Description

Manitou MLT 630 Turbo, MLT 630-120 LSU, MLT 634 Turbo LSU, MLT 634-120 LSU, MLT 634-120 LSU POWERSHIFT 2003 Operators Manual

If you’re running a Manitou telescopic handler on a job site and the operator’s handbook is missing or written in a language nobody reads, you’re flying blind. I’ve seen guys guess their way through hydraulic levers and blow a pump because they didn’t know the proper warm-up sequence. This 169-page factory Operators Manual is the original Dutch-language document printed by Manitou in 2003 for the entire B‑E2 series—Manitou MLT 630 Turbo, MLT 630-120 LSU, MLT 634 Turbo LSU, MLT 634-120 LSU, and MLT 634-120 LSU POWERSHIFT. It covers safety, daily operation, and scheduled maintenance. If you need to know the correct engine oil grade or how to engage the PTO safely, you don’t use a third-party summary. You use this.

Veiligheidsvoorschriften – First Chapter, Real Safety Data

Chapter 1 of the manual is labeled VEILIGHEIDSVOORSCHRIFTEN – Safety Regulations. It’s not a generic handout. The factory tells you exactly where the danger zones are around the machine, what to do before starting the engine, and how to park the handler so it doesn’t roll. Page references for load capacity charts and tire inflation pressures are laid out so the operator can check them before moving material. I’ve been in shops where guys ignored these, and I’ve had to rebuild a gearbox because someone over-specced the load on an MLT 634-120 LSU. This manual keeps you straight.

Beschrijving – Machine Description and Controls

The BESCHRIJVING chapter (Description) covers every lever, switch, and indicator on the MLT 630-120 LSU and the Powershift variant. It walks you through the transmission controls – including the difference between a standard hydraulic shuttle and the POWERSHIFT unit. If you don’t know which range to use for loading vs. traveling, this section tells you. There’s a diagram of the instrument panel with callouts for the warning lights. Not “check your manual” – it’s already the manual. The MANITOU MLT 630/634 Series Instruction Manual is the same document, just offered in a different binding. This is the one you want on the seat next to you.

Onderhoud – Maintenance Schedule by Hour Meter

Chapter 3, ONDERHOUD, is the maintenance section. It breaks down tasks by 10, 50, 250, 500, and 1000 hours. Grease points, filter changes, hydraulic oil checks – it’s all there. For example, the engine oil change interval on the MLT 634 Turbo LSU is listed at 250 hours, with the required API grade. The manual also includes torque specs for wheel nuts and hydraulic fittings. Aftermarket reprints often skip these numbers. This OEM copy does not. If you’re doing a full service on an MLT 630 Turbo, you need this chapter open. The Manitou MLT 634-120 LSU, MLT 634-120 LSU PS, MLT 735-120 LSU 2011 Operators Manual covers later years, but for 2003 models this is the one.

Optionele Toebehoren – Optional Equipment

The last chapter (Optionele Toebehoren voor deze reeks) lists factory-approved attachments – fork carriages, buckets, winches. If your machine came with a different setup than the standard, this section tells you the correct operating limits and hydraulic pressures. Don’t assume an aftermarket attachment works without checking the rated capacity here. One wrong calculation can drop a load on someone. Also relevant: the K-D Manitou D 2876 LE 401-405 Operators Manual – OEM Marine Diesel if you’re servicing the engine separately.

Language Barrier? Diagrams Work Anyway

The manual is printed entirely in Dutch. Every safety label, instruction, and spec is in Dutch. But the pictograms, torque tables, and dimensional drawings are universal. Any mechanic who has worked with European equipment knows the numbers don’t need translation. If you need an English translation of a specific page, you can look up the glossary online. For the actual torque values – like the wheel nut spec on page 26 – the number is just a number. The Manual Transmission section in this manual refers to the mechanical shifting on non-Powershift models, and you can cross-reference that with any standard manual transmission troubleshooting guide if you hit a problem. But the factory procedure is here, not in a generic book.

Source Authenticity – Why You Want the Original Print

This is not a scanned reprint, not a third-party compilation. It’s the original PDF from Manitou France, dated 12/05/2003. Page 4 carries the copyright warning: copying is forbidden. The document has 169 pages, covers seven machine configurations including the MLT 634-120 LSU POWERSHIFT, and was meant to stay inside the cab. Aftermarket manuals often omit the safety warnings (chapter 1) to save space. This one doesn’t. The Manual Transmission info on the older MLT models is also included, so you get both the hydrostatic and gearbox procedures in one place.

FAQs

Is this manual in English?

No, it is the original Dutch factory manual. The diagrams and numerical specs (torque, pressures, capacities) need no translation. Labels on switches and safety warnings are in Dutch.

Does it cover the Powershift transmission on the MLT 634-120 LSU POWERSHIFT?

Yes. The Beschrijving chapter details the Powershift controls and shift patterns. The maintenance chapter includes fluid capacities and filter part numbers specific to the Powershift unit. If you are troubleshooting a shift problem, this manual gives the factory test pressures. Do not attempt to adjust the clutch packs without those numbers – you will damage the transmission.

Access the Factory Manual. Put it on a tablet or print it out. If you’re running a Manitou MLT 630 Turbo, MLT 630-120 LSU, MLT 634 Turbo LSU, MLT 634-120 LSU, or the MLT 634-120 LSU POWERSHIFT from 2003, this is the document that keeps the machine running and the operator safe. No guesswork. No missing pages. Just the OEM specs Manitou printed.