Description

Doosan DX350LC 2008 Workshop Manual

If you are a tech or an owner putting wrenches on a DX350LC, the factory book is the only thing between you and a torn-down machine that won’t go back together. I have seen guys lose an afternoon because they used aftermarket torque specs from a forum. That is time you don’t get back. This Doosan DX350LC 2008 Workshop Manual runs 828 pages and comes straight from Doosan Infracore. It covers serial number 5980 and up. Print it, spill oil on it, use it on the bench.

Safety chapter alone runs over 50 pages. It covers everything from welding repairs to high-voltage cable avoidance. You skip that at your own risk.

Safety Section: What the Factory Expects

Pages 1 through roughly 50 of this manual are not filler. The “Track Excavator Safety” chapter includes specific procedures for handling accumulators, high-pressure lines, and battery hazards. Doosan lists the proper tools needed for each job. For example, when working on the hydraulic system, they tell you to use a pressure gauge with a specific range. Aftermarket books gloss over this. The factory manual gives you the signal words, the exact safety label locations, and the precautions for traveling on slopes. Subsections like “Mounting and Dismounting”, “Fuel and Hydraulic Fluid Fire Hazards”, and “Welding Repairs” give you step-by-step safety checks that protect both the machine and the person turning the wrench. I have used this section to train new hires on what not to do.

Specifications That Actually Match Your Machine

The “Specification for DX350LC” chapter gives you the general dimensions, working range, and engine performance curves per DIN6270 standard. Need travel speed? It is in there. Swing speed and deceleration force tests are outlined with pass/fail criteria. This is not generic data. It is specific to the DX350LC with serial number 5980 and up. The performance tests include travel motor balance and steering deviation procedures. You can verify your machine is within factory spec before you start digging into a major repair.

General Maintenance and Standard Torques

Every tech knows that stripping a bolt on a $50,000 excavator is a bad day. The “General Maintenance Procedures” chapter covers hydraulic system cleanliness, welding precautions, and bearing inspection. Then the “Standard Torques” section gives you the exact ft-lbs for each fastener group. Do not use a generic chart. This manual lists torques for the specific grades and sizes Doosan used in 2008. I have page 73 bookmarked for the charge pressure values. Keep it handy.

Hydraulic System Troubleshooting

The “Hydraulic System Troubleshooting, Testing and Adjustment” chapter is probably the most dog-eared section in my shop. It walks you through diagnosing swing speed issues, cylinder drift, and pump performance. It includes the accumulator procedure, center joint (swivel) inspection, and cylinder disassembly. If your DX350LC is slow on the swing or the boom drops overnight, this chapter tells you which test to run first. Page numbers for specific tests are listed in the table of contents.

Who This Manual Serves

I get calls from DIY owners who buy a used DX350LC for a farm project. They want to change the hydraulic filter or adjust the track tension. This manual is for them, but they need to be comfortable reading specs and following a sequence. It is also for the shop foreman who needs to hand a tech a reliable source. Beginners should start with the safety section and then move to the maintenance procedures. Do not skip the torque values. The manual does not assume you know everything—it just gives you the steps.

OEM vs Aftermarket – No Contest

I have seen aftermarket manuals that claim to cover the DX350LC but they mix procedures from different serial number ranges. That is dangerous. This is the original factory document published by Doosan in 2008. It has the K1046036E publication number. The wiring diagrams, hydraulic schematics, and torque tables are all verified against the actual machine. If you are serious about keeping your excavator running, you do not gamble with reprints. This is the OEM handbook.

Frequently Asked Questions

Does this manual cover the DX350LC with serial numbers below 5980?

No. This manual is for serial number 5980 and up. Earlier machines may have differences in the hydraulic system or wiring.

Can I print this manual or use it on a tablet?

You can print it or load it on a tablet. I prefer a printed copy in the shop because grease and screens do not mix.

What torque specs are included in the Standard Torques chapter?

The Standard Torques section covers fastener grades and sizes used on the DX350LC. It includes ft-lbs for bolts, nuts, and flange connections. Doosan also provides tightening sequences for cylinder mounting bolts and swing gear fasteners. Do not use generic automotive torque specs on this machine – the values are different because of the high vibration environment. Always verify against the manual.

Does the manual include wiring diagrams?

Yes, the manual includes electrical schematics in the Upper Structure and Cabin sections. They are not generic; they match the 2008 DX350LC harness layout.

If you work on other Doosan excavators, you might need the Doosan Solar 340LC-V 2002 Workshop Manual – 656 Pages OEM, Doosan DX140W, DX160W 2006 Workshop Manual – 1180 Pages, or Doosan DH130W 2023 Workshop Manual – 470 Pages OEM.

For a refresher on manual transmission fundamentals, check Manual Transmission on Wikipedia. Also understand the differences in Manual Transmission used in older equipment.

Stop guessing with forum specs and third-party reprints. Get the real data straight from the manufacturer. Order your copy today and access the Factory Manual for your Doosan DX350LC from AutoRepairManuals.