![John Deere JD646 Repair Manual [Compactor]](https://youfixthis.com/wp-content/uploads/2016/10/2017-04-07_16-08-55-300x300.jpg)
Part of the John Deere Repair Manuals.
This 416-page John Deere GX355 Technical Manual (OEM #TM1974) puts the entire Lawn and Garden Tractor at your disposal, from the K71A hydrostatic transaxle down to the last fender bolt. You get complete wiring schematics for chasing electrical gremlins, a full hydraulic schematic for the lift and steering circuits, and page after page of torque values for both inch and metric fasteners. Theory of operation sections walk you through the power train, steering, and brakes the way a factory trainer would, and the troubleshooting charts narrow down faults before you start pulling parts. Set valve clearance correctly and torque the fastener to the metric spec on page 8, not a guess pulled from a forum thread. Your tractor won't fix itself with generic advice; this gives you John Deere's actual repair procedures, section by section. It's bookmarked for fast navigation, so open it on your phone in the shop and jump straight to the system you're working on.
What's Inside This John Deere GX355 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 3 | Table of Contents, General Diagnostic Information, Specifications, Component Location, System Schematic, Theory of Operation |
| Safety | 4-8 | Recognize Safety Information, Handle Fluids Safely, Servicing Batteries, High-Pressure Fluid Lines, Safe Service Procedures, Avoid Injury From Rotating Blades |
| Specifications and Information | 9-24 | Vehicle Specifications, Inch Fastener Torque Values, Metric Fastener Torque Values, O-Ring Seal Service Recommendations, Diesel Fuel Specifications, Engine Oil |
| Engine | 25-94 | Specifications (Tests and Adjustments Specifications, Repair Specifications, Torque Specifications, Special Tools, Other Materials) |
| Electrical | 95-218 | Reading Electrical Schematics, Component Location, Main Electrical Schematic, Theory of Operation, Tests and Adjustments, Repair |
| Power Train (K71A Hydrostatic) | 219-310 | Hydrostatic Transaxle, Component Location, Theory of Operation, Troubleshooting, Tests and Adjustments, Repair |
| Steering | 311-334 | Specifications, Component Location, Theory of Operation, Troubleshooting, Tests and Adjustments, Repair |
| Brakes | 335-346 | Theory of Operation, Troubleshooting, Diagnosis, Tests and Adjustments, Brake Assembly, Brake Pedal and Linkage |
| Hydraulics | 347-364 | Specifications, Component Location, Hydraulic Schematic, Theory of Operation, Troubleshooting, Repair |
| Attachments | 365-396 | Mower Deck Adjustment Specifications, Mower Deck Repair Specifications, Mower Deck Drive Checks, Mower Deck Levelling, Side-To-Side, Electric PTO Clutch Adjustment, Mower Deck |
| Miscellaneous | 397-408 | Torque Specifications, Front Axle, Steering Spindles, Fender Deck and Tunnel Cover, Fuel Tank |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel Hubs | Straight with Separate 5-Bolt Hubs | p. 12 |
| Fuel Filter | Replaceable, In-line | p. 11 |
| Ignition Interlock Switches | Neutral Start, Operator Presence | p. 12 |
| PTO DRIVE Type | V-Belt | p. 12 |
| Transmission Drive | Double V-Belt | p. 12 |
| Engine Mounting Plate Cap Screws | 36-43 Nm (313 – 381 lb-in.) | p. 30 |
| Engine Mounting Bolts | 54 N•m (40 lb-ft) | p. 30 |
| PTO Clutch: Amperage Draw (Maximum) | 4 Amp | p. 103 |
| Spark Plug Coil: Resistance / Amperage (primary) | 0.8-1.2 ohms/11.5–8.5 amps (per plug) | p. 102 |
| Spark Plug Coil: Resistance / Amperage (secondary) | 1.3-1.7 ohms/7.7–5.9 amps (per plug) | p. 102 |
John Deere GX355 Common Problems This Manual Covers
Excessive vibration in the deck or chassis when not running at full throttle
Measure mower deck side-to-side blade height and keep the difference under the 3 mm (0.125 in.) maximum listed on page 367. Remove each blade and check for bends or chips, then torque the PTO clutch mounting bolt to 73 N·m (54 lb-ft) and confirm the drive belt tracks true in the sheaves before reinstalling the deck.
Manual Section: Mower Deck Troubleshooting p. 367Tractor creeps or moves in one direction only when the pedal is released
Check transaxle fluid level and top off to the 4.4 L (4.6 U.S. qts) capacity specified on page 269; low fluid causes internal slippage that mimics linkage problems. Inspect the neutral return linkage for binding and verify the brake switch shows CONTINUITY when engaged before adjusting the control rod.
Manual Section: Power Train (Hydrostatic) Troubleshooting p. 269Frequently Asked Questions
How do you fix john Deere GX355 PTO engages then cuts out after about 10 minutes of mowing?
Check PTO clutch amperage draw on page 103; maximum draw is 4 amp. Backprobe the PTO solenoid circuit and compare against the 2.8-3.3 ohms resistance and 3.6-4.4 amp draw spec on page 204. If readings fall outside range, replace the solenoid and recheck the clutch air gap at 0.31-0.46 mm (0.012-0.018 in.) before returning to service. p. 204
How do you fix engine stalls under load or bogs down after it reaches operating temperature?
Inspect fuel hoses for collapse or swelling per page 53 and replace any that show cracking or soft spots. Pull the in-line fuel filter and install a replacement per the procedure on page 55; a clogged filter starves the injection pump under load. Confirm standard compression holds at 3040 ± 196 kPa (441 ± 28 psi) before chasing electrical causes. p. 55
How do you fix hard starting or no crank and no click when the key is turned?
Load-test the battery against the 500 amp cold cranking spec on page 12; a battery below that rating won't reliably close the starter solenoid. Check the seat switch for NO CONTINUITY when unoccupied and the brake switch for CONTINUITY when depressed, both referenced on page 202, since a misaligned interlock will kill the start circuit before it reaches the solenoid. p. 202
How do you fix diesel engine loses power and starts missing after 5 to 10 minutes of warmed-up running?
Verify injector holder torque is seated to 33-44 Nm (286-390 lb-in.) on page 57; a loosening holder lets fuel leak past the seal under heat. Check the injector leak-off line for restriction and confirm glow plug operation, then retest compression against the 3040 ± 196 kPa (441 ± 28 psi) spec once the engine cools back down. p. 57
What do I get after purchasing this John Deere GX355?
Instant PDF download. You get the full 416-page searchable Technical Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Is this John Deere GX355 Technical Manual printable?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are there wiring harness diagrams in this John Deere GX355, Lawn and Garden?
Yes. You'll find an electrical wiring diagram covering the main wiring layout.
