Description

New Holland LM740 Workshop Manual

You have a New Holland LM740 telehandler in your shop — or sitting in your own yard — and you’re staring at a hydraulic leak or a transmission that won’t shift right. Without factory specs you’re guessing, and guessing on a 10,000-pound machine costs real money. I’ve seen guys pull a valve body apart, lose a spring, then spend half a day online chasing part numbers. That’s wasted time. This is a New Holland LM740 Workshop Manual, OEM print, not some aftermarket rewrite with generic illustrations. 391 pages of what New Holland’s own techs use. You want to pull the engine? Torque the head bolts? The specs are there, page 36, in both Nm and lb-ft. No rounding up.

Engine Overhaul: Main Specs and Tightening Torques

Section 10 starts with the F4GE9484J*J600 engine. General engine specs are on page 4 — displacement, compression ratio, firing order. Then removal and installation of the engine and radiator starts page 11. If you are planning an in-frame rebuild, you need the cylinder head bolt torque sequence and values. Tightening torques are on page 36. That’s not a suggestion; it’s the number the factory engineer wrote down. Use a click-type torque wrench that’s been calibrated within the last year. Also included: troubleshooting guide for common complaints — hard start, low power, excessive smoke. Each fault has a list of possible causes and the check procedure. No guesswork.

Powershift Transmission: Pressure Tests and Overhaul

Section 21 covers the powershift transmission assembly, drop box, and torque converter. This is where most DIYers get in trouble. The manual gives you hydraulic circuit diagrams (page 15) and pressure test points (page 40). You need a gauge set that reads 0-300 psi for the clutch circuit and 0-150 psi for the torque converter lube circuit. Step-by-step assembly instructions start page 42; overhaul starts page 45. Special tools are listed on page 104. If you try to rebuild a powershift without the factory end-play specs, you will have clutch slip or no pressure. I’ve seen it. The manual also includes a troubleshooting guide with pressure charts. Do not skip the safety warning on page 3 about pressurized oil — hot hydraulic fluid can cause severe burns.

391 Pages of OEM Data — Not a Condensed Version

Three hundred ninety-one pages. That means each procedure is explained in full, not summarized into a paragraph. Section 00 — General covers safety rules (page 3), product identification (page 6), environmental considerations (page 10), and maintenance techniques (page 11). Section 25 — Front Axle includes wheel toe-in check (page 7) and axle drive pinion bearing adjustment (page 54). Section 27 — Rear Axle details removal procedure (page 7) and overhaul with special tools (page 9). Section 33 — Braking System covers service brakes, trailer brake, parking brake, and disc adjustment (page 10). The hydraulic system (Section 35) has steering and telescopic boom circuit diagrams. Every section includes troubleshooting procedures specific to that system. Look for the yellow warning triangles — they mark operations that require special tools or procedures to avoid damaging components.

Does This Manual Cover the Transmission Control Module?

The manual covers the entire powershift transmission mechanically — clutches, modulating valve (page 31), torque converter, and drop box. It also includes electrical circuit diagrams for the pressure switches and solenoids. However, this is a workshop manual, not an electronic service manual. For ECM diagnostic codes or programming, you need the dealer-level software. What you get here are the hydraulic pressure specs, the clutch pack clearance ranges, and the test points to verify proper operation. That is what you need to physically rebuild or troubleshoot the transmission. If the transmission is not engaging, start with pressure tests on the clutch circuit (page 38) before pulling the unit. Many times it’s a worn modulating valve, not a failed clutch pack.

Safety Warnings: Read Before You Turn a Wrench

Page 2 of this manual has a full page of warnings in bold type. “NEVER attempt any cleaning, lubrication or maintenance operation with the machine running.” That’s from the OEM. Also: “All maintenance and repair operations must be performed exclusively by the Service Network of the Manufacturer, complying strictly with the indications herein and using the prescribed special tools.” That’s their legal language, but the point is real — a telehandler has high-pressure hydraulics and a heavy boom. If you block the boom with a jack stand instead of the factory locking bracket, you are asking for a crush injury. The manual lists the safety rules you should follow. Follow them. No shortcuts.

3 Reasons to Use OEM Documentation Over Aftermarket

Aftermarket manuals often combine several models into one book and omit steps. This manual is model-specific to the LM740. Reason one: torque values are verified by New Holland engineers, not a third-party editor. Reason two: the wiring and hydraulic diagrams are drawn from the original CAD files. Reason three: the troubleshooting procedures are written for the specific components in your machine. If you have an aftermarket manual that says “torque to spec” without giving the spec, it’s useless. This manual gives every spec. For reference, see the related New Holland LM1330 LM1333 2008 OEM Workshop Manual and the New Holland E245B, E215B 2007 Workshop Manual – 821 Pages of OEM Factory Specs for other New Holland equipment. The New Holland E385B 2007 Workshop Manual | Factory OEM Repair Guide is also available if you work on excavators. For general theory on how a powershift transmission works, the Manual Transmission wikipedia article covers the basics, but the factory manual has the actual valve body schematics. The same goes for the Manual Transmission article — useful for background, but not for repair.

FAQ — Common Questions About This Manual

Can I use this manual for a New Holland LM730 or LM750?

The LM740 has a specific engine and transmission calibration. Some sections like the front axle and brakes may be similar, but torque specs and hydraulic pressures differ. Use the manual for the exact model.

Are torque values given in both metric and imperial?

Yes. The tightening torques section (page 36 for engine, and throughout other sections) lists values in Nm and lb-ft. Always double-check which unit your torque wrench reads.

Does this manual include wiring diagrams?

It includes hydraulic circuit diagrams and electrical schematics for the transmission pressure switches and solenoids. Full machine wiring diagrams are in the separate electrical service manual.

What special tools are required for transmission overhaul?

The manual lists special tools on page 104. You will need a clutch spring compressor and a tool to align the clutch pack standpipes. Some can be fabricated, but the factory tool makes the job safer. Do not improvise with a C-clamp on the spring retainer — you will damage the piston bore.

You need the right information before you pull the first bolt. Access the Factory Manual and have the torque specs, clearances, and procedures on your bench, not on a phone screen that dims every time you walk under the lift. This is the OEM document. It costs less than one hour of dealer diagnostic time and will save you from buying parts you don’t need or from reassembling something wrong. Access the Factory Manual and get the LM740 back to work.