Description

Manitou MT 1240 L Turbo, MT 1335 SL Turbo, MT 1235 S, MT 1435 SL, MT 1340 SL Turbo 2006 Technical Manual

You’ve got a telehandler that won’t start, or a hydraulic leak that’s soaking the shop floor, and the aftermarket PDF you grabbed online says the head bolt torque is 85 ft-lb. On a Manitou MT 1240 L Turbo? That’s wrong. I’ve seen that mistake crack a cylinder head. This is the real thing: the factory Technical Manual from 2006, covering the MT 1240 L Turbo, MT 1335 SL Turbo, MT 1235 S, MT 1435 SL, and MT 1340 SL Turbo. 226 pages of OEM data, originally printed in Dutch but every spec transfers straight to your workbench. No reprints, no third-party summaries – just the same binder the dealers used.

Section 1: Safety Instructions – Where the Manual Begins

Chapter 1 – Veiligheidsvoorschriften – is the first thing you see. Any tech who skips this section because they think they know safety is the same tech who gets a line under pressure in the face. This manual lists every lockout, every lifting point, every pressure bleed procedure specific to these models. Page 1-1 gives you the full hazard classification system. Ignore it and you’re working blind.

Description Chapter: What Each Model Carries

The Beschrijving section (Chapter 2) is where you find serial number ranges, engine specs, transmission details, and control layouts for all five models. The MT 1335 SL Turbo and MT 1340 SL Turbo share a common frame but different hydraulic pump outputs – the manual spells out the differences in flow rate and pressure. If you’re swapping components between a MT 1435 SL and a MT 1235 S, check this section first. You’ll save yourself a hydraulic mismatch that costs a day of flushing.

3 Systems Covered in the Maintenance Chapter

Chapter 3 – Onderhoud – is the meat of this manual. It breaks down the maintenance intervals for engine oil, hydraulic filters, fuel system, and cooling system. Each procedure has a tool list. For example: to replace the injector on a MT 1240 L Turbo, you need a 27mm deep socket and a torque wrench calibrated to 40 ft-lb. The manual gives you the torque for every fastener on the boom pivot pins, wheel lug nuts, and engine mounts. No guesswork. Need the charge pressure for the brake accumulator? It’s in the hydraulic subsection. I’ve used this section to rebuild a stuck control valve on a MT 1335 SL Turbo in under two hours because the step-by-step includes the shim stack order.

Optional Accessories: What This Manual Covers Beyond the Base

Chapter 4 – Optionele Toebehoren – covers the add-on kits: cab heaters, third-function hydraulics, auxiliary lighting, and quick-attach systems. If you’re installing a 4-in-1 bucket on a MT 1435 SL, the manual shows the exact wiring diagrams for the solenoid valve. The OEM pinout schematics are here, not a generic diagram that swaps two wires and blows a fuse. This section alone is why I refuse to use aftermarket manuals for Manitou equipment.

Factory Spec Data: Why This Beats Aftermarket Every Time

I’ve got a stack of aftermarket manuals in my office – they’re good for door stops. This Technical Manual is the original OEM file, published in 2006 with multiple updates through 2006 (see the revision dates on page 2-78). The torque values are the same ones Manitou stamped in the factory. The wiring diagrams match the harnesses you’re actually looking at. No translation errors, no missing pages. If you want to do the job once and not have it come back on a flatbed, this is the manual you use.

Audience Fit: Who Needs This Manual on the Bench

If you own a MT 1240 L Turbo, MT 1335 SL Turbo, MT 1235 S, MT 1435 SL, or MT 1340 SL Turbo and you’re doing any work beyond fluid changes, get this. DIY guys: the step-by-step prevents you from tearing down the wrong side of the transmission. Professional mechanics: this cuts diagnostic time because you have the factory bleed sequence and pressure tests. Workshop owners: having this on the shelf means your techs aren’t making up procedures. I keep a copy next to my laptop for when a Manitou rolls in.

FAQ

Does this manual cover the MT 1440 SL Turbo?

No. This manual is for the listed five models only. The MT 1440 SL Turbo is in a separate publication. Check the Manitou MT 1435 SL/MT 1440 SL Parts Catalog 2005 – OEM Specs if you need parts data for that chassis.

Is the manual in English?

It’s the original Dutch factory document. But technical specs, torque values, and diagrams are universal. You don’t need to read Dutch to follow a torque sequence or a wiring diagram.

What torque values are listed?

Engine head bolts, bearing caps, wheel lugs, boom pivot pins, hydraulic line fittings – all in ft-lb. The maintenance chapter includes a torque table for every major fastener. That’s what makes it a real manual.

Can I use this for a manual transmission overhaul?

Yes, but the transmission section is limited to the factory-specified Manual Transmission used in these models – the MT 1240 L Turbo uses a Borg-Warner unit. For a full teardown, you’ll also want the Manual Transmission supplement from the parts catalog. That said, the hydraulic and electrical sections alone justify the purchase.

Don’t waste time sorting through forum threads and mismatched PDFs. Access the Factory Manual now and get the exact data Manitou put in the dealer binders. Your telehandler will thank you, and your wallet won’t be paying for a second repair.

Related Manuals

• Manitou MT 1435 SL/MT 1440 SL Parts Catalog 2005 – OEM Specs
• Manitou MT 1435 SL, MT 1440 SL, MT 1435 SL Turbo, MT 1440 SL Turbo, MT 1440 SL T
• K-D Manitou Industrial Gas Engines Technical Manual – OEM Fluid Specs