Description

GEHL MIX-ALL 100 Operators Manual – Factory Documentation for Your Mixer

If you’re working on a GEHL MIX-ALL 100 Operators Manual, you need the real thing. I’ve been turning wrenches long enough to know that guessing on a mixer will cost you a gearbox or a hydraulic pump. This 68-page factory manual is what GEHL prints for their own dealers – not some aftermarket reprint with faded photos. You get the original torque values, the exact adjustment steps, and the safety warnings that keep you from losing a hand to the auger.

Specifications and Setup: What’s Inside the GEHL MIX-ALL 100 Manual

Page 3 kicks off the table of contents with a full specs chapter – hydraulic capacities, PTO speeds, and tolerances. The manual covers the engine integration, but the focus is on the mixer driveline and controls. Chapter 14 (Set-up & Assembly, page 55) walks you through mounting the mixer to the tractor and checking the driveline angles. If you skip that, you’ll chew up a universal joint inside ten hours.

Does the Troubleshooting Section Cover Common Problems?

Yes. Chapter 13, pages 49-54, lists problems by symptom – slow mixing, unplugging jams, hydraulic drift, and belt slippage. Each problem has a cause-and-remedy table written by GEHL engineers, not some third-party writer. I’ve used this section to chase down a stuck hydraulic valve on a customer’s mixer. The fix was right there: check the relief pressure on page 53. Saved me a phone call to the dealer.

Safety Equipment: Factory-Required Checks

Chapter 4 (Safety, pages 12-13) and Chapter 5 (Control & Safety Equipment, pages 14-17) together cover the decals, the PTO shielding, and the emergency stop procedures. GEHL spells out exactly how to verify the shear bolt torque – it’s not in the hardware chart. Use the numbers on page 15. I’ve seen guys run without the shear bolt guard and lose a leg. Read those pages before you even start the tractor.

3 Key Chapters for Keeping This Mixer Running

1. Operation (Chapter 6, pages 18-28) – Includes the unplugging procedure that most aftermarket manuals leave out. If the auger jams, you need to know the exact hydraulic sequence to clear it without overheating the pump.
2. Adjustments (Chapter 7, pages 29-34) – Covers the conveyor belt tension, the auger-to-mixer clearance, and the PTO clutch pack adjustment. Get those wrong and the mixer won’t feed evenly.
3. Service (Chapter 9, pages 38-46) – Hydraulic filter changes, gearbox oil level checks, and belt replacement specs. Page 42 gives the gearbox fill capacity – 6 quarts of 80W-90. Don’t guess.

Read the Lubrication Chapter Before You Start

Chapter 8 (pages 35-37) is not a suggestion. It lists every grease fitting, the interval in hours, and the type of lubricant. GEHL specifies a lithium-complex grease with NLGI #2 consistency. Using the wrong grease can plug the zerk fittings and starve the bearing. I’ve had to replace a mixer auger bearing because the previous owner used chassis grease. Follow the chart on page 36.

Torque specs for standard hardware are on the inside back cover – ¼-inch bolts at 8 ft-lb, ⅜-inch at 35 ft-lb, up to 1-inch bolts at 150 ft-lb. Those numbers are for SAE grade 5. If you’re using grade 8, multiply by 1.3. That’s not in the manual, but it’s in the hardware appendix. You can look up grade 8 torque at Manual Transmission – though that’s for driveline work, not the mixer.

If you need a manual for another GEHL machine, check the related manuals: GEHL RS10-44 2009 Operators Manual – Factory Specs & Procedures covers a skid steer, but the torque tables are identical. For a larger loader, GEHL RS10-44, RS10-55, RS12-42 2011 Operators Manual – Factory Specs has the same structure. And the GEHL 5635, 6635 1998 Operators Manual | Factory Specs is for a tractor attachment – the hydraulic troubleshooting is cross-compatible.

For reference on how a manual transmission works in older ag machinery, Manual Transmission is a general resource, but the factory manual for the MIX-ALL 100 is what you need for actual repair.

Who Needs This Manual

Home garage enthusiasts who own a GEHL MIX-ALL 100 and want to keep it running without paying a dealer $150/hour. Beginners who have never adjusted a PTO-driven mixer – this manual holds your hand through the steps. Experienced mechanics who want the actual GEHL torque values instead of a generic table. This is the same 68-page document that came with the machine when it was new. No added fluff, just the factory data.

Why Factory OEM Beats Aftermarket

I’ve seen aftermarket manuals that claim to cover the MIX-ALL 100 but leave out the inside back cover torque chart, the safety decal locations (chapter 16, pages 59-61), and the optional features chapter. GEHL printed this manual for their own technicians. Every spec matches the serial number range. You won’t find a generic “tighten to spec” line – you’ll find the exact foot‑pounds.

Is this manual the same as a service manual?

No. This is the Operators Manual, covering operation, adjustments, and routine service.

What if my machine has optional features?

Chapter 15 (pages 55-58) covers optional features and accessories—things like scales, auger extensions, or baggers. GEHL included those procedures because the factory knows how each option affects operation and torque specs. If you’re buying a used mixer, check those pages to see what’s installed.

Stop pulling numbers from memory. Access the Factory Manual and have the real specs on your tablet or printed out. One stripped bolt is more expensive than this manual.