Part of the John Deere Repair Manuals.
A worklight circuit that dies at dusk, or a starter that clicks once in a cold shed: that hunt ends with the John Deere 2155 to 3255 Operation and Tests supplement PDF, 231 pages (TM4436SUPPL) covering nine tractor models from the 2155 through the 3255. Wiring diagrams fill the bulk of this book, drawn separately for tractors with and without SGB and split at the serial number breaks, so the engine, dash, transmission and fender harnesses on the page match the ones in your hand. Circuit diagnosis groups take the starting motor, charging, cold weather starting aids, fuel preheater and front PTO circuits from symptom to test point. Charge the R134a system to 1.8 kg; expect 3 ohms across the compressor clutch coil and 2.5 amps draw. One invented pressure figure costs you a compressor. Bookmarks and a searchable text layer land you on the right circuit group in a minute, not an evening while the field waits.
What's Inside This John Deere 2155 to 3255 Tractors Manual
| System | Pages | Key Topics |
|---|---|---|
| Notice to Dealers | 2 | Technical Manual Revision, Tractor Models, Revised Groups, Additional Group |
| Electrical Diagrams W/O SGB | 5-30 | Parts Designations, Wiring Harness Designations, Electrical Circuit Diagrams, Instrument Cluster |
| Circuit Diagnosis W/O SGB | 31-60 | Starting Motor Circuit, Charging Circuit, Cold Weather Starting Aids, Fuel Preheater, Lighting and Worklights |
| Electrical Diagrams GPT W/O SGB | 61-84 | Parts Designations, Wiring Harness Designations, Electrical Circuit Diagrams, Instrument Cluster |
| Circuit Diagnosis GPT W/O SGB | 85-126 | Starting Motor Circuit, Charging Circuit, Cold Weather Starting Aids, Lighting and Worklights, Front Wheel Drive |
| Electrical Diagrams with SGB | 127-158 | Parts Designations, Wiring Harness Designations, Electrical Circuit Diagrams, Dash Panel Wiring |
| Circuit Diagnosis with SGB | 159-198 | Starting Motor Circuit, Charging Circuit, Cold Weather Starting Aids, Fuel Preheater, Blower Fan, Air Conditioning |
| Operator Station | 199-231 | Air Conditioning System R134a |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Compressor clutch coil resistance | 3 ohms | p. 211 |
| Compressor clutch coil current draw | 2.5 amps | p. 211 |
| Refrigerant R134a Capacity | 1.8 kg | p. 211 |
| Compressor Suction Pressure (800-2000 rpm) | 700 to 2100 kPa | p. 211 |
| Compressor Discharge Pressure (800-2000 rpm) | 7 to 240 kPa | p. 211 |
| Compressor Relief Valve Opening Pressure | 3000 kPa | p. 211 |
| Full Charge of Oil (PAG oil) | 312 cm³ | p. 211 |
| Temperature Control Switch Low Limit | -1°C | p. 211 |
| Temperature Control Switch High Limit | +3°C | p. 211 |
John Deere 2155 to 3255 Tractors Common Problems This Manual Covers
John Deere 2355 cranks slowly or only clicks on a cold morning, engine will not fire
Start at the battery posts and ground straps before condemning the starter. Clean every cable end to bright metal and confirm full 12 V reaches the starter terminal while cranking. Then work the starting motor circuit diagnosis beginning on page 31, tracing the harness back to the key switch with the wiring diagram on page 13.
Manual Section: Circuit Diagnosis W/O SGB p. 31Battery goes flat overnight during planting and the charge indicator flickers on the dash while running
Check belt tension and the alternator ground strap before buying parts, then load test the battery and confirm it holds a full 12 V at rest. Follow the charging circuit diagnosis starting on page 31, and use the instrument cluster wiring on page 15 to rule out a bad indicator lamp circuit before you lose a day of planting.
Manual Section: Starting motor and charging circuit diagnosis (w/o SGB) p. 31Cab air conditioner blows warm during summer haying and the compressor clutch never clicks in
Measure the compressor clutch coil at the connector before anything else. Resistance should read 3 ohms, and current draw at 12 V should sit near 2.5 amps, both listed with the clutch specifications on page 211. If the coil checks good, run the operational checkout on page 212 before opening the refrigerant side.
Manual Section: Air Conditioning System R134a Operational Checkout p. 212Cab cools fine at idle but quits cooling once engine speed comes up in the field
Check compressor suction pressure with a gauge set while you run engine speed from 800 to 2000 rpm. It should stay between 700 and 2100 kPa, the range given on page 211. If it wanders outside that window, work through the system diagnosis on page 213, since moisture and a restricted expansion valve show up here first.
Manual Section: Air Conditioning System R134a System Diagnosis p. 211New compressor installed and the air conditioning still cools weak or the compressor sounds noisy
Drain and measure the oil out of the old compressor before the new one goes on. A new or service exchange compressor takes a full charge of 312 cm³ (11 fl. oz.) of PAG oil, and the system holds 1.8 kg of R134a, both on page 211. Recheck pressures so the system never rides the 3000 kPa relief setting.
Manual Section: Operator Station p. 211Frequently Asked Questions
What is the R134a refrigerant capacity for the air conditioning system on a John Deere 2155 to 3255 Tractor?
The air conditioning system R134a refrigerant capacity is 4 lb (1.8 kg). p. 211
What is the air conditioning compressor relief valve opening pressure on a John Deere 2155 to 3255 Tractor?
The compressor relief valve opens at a pressure of 3000 kPa (30 bar), which is equivalent to 440 psi. p. 211
What is the current draw for the compressor clutch coil?
The current draw for the compressor clutch coil is 2.5 amps at 12 V. p. 211
What is the compressor clutch coil resistance spec on a John Deere 2155 to 3255 tractor?
The resistance for the compressor clutch coil is 3 ohms at 27°C (80°F). p. 211
What is the full charge of oil for the air conditioning compressor?
The full charge of oil for a new or service exchange compressor using PAG-OIL is 312 cm³ (11 fl.oz.). p. 211
Is this John Deere 2155 Technical Manual a digital download?
One searchable PDF covering 231 pages, delivered instantly. No disc, no shipping, no waiting on the post.
Are there any print restrictions on this John Deere 2155 manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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