Description

Manitou MT 1155 Operators Manual – What You Actually Need on the Job

If you’re working on a Manitou MT 1155, you already know what happens when you skip the book. A misread load chart, a missing torque on a wheel nut, a hydraulic line that pops because you guessed the pressure. I’ve seen it. You’ve seen it. This Operators Manual is the one that should be in the cab of every MT 1155. 92 pages of factory correct information, not some third-party rewrite that leaves out the critical safety warnings.

International Symbols: Why That Page Matters

The manual opens with a full list of international symbols used on the machine. Inside front cover, page 1. That little picture of a seatbelt? Means fasten it. The engine stop symbol? Don’t pull that while driving. These aren’t cute decals – they’re safety instructions. You’d be surprised how many operators ignore them because they don’t know what they mean. This manual explains each one, clear as day.

Specs and Load Zone Charts – Pages 4 and 84

Chapter 2 gives you the machine specifications: weight, dimensions, fluid capacities. You need that for proper maintenance and when ordering parts. Then flip to page 84 for Load Zone Charts. That’s the part that keeps the machine upright. If you’re picking a load at height, you need the correct chart. Not “close enough.” Factory chart. The manual includes them. Use them.

Checklists & Safety – Chapter 3 and 4

Pages 6-7 are the checklists. Pre-operation inspection. Daily, weekly. I know it’s tempting to skip the walk‑around when you’re in a hurry. Don’t. The checklist is there because a loose bolt or a low tire can turn a routine job into a rollover. Chapter 4 (page 9) is all safety: overhead hazards, stability, proper towing. Read it before you let anyone touch the keys.

Indicators and Controls: Don’t Guess What That Light Means

Chapter 5 covers all the gauges, switches, and warning lamps. Hydraulic oil filter, transmission temperature, accumulator pressure, frame level indicators. I’ve had guys come in with a dead machine because they ignored the low accumulator pressure light. The manual tells you what each light means and what to do about it. No guessing.

Lubrication and Maintenance Schedules – Chapter 7 and 10

Chapter 7 (page 47) lists every grease point, oil grade, and interval. Use the right grease – not whatever’s on the shelf. Chapter 10 (page 67) is the maintenance section. Includes procedures for checking engine oil, hydraulic fluid, transmission, axles. Follow the intervals. A Manitou MT 1155 that gets regular lube will outlast three that don’t.

Standard Hardware Torque Data – Page 85

Page 85 has the torque specs for standard hardware – bolts, nuts, fasteners. That’s the page I turn to when a junior tech asks “How tight?”. You can’t guess torque on a machine that lifts tons. The table gives you the value in ft-lbs for each grade and size. Use a calibrated wrench. No exceptions.

Electrical and Hydraulic Schematics – Pages 78 and 82

Need to trace a wire or a hose? The manual has full electrical schematics on page 78 and hydraulic schematics on page 82. These are factory drawings – not redrawn by some intern. If you’re diagnosing a no‑start or a boom that won’t raise, start here. Saves hours of poking around with a test light.

Who Needs This Manual

If you own a Manitou MT 1155, you need this book in the cab. Period. It’s for operators, owners, and anyone who does their own maintenance. Beginners will find the safety and control descriptions essential. Pros will appreciate the torque data and schematics. It’s not a repair manual (though it has service info) – it’s the operator’s manual that comes with the machine when it leaves the factory. You’re buying the exact same document.

OEM Documentation vs. Aftermarket – No Contest

I’ve seen aftermarket manuals that claim to cover the MT 1155. They leave out half the safety warnings, misprint the torque values, and sometimes use the wrong schematics. This is the real deal – printed by Manitou North America, Inc., Waco, TX. Catalog 813256. The manual says right on page 2: “THIS OPERATOR’S MANUAL MUST BE KEPT IN THE LIFT TRUCK AND MUST BE READ AND UNDERSTOOD BY OPERATORS.” That’s not a suggestion. That’s the factory telling you what to do. Never trust a copy that doesn’t come from the OEM.

Frequently Asked Questions

Does this manual cover the engine overhaul?

No. This is an operators manual – it covers daily operation, safety, lubrication, and basic maintenance. For engine overhaul you need the service/repair manual. But it does include specs, fluid capacities, and torque data that apply to any work you do.

What format is the access?

PDF format. 92 pages, searchable, printable. Works on any device.

If you want to keep your Manitou MT 1155 running safe and reliable, stop relying on memory or vague instructions. Get the factory documentation that tells you exactly what to do – from the pre‑start check to the last torque on a wheel bolt. Access the Factory Manual today. It’s the only source you should trust. While you’re at it, check the related manuals below for the full parts breakdown and other engine manuals.

• Manitou MT 1155 Parts Catalog – 333-Page OEM Manual
• K-D Manitou D 2876 LE 401-405 Operators Manual – OEM Marine Diesel
• K-D Manitou D 2866 TUE Operators Manual – Factory Specs & Procedures

For basic background on how a Manual Transmission functions, see the external source. The same applies to Manual Transmission fundamentals – useful context for understanding the drivetrain in the MT 1155.