Description

New Holland L160, L170 Workshop Manual – Factory OEM Repair Guide

You own a New Holland L160 or L170 skid steer. Something breaks. You pull up a PDF from some aftermarket site and the torque spec for the hydrostatic pump coupling doesn’t match what you torqued last time. That’s when you waste a half-day cross-referencing forums. This manual ends that. I’m Mike Callahan. I’ve been turning wrenches since before most of you were born, and I’ll tell you straight: the only document that gets the New Holland L160, L170 Workshop Manual right is the one New Holland printed. 904 pages of factory procedure. No summaries. No redrawn diagrams. The real thing.

Let me walk you through what you’re getting. This repair manual splits into fourteen sections, each covering a major system. Section 10 – Engine. Section 29 – Hydrostatic Transmission. Section 55 – Electrical System. That last one alone runs from a wiring diagram legend to every connector, relay, and switch in the cab-upgrade machines. You want the starter circuit? Page 55-40 shows you the alternator, starter solenoid, reverse polarity diode, and the ignition switch path. You need the seat belt interlock? Page 55-42. That’s the kind of granularity that keeps you from guessing which wire goes where.

14 Sections of Factory Procedure

The table of contents lists every section by number and page, starting with Section 00 (General Information) and ending with Section 90 (Platforms, Cab, Bodywork, and Decals). Sandwiched in between: Section 27 Rear Drive Axle (Gearboxes), Section 33 Brakes and Controls, Section 35 Hydraulic System, Section 37 Towing Hooks and Ballasting, Section 39 Frames, Section 44 Axles and Wheels, Section 50 Cab Climate Control, Section 82 Front Loader (Boom and Mounting Plate), and Section 88 Accessories. Each section opens its own sub-table of contents. You don’t flip through 900 pages blind – the names tell you exactly where to go.

Hydrostatic Transmission Service – Section 29

Skid steers take a beating on their hydrostatic drives. Page 29-142 lists the full specifications for the hydrostatic pump on machines equipped with pilot controls. That page has the pressure numbers, the flow rates, and the exact tolerances New Holland stamped into the casting. If you’re rebuilding a pump or swapping a charge pump, you need those numbers. Aftermarket manuals usually translate the metric values wrong. This one doesn’t. You get the OEM specs, in the units the factory intended.

Wiring Diagrams: From Cab Upgrade to Euro Lighting

Electrical gremlins kill more machine uptime than mechanical failures. The cab-upgrade section (starts around page 55-40) runs twelve full pages of wire-by-wire diagrams. Component numbers 1 through 83, each labeled and cross-referenced to a legend. You get the ISO engine fuel pump circuit, the HVAC relay logic, the hazard/beacon switch (both North American and Euro versions), and a stack of diodes you’d never trace without a schematic. If you’re installing a beacon or troubleshooting a flashing left rear indicator lamp, you’ll find the exact pin and the exact fuse rating. No guesswork.

This Manual vs Aftermarket: Why OEM Matters

I’ve seen aftermarket reprints that skip the “Brake Release/Tandem Pump Neutral Override Switch” diagram entirely. That switch keeps a machine from rolling away when you’re underneath it. Missing that page is a safety violation, not an inconvenience. This manual is a direct scan of the factory Print No. 87034734, bound in Italy. The copyright belongs to CNH America LLC, Carol Stream, IL. You get the real article, not a third-party transcription. If you want to compare it to another New Holland manual, check the New Holland LM1330 LM1333 2008 OEM Workshop Manual”>2008 LM1330/LM1333 manual or the New Holland E245B, E215B 2007 Workshop Manual – 821 Pages of OEM Factory Specs”>E245B/E215B 2007 manual. Both are factory-printed, same level of detail. For larger excavators, the New Holland E385B 2007 Workshop Manual | Factory OEM Repair Guide”>E385B manual follows the same section layout. That’s consistency you can trust.

What Torque Values Are Listed?

Every fastener specification in this manual comes from New Holland’s engineering department. Torque values for the hydrostatic pump mounting bolts, the engine flywheel bolts, the wheel lug nuts – all listed in ft-lbs (imperial, because this is North America). The manual also includes fluid capacities for the hydraulic tank, the transmission, and the engine oil pan. When a spec calls for 90 ft-lbs, you set your torque wrench to 90, not “about 90.” That’s how you keep threads from stripping and seals from leaking.

Before You Crack a Bolt: Workshop Tips Embedded

The manual doesn’t just tell you what to do – it tells you the tooling. In the brake section, it specifies the special tool for compressing the brake pistons. In the front loader section, it shows the correct lifting points and safety stands. There are warnings about high-pressure hydraulic oil injection injuries. These aren’t lawyer stickers; they’re real-world cautions written by technicians who’ve seen the damage. Pay attention to them. Also note: the manual covers both the L160 and L170 identically unless a difference is noted. The two machines share the same drivetrain and electrical architecture, so one manual works for both.

Frequently Asked Questions

Does this manual cover the L170 model?

Yes. The front cover lists both L160 and L170. All sections apply to both unless a specific variant is noted.

What electrical diagrams are included in the cab-upgrade section?

The cab-upgrade wiring section (pages 55-40 through 55-50) contains twelve full-page diagrams with 83 individually numbered components. You get the alternator circuit, starter with solenoid, reverse polarity diode, starter relay, ignition switch, HVAC relay, lamp relays, auxiliary override switch, seat switch, seat belt switch, cold start advance temperature sender and solenoid, fuel hold-in solenoid, fuel pump (ISM engine only), fuel sender, engine coolant temperature sender, oil pressure switch, air filter restriction switch, hydraulic filter pressure switch, charge pressure switch, hydraulic oil temperature sender, brake release/tandem pump neutral override switch, two loader valve solenoids, diodes, four work lights, two indicator lights, wiper motor relays and control relays, attachment relay, hazard/turn relay, flasher module, turn signal converter module, beacon, fuses, and the full Euro lighting set including road lights, brake lamps, position lamps, and license plate light. That is not a partial diagram. That is the entire production cab harness. If you are diagnosing a no-start or a light that stays on, you start here. For a broader understanding of how manual transmissions differ from hydrostatic drive, see the Manual Transmission”>Manual Transmission overview. If you’re working on a machine with a manual shift gearbox, that resource covers the fundamentals, though this skid steer uses a hydrostatic system entirely.

After using aftermarket reprints that skip the charge pressure switch wiring, you appreciate a manual that numbers every single component from 1 to 83 and never says “refer to manufacturer.” This is that manual. Manual Transmission”>Manual Transmission resources can help with other equipment, but for your L160 or L170, stick with the factory document.

If you want to fix your L160 or L170 without second-guessing, access the factory manual.