Description

Hyster S6.0FT, H6.0FT, H7.0FT, H155FT, S7.0FT 2013 Repair Manual

I’ve seen guys tear into a Hyster powershift transmission with a printout off the internet, and I’ve seen what happens when they trust aftermarket torque specs. Stripped threads, blown seals, a forklift that won’t move. The Hyster S6.0FT, H6.0FT, H7.0FT, H155FT, S7.0FT 2013 Repair Manual stops that. It’s the factory document, 96 pages, published by Hyster in 2013, and it covers the two-speed powershift transmission repair from start to finish. No aftermarket interpretation, no missing steps. Just the specs that came off the line. If you’re working on any of these models – S6.0FT, H6.0FT, H7.0FT, H155FT, or S7.0FT – this is the only manual you should have open on the bench.

Two-Speed Powershift Transmission: What This Manual Covers

This manual is built around the two-speed powershift transmission. The table of contents lists every subassembly: Torque Converter, Transmission Case, Forward 1, Range 2, Reverse 1, Range 1, Stator Support, Turbine Shaft, Pump Drive Gear, Idler Gear, and Output Shaft. Each section walks you through remove, disassemble, clean, inspect, and assemble. That’s the kind of order you need when you’re deep inside a transmission and can’t afford to lose track of a snap ring or a thrust washer. The manual also includes a full Control Valve Repair section, covering the control valve assembly and body, with its own remove, disassemble, clean, inspect, and assemble steps. No fluff – just the sequence the factory expects.

Safety Precautions Maintenance and Repair: Not Optional

Page 2 of the manual lays out the safety rules. I’ve seen techs skip these and end up with a transmission on their foot or a battery spark igniting gas fumes. The manual says: disconnect the battery ground cable on internal combustion lift trucks. Use correct blocks to prevent the unit from rolling. Wear safety glasses. Always use Hyster-approved parts. These aren’t suggestions – they’re the difference between a job done right and a trip to the ER. The manual also warns about flammable fuels (gasoline, LPG, CNG, diesel) and battery charging gases. If you’re working on a lift truck, you read this section first. Every time.

Transmission Disassembly: Step-by-Step from the Factory

The disassembly sequence is laid out in the order you need to work. Start with the torque converter removal, then the transmission case. From there, you break down the clutch packs: Forward 1, Range 2, Reverse 1, Range 1. Each has its own subsection with specific disassembly notes. The manual doesn’t assume you know which direction a snap ring faces – it tells you. After disassembly, the “Clean and Inspect” section covers housings, oil seals and gaskets, bearings, gears and shafts. You’ll find guidance on what to look for: pitting, wear patterns, heat discoloration. This is where a factory manual pays for itself – you don’t guess whether a bearing is reusable; you check against the factory criteria.

Control Valve Repair: Accurate Assembly Sequence

Control valves are where most aftermarket manuals get sloppy. Not this one. The manual breaks the control valve repair into remove, disassemble (control valve assembly and control valve body), clean, inspect, and assemble. The assembly order is critical – install the wrong spring or spool and you’ll get erratic shifting or no shift at all. The manual also includes the torque specification for the control valve body bolts. You won’t find that in a generic guide. For the whole transmission, the torque specification section is at the end of the manual. That’s where you look before you tighten anything. If you’re pairing this with related references, check out Hyster Service Manual 8000 SRM 1409 for additional powertrain info, or the HYSTER H6.0FT-H9.0FT Diagnostic Troubleshooting Manual for electrical and hydraulic diagnostics. For larger models in the same family, the Hyster H135-190FT Series Forklift Service Manual covers the heavier end of the line.

3 Reasons to Use the OEM Hyster Manual

First, torque values. The manual ends with a dedicated Torque Specification section. These are the numbers that Hyster engineers validated. Use them. Second, the order of operations. Hyster designed the transmission, so they know the correct sequence to avoid damaging seals or bearings during reassembly. Third, the diagnostic insight. When a shift is delayed or a clutch slips, the manual’s inspection procedures tell you what to measure – clearances, piston travel, oil flow. Aftermarket manuals skip this. You can compare this transmission to a standard Manual Transmission to understand the differences, but for repair work, stick with the OEM source. The same applies to the Manual Transmission concept – the powershift is a different beast, and this manual treats it that way.

Torque Specifications: Page 96

Every fastener in the transmission has a specified torque. The manual lists them in the Torque Specification section. You’ll find values for the torque converter housing bolts, transmission case bolts, control valve body fasteners, and more. If you’re rebuilding a powershift and don’t have these numbers, you’re rolling the dice. A loose bolt can cause an oil leak; an overtightened bolt can distort a bore and seize a shaft. The manual uses imperial units (ft-lb). Don’t convert to metric unless you’re certain – the conversion errors are where mistakes happen. Keep the manual open to that page while you work.

Does this manual cover the H155FT model?

Yes, the H155FT is listed on the first page alongside the H6.0FT, H7.0FT, and S-series models. The manual covers the same two-speed powershift transmission for all these variants.

What torque values are included in the manual?

The manual has a dedicated Torque Specification section at the end. It lists the torque for every major fastener: transmission case bolts, torque converter housing bolts, control valve body bolts, and more. The exact values are given in ft-lb. Without these numbers, you risk leaks or internal damage. I’ve seen a tech reuse a torque converter bolt without checking the spec – it backed out and ground the housing. The factory spec accounts for bolt grade, thread condition, and whether the threads are lubricated. If you’re rebuilding a powershift, you need this page. The manual also includes tightening sequences where applicable, so you don’t warp a housing by tightening one side first.

You’re working on a Hyster two-speed powershift transmission. You need the specs that come from the people who built it. Access the Factory Manual and get the OEM procedures, torque values, and assembly sequences that eliminate guesswork. This is the document Hyster dealers use. Put it on your tablet or print it out – just have it open when you’re on the job.