Description

Liebherr LTM 1350-6.1 2009 Technical Manual

You’ve got a 1350-6.1 on the pad, suspension valves leaking, and the shop manual you obtained from some forum has torque values that don’t match anything Liebherr ever printed. That’s the moment you wish you had the factory binder in your hand. This isn’t a reprint or a scan of a scan. It’s the genuine 2009 OEM Technical Manual – 16 pages of what Liebherr Werk Ehingen actually used on the assembly line. Every diagram, every pressure spec, every test point location came straight from the drawing board. If you’re touching any part of the hydraulics, steering, outriggers, suspension, or compressed-air system on this crane, you need this document on your tablet or bench.

General Outlay Test Points: What You Get on Page 3

Page 3 of the manual shows the General Outlay with all test points mapped out. You get the exact locations for pump steering circuit I and II, initial tension centering cylinder, pump rear axle steering, centering pressure, pressure reservoir rear axle steering, and the M-designated ports. Miss one test point and you’ll be chasing a phantom drop for hours. The manual labels M1, M2, M6, M7, M8, M9, M11, M16, M19. No guessing which port does what.

Hydraulics Suspension: 1st & 2nd Axle Diving

The suspension section covers both front and rear axle groups – pages 10 and 11 are dedicated to the 1st+2nd axle and 3rd-6th axle circuits. If you’re retrofitting or rebuilding the nitrogen-charged accumulators on this LTM 1350-6.1, you need the factory schematic. Aftermarket manuals often merge the two axle groups into one generic diagram. This OEM print keeps them separate. That means your line routing and pressure specs stay accurate.

Compressed-Air System Breakdown: Pressure Supply to Control Axles

Four pages (12-15) walk through the compressed-air system: pressure supply, secondary consumers, driver’s cab control, and axle control. Each subsystem has its own sheet with component callouts and line sizes. Don’t trust a universal pneumatic diagram because a 1350-6.1 uses a twin-circuit air brake with a separate reservoir for the rear steering lock. The OEM manual shows you the exact plumbing from the wet tank to the spring brakes.

7 Systems Covered – But Only 16 Pages

Don’t let the page count fool you. This manual is dense with factory data: General Outlay, Hydraulics pressure supply, steering (1st+2nd axle and rear axle), outriggers front and rear, suspension, and the full compressed-air system. Every page is a fold-out schematic with part numbers, plug groupings, and pressure tap locations. You get the BMK-Index on the last page to cross-reference revisions. Compare that to a 500-page aftermarket manual that recycles the same generic diagram for every model – I’ll take 16 pages of genuine Liebherr every time.

Who Needs This Manual: The Shop and the Owner

If you own a 2009 LTM 1350-6.1, you need this for the compressed-air and hydraulic suspension overhauls. If you manage a fleet, put one copy on the shop tablet and another in the binder in the truck cab. Beginners: this is not a tutorial on how a hydraulic pump works. It’s the reference you open when the system drops pressure and you need to find the test point. Professionals: you already know to verify torque values against the factory sheet before you tighten a banjo bolt.

Why OEM Print Beats Aftermarket Revisions

I’ve seen third-party manuals that list the wrong port size for the outrigger pilot line – they confuse the front and rear outrigger schematics. This Tech Manual came from Liebherr Werk Ehingen, revision Iwereo2 issued 06.11.2009. The copyright page warns: reproduction or disclosure without authority is forbidden. That tells you it’s an internal plant document, not a summary. For the suspension circuit, you get the exact hydraulic symbols used by the engineers, not a re-drawn approximation. That matters when you’re troubleshooting a slow steer or a sagging outrigger.

Related Manuals

• Liebherr LTM 1350-6.1 2009 Wiring Diagram – Section: Plug Grouping General Outla
• Liebherr LTM 1350-6.1 2010 Parts Catalog
• Liebherr R 9350 Technical Manual – Specs for Big Iron

Frequently Asked Questions

Does this manual include torque specifications for the suspension mounting bolts?

The manual focuses on hydraulic schematics, test points, and line routing. Torque specs are not printed directly on the hydraulics pages, but the system pressures and centering cylinder initial tension values are listed for the suspension. For fastener torque, you would cross-reference the Liebherr standard torque table – this manual doesn’t include a separate torque chart.

Is the compressed-air system coverage relevant for the 2009 model year?

Yes.

How many pages cover the hydraulics outriggers?

Two pages – page 8 for front outriggers, page 9 for rear outriggers. Each page shows separate proportional valve banks, pilot pressure lines, and check valve locations. If you mix them up, you risk connecting the rear outrigger extend line to the front return port. The manual keeps them distinct.

Can I use this manual alongside a wiring diagram for the same machine?

You should. The hydraulic and electrical systems interact on the suspension control and steering lock solenoids. The Manual Transmission in the crane’s drivetrain uses a pneumatic shift interlock that ties into the compressed-air system from this manual. Pairing this Technical Manual with the wiring diagram gives you the full picture. For the Manual Transmission service intervals, the air pressure specs here are mandatory.

Every Liebherr LTM 1350-6.1 2009 Technical Manual on AutoRepairManuals is a direct OEM scan – not a re-drawn, re-packaged third-party mess. 16 pages of factory hydraulics, compressed-air, and suspension schematics. Access the Factory Manual now and stop losing billable hours to mislabeled ports.