Description

Leeboy 635B Operators Manual

If you run a Leeboy 635B motor grader and you’re relying on a worn-out photocopy or a third-party PDF that skips half the steps, you’re asking for a blown hydraulic line or a cold-shutdown seizure. I’ve seen it happen. This is the Operators Manual – 49 pages of factory text that covers exactly what you need to keep that grader running without burning billable hours guessing. No fluff, no reprints from some offshore shop. This is the OEM document from Leeboy.

Page 7 lays out the pre-start inspection in a sequence that actually matches the machine’s layout. Right hand and left hand sides are labeled so you don’t miss the chain box oil level or the final drive bolt torque. Page 8 gives you the engine shut-down procedure – letting a turbocharged diesel idle for exactly the right time before killing it prevents oil coking. The manual doesn’t assume you’re a new hire; it assumes you follow the list.

Pre-Start Inspection: 635B Operators Manual Covers the Checklist

Before you fire that engine, hit page 7. The manual walks through the control group, checking hydraulic reservoir level, verifying the articulated joint locking pin is engaged, and confirming the chain box oil. Skip this and you’re risking a dry final drive – replacement parts for a 635B aren’t cheap. The manual even tells you which decals to look for and what each means. That’s the difference between factory documentation and a generic cheat sheet.

Engine Shut-Down – Follow the Factory Procedure

You’d think turning a key is simple, but the 635B has a sequence. Page 8 instructs you to run the engine at low idle for 3–5 minutes to stabilize temperatures, then kill the fuel. No shortcuts. If you shut down hot, the turbo bearing cooks. The manual also covers what to do if the optional shutdown timer engages – not a common fault, but when it happens you need the factory wiring diagram to bypass it safely. For deeper repair work, the Leeboy 635B Service Manual covers tear-down and rebuild specs.

Hydraulic Diagrams and Preventative Maintenance Schedules

This manual includes two hydraulic diagrams: one showing valves, motors, pumps and reservoir (page 12), and another for valves, steering and cylinders (page 13). Both are critical when you’re bleeding air or replacing a hose. The preventative maintenance section dedicates separate pages to the engine, hydraulic system, chain box, and final drive. The lubrication chart (page 11) lists specific grease fittings and intervals – use the right NLGI grade, not whatever’s on sale.

Does the Wiring Diagram Section Help with Diagnostics?

It does. There are three wiring diagrams in this manual: the new style control panel for LDW series engines, the CHD series engine side wiring with optional sensors, and the full 635B motor grader wiring diagram. If your glow plug light stays on or the alternator isn’t charging, these diagrams give you wire colors, connector pinouts, and ground locations. For transmission-specific electrical faults, the Manual Transmission section of a separate service manual may be needed, but for operational diagnostics this manual gets you past 80% of the electrical issues.

3 Reasons to Stick with OEM Documentation for Leeboy 635B Operators Manual

First, the torque specs come from Leeboy’s engineering – not some editor guessing. Second, the parts illustrations in the back are actual factory drawings with correct part numbers. Third, the troubleshooting guide (page 17) isolates faults by symptom, not by generic category. You want to know why the blade drifts down? It’s in there. Aftermarket manuals often delete the wiring appendix or condense the lubrication chart into a single paragraph. This one keeps every line.

Related Manuals for Leeboy Equipment

• Leeboy SPR-H 2002 Operators Manual – OEM Factory PDF
• Leeboy L150, L250, L500 Operators Manual – OEM Factory Specs
• Leeboy 400 Operators Manual – OEM Factory Specs for Vibratory Roller

Does this manual include service intervals for the 635B?

Yes. The preventative maintenance section lists hours-based intervals for engine oil, hydraulic filter, chain box lube, and final drive oil. The lubrication chart on page 11 shows the exact fittings and grease recommendations.

Will it help me diagnose a no-start condition?

Check the troubleshooting guide on page 17 and the wiring diagrams on pages 14–16. If the issue is a dead battery or a bad starter solenoid, the diagrams will confirm the circuit. For deeper engine internal issues, you’ll need the service manual.

Don’t run a 635B blind. Get the factory document that matches your machine’s serial number group. Access the Factory Manual now and keep it on your shop tablet or print it for the binder.

For transmission rebuild procedures that go beyond operator-level maintenance, refer to a dedicated Manual Transmission service manual.