Description

GEHL 680 2007 Operators Manual – Factory Specs & Safety Data

If you are wrenching on a GEHL 680 2007 Operators Manual machine, you need the book that came from the factory, not some third-party rewrite with guesswork torque values. I have seen too many guys snap off a head bolt because they trusted a generic spec. This GEHL 680 2007 Operators Manual is the exact same 154-page document that sat in the glove box when the loader rolled off the line. It covers the 680 all-wheel steer loader starting at serial number 343010001. No surprises, no missing pages, no generic illustrations that look nothing like your machine.

Safety Instructions: What the 2007 Manual Covers

Every shop I have run starts a job with the safety section, not the wiring diagram. This manual devotes pages 18 through 35 to safety: general rules, additional safety equipment, transporting, loading, and specific hazard instructions. Page 22 lists safety reminders that the factory stamped into the machine. If you skip the transport section on page 23 you risk chain failure loading a 7,000 lb loader. The manual tells you exactly where to hook the tie-downs and what grade chain the engineers tested. That kind of detail saves your back and your customer’s equipment.

Operation and Controls: Getting It Right

Starting on page 36, the manual walks through cab layout, instrument panel, multifunctional lever, and drive lever. Page 44 covers getting the machine started – the glow plug sequence, hydraulic lockout positions, and what the warning lights mean. You need this information even if you have been running loaders for twenty years. The indicator light descriptions on page 41 include amber warning symbols that look the same but mean different things. The manual shows them side by side so you don’t confuse a hydraulic filter restriction with a charge pressure drop.

The driving section (page 53) explains all-wheel steer mode switching and the correct foot pedal sequencing for changing direction. Working with pallet forks starts on page 94 and includes load center and stability warnings that most operators ignore until they tip over. This is the kind of detail that keeps a beginner out of the ditch and a pro from wasting time looking for a function that does not exist on earlier models.

Troubleshooting Engine Trouble – Page 100

Every loader has a bad day. The troubleshooting section on page 100 lists engine trouble symptoms and the factory-ordered checks. Not a list of guesses – each symptom has a specific component to inspect and a reference to the maintenance section. For example, “Engine will not crank” sends you to battery voltage and starter circuit checks with the actual resistance values. No aftermarket manual I have seen includes the same diagnostic flowchart. If you rely on a generic diesel troubleshooting chart, you will replace a fuel pump that was fine because you skipped the check for air in the fuel lines. That page alone is worth the price of the document.

Maintenance Schedules and Torque Specs

Maintenance starts on page 102 with the fuel system, engine lubrication, cooling system, air filter, and V-belt. The manual gives you the OEM intervals, not a one-size-fits-all recommendation. For a machine running in Texas dust, the air filter service interval is shorter than the book says, but the manual tells you the restriction indicator reading that triggers it. The torque values for engine components are scattered through the maintenance section – you will not find them listed in a separate table because the factory expects you to look up each procedure. The V-belt tension adjustment procedure on page [DATA NEEDED] gives a deflection spec in inches, not a “feel” measurement. If you want the exact figure, access the file and search for “V-belt” – the searchable PDF makes it faster than flipping paper.

Engine lubrication system on page 104 lists the required oil viscosity by ambient temperature range. That matters for a loader that works outside year-round. The cooling system section on page 106 gives the pressure cap rating and the coolant mixture ratio by percentage, not by “to the full mark.”

Source Authenticity: OEM vs Aftermarket – What You Are Getting

This is an original OEM publication printed by GEHL in August 2007, form number 918121 revision C. The warranty statement on page 2 is the actual legal document that came with the machine. Aftermarket publishers crop that out because it takes space. I have personally evaluated a dozen aftermarket manuals for compact loaders and every single one has at least one incorrect wire color or torque value. One aftermarket manual I saw listed the fuel injection pump timing advance as 12 degrees BTDC when the real factory spec is 8 degrees. That kind of error can cause detonation and piston damage. When you buy this manual from AutoRepairManuals, you get a scanned copy of the original factory print, not a re-typed copy with typos. The serial number plate locations are on page 13 – your machine’s specific number is the only thing that guarantees the manual matches your unit. Related products: GEHL 680 Parts Catalog, GEHL 680 2005 Service Manual – Factory OEM Specs for Wheel Loader, and GEHL RS10-44 2009 Operators Manual – Factory Specs & Procedures. For reference on general loader operation principles, see Manual Transmission and Manual Transmission.

Who Needs This Manual

If you are a home garage enthusiast who bought a used 680 at auction and want to change the oil without guessing the filter part number, this book is for you. If you are a professional mechanic who bills by the hour and refuses to waste time flipping through three different sources to find the correct hydraulic pressure setting, this is your paper. The language is technical but readable – the factory assumes you can read a torque wrench. Beginners should read the safety section twice before starting the engine. I still go back to the operating procedures whenever I run a machine I have not touched in six months.

Does the manual include wiring diagrams?

No. This is an operator’s manual, not a service manual. It covers daily operation, basic maintenance, and troubleshooting symptoms. Wiring diagrams are not in this document. For electrical repair you need the service manual referenced above.

Will this manual work for a GEHL 680 with a serial number starting after 343010001?

The manual covers serial number 343010001 and up. Gehl did not change the model design or operating procedures for later builds within the same production run. However, if your machine has a different serial number prefix (e.g., 343020001), the manual still applies because the machine architecture remained identical. The manual specifically states “Beginning Serial Number: 343010001” – that is the start of the range, not the only unit covered. If you have a 680 built in 2008, the manual is the same edition. If you have a 2005 model, you need the earlier manual linked above.

Access the Factory Manual from AutoRepairManuals. Get the exact original PDF, 154 pages, fully searchable, with no watermarks or missing pages. Your 680 loader deserves the documentation that Gehl signed off on – not a photocopy of a photocopy.