Terex Fuchs Mhl350 Electrical Schematic

You got a machine that won’t crank, a work light that flickers, or a warning lamp that stays on no matter what. Without the right schematic, you’re chasing ghosts with a test light. I’ve seen guys spend a full day because they guessed at a relay pinout – then melted a harness. This Terex Fuchs Mhl350 Electrical Schematic is the factory-original document. 50 pages, no aftermarket redraws, no translation errors. It lists every fuse, relay, and connector part number with the exact Terex Fuchs reference. When you need to know which fuse feeds the travel alarm (F9, part 5 850 036 034 – page 2), it’s in here. Stop wasting time on generic wiring diagrams that show a generic starter circuit. This is the real thing.

Power Supply and Starter System (Sections 1-2)

Section 1 maps the entire power supply: battery, battery switch, and all 20 fuses (F1 through F20). Each fuse has a Terex Fuchs part number next to it. Section 2 covers the starter system – start relay, solenoid, starter motor, neutral switch, reverse light switch, stop switches, and glow plug circuit. If your Mhl350 won’t crank in cold weather, check the glow plug relay (5 850 026 015) and the neutral switch. The schematic shows exactly which wire goes where. No guessing.

Indicators, Lamps, and Warning Systems (Section 3)

Section 3 breaks down every indicator: oil pressure shut-off, brake pressure shut-off, water temperature, air filter, parking brake, warning light, hour counter, and fuel indicator. You get both the device name and the part number for each lamp. Example – oil pressure warning lamp is listed under 3.1. No aftermarket manual gives you this level of detail. The schematic also shows how these lamps tie into the shutdown circuits. Crucial safety info that keeps a blown engine from leaving you on the side of a job site.

Work Hydraulics and Gear Shift (Sections 7-8)

Sections 7 and 8 cover the gear shift and work hydraulics. You get the switch-in-seat, switch-in-cab, brake switch, neutral switch for gear shift. For work hydraulics: pressure switch filter (5 850 039 023), warning lamp, and brake pressure warning lamp. The schematic shows the interlock logic – how the cab switch prevents hydraulic engagement without an operator present. If you’re retrofitting or troubleshooting a no-move condition, this is where you look.

Source Authenticity: OEM vs. Aftermarket

I have rebuilt more material handlers than I can count. Aftermarket schematics are trouble. They leave out ground paths, swap pin numbers, or combine multiple model years into one mess. This document is a direct Terex Fuchs factory print. The file name alone – TerexFuchs_Mhl350_Electrical_Schematic_en-46124010964.pdf – tells you it comes from the OEM archive. You get the legend of electrical schematics for all machines, a translation list (E3), and even the hydraulic schematics section. Nothing is redrawn or condensed. Every connector, every wire color is as the factory intended.

Who Needs This Manual?

Home garage enthusiasts and fleet mechanics alike. If you maintain a Mhl350 at a scrap yard, construction site, or rental fleet, this schematic saves you a tow bill and a weekend of head-scratching. Beginners: this manual assumes you know how to read a diagram. It does not hold your hand through basic electricity. But if you can identify a relay coil from a contact, you can diagnose a dead wiper motor (6.1, wiper motor 5 850 039 021) or a failed headlight (5.1, left headlight 5 850 039 013) in minutes. Related manuals: Terex Fuchs MHL360 Electric Schematic”>Terex Fuchs MHL360 Electric Schematic, TEREX FUCHS MHL320D 2007 Electrical Schematic”>TEREX FUCHS MHL320D 2007 Electrical Schematic, and Terex Fuchs MHL360 2011 Parts Catalog – OEM Factory Manual”>Terex Fuchs MHL360 2011 Parts Catalog – OEM Factory Manual.

Does this schematic include the full hydraulic circuit?

Yes. The manual contains a separate Hydraulic Schematics section. It covers the main pump, cylinder circuits, and proportional valves. Not every page is reproduced in the preview, but the entire hydraulic system is documented.

Can I use this on a D-Series Mhl350?

This schematic covers models before D-Series. There is a dedicated section titled “Electric Schematics FQC before D-Series”. For D-Series and later, look for the updated factory manual.

For broader background on reading these diagrams, see this Automotive Wiring”>Automotive Wiring resource. Or check the Automotive Industry Overview for context on why OEM documentation matters. If you need to trace a short in the lighting circuit or verify starter relay pinout, this is the only document you should trust. It is not a reprint. It is not a third-party compilation. It is the factory file, delivered as-is. Download the Factory Manual and get your Mhl350 back to work.