Operating a Fiat Trattori 110-90 or 110-90 DT requires knowing the exact factory maintenance intervals and fluid capacities. This 103-page PDF guide (OEM #06910280) details every control and service procedure for your tractor. It covers PTO clutch engagement, hydraulic lift controls, and remote valve operation, along with wiring diagrams for the base model and all three cab versions (Comfort, SuperComfort, and air-conditioned SuperComfort). The manual includes a complete maintenance schedule, greasing points, brake bleeding steps, and fluid capacities like the 16 L cooling system. Learn how to set the master clutch pedal free travel to 3.5 mm and verify the lower link stroke at 720 mm at rod position B. Bookmarked and fully searchable, this digital file lets you find the right spec directly on your tablet.
What's Inside This Fiat Trattori 110-90, 110-90 DT Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Controls and Instruments | 17-21 | Master Clutch Lever, Parking Brake Lever, Throttle Lever, Differential Lock Pedal, Accelerator Pedal, Brake Pedals, Steering Adjustment Knob or Lever, Instrument Panel |
| Operation | 22-50 | Starting and Stopping, Transmission and Splitter, Power Take-Off, Hydraulic Lift, Remote Control Valves, Quick-Connect Implement Attachment |
| Maintenance | 51-57 | Adjustments, Fluid Change, Filter Change, Fuel System Bleeding, Brake System Bleeding, Cooling System |
| Electrical System | 58-60 | Battery, Starting Engine with Fiat Battery or Without Battery, Charging System, Wiring Diagram, Fuses, Headlamp Alignement |
| Specifications | 61-67 | Engine Type, Fuel System, Power Train, Transmission, Wheels and Tires, Electrical System |
| 110-90 Dt Four-Wheel Drive Version and Specifications | 68-71 | Live Front Axle, Weight Ratings - Standard Tires, Front Wheels, Track Widths, Steering, Turning Radius, Front Wheel Drive Operation, Four Wheel Drive Control |
| Speed Version | 72 | Speeds, At Full Load Engine RPM, Transmission and Creeper Lever Positions (Low Range, Normal Range, High Range, Reverse) |
| No-Spin Version | 73-75 | Description and Key Functions (Permits: Full Use of Tractor Pull, Smaller Turning Circles) |
| Heated and Ventilated Comfort Cab Version | 76-81 | Doors, Back Light, Side Windows, Windshield Washer, Windshield Wiper, Cab Interior Lamp, Sun Blind, Ventilation |
| Heated and Ventilated SuperComfort Cab Version | 82-89 | Doors, Back Light, Windshield Washer, Sun Blind, Windshield Wipers, Side Windows, Ashtray, Cab Interior Light |
| Air Conditioned Supercomfort Cab | 90-101 | Controls, Operation, Wiring Diagram, Periodical Inspections, Maintenance, Specifications |
| Supplement to the Operator's Manual for Models: 110-90 and 110-90 Dt | 102-103 | Running-In, Flexible Maintenance, Air Cleaner, Coolant Expansion Tank, Fuel Filter, Steering Fluid Reservoir, Windshield Washer Reservoir, Dry Air Cleaner |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Master clutch pedal free travel | 170 mm or 6 3/4 in | p. 51 |
| Parking brake grip free travel | 3 clicks | p. 51 |
| Live front axle final drives type | Planetary | p. 68 |
| Maximum lower link stroke (lifting rods at B) | 720 mm or 28 in | p. 34 |
| Maximum lower link stroke (lifting rods at C) | 645 mm or 25 in | p. 34 |
| Hydraulic pump output pressure | 185 bar (190 kg/cm² or 2,698 psi) | p. 64 |
| Engine valves. Clearance (Inlet) | 0.25 mm | p. 49 |
| Engine valves. Clearance (Exhaust) | 0.35 mm | p. 49 |
| Fuel injectors. Release pressure | 230 to 238 bar | p. 49 |
| Battery Capacity | 132 Ah | p. 56 |
| No. of cylinders | 6 | p. 60 |
| Displacement | 5861 cc | p. 60 |
Fiat Trattori 110-90, 110-90 DT Common Problems This Manual Covers
Clutch pedal feels spongy, grabs at the floor, or slips under heavy drawbar load p. 51
Measure clutch pedal free travel at the pad. The correct specification is 3.5 mm (0.138 in) as shown on page 51. Adjust the linkage rod if the travel falls short. Also, verify the parking brake releases fully when moving, as a dragging brake often masks clutch feel. Avoid operating under load until free travel meets the spec.
Manual Section: MaintenanceHydraulic lift raises slowly, implement drops under load, or top link won't hold position p. 34
Confirm the hydraulic oil is clean and at the proper level. Check that the lift control lever and sensitivity adjustment match the implement weight (covered in the Operation section starting on page 22). Maximum rated lift capacity at the lower links is 4,505 kg (9,931 lb) with rods in position C on page 34. Inspect the oil filter condition first if capacity seems low.
Manual Section: OperationFront wheel locks up or steering goes heavy when driving on hard ground with four-wheel drive engaged p. 68
Turn off front wheel drive immediately on roads and firm surfaces. Four-wheel drive is intended for soft terrain only. Page 68 outlines the correct operation procedure. Continuous use on hard ground overloads the planetary final drives in the wheel hubs. Keep in mind the turning radius with front drive disengaged is 5.7 m (page 67) when maneuvering in tight yards.
Manual Section: 110-90 DT Four-Wheel Drive Version and SpecificationsEngine cranks slowly or fails to fire on cold mornings despite repeated attempts p. 56
Inspect the battery condition and terminal connections. The rated capacity is 132 Ah (page 56). Clean any corrosion and verify the electrolyte level sits within the marked band on each cell. Let the glow plug preheat cycle finish completely before cranking. If the battery takes a charge but cranking remains slow, check the starter connections using the electrical system wiring diagram on page 58.
Manual Section: Electrical SystemBrakes grab unevenly, one wheel locks first, or tractor pulls to one side when stopping p. 51
Test both brake pedals for equal free travel, then confirm the coupling catch linking them is fully engaged before road use (page 51). Adjust each pedal independently to match the feel. The parking brake grip should reach its set position within 3 clicks. If one side still grabs harder, air in the hydraulic line is likely the culprit. Follow the bleeding procedure in the Maintenance section.
Manual Section: MaintenanceFuel spills repeatedly during refilling from containers or takes too long to fill the tank p. 17
Use a narrow-spout funnel or hand pump to control flow rate through the filler opening. Monitor the fuel gauge on the instrument panel (page 17) instead of filling by sight to avoid overfilling. Fill the tank at the end of each day to reduce condensation buildup overnight. Keep the filler cap seal clean and check it seats correctly; a damaged seal admits dirt directly to the fuel system.
Manual Section: Controls and InstrumentsFrequently Asked Questions
What is the torque spec for Fiat 110-90 wheel bolts?
For the front track, the wheel nuts should be torqued to 294 N-m, which is equivalent to 30 kgm or 216 ft.lb. After initial adjustment, it is recommended to check the tightening torque of the nuts after approximately 8 to 10 hours of operation, and then at regular intervals according to the tractor's operating conditions.
What are the replacement specifications for clutch cover?
The clutch type for the Fiat 110-90 tractor is a dry, twin-plate, 12-inch system. While specific replacement procedures or part numbers for the clutch cover are not detailed, this specification indicates the type and size of the clutch assembly.
What do I get after purchasing this Fiat Trattori 110-90, 110-90 DT manual?
Instant PDF download. You get the full 103-page searchable Operator Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Is this Fiat Trattori 110-90, 110-90 DT Operator Manual printable?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Can I find wiring schematics in this Fiat Trattori 110-90, 110-90 DT manual?
Included. The Fiat Trattori 110-90, 110-90 DT Operator Manual covers complete wiring harness diagrams, electrical circuits, and connector pinouts.
Document Quality
This document is a scanned PDF, and you can search the full text and copy content due to an underlying OCR layer. The text is generally clear and readable, though it exhibits the slight blur and occasional unevenness typical of a scanned physical manual. Diagrams and illustrations are raster images, not vector, but their labels are mostly legible, allowing for identification of parts and controls. Page condition is fair; some pages show minor scan artifacts, slight skewing, and occasional faint marks from the original document. The document includes a few blank pages, primarily at the end and occasionally between sections, which serve as filler or section breaks.
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