New Holland LS180 & LS190 Skid Steer Service Manual (P/N 87036989)

This New Holland service manual covers the LS180 and LS190 skid steer loaders at shop-repair depth, from safe service access and system testing through component removal, overhaul, reassembly, adjustment, and operational checks. Its use of dedicated pullers, pressure/flow equipment, and machine-specific setup procedures makes it best suited to experienced technicians and well-equipped owners already familiar with diesel engines, hydrostatic drives, and high-pressure hydraulics.

• Document and model coverage: A 912-page PDF with a 910-page numbered manual body covering the LS180 and LS190. The introduction identifies LS180 machines with either the 332T non-emissionized or 332T/JF emissionized three-cylinder turbo diesel; the detailed LS180 engine chapter is headed 332T/JF. The LS190 chapter covers the emissionized 450/NC four-cylinder naturally aspirated diesel.
• Engine repair and overhaul: Covers cab-and-boom-forward engine removal, engine mounting, teardown sequence, the 332T/JF cross-flow cylinder head, cylinder-block work, pistons and bearings, crankshaft and camshaft service, timing-gear installation, DP203 injection-pump timing, injector overhaul, cooling and lubrication systems, and post-overhaul operation. The LS180 section identifies a piston and ring change effective at engine serial 532563.
• Hydrostatic and driveline service: Provides troubleshooting plus pressure, case-drain, air-ingress, and performance tests. Repair procedures cover the hydrostatic and charge pumps, single- and two-speed motors, neutralizer, control linkage, gearboxes, axles, final drives, parking brake, drive chains, system cleaning, and post-rebuild startup.
• Hydraulic system work: Details main-system and boom-circuit testing, gear-pump efficiency checks, control-valve and spool-lock solenoid diagnosis, pump and valve overhaul, boom and bucket cylinder repair, reservoir/filter/cooler service, and high-flow selector-valve and gear-pump replacement.
• Electrical diagnosis: Includes the full machine diagram, Electronic Instrument Cluster (EIC) self-test, diagnostic and setup modes, fault history, interlock and shutdown circuits, sensor and switch tests, harness routing, and starter and alternator disassembly, testing, repair, and reassembly.
• Loader, cab, and attachment systems: Covers cab/boom tilt, disabled-machine boom access, ROPS removal, boom and link service, attachment mounting-plate rebuild, pivot hubs and pins, bucket latch and tooth work, seat and seat-belt switches, heater/defroster, counterweights, tires, tracks, and electrical/hydraulic attachment compatibility.

Configuration Details That Matter

The two-speed hydrostatic motor system is a factory option on the LS180 and standard on the LS190. Model-specific sections separate LS180 and LS190 neutralizer, straight-travel, forward/reverse stop, and high/low range adjustments. Hydraulic coverage also distinguishes standard and high-flow auxiliary systems, along with boom and bucket hand-control and foot-control arrangements. That separation helps a shop select the correct test or adjustment section before taking a machine apart.

Diagrams, Specifications, and Service Tools

Named drawings include the Electrical Diagram, Seat Switch Circuit to EIC Board, Hydrostatic System Oil Flow, Control Valve - Boom Spool Shifted, High Flow Electrical Wiring Diagram, and High Flow Hydraulic Oil Flow Diagram. Component views and illustrated disassembly sequences support the engine, pump, motor, gearbox, axle, control-valve, cylinder, boom, and EIC procedures.

Reference data covers crankshaft and camshaft-bearing inspection limits, cylinder-head and component torque tables, lubricants and capacities, hydraulic and hydrostatic pressure/flow specifications, electrical test values, and linkage adjustment data. The tool lists identify cab tilting tool 86590084, crankshaft gear remover/installer FNH02134 with adapter FNH01237, camshaft-bearing remover/installer FNH01225 with handle FNH01442, and hydraulic tank pressurizing tool FNH22ESS95, among others.

Repair Cautions and Scope

The manual warns that separating the factory-balanced turbocharger CHRA destroys its balance and requires replacement. It also cautions that magnetized tools or incorrectly positioned connectors can damage the EIC board.

This service and repair documentation is intended for use with the separate operator's manual. Cab/boom tilt, raised-boom work, hydraulic testing, and major drivetrain removal require the specified supports, boom lock pins, pressure-relief precautions, battery isolation, proper lifting equipment, and cab tilting tool.