Description

Hyster S6.00-7.00XL, S6.0-7.0FT, S3.50-5.50XM, S4.0-5.5FT, H6.00-7.00XL Service Manual – 40 Pages

If you’ve ever chased a no-start on a Hyster lift truck because someone handed you a third-party wiring diagram with the wrong pinout, you understand why OEM documentation is the only thing that belongs on your bench. This 40-page Service Manual for the S6.00-7.00XL, S6.0-7.0FT, S3.50-5.50XM, S4.0-5.5FT, and H6.00-7.00XL models is the factory print—the same one the Hyster dealer techs use. It covers the GM 4.3L and 5.7L engines used in these trucks, with step-by-step removal/install for the Crankshaft Position (CKP) sensor, Camshaft Position (CMP) sensor, distributor, ignition coil, and ICM. No guesswork, no aftermarket shortcuts.

Distributor Ignition System: Full Overhaul Procedure

Chapter four of this manual walks you through inspection, disassembly, assembly, and two different installation procedures for the distributor. The OEM instructions include specific alignment marks and rotor positioning that aftermarket summaries always leave out. Skip that step, and you’ll be pulling the distributor again after an hour of cranking. Page 26 shows the exact procedure for Install Procedure 1 versus Procedure 2—they are not the same. Do not swap them.

40 Pages of Factory Data

At 40 pages, this isn’t a thin owner’s pamphlet. It includes the Specifications and Special Tools section at the back, where you’ll find critical torque values for the Crankshaft pulley bolt and Camshaft sprocket. You also get the full sequence for spark plug wire inspection and replacement, plus visual inspection criteria for plugs that aftermarket guides treat as optional. They aren’t optional. You check the insulator for cracks and measure the gap with a wire gauge—period.

Are the Sensor Replacement Procedures Accurate?

Yes—because these are the OEM procedures. The Crankshaft Position (CKP) Sensor removal and install steps are straight from Hyster’s engineering team. Same for the Camshaft Position (CMP) Sensor. Each sensor has its own chapter with separate remove and install sections. The manual even tells you the orientation of the sensor harness clip and the correct fastener torque. Aftermarket PDFs often omit the torque and leave you chasing intermittent codes. Not this one.

Ignition Coil and ICM: Installation Sequence

The ignition coil replacement and ignition control module replacement chapters give you remove/install steps that are model-specific. The S6.0-7.0FT uses a different bracket than the S3.50-5.50XM. The manual shows which bolt pattern applies. If you’ve ever tried to jam an ICM from a different model into a H6.00-7.50XL and wondered why the connector wouldn’t seat, you’ll appreciate having the right part number and mounting instructions. This manual also covers the High Voltage Switch (HVS) ignition system used on EPA-compliant engines.

Who Needs This Manual?

If you’re maintaining a fleet of Hyster S-series or H-series lift trucks in a warehouse or yard, this is your reference for the ignition and sensor systems on GM 4.3L and 5.7L engines. It’s also useful for independent shops that take in Hyster trade-ins. Beginners need the safety warnings printed on page 2—disconnect the battery ground cable, wear safety glasses, and use Hyster-approved parts. Professionals need the exact CKP sensor air gap and the CMP sensor signal specs. Both are in here. For a deeper dive on the full powertrain, check the Hyster S6.00-7.00XL Service Manual – 132 Pages OEM Factory Specs which includes transmission and brake systems. Another related manual is the Hyster A513 A514 A613 A614 A702 2014 Service Manual for newer models. For earlier S4.0-5.5FT variants, the Hyster S4.0, 4.5, 5.5FT, S5.5FTS, S80 2012 Service Manual covers those chassis.

This manual does not cover the Manual Transmission or the drive axle; it’s strictly engine ignition and sensors. If you need transmission service data, consult the Manual Transmission section of the full factory service manual for your model.

Frequently Asked Questions

Does this manual include torque specifications for the cylinder head?

No. This manual focuses on the ignition system, sensors, and spark plugs. Cylinder head torque values are in the engine overhaul section of the 132-page manual linked above.

Will this work on a H3.50-5.50XM?

Yes. The H3.50-5.50XM is listed in the model coverage on the first page. The ignition and sensor systems are common across the GM 4.3L and 5.7L engines used in these models.

What about the fuel system – is that covered?

No. Fuel system procedures (LPG, gas) are not in this manual. You need the Hyster Periodic Maintenance manual for that.

Why is the page count only 40 pages when other manuals are 100+?

Because this is a targeted service manual for the ignition and sensor sub-systems. It’s not a full truck overhaul manual. It gives you every step for distributor repair, CKP/CMP sensor replacement, spark plug service, ignition coil and ICM replacement, plus the specifications and special tools. That’s enough to get the engine running without flipping through hundreds of pages of axle and hydraulic data.

Access the Factory Manual now and get the OEM procedures that keep your Hyster lift truck starting on the first turn. No more searching forums for torque values that may or may not be right. This is the print that Hyster dealer techs use—and now you have it.