Part of the Yanmar Repair Manuals.
A shuttle that hesitates on the headland, or an error message flashing on the instrument panel, can cost you a working day when the forecast says rain by Friday. This Yanmar technical manual for the EG907 and EG907HMT tractors (4TNV98T diesel, 05/2008 edition) exists so you can trace the fault instead of guessing.
Across 335 pages you get the periodical inspection schedule with real capacities (39.0 L of transmission oil, 12.0 L of engine oil), rough disassembly procedures, a full chapter on the HMT transmission with hydraulic circuit diagrams, the electric equipment chapter with instrument panel error messages and sensor tester functions, hydraulic control for the three-point hitch, and the cab air conditioner.
Guessing a torque or a pressure is how a wheel comes loose in the field. Download the PDF, print the pages for the job, and take them to the bench; the planting window will not wait for a dealer appointment.
What's Inside This Yanmar EG907, EG907HMT Manual
| System | Pages | Key Topics |
|---|---|---|
| Periodical Inspection | 35-57 | Check Intervals, Oil and Grease, Oil and Water Volume, Replacing Oil, Replacing Respective Elements, Removing Water From Water Separator |
| Rough Disassembly of Components | 58-94 | Engine Bonnet Cover, Fender, Clutch Housing, Transmission Removal, Rear Axle, PTO Module |
| Transmission | 95-181 | Hmt Mechanism, Power Transmission Diagram, Hydraulic Lines Diagram, Hydraulic Circuit Diagram, Damper Disc, HST Proportional Valves, Hmt Clutch Solenoids |
| Electric Equipment | 182-208 | Instrument Panel, Operating Message and Status Display Function, Maintenance Function, Initial Setting, Sensor Tester Function, Error Message Function, Electrical Circuit |
| Universal Flat Operation | 209-230 | Universal Flat Operation Functions, Electric Control Components |
| Hydraulic Control Components | 231-274 | Positions of the Components, Functions and Operations of the Components, Control Outline, Position Control, Auto Rotary Control, Load Control, Depth + Load Control |
| Air Conditioner | 275-329 | the Air Conditioner, Operation and Handling, Supply Openings and Operating Section, Description of the Operating Section, Operating Procedure, How to Use the Air Conditioner, And Precautions |
| Appendixes | 330-335 | Electrical Component Positions, Air Conditioning Lines, Cabin |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel filter element replacement interval | every 300 hours | p. 44 |
| Fuel filter element part code | 123907-55800 | p. 44 |
| Air cleaner element cleaning interval | every 50 hours | p. 47 |
| Air cleaner element replacement interval | every 300 hours or once a year | p. 37 |
| Battery fluid upper limit | Approx. 28 mm | p. 49 |
| Specified battery part code | 198450-51510 | p. 49 |
| Slow blow fuse rating (Starter motor) | 80A | p. 26 |
| Radiator screen cleaning frequency | before and after work each day | p. 47 |
| Radiator cooling water capacity | 7.7 (8.2) L | p. 38 |
| Sub tank cooling water capacity | 1.38 L | p. 38 |
| Transmission oil capacity | 39.0 L | p. 38 |
| Transmission and Hydraulic system oil type | Yanmar TF-500 Transmission fluid or equivalent | p. 38 |
Yanmar EG907, EG907HMT Common Problems This Manual Covers
Hard starting from water in the fuel
Water collecting in the separator and a fuel filter past its 300 hour interval will have the 4TNV98T cranking long before it fires. The manual walks through draining the separator and replacing the filter element as part of the inspection schedule.
Manual Section: Removing Water From Water Separator p. 44Overheating during dusty field work
Chaff and dust load up the radiator screen fast, and the temperature gauge climbs before you smell it. The inspection chapter calls for cleaning the screen before and after each working day, and covers coolant volumes and yearly antifreeze replacement.
Manual Section: Periodical Inspection p. 35HMT hesitates or loses drive
Sluggish or jerky HMT response often traces to the HST proportional valves or clutch solenoids rather than the gear train. The Transmission chapter lays out the HMT mechanism, hydraulic lines and circuit diagrams so you can follow the oil instead of pulling the housing on a hunch.
Manual Section: Transmission p. 95Error messages on the instrument panel
When the panel throws a message mid-job, you need to know whether to park the tractor or finish the pass. This section explains the error message function and what the display is reporting, alongside the sensor tester function for checking individual senders.
Manual Section: Error Message Function p. 198Three-point hitch drops or ignores commands
A hitch that will not hold depth or lets an implement sink is usually a control component fault, not the pump. This chapter covers position control, load control, depth plus load control and electronic draft control, with the location and function of each hydraulic control component.
Manual Section: Hydraulic Control Components p. 231Cab air conditioner blows warm
A cab that will not cool in summer usually comes down to the refrigerant charge or the lines. The Air Conditioner chapter covers operation and handling, and gives the R134a charge specification of 950 g plus or minus 50 g.
Manual Section: Air Conditioner p. 275Intermittent no-start from electrical faults
Corroded battery terminals and loose connections cause no-starts that look like a dead starter. The manual shows how to check the electrical components and includes the electrical circuit for chasing a fault wire by wire.
Manual Section: Checking The Electrical Components p. 206Frequently Asked Questions
Which tractor models does this manual cover?
It covers the Yanmar EG907 (power shuttle version) and EG907HMT, both fitted with the 4TNV98T diesel engine. It is the 05/2008 factory edition, 335 pages, in English.
Does it explain the HMT transmission?
Yes. The Transmission chapter covers the HMT mechanism and construction, the power transmission diagram, hydraulic lines and circuit diagrams, the damper disc, HST proportional valves and HMT clutch solenoids. p. 95
Can I diagnose instrument panel error messages with it?
Yes. The Electric Equipment chapter covers the instrument panel's error message function, sensor tester function, maintenance function and initial settings, plus the electrical circuit and checks for each electrical component. p. 182
Are fluid capacities and oil types listed?
Yes. The Periodical Inspection chapter lists them: 95.0 L fuel tank, 12.0 L engine oil, 39.0 L transmission oil (Yanmar TF-500 or equivalent) and 9.2 L front axle oil (SAE #90 gear oil). p. 38
How is this Yanmar EG907 Technical Manual delivered?
A 335-page Technical Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Am I able to print pages from this manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Can I trace hydraulic lines with this Yanmar EG907 manual?
Yes, this Yanmar EG907, EG907HMT Technical Manual includes a hydraulic system diagram.
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