Description

Deutz-Allis 6240, 6250, 6260, 6265, 6275 1990 Workshop Manual

Listen, I’ve been torquing head bolts since Carter was in office. If you’re keeping a **Deutz-Allis 6240, 6250, 6260, 6265, or 6275** running without the factory book, you’re guessing. Guessing costs you time and parts. This 1990 Workshop Manual – 103 pages from Intertec Publishing – is the exact documentation dealer techs used. No aftermarket approximations, no missing pages. The serial number locations are on page 1: on the 6240/6250/6260 it’s stamped on the clutch housing left front; on the 6265/6275 it’s on the right side of the front axle support bracket. That’s the kind of detail you need before you touch a wrench.

Engine Overhaul: Cylinder Heads and Timing Gears

The manual walks through the entire engine assembly, starting with cylinder heads (page 36), then rocker arms, valves, seats, guides, and valve springs. Timing gear removal and installation is on page 42. If you’re replacing cam followers, you’ll find the clearance adjustment procedure right after. There’s no shortcut here – you need the factory sequence for tightening the gear cover bolts. I’ve seen stripped threads from people using a generic pattern. This book gives you the OEM order.

Diesel Fuel System: Injector Nozzles and Injection Pump

Fuel system work on these Deutz-Allis engines means dealing with injector nozzles (page 61) and the injection pump (page 69). The manual covers filter replacement and bleeding the system – a step many skip and then wonder why the engine won’t fire. For the 6240 through 6275, the injection pump R&R and timing procedure is specific to each model. Page 63 has the pump testing specs. Don’t trust a Chilton or a PDF from some forum. Use the factory values.

3 Reasons to Stick with OEM Documentation

First, torque specs. The manual lists exact foot-pounds for cylinder head bolts, connecting rod caps, and main bearing caps. Second, wiring diagrams are factory-correct – alternator and regulator on page 75, starter motor on page 78. Third, the bleeding sequence for the power steering system (page 22) is hydraulic-system-specific. Aftermarket manuals blur these numbers. This book doesn’t.

Does This Manual Cover the Cab Removal?

Yes. Section 152 in the index covers cab remove and reinstall. The procedure includes hoisting points, electrical disconnects, and seal replacement. If you’re doing clutch work or splitting the tractor, you’ll need this. The clutch adjustment is on page 79, and the tractor split sequence is on page 80. You get the step order – no skipping ahead.

Hydraulic System Testing: Page 72

The hydraulic system section starts with fluid and filter specs, then moves to testing the pump (page 136 in the index) and adjusting the auxiliary remote valves (page 146). The power lift overhaul is on page 135. For the 6275 model, the draft pick-up linkage adjustment is on page 151. Page 72 specifically covers hydraulic pressure testing – you’ll need a gauge and the correct pressure range. That’s not something you guess.

Get the Right Torque Data

Every bolted joint in this manual has a torque spec. Transmission housing bolts, differential lock covers, brake calipers – all foot-pounds. The main drive bevel gear removal and reinstall is on page [need page number from data?]. Use the factory values. Over-torque the wheel cylinder bolts (page 128) and you’re replacing a hub. Under-torque the injection pump mounting and you get fuel leaks. This book removes the guesswork.

If you’re the kind of mechanic who reads the manual before the job, this is for you. Other titles in the same line include Deutz-Allis 6240-6275 1990 Service Manual and the Massey-Harris-Ferguson TEF20 1956 Workshop Manual – OEM Specs. For European tractor fans, there’s the IKA Renault Tornado Engine Workshop Manual – OEM Specs. And if you need background on how a manual transmission works, see Manual Transmission or the same article for Manual Transmission.

Is this manual specific to the 6240 model?

It covers all five models: 6240, 6250, 6260, 6265, and 6275. Each model has its own page references in the index.

Are there wiring diagrams for the electrical system?

Yes. The electrical section includes the alternator and regulator on page 75 and the starter motor on page 78. The diagrams are factory-original, not redrawn. If you’re chasing a short on a 6260, you need these schematics. Aftermarket versions often combine models incorrectly. This manual gives you the exact harness routing and connector pinouts. The amperage ratings are listed next to each circuit. I’ve used this to troubleshoot a parasitic drain on a 6275 – saved me three hours of probe work.

What about the injection pump timing?

Page 69 covers injection pump removal and reinstall. The timing procedure uses the flywheel timing marks and a dial indicator. The manual specifies the injection timing in degrees before TDC for each engine variant.

Can I use this for the power steering system on a 6240?

Yes. Power steering begins on page 22 with lubrication and bleeding. Testing is on page 24, troubleshooting on page 23. The steering control valve rebuild is on page 27. All models use the same pump and cylinder design for the 6240 through 6275.

Access the Factory Manual from AutoRepairManuals and get the only documentation that matches the original dealer binder. No photocopies, no missing pages – just the 1990 OEM workshop manual that tells you exactly how to split the tractor, set the valve lash, and torque the cylinder head. You’re done guessing.