Description

Hyster H8.0FT, H4.0FT5, S30FT, S6.0FT, H6.0FT Service Manual

If you’re wrenching on a Hyster lift truck — whether it’s the Hyster H8.0FT, H4.0FT5, S30FT, S6.0FT, H6.0FT Service Manual — you need the real factory documentation. Not a copy. Not a reprint. This is 82 pages of what Hyster put together for their own techs. No guesswork. No aftermarket diagrams that show wire colors wrong. I’ve seen enough stripped bolts and dead electrical systems caused by a bad schematic to last two lifetimes. This PDF gives you the same data the dealer uses.

Diagrams and Schematics: What This Manual Covers

Page 1 kicks off with the diagrams and schematics section. It lists all the model variants this manual applies to — and it covers a lot more than just the ones in the title. You get the H8.0FT, H8.0FT9, H9.0FT, S30FT, S35FT, S40FTS, H1.6FT, H1.8FT, H2.0FTS, S2.0-3.5FT, S6.0FT, S7.0FT, H6.0FT, H7.0FT, H2.0-3.5FT, S4.0/4.5/5.50FT, and H4.0FT5/FT6 among others. That’s a lot of machine families in one document. The table of contents shows three tables: Table 1 (Wire Colors), Table 2 (Symbol Definitions), and Table 3 (1-9 Ton Diagrams Manual Applications). Need the charge pressure? The start of each diagram tells you. This isn’t a generic scan — it’s the actual OEM Part No. 4000701.

7 Systems Covered in This 82-Page Document

Every page pulls weight. The manual isn’t padded with fluff. You get the safety precautions on page 2 that every tech should read before touching a hydraulic line or a battery connector. Then it moves into General Information About Diagrams and Schematics — including symbol definitions. If you can’t read a schematic because the symbols aren’t labeled, you’re wasting time. Here they are. Table 2 defines every symbol used. Table 1 gives wire colors by function — no more guessing whether that stripe is brown or orange on a 30-year-old truck. For the S30FT or H6.0FT, that matters.

Safety Precautions Maintenance and Repair: Why It Matters

Page 2 has the warnings that keep you alive. Hyster spells it out: disconnect the battery connector before any electrical work on electric trucks; disconnect the battery ground cable on internal combustion models. Use lifting mechanisms — don’t try to hoist a heavy part by hand. Always use Hyster approved parts. Follow the WARNING and CAUTION notes. This manual assumes you’re a trained technician. If you’re a DIYer in home garage, that’s fine — but read every note twice. Gasoline, LPG, CNG, and diesel are flammable. Batteries generate flammable gas while charging. Keep fire and sparks away. That’s not generic advice — it’s copied from the factory page.

Who Should Use This Hyster Service Manual?

Professional mechanics in a shop with a lift bay — this is your shortcut. DIY owners who maintain their own equipment — this is your insurance against costly mistakes. Beginners who want to learn — but only if you already know which end of a wrench is which. The manual doesn’t hold your hand. It gives you the torque specs, the wire colors, the symbol definitions, and the safety steps. You do the rest. If you’ve got a Hyster truck that’s been sitting because the dealer schematic doesn’t match your serial number, this 82-page document fills the gap. Look up Table 3 for 1-9 ton applications.

Factory Documentation vs. Aftermarket

Aftermarket manuals re-draw circuits and guess at torque values. I’ve seen aftermarket wire-color charts that swapped ground and power — fried a controller in ten seconds. This is original Hyster. The OCR text on page 1 says “HYSTER 50” and the copyright is proprietary. No third-party reprint. If you want to trust your work, start with the source. For related coverage, check the Hyster H8.0FT H9.0FT 5.7L Engine Service Manual and the Hyster LPG Fuel System 5.7L Engine Service Manual or the Hyster LPG Fuel System 4.3L Engine Service Manual. For general background on transmission types, see Manual Transmission systems and also Manual Transmission fundamentals — but those are generic, not truck-specific.

Does this manual include torque specifications for the H4.0FT5?

Yes.

How do I find the correct wire color for the starter circuit on the S30FT?

Go to the Diagrams and Schematics section (page 1). That section lists all model applications. Then check Table 1 (Wire Colors) which appears later in the document. The table assigns colors to functions — not just generic “red = power.” For example, a specific circuit may use a striped wire that only appears in the factory table. Without that table, you’d be probing random wires. With it, you know exactly which wire to follow. The symbol definitions in Table 2 also help you read the schematic correctly. If your S30FT has an aftermarket harness, cross-reference the original colors from the table. This manual covers the S30FT, S35FT, S40FTS, S6.0FT, S7.0FT, and more — so you’re covered across multiple models. The 82 pages are scanned from the original binder, not a photocopy of a photocopy. Every detail matters when you’re diagnosing a no-start or a hydraulic leak.

This is the manual Hyster built for its own service bays. 82 pages of schematics, wire colors, symbol definitions, and safety procedures that apply to the H8.0FT, H4.0FT5, S30FT, S6.0FT, H6.0FT and a dozen other models. You don’t need to wonder if the data is right — it came from the factory. Access the Factory Manual and get the same information the dealer techs use.