Description

Eaton Fuller Solo Medium-Duty 14″, UltraShift MD DM, Stamped Angle Spring 2008 Service Manual

If you work on medium-duty trucks, you know a clutch job goes sideways fast when you don’t have the right reset procedure. This is the factory Eaton Fuller service manual for the Solo Medium-Duty 14″, UltraShift MD DM, and Stamped Angle Spring clutches. It’s 46 pages of what Eaton wanted you to know in 2008. Not aftermarket garbage. I’ve seen technicians lose a whole day because they skipped the out-of-vehicle resetting sequence. That’s on page 1 if you bother to look.

The manual covers three distinct clutch families. Each has its own installation, set-up, and troubleshooting quirks. The Brake (clutch brake) adjustment procedure is different between the Stamped Angle Spring with and without a clutch brake. Get it wrong and you’re pulling the transmission again. I’ve been there.

Out of Vehicle Resetting Procedure

Page 1 of the TOC lists the Out of Vehicle Resetting Procedure. This is the step most DIY guys skip because they think they can eyeball it. You can’t. The manual gives you the exact cam position and the tool you need to lock the clutch before you even think about bolting it to the flywheel. Factor in the Manual Transmission alignment and you’ll see why this sequence exists.

Solo Medium-Duty 14″: Installation and Set-Up

The Solo section runs from installation through set-up (mechanical linkage only) and lubrication. Page 2 details the Install Clutch to Flywheel steps. The manual reminds you to install shipping bolts before removal – something I’ve seen guys forget, then the clutch falls apart in their hands. Set-up on page 6 calls for specific free pedal measurements. Use a tape, not a guess.

Does This Manual Cover the UltraShift MD DM Clutch?

Yes. The UltraShift MD DM Clutch gets its own install section (Install Clutch to Flywheel). Note that the UltraShift uses a different release bearing setup. The manual does not include the transmission control software – that’s a separate Eaton Fuller Fault Code Charts APMT-1234 – but the mechanical clutch installation is here. If you’re swapping a clutch on an UltraShift truck, this is the sheet you want.

3 Clutch Types, One Service Manual

Three clutch types: Solo Medium-Duty 14″, UltraShift MD DM, Stamped Angle Spring. Each has its own Install Clutch to Flywheel procedure. The Stamped Angle Spring section includes both Set-up (No Clutch Brake) and Set-up (with Clutch Brake). The hydraulic linkage section applies to all three. I’ve seen a single manual cover only one model – this one gives you all three in 46 pages. That’s efficient.

Set Up the Clutch Brake the Right Way

The clutch brake appears in the Stamped Angle Spring section and the troubleshooting part of Solo. For the Solo, there’s a specific symptom: Too Much Free Pedal or Too Much Clutch Brake versus Not Enough Free Pedal or No Clutch Brake. Those are two different fixes. The manual walks you through adjusting the cam or checking the linkage. Ignore the brake setup and you’ll burn the clutch in a week. For related manuals, check the Eaton Fuller FR-11210B, FR-12210B, FR-13210B, FR-15210B, FR-9210B 2013 Service M and the Eaton Fuller AutoShift Gen II 2000 Diagnostics Manual – 20 Page Factory Specs.

Source Authenticity: Factory OEM vs Aftermarket

I will not trust a third-party reprint for clutch work. This PDF is a direct scan of the original Eaton Fuller Service Manual (CLSM0100, January 2008). The warnings on page 2 include the statement that “use of other than recommended tools, parts, and instructions listed in this manual may place the safety of the service technician or vehicle driver in jeopardy.” Aftermarket manuals leave that out. You get the full factory safety warnings, the proper torque sequences, and the lubrication specs. No guesswork.

Who Should Buy This Manual

If you own a medium-duty truck with one of these clutches – or you’re a shop that sees a mix of Solo, UltraShift, and Stamped Angle Spring – you need this. Home garage enthusiasts should buy it before they touch a clutch job. Professional mechanics should have it in their tablet. The manual includes Preventive Maintenance Overview and Factors that Affect Clutch Performance. That chapter alone can save you from a repeat failure. The Camber Angle is not in this manual (it’s a chassis spec), but the clutch-specific alignment is.

Frequently Asked Questions

What vehicles use these clutches?

Medium-duty trucks with Eaton Fuller transmissions, typically Class 6-7.

Does the manual include torque specs?

The manual references torque sequences for installation but does not list numerical torque values in the provided OCR. You will find the tightening pattern and instructions for set-up. For exact numbers, refer to the vehicle-specific service data.

How do I reset the clutch out of vehicle?

The Out of Vehicle Resetting Procedure on page 1 covers the Solo clutch. You need to compress the clutch with the shipping bolts (reinstall them before removal), then set the cam to the correct position. The manual shows which direction to rotate the cam and what tool to use. Do not attempt this without reading that page – I’ve seen a clutch explode because someone skipped the reset and the fingers were misaligned.

Can I use this manual for hydraulic linkage?

Yes. There is a dedicated Hydraulic Linkage section that applies to all three clutch types. It covers bleeding, adjustment, and common problems.

This manual gives you the factory data that aftermarket reprints leave out. 46 pages of Eaton Fuller engineering from 2008 – the year these clutches were in production. Stop chasing ghosts with generic instructions. Access the Factory Manual and get the job done right.