The hydraulic lift, with its draft control and lower link geometry, is the system most likely to send you hunting for this 65 page Fiat 55-85, 60-85 operator manual PDF, factory document 603.64.259.00 for both crawler tractor models. A full wiring diagram traces every circuit from battery, alternator, and starter motor through to the stop solenoid and gauge board. The operation chapter, the longest in the book, works through starting, steering clutches, PTO engagement, ballasting, and implement attachment, with separate specification pages for the 16-speed, reverser, mountain, vineyard, and orchard versions. The lift relief valve opens at 186 bar (2,702 psi); hold lower link loads under 3535 kg at the swivel bushings and service the track rollers every 50 hours. A guessed relief pressure cooks a pump. Download the text-searchable, bookmarked file, print the pages your job needs, and let them get greasy at the bench before the weather turns.
What's Inside This Fiat 55-85, 60-85 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Service | 6-7 | Dealers, Repair Work, Overhaul Work, Skilled Servicemen |
| Panelling and Cab Maintenance | 8 | Weathering Protection |
| Identification Data | 9 | Frame Data, Engine Type, Serial Number, Identification Plate |
| Safety Precautions | 10-16 | Asbestos-Base Materials, PTO Shaft, Roll-Over Protection Frame, Start Inhibitor Switch, Hydraulic Systems |
| Controls and Instruments | 17-21 | Instrument Panel, Control Board, Transmission and Splitter |
| Operation | 22-39 | Starting and Stopping, Master Clutch and Steering Clutches, Seat Adjustment, Ballasting, Power Take-Off, Hydraulic Lift, Guide to Lift Operation, Implement Attachment |
| Maintenance | 40-45 | Maintenance Schedule, Cooling System, Fuel System Bleeding |
| Electrical System | 46-48 | Battery, Fuses, Headlamp Alignment |
| Specifications | 49-53 | Engine, Fuel System, Timing, Lubrication, Cooling System, Transmission |
| Speed Version | 54 | |
| Reverser Version | 55 | |
| Mountain Versions | 56 | Weights |
| Vineyard Version | 57 | Specifications, Weights |
| Orchard Version | 58 | Specifications, Dimensions, Weights, Tracks |
| Optional Variants and Accessories | 59 | Ballast Weights |
| Tractor Storage | 60-63 | Fuel Injection Pump, Engine Oil, Air Cleaner Cartridge, Cooling System, Battery, Paintwork |
| Electrical Wiring Diagram | 64-65 | Head-Lamps, Battery, Alternator, Starter Motor, Engine Stop Solenoid, Gauge Board |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Nut D tightening torque | 162 Nm - 16.5 kgm or 110 ft.lb | p. 27 |
| Maximum lift capacity at lower link swivel bushings | 3535 kg or 7795 lb | p. 33 |
| Maximum lift capacity at center of gravity 610 mm or 24 1/2 in from lower link swivel bushings | 1935 kg or 4267 lb | p. 33 |
| Track roller and wheel maintenance interval | 50 hours | p. 40 |
| Engine oil change interval | 200 hours | p. 41 |
| Tractor ballasting weight | 90 kg | p. 25 |
| Splined extension nut tightening torque | 162 Nm | p. 27 |
| Valve clearance (intake) | 0.30 ± 0.05 mm | p. 50 |
| Valve clearance (exhaust) | 0.30 ± 0.05 mm | p. 50 |
| CAV pump release pressure | 260 to 268 bar | p. 51 |
| 55-85 | ||
| Operating weight (55-85) | 2970 kg | p. 49 |
| 60-85V | ||
| Operating weight (60-85V) | 2860 kg | p. 49 |
Fiat 55-85, 60-85 Common Problems This Manual Covers
Fiat 55-85 crawler cranks slowly or just clicks, dash lights dim when key is turned
The tractor has a 90/100 Ah sealed, maintenance-free battery; check its state of charge with a digital voltmeter: 12.60 V is full, 12.40 V three-quarters and 12.20 V half (page 46). When starting from an auxiliary battery, connect terminals of the same sign and use an appropriate 12 V battery (page 46). Before replacing a blown fuse, always trace and rectify the fault; the protected circuits are listed on page 47.
Manual Section: Electrical System p. 46Engine hard to start in cold weather, long cranking and white smoke at first light
After extended inactivity or when starting in cold climates, prime the fuel pump through twenty strokes and run the engine for 5 to 10 seconds with the injection pump in the stop position. Then disengage the clutch lever to deactivate the starter inhibitor switch, move the throttle lever to mid stroke and turn the starter key to position 2, releasing it as soon as the engine fires (page 22).
Manual Section: Engine Starting and Stopping p. 22Tractor won't make a tight turn, steering lever pulls long before the track slows
Turn steering lever A to the right to release the R.H. steering clutch or to the left for the L.H. one: for wide turns pull the steering clutch lever only, and for tight turns pull the lever first and then gradually depress the brake pedal, operating both gently. Do not use the brakes when the tractor is under pull (page 24). The transmission oil gear pump relief valve is set at 30 bar (30.6 kg/cm² or 435 psi) (page 52).
Manual Section: Steering Clutches and Brakes p. 24Three-point hitch lifts slowly or drops a mounted implement during headland turns
Check the draft or position control setting for the implement in the guide to lift operation (page 31). Maximum lift capacity with the lower links horizontal is 3535 kg or 7795 lb at the lower link swivel bushings and 1935 kg or 4267 lb at 610 mm from them (page 33). The hydraulic pump delivers 34.5 dm³/min (8.4 gpm) and the lift relief valve is set at 186 bar (190 kg/cm² or 2,702 psi) (page 52).
Manual Section: Hydraulic Lift p. 33Squealing and packed mud around the track rollers after working wet ground
The servicing schedule on page 40 lists the track rollers and wheels among the lubrication operations after every 50 hours of work, together with the fuel filter, master clutch throw-out sleeve and brakes. Track carrier rollers, track frame rollers and idler wheels are serviced again at the 400-hour level (page 41), and the rollers and idlers are long-life lubricated with a hydraulically adjustable coil-spring track release (page 52).
Manual Section: Maintenance p. 40Frequently Asked Questions
How often should the oil be changed on the Fiat 55-85 and 60-85 crawler tractors?
The manual specifies that a tractor oil change should be performed every 200 hours of operation. This interval is equivalent to a truck oil change every 8,000-9,000 km (5000-5500 mi). p. 7
What is the tightening torque for the PTO splined extension nuts on the Fiat 55-85 and 60-85 crawler tractors?
The splined extensions for the PTO should be fastened to the shaft using nuts D, which require a tightening torque of 162 Nm (16.5 kgm or 110 ft.lb). p. 27
What is the valve clearance on the Fiat 55-85 and 60-85 crawler tractors?
The normal valve clearance for both intake and exhaust valves, whether hot or cold, is 0.30 ± 0.05 mm (.012 ± .005 in). p. 50
How do I bleed the fuel system on the CAV pump engine of the Fiat 55-85 and 60-85 crawler tractors?
To bleed the CAV pump, back off plug A two turns and pump lever B until fuel flows without air bubbles, then retighten. Next, back off screw C and the screw inside hexagon D two turns, crank the engine until fuel flows free of air, and retighten the screw inside hexagon D. p. 44
What is the maximum hydraulic lift capacity of the Fiat 55-85 and 60-85 crawler tractors?
The maximum lift capacity at the lower link swivel bushings is 3535 kg (7795 lb). At the center of gravity 610 mm (24 1/2 in) from the lower link swivel bushings, the capacity is 1935 kg (4267 lb). p. 33
Do I get instant access to this Fiat 55-85 Operator Manual?
All 65 pages arrive as one searchable PDF at checkout. Read it at the desk, then take the phone out to the machine.
Can I print pages of this Fiat 55-85 manual for my own shop?
Yes. It prints from any PDF reader, so run off the pages you need for your own repair work.
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