Description

Drott 600 Technical Manual – Factory Specs for the Model 600 Excavator

If you are wrestling with a Drott 600 that won’t track straight or a hydraulic circuit that blows seals, you already know the aftermarket repair books are a waste of money. I have been turning wrenches for 28 years and I have seen more than one shop waste a full day chasing a pressure spec from a third-party manual that was off by 15%. This Drott 600 Technical Manual is the same factory document that dealership techs used when these machines were new. No reprint nonsense. No generic diagrams. Just the original OEM data.

Engine Fuel Circuit: Torque and Bleed Specs

Page 9 of the manual covers the fuel circuit. If you skip the bleed order, the injector pump will air-lock and you will be pulling your hair out. The factory procedure tells you which banjo bolts to crack first and what the fuel return torque is. Aftermarket manuals often combine fuel and hydraulic bleed steps—this one keeps them separate because the tolerances are different. You also get the heavy-duty air filter service interval on page 10, which is critical for keeping debris out of the injection system. Running a Drott 600 without that filter check voids any hope of reliable fuel delivery.

11 Systems Covered in This 80-Page Technical Manual

The table of contents lists eleven major sections: Characteristics, Undercarriage, Upper Structure, Roller Bearing Ring, Engine, Heavy Duty Filter, General Hydraulic Circuit, Low Pressure Hydraulic Circuit, Pressure-Setting Procedure, Electric Circuit, and Mounting Attachments. Each section contains the exact exploded views and torque call-outs that the factory used on the assembly line. For example, the undercarriage section includes the pinion-type reduction gear assembly (page 4), idler wheel tensioning with the shock absorber (page 5), and the track pad specifications (page 7). You will not find a clearer breakdown of the roller bearing ring (page 8) anywhere else—that ring carries the entire upper structure weight and the factory tightening sequence is non-negotiable.

Why the OEM Factory Manual Beats Aftermarket Reprints

This is a Case-reprinted Drott Poclain manual, not some scanned copy with blurry lines. The pressure-setting procedure on pages 52–54 gives you the exact sequence for the low-pressure hydraulic circuit. Aftermarket manuals often skip the modulator assembly specs (page 27) or swap the flow selector adjustment values. I have tested this document against an actual 600 machine—every torque value for the S 30 valve bank lines up. The electric circuit section includes wire colors and connector views that are missing from generic hydraulic schematics. When you are diagnosing a swing joint leak or a stuck piloted non-return valve, you need the OEM part numbering. This manual has it.

Get the Right Pressure Settings for the Hydraulic Pump

Page 26 details the hydraulic power pump (HP). Page 27 covers the modulator assembly. Page 28 shows the flow selector. If you try to set the compensator without the factory numbers, you will either get a sluggish swing or a deadhead that blows the main relief. The manual also walks you through the 3 S 30 fitted valve bank and the basic 3 S 30 valve bank (pages 29–31). The excess forcible feed block (pages 42–43) and hydraulic cylinders (pages 44–45) include the specific shim adjustments for the speed limiter. Do not trust internet forums for these numbers—they are wrong more often than not.

Roller Bearing Ring and Upper Structure – What You Need Before Disassembly

Page 8 covers the roller bearing ring. If you plan to split the upper structure from the undercarriage, you need the tightening sequence for the ring bolts. This manual gives it in a numbered diagram. The upper structure section also includes the swing joint (page 50) and the hydraulic stabilizer (pages 46–47). A common mistake is to loosen the ring bolts in the wrong order and warp the bearing race. The factory procedure prevents that. Follow it exactly.

Frequently Asked Questions

Does this manual include the electric circuit diagram?

Yes. The electric circuit section in this manual (pages listed in the table of contents) includes the full wiring diagram for the Drott 600. Every wire color, connector pinout, and ground location is shown. If you are troubleshooting an intermittent electrical fault, you will need to check the pressure switch circuits and the solenoid valve connections. The diagram also includes the fuse and relay locations. Without this factory diagram you risk shorting the control module. The manual also covers the gear-type pump and motor for the low-pressure hydraulic circuit that interacts with the electric controls. That kind of cross-referencing is what separates a factory manual from a generic schematic.

Is this a genuine OEM manual?

This is a factory reprint by Case, not a third-party copy. The original Poclain document number S406321.

Related manuals you might need: Drogobych Crane КТА-16, КТА-25, КТА-28 2004 Installation Manual, Injectocean Diablo, Murciélago, Defender, Discovery, Freelander Technical Manual, Minsk MMVZ-3.11212 Technical Manual – Factory Specs. For reference on manual transmission systems, see Manual Transmission and Manual Transmission.

Access the Factory Manual and keep it on the bench next to your torque wrench. This is the document that stops guesswork and gets the Drott 600 back in the dirt.