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Part of the John Deere Repair Manuals.
This is the factory repair manual TM406619 for the John Deere 6090MC, 6100MC, 6110MC and the RC cab variants 6090RC, 6100RC, 6110RC, built roughly 2014 to 2017. It covers teardown and reassembly, not guesswork: pulling the 4.5 L PowerTech engine (66/74/81 kW at rated speed per 97/68/EC, p.65), splitting the tractor for PowrQuad work, MFWD and final drives, hydrostatic steering, the brake valve and rear brakes, charge pump and SCVs, plus cab, air conditioning and the suspended front axle. Every job comes with the removal and installation steps and the special tools list. If you fix these tractors instead of just servicing them, this is the book you keep on the bench.
What's Inside This John Deere 6090MC–6110RC Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 8-62 | Safety Measures, Signal Words, Operating Procedures, Maintenance Safety |
| General | 63-115 | Specifications, Tests and Adjustments, Predelivery Inspection |
| Engine | 116-183 | Removal and Installation of Components, Fuel System, Air Intake, Cooling, Exhaust |
| Electrical System | 184-259 | Connectors, Charging Circuit, Starter Circuit, Headlights, Electronic Control Units |
| Drive Systems | 260-563 | Drive Train, U.J. Shafts, Torsion Dampers, MFWD, Differential, Final Drives |
| PowrQuad Transmission | 564-884 | Removal and Installation, Shift Control, PowrQuad Module, Creeper, Range Transmission |
| Steering and Brakes | 885-948 | Hydrostatic Steering, Brake Valve, Rear Brakes, Hydraulic Trailer Brake, Park Brake |
| Hydraulic System | 949-1036 | Oil Filter, Charge Pump, Priority Control Blocks, Rear Hitch, SCVs, ICVs |
| Machine-Specific Systems | 1037-1197 | Main Frame, Fenders, Wheels, Trailer Hitch, Swinging Drawbar, Pick-Up Hitch |
| Suspension Systems | 1198-1265 | Suspended Front-Wheel Drive Axle |
| Operator's Cab | 1266-1433 | Controls and Instruments, Air-Conditioning, Seats |
| Special Tools | 1434-1434 | General Information |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine power at rated speed (97/68/EC) | 66 kW (90 hp) (6090MC) / 74 kW (100 hp) (6100MC) / 81 kW (110 hp) (6110MC) | p. 65 |
| Maximum torque at 1500 rpm | 406 N-m (6090MC) / 452 N-m (6100MC) / 480 N-m (6110MC) | p. 65 |
| Displacement | 4.5 L (276 in.3) | p. 65 |
| Bore x stroke | 106.5 mm x 127.0 mm (4.19 in. x 5.0 in.) | p. 65 |
| No. of cylinders | 4 | p. 65 |
| Compression ratio | 19:1 | p. 65 |
| Unbraked trailer top speed | 25 km/h (15.5 mph) | p. 17 |
John Deere 6090MC–6110RC Common Problems This Manual Covers
Tractor stuck in neutral or shifts hard between ranges.
Owners report seized speed-shift linkage or a misadjusted interlock cable on these models. The PowrQuad Transmission section covers the shift control and linkage teardown; the General section's tests and adjustments cover setting it right afterward.
Manual Section: PowrQuad Transmission p. 587Hydraulics slow, weak, or the hitch drops under load.
Rule out low fluid and a clogged filter, then test the charge pump and priority control blocks. The Hydraulic System section gives the full teardown path through the pump, rear hitch, SCVs and ICVs.
Manual Section: Hydraulic System p. 950Electrical gremlins: no crank, dead gauges, intermittent lights.
These tractors are known for corroded grounds and chafed harness runs. The Electrical System section maps the connectors, charging circuit, starter circuit and electronic control units so you trace the fault instead of shotgunning parts.
Manual Section: Electrical System p. 248Frequently Asked Questions
Does this manual cover splitting the tractor to get at the PowrQuad transmission?
Yes. The PowrQuad Transmission section walks through removal and installation, the shift control, the PowrQuad module itself, the creeper and the range transmission. That's the job most owners buy this book for, because you do not want to split a 6110MC on memory and hope. p. 2
My transmission runs hot or throws a temperature warning. Will this manual help?
Partly, and it is worth knowing which half. This is the repair book, so it gives you the wrench work: dropping the transmission oil cooler hoses, the charge pump and hydraulic pump, the filter and oil reservoir, and internal PowrQuad work once a worn component or a leak turns out to be the cause. What it does not carry is the temperature-warning diagnosis itself; reading the code behind that warning belongs to the companion Diagnosis and Tests manual, TM406519. Confirm the cause there, then come back here for the repair. p. 570
Does it include fault code lists and how to reset them?
No, and it's better you know that up front. This is the repair manual (TM406619). Diagnostic trouble codes, code meanings and reset procedures live in the separate Diagnostic and Tests manual (TM406519), which is not part of this file. This book is for the wrench work once you know what's broken.
Which models and engines exactly does it apply to?
The 6090MC, 6100MC, 6110MC and their RC siblings 6090RC, 6100RC, 6110RC. All run the 4.5 L (276 cu in) four cylinder, 106.5 mm bore by 127.0 mm stroke, rated 66/74/81 kW (90/100/110 hp) depending on model, with peak torque of 406/452/480 N-m at 1500 rpm. Those figures are straight off page 65 of the manual. p. 65
Is the hydraulic system covered deep enough to rebuild, not just service?
Yes. The Hydraulic System section goes from the oil filter and charge pump through the priority control blocks, rear hitch, SCVs and ICVs. If your hydraulics have gone slow or weak under load, this is where you chase a worn pump or internal leak after ruling out low fluid and a plugged filter. p. 948
