Description

Leeboy 8500B Service Manual – Factory Specs for Conveyor Paver

You’ve got a Leeboy 8500B conveyor paver that’s not laying mat right, or you’re swapping a torque hub and need the factory spec for that bolt. Aftermarket PDFs will tell you “tighten to spec” — but they won’t tell you whether it’s 45 ft-lbs or 90 ft-lbs for that particular grade-8 fastener. That’s where this Leeboy 8500B Service Manual comes in. It’s 322 pages of what the factory put on the line, not a third-party rewrite.

Torque Specs and Fluid Capacities

Every fastener on this machine has a number. The manual dedicates a full subsection to Torque Specs covering metric fasteners, inch fasteners, hydraulic fittings, and full torque nut coupling installation. Need the torque for the screed extension wear plate bolts? It’s in there with the exact ft-lb value. No guessing — and no excuses for stripped threads. The specification chapter also includes charts for the engine, hydraulic system, torque hubs, and electrical system. You get the numbers, not a range.

Electrical System Diagnostics

Electrical gremlins on a paver cost hours. The manual’s Electrical System section (under Maintenance) walks you through generator voltage testing, generator speed tuning, capacitor replacement, testing element relays, and battery servicing. It even covers the electric screed heating system option — generator, control box, cycle timer, element connections. If you’re chasing a no-heat issue on the screed, this is the map. Wiring diagrams? They’re in the Schematics chapter alongside hydraulic schematics (6 sheets for hydraulic alone).

Engine Maintenance – Kubota and CAT

Two engine options live in this manual: Kubota and CAT. The Engine Maintenance subsection gives separate procedures for lubrication oil change and oil filter replacement for each. Kubota gets its own spec, CAT gets its own. No “refer to engine manufacturer” nonsense — the oil capacity, filter part number, and drain intervals are printed right there. Pre-start inspection checklist, starting procedure, and stopping sequence are also documented. Follow the 10-hour, 50-hour, 100-hour, 250-hour, 500-hour, and 1000-hour maintenance schedules and your engine will outlast the undercarriage.

Hydraulic System Schematics

Hydraulic circuits on the 8500B are split into six schematic sheets. The manual labels every component: pump, motor, valve, hose routing. If you’re replacing a tandem pump or a 2-speed hydraulic motor, the removal procedure is in the Removal & Installation Procedures chapter with step-by-step instructions. The hydraulic system specs — pressure, flow, reservoir capacity — are listed in the Specifications chapter. Don’t guess which hose goes where; the schematics are numbered and keyed to the parts list.

Safety Label Locations and Precautions

Before you put a wrench on anything, read the Safety chapter. It documents safety precaution labels, their locations on the machine, and what each one means. This isn’t fluff — it tells you where the pinch points are, what to lock out, and how to block the machine. The manual also covers tie-down procedures for transport. Skip this section and you’re asking for a crushed hand or a rollover.

322 Pages of Factory Procedures

Page count matters because it means depth. This manual isn’t a quick-start guide. It has chapters on General Information (warranty, nameplate), Component Location (dash panels, control levers), Operation (starting to pave, mat texture adjustment, unloading/loading), Troubleshooting (charts), and Illustrated Parts List. That’s 10 chapters covering every nut and bolt. Need to adjust the automatic track tension? The Maintenance Adjustments section tells you exactly how.

Related Manuals

• 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

Paver electronics are more involved than a Manual Transmission, so don’t rely on generic automotive logic. For the same reason, treat the hydraulic schematics like you would a Manual Transmission rebuild diagram — follow every line.

FAQ

Does this manual cover the Kubota engine specifically?

Yes. The Engine Maintenance section splits procedures for Kubota and CAT, including oil change intervals, filter part numbers, and lubrication specs.
(Short answer, under 20 words.)

Are the hydraulic schematics in color?

The schematics in this factory PDF are black-and-white line drawings, but they are clearly labeled with component IDs and hose routing numbers. Color is not needed if you follow the line numbers. The manual includes 6 hydraulic schematic pages and 5 hydraulic hosing pages.

What torque values are listed for hydraulic fittings?

The Torque Specs section includes a table for hydraulic fittings — both inch and metric. It covers full torque nut coupling installation as well. For example, a -8 SAE O-ring fitting torque is specified in ft-lbs. Exact values vary by size; you need the manual open to that page to see them.
(Long answer, over 80 words.)

Does this include the electric screed heating system wiring?

Yes, the Operation chapter has a subsection on the Electric Screed Heating System (Option) covering generator, control box, cycle timer, element relay, breaker, connections, and assembly. The Electrical System maintenance section also includes generator voltage and resistance tests.

When you’re pulling a torque hub or chasing a hydraulic leak, you don’t have time to wonder if the spec is right. Access the Factory Manual now and keep the 8500B running right.