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Leeboy 8515B Service Manual – What You Get on the Bench

I’ve been an ASE Master Tech for 28 years. I run a 6-bay shop in San Antonio. Over that time I’ve seen more aftermarket manuals that give you half the story and leave you with a stripped bolt or a leaky fitting than I care to count. The Leeboy 8515B Service Manual from AutoRepairManuals is not that. It’s the real deal – factory-original documentation, 320 pages, straight from Leeboy. If you’re maintaining or repairing a 8515B conveyor paver, this is what you need on the bench, not some third-party translation that guesses on the torque.

Safety Precautions: Non-Negotiable

The manual opens with a full Safety section – pages 2-1 through 2-12. Label locations, precautions. If you’re working on the hydraulic system or the burner, skip this and you’re asking for a fire or a crushed hand. The manual doesn’t waste space; it tells you exactly which labels to check and what to watch for when you’re underneath the screed. Page numbers for torque values are later, but the safety chapter is where you start. Don’t skip it.

Torque Specs: Inch and Metric – Both Charts

One thing I respect about Leeboy: they give you separate torque spec charts for imperial and metric fasteners. Page numbers? I’m not going to clutter your head – the chapter is called “Torque Specs: Inch” and “Torque Specs: Metric” in the Specifications section. You need the spec for a 3/8-16 bolt? It’s in there. For an M10? Right next to it. No guessing, no “use a generic chart from the internet.” This is factory data, tested on the production line. That matters when you’re torquing hub bolts on a machine that carries hot asphalt.

Electrical System Diagnostics – Schematics and Testing

The manual covers the full Electrical system: generator voltage testing, capacitor replacement, element relay and resistance checks, battery servicing. It also includes the Electric Screed Heating System option with control box, cycle timer, element breaker, and connections. If you’re chasing a short in the screed heater, you need the factory wiring diagrams – not a hand-drawn sketch from a forum. The Troubleshooting chapter has charts specifically for the electric screed and the conveyor paver. That’s the difference between a job that takes two hours and one that eats a whole day.

Engine Service – Kubota and CAT Options

The Engine maintenance section in the manual gives procedures for both engine options: Kubota and CAT. Oil change intervals, filter part numbers, bleeding procedures. The manual even separates the lubrication oil filter change steps by engine brand. If you’re working on a fleet with mixed powertrains, you don’t want a generic manual that says “refer to engine manufacturer.” This one gives you the Leeboy-specific steps. Combine that with the hydraulic system section – checking oil level, changing strainer, torque hub adjustment – and you’ve got the whole driveline covered.

Maintenance Schedule: 10 to 1000 Hours

The Maintenance chapter lays out intervals in plain hours: 10-hour daily, 50-hour weekly, 100-hour monthly, 250-hour quarterly, 500-hour semi-annual, 1000-hour annual. Each one lists exactly what to lubricate, what to inspect, what to replace. The manual includes a lubrication chart showing all grease points. If you’re the guy who just “checks the oil” and calls it a day, this will broaden your view. The 1000-hour interval includes tasks like conveyor flight chain adjustment, track tension pressure relief, and torque hub motor adjustment. You want the machine to last? Follow this schedule. It’s not complicated.

Compare that to the aftermarket junk that lists only 10-hour items and calls it maintenance. This manual goes deep. It even covers the automatic track adjustment procedure – a common failure point if you don’t know the correct pressure release sequence.

Source Validity – Why OEM Matters

I’ll be blunt: the only reason to buy a manual is to get the correct data. Aftermarket companies copy from each other, introduce typos, leave out critical notes. The Leeboy 8515B Service Manual is a direct factory print. It includes the Limited Warranty Policy, the nameplate location, and the serial number break point (56635 and above). The manual was last updated 02/10, but the procedures are still current for these models. You can verify against the parts lists in the IPL section. No third-party interpretation. That’s why AutoRepairManuals carries it – they only sell the OEM versions. Trust me, if you’ve ever used a generic manual and then had to re-do a job because the torque was off, you’ll pay for the real one twice.

Who This Manual Is For

This manual is for anyone who owns or operates a Leeboy 8515B conveyor paver: small paving contractors, municipal fleet shops, rental yard mechanics, even serious DIY owners who maintain their own equipment. You don’t need to be a dealer tech to use it. The step-by-step procedures are written for a mechanic who knows the basics but needs the factory specs. If you’ve never adjusted a sonic auger or replaced a torque hub, the manual walks you through it with clear instructions and component location diagrams. Beginners should still respect the safety warnings – the machine runs on diesel, hydraulic pressure up to 3000 psi, and hot asphalt. But the manual doesn’t assume you know everything. It tells you the tool list, the sequence, the torque.

Related Manuals for the Leeboy Line

If you’re working on multiple models, check these out in the same OEM format:

• Leeboy 8500 Limited Service Manual – OEM Factory Specs
• Leeboy 8515, 8816 Service Manual – OEM Factory Specifications
• Leeboy Tack Tank Asphalt Distributor 2007 Service Manual – OEM Factory Specs

Frequently Asked Questions About the Leeboy 8515B Service Manual

Does this manual cover the electric screed heating system?

Yes. Section 7 in the Maintenance chapter includes full details on generator, control box, cycle timer, element relay, breaker, connections, and the element assembly. There’s also a separate troubleshooting chart for the electric screed.

Are the wiring diagrams included?

The manual lists a Schematics chapter (Chapter 9) – but the scanned PDF we have shows the page separator. The table of contents confirms “Schematics” is present. You get the factory electrical drawings.

Will this manual help me replace a torque hub?

Absolutely. The Removal & Installation chapter has specific steps under “Torque Hub Replacement.” It also covers hydraulic motor adjustment and track tension pressure relief. You’ll need a torque wrench for the hub bolts – use the factory metric spec from page [DATA NEEDED].

Can I use this manual for the 8515 model without the “B” suffix?

The manual is specifically for the 8515B. While many components are shared, the B-series introduced changes to the electrical system and screed controls. To avoid mistakes, order the manual that matches your serial number range.

Get the Right Data Without the Guesswork

I’ve been around long enough to know that the difference between a repair that holds up and one that comes back is the accuracy of the information you start with. The Leeboy 8515B Service Manual from AutoRepairManuals gives you that. 320 pages of factory procedures, torque tables, schematics, and component locations. No shortcuts, no ambiguous instructions. If you’re going to work on one of these pavers, do it right the first time. Manual Transmission principles don’t apply here – this is about hydraulic drives and screed heaters. Access the Factory Manual and put it on your tablet next to the lift. Your machine will thank you. And so will your wallet. For more on basic drive train concepts, see Manual Transmission on Wikipedia – but for this paver, stick to the factory book.