Part of the John Deere Operator Manuals.
Somebody at Deere already decided how often the transaxle oil on a 425 or 445 gets changed, and the answer lives in OMM144042, the 141-page John Deere 425, 445 operator manual PDF for these lawn and garden tractors. Its service interval chart runs from the first 5-hour check out to the 500-hour items, and a troubleshooting chart sorts engine, tractor, steering, mower, and electrical complaints into causes you can chase down in your garage. Operating coverage walks through the dash indicators, the PTO, cruise control, differential lock, and all six safety system tests, while the service sections fill a good third of the book. Gap the spark plugs to 0.76 mm, pour 1.4 liters into the crankcase, and pull the wheel bolts to 88 N·m. A misremembered torque is a wheel working loose mid mow. Bookmarks and a live text layer put any section two clicks from the cover, so grab the download before Saturday.
What's Inside This John Deere 425, 445 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-7 | Thank You for Purchasing a John Deere Product, Using Your Operator's Manual, California Proposition 65 Warning |
| Product Identification | 8 | Record Identification Numbers |
| Safety | 9-20 | Safety-Alert Symbol, Warning: Avoid Serious Injury or Death, Danger: Rotating Blades Cut Off Arms and Legs, Danger: Explosive Gases, Hot Surface, Caution: Pressurized Line |
| Operating | 21-56 | Daily Operating Checklist, Dash Controls, Foot/Platform Controls, Miscellaneous Controls, Steering Wheel, Seat, Rear Wheel Spacing, Testing Safety Systems |
| Replacement Parts | 57-58 | Service Literature, Parts, Part Numbers |
| Service Interval Chart | 59-60 | After First 5 Hours, Break in, 50 Hours, 100 Hours or Annually, 200 Hours, 200 Hours or Annually, 250 Hours or Annually, 500 Hours |
| Service Lubrication | 61-64 | Grease, Lubricating Rear Steering Pivot, Lubricating Steering Cylinder Ball Joints, Lubricating Front Axle |
| Service Engine | 65-86 | Engine Warranty Maintenance Statement, Carburetor, Avoid Fumes |
| Service Transmission | 87-90 | Anti-Chatter Transmission Oil, Checking Transaxle Oil Level, Changing Transaxle Oil and Filter |
| Service Electrical | 91-103 | Cleaning or Replacing Battery, Checking Battery Electrolyte Level, Charging the Battery, Using Booster Battery, Cleaning and Gapping Spark Plugs, Replacing Fuses |
| Service Miscellaneous | 104-111 | Checking Tire Pressure, Checking Tightness of Wheel Bolts, Raising Hood, Removing Grille, Removing and Cleaning Side Panels, Refueling Machine, Filling Fuel Tank |
| Troubleshooting | 112-115 | Using Troubleshooting Chart (Engine, Tractor, Steering, Mower, Electrical) |
| Storing Machine | 116-118 | Storage Safety, Preparing Engine for Storage, Storing the Tractor, Removing the Vehicle From Storage |
| Assembly | 119-127 | Remove Bracing, Fill Fuel Tank Safely, Fill Fuel Tank, Activate Battery, Check Battery Voltage, Install Battery, Install the Steering Wheel, Install Seat |
| Specifications | 128-132 | Engine, Fuel System, Electrical System, Capacities, Drive Train, Travel Speeds, Steering and Brakes, Dimensions - 425 |
| Warranty | 133-138 | Product Warranty, Tire Warranty, John Deere, Federal and California Emission Control System Warranty, Limited Battery Warranty |
| John Deere Quality Statement | 139-140 | John Deere Quality |
| Service Record | 141 | Record Service Dates |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Spark plug gap | 0.76 mm (0.030 in.) | p. 99 |
| Spark plug torque | 20 N·m (15 lb-ft) | p. 99 |
| Wheel bolt torque | 88 N·m | p. 105 |
| Engine oil capacity | 1.4 L | p. 70 |
| Cooling system capacity | 2.8 L | p. 76 |
| Spark plug installation torque | 20 N·m | p. 99 |
| Fuel tank capacity | 24.6 L | p. 108 |
| Steering wheel nut torque | 34 to 41 N·m | p. 124 |
| 425 and 445 Two Wheel Steer | ||
| Transaxle oil capacity (Two Wheel Steer) | 6.6 L | p. 89 |
| 425 and 445 All Wheel Steer | ||
| Transaxle oil capacity (All Wheel Steer) | 5.7 L | p. 89 |
| 425 | ||
| Engine horsepower | 14.9 kW | p. 128 |
| 445 | ||
| Engine horsepower | 16.4 kW | p. 128 |
John Deere 425, 445 Common Problems This Manual Covers
John Deere 425 engine starts then dies after a few minutes, restarts fine after sitting overnight
Loosen the fuel cap half a turn and run the engine. If it stays running, the cap vent is plugged; replace the cap. Drain stale fuel, refill the 24.6 L tank with fresh gasoline using the refueling procedure on page 108, and install a new inline fuel filter.
Manual Section: Engine Troubleshooting p. 112Starter clicks or turns over slowly, engine will not start after winter storage
Check the battery terminals for corrosion and clean them following the battery service steps on page 91. Verify electrolyte covers the plates and charge the battery fully; the stock battery is rated 340 CCA, listed on page 129. Test the seat and brake interlock switches before condemning the starter.
Manual Section: Service Electrical p. 91Engine misses under load and runs rough at full throttle in thick grass
Remove the spark plugs and inspect for fouling. Clean or replace them, gap to 0.76 mm (0.030 in.), and torque to 20 N·m following the procedure on page 99. Check the air filter for clogging, then work through the engine miss chart on page 112 before calling the dealer.
Manual Section: Engine Troubleshooting p. 112Coolant level drops and recovery tank overflows after mowing on hot days
Check coolant level only when the engine is cold; the system holds 2.8 L, covered on page 76. Top off with the specified coolant mix, then remove the grille and side panels per page 104 and clean grass clippings from the radiator fins. If loss continues, have your dealer pressure test the system.
Manual Section: Service Engine p. 76Tractor will not move or creeps weakly with the engine running at full throttle
Check the transaxle oil level with the tractor on level ground using the procedure on page 87. Two wheel steer machines hold 6.6 L, listed on page 89. Verify the transmission bypass valve is pushed in fully and the park brake is released, then run the tractor chart on page 112.
Manual Section: Service Transmission p. 87Frequently Asked Questions
What do the blinking signals on the Model 445 injection system failure indicator mean?
The injection system failure indicator serves as a diagnostic tool. A long blink (-) followed by a short blink (·) indicates specific sensor issues: - · · is an Air Temperature Sensor problem, - · · · is a Water Temperature Sensor problem, - - · is an Air Pressure Sensor problem, and - - · · means the key switch was turned on too quickly. p. 33
What is the torque specification for the rear wheel bolts on the John Deere 425, 445?
The rear wheel bolts should be tightened to 88 N·m (65 lb-ft). p. 27
What are the replacement part numbers for the fuel filters on the 425 and 445 models?
The fuel filter for the 425 model is part number AM116304, and the fuel filter for the 445 model is part number AM118131. p. 57
What is the cooling system capacity for the John Deere 425, 445 lawn and garden tractors?
The cooling system capacity is 2.8 L (3.0 U.S. qt). p. 76
What spark plug gap is required for the engine in the John Deere 425, 445 Lawn and Garden Tractors?
The spark plug gap must be 0.76 mm (0.030 in.). p. 99
Do I get instant access to this John Deere 425 Operator Manual?
A 141-page Operator 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 John Deere 425 manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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