full up) to isolate a bad sensor from a bad ground.
Manual Section: User Controls and Seat - Instrument panel - Electrical testHydraulic fluid running hot, temperature warning triggers during heavy digging
Check fluid level against the 57 L (14.8 US gal) primary system capacity first; low fluid circulates less volume through the cooler and runs hotter under load. Inspect the cooler fins for debris packing and verify the temperature sensor circuit per the testing procedure, checking for a bad sensor or bad wiring rather than an actual overheat condition.
Manual Section: Primary Hydraulic Power System - Temperature sensor - TestingHydraulic hose fitting weeps or blows out at a coupling under pressure
Match the fitting size before retorquing; a -6 (3/8 inch) 37 degree flare fitting takes 27 to 33 Nm (240 to 300 lb/in), while a -8 (1/2 inch) fitting needs 46 to 56 Nm (408 to 504 lb/in). Under-torqued fittings weep slowly, over-torqued ones crack the flare seat, so pull the hose, inspect the flare face for damage, and retorque to spec rather than just cranking it tighter.
Manual Section: Primary Hydraulic Power System p. 14Frequently Asked Questions
How to reset error codes on New Holland LS180.B skid steer?
To reset accumulated fault totals, go to the fault history display in the SETUP menu. Press and hold the road light button to set the displayed fault total to zero, or press the system enable button when "CLEAR" is displayed in the text display to set all accumulated fault totals to zero. p. 552
What are the torque specs for hydraulic pump bolts on New Holland LS185.B?
For the primary hydraulic pump, the cover socket bolts should be tightened to a torque of 34 Nm (300 lb in). For the hydrostatic tandem pump, the bolts that hold the pumps together should be torqued to 91 - 111 Nm (67 - 82 lb ft). p. 61
How to reset the engine hour counter on New Holland LS190.B?
The manual describes how to change engine hours in the SETUP menu using the 'Road light' button to increment digits and the 'Parking brake' button to save the new value. It does not explicitly state a procedure to reset the engine hour counter to zero, only to change its value. The 'Job Timer' can be cleared to zero, but this is distinct from the 'Engine Hourmeter'. p. 545
What are the torque specs for wheel lug nuts on New Holland LS180.B?
The wheel nut torque for the New Holland LS180.B is 169 - 196 Nm (125 - 145 lb ft). It is recommended to check the wheel nuts every 2 hours until they remain tight after installation. p. 520
Is this New Holland LS180.B, LS185.B, LS190.B Repair Manual a digital download?
A 837-page Repair Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this New Holland LS180.B, LS185.B, LS190.B Repair Manual printable?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this New Holland LS180.B, LS185.B, LS190.B manual include hydraulic?
Yes, this New Holland LS180.B, LS185.B, LS190.B Repair Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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