Bobcat 440B 1987 Service Manual

If you’re chasing a hydrostatic leak in a Bobcat 440B 1987 Service Manual territory, you already know the stakes. One wrong seal orientation and you’re pulling the splitter case again. This isn’t a Chilton reprint. It’s the Melroe Ingersoll-Rand dealer copy from 1987 – 174 pages of factory procedure that kept these skid steers running decades past their warranty.

Safety Instructions: Read Before You Touch Anything

Page 1 opens with a maintenance safety warning that could save your fingers. It explicitly states: “Never service the Bobcat Skid-Steer Loader without instructions.” That’s not lawyer fluff. The manual tells you to disconnect batteries, support lift arms with an approved device, and never go under raised arms without it. I’ve seen guys skip that step. It doesn’t end well. The fire prevention section on page ii covers fuel leaks, battery fumes, and welding hazards – all specific to the 440B’s layout.

7 Systems Covered in 174 Pages

The table of contents splits the machine into seven service chapters: Preventive Maintenance (1), Hydraulic System (2), Hydrostatic System (3), Drive System (4), Main Frame (5), Electrical System (6), and Engine Service (7). Technical Data (8) wraps it up with all the numbers you’ll need for fasteners, clearances, and capacities. Each chapter flows from disassembly to inspection to reassembly with torque values listed in imperial ft-lbs – no metric conversions to foul up your memory.

Engine Service: What the Factory Knew

Chapter 7 covers the engine – which power plant depends on your serial number. The manual guides you through cylinder head bolt sequences, valve adjustments, and injection pump timing. Don’t trust aftermarket data for those torque specs. I’ve seen head gaskets fail because a budget manual listed 65 ft-lbs when the factory called for 72. Page 73 (Technical Data) gives you the exact bolt torque chart. Use it.

Why This OEM Copy Beats Aftermarket

I don’t care how many stars a third-party PDF has. Aftermarket manuals often crop out the safety warnings, re-number wiring diagrams, or miss updated service bulletins. This is a genuine Melroe Company product – printed in 1987, dealer copy, not for resale. The electrical system chapter (6) includes schematic IDs and connector locations that match the actual harness. You will not find “typical” illustrations here. Every diagram is serial-number specific.

Skip the manual at your own risk.

What Does the Hydrostatic System Section Cover?

Chapter 3 is the heart of the 440B – the Hydrostatic System. It walks through charge pump removal, motor disassembly, and relief valve adjustment. The manual also includes the factory test procedure for checking charge pressure with a gauge. Understanding that loop is different from rebuilding a Manual Transmission, but the same discipline of following sequential steps applies. The drive system chapter (4) handles chain adjustment and sprocket wear limits – again, specs you won’t find in a generic shop guide. Compare this to rebuilding a Manual Transmission – the level of detail here is identical.

FAQ – Bobcat 440B 1987 Service Manual

Does this manual cover the electrical system for the 440B?

Yes. Chapter 6 covers the electrical system including the starter, alternator, fuses, and wiring schematic. The manual shows connector pin-outs and wire colors specific to 1987 production.

What torque specs are listed in the Technical Data chapter?

Page 73 lists bolt torque values for the engine, hydraulic pump, wheel motors, and frame fasteners. All values are in imperial foot-pounds. No conversion needed.

Is this the same as a reprint?

No. This is the original dealer copy scanned from a physical paper manual. It includes the safety warnings and fold-out diagrams that are often omitted in reprints or digital rebuilds.

Can I use this manual for a 440B with a different engine?

The manual covers the machine as built in 1987. Engine specifics depend on your serial number prefix. The procedures, torque specs, and system layouts remain valid for the 440B model regardless of engine variant. Check the serial number location on page iii to confirm.

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Every bolt, every circuit, every safety warning – it’s inside these 174 pages. Don’t waste time hunting for specs online that may or may not match your machine. Download the Factory Manual and get back to the job with the right numbers in hand.