All 182 pages of this John Deere AS-2025 technical manual PDF (OEM CTM4687) are focused on one system: front wheel drive axles across the AS-2025, AS-2035, AS-2035N, AS-2045, AS-2060, MS-2025, MS-2035, and MS-2045. Inside, step-by-step procedures walk through every major assembly, from steering cylinder and tie rods to planetary drive, knuckle housing, and the full differential teardown. You also get exploded views, system diagrams, torque tables, and maintenance procedures, organized so your shop time goes to fixing, not hunting. Torque your tie rod piston rod to 300 N•m (220 lb-ft) and set the ring gear-to-differential housing screws to 145 N•m (110 lb-ft). Tractor's down and the clock is running. Pull up this bookmarked PDF on your tablet and have the right spec before you reach for the wrench.
What's Inside This John Deere AS-2025 & variants Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Information | 13-24 | Recognize Safety Information, Handle Fluids Safely, Avoid High-Pressure Fluids, Work in Ventilated Area, Wear Protective Clothing, Practice Safe Maintenance |
| General Repair Information | 25-28 | General Safety and Repair Information, Torques for Bolts and Nuts, Metric Standard Threads (Iso), Metric Fine Threads (Iso) |
| Steering Cylinder and Tie Rods | 29-62 | Special or Essential Tools, Specifications, Steering Cylinder and Tie Rod - Sectional View, Steering Cylinder and Tie Rod - Exploded View, Remove Steering Cylinder |
| Planetary Drive and Wheel Hub | 63-98 | Special or Essential Tools, Specifications, Planetary Drive and Wheel Hub - Sectional View, Planetary Drive - Exploded View, Planetary Drive Removal, Planetary Drive Repair |
| Knuckle Housing and Drive Shafts | 99-122 | Special Tools, Other Material, Specifications, Knuckle Housing and Drive Shaft - Sectional View, Knuckle Housing Removal, Drive Shaft Repair |
| Axle Housing and Differential | 123-168 | Special Tools, Other Material, Specifications, Differential - Sectional View, Differential - Exploded View, Axle Housing - Exploded View |
| Description and Method of Operation | 169-180 | Front Wheel Drive Axles - Summary of References, Description of Front Wheel Drive, Layout of Front Axle, Operation of Differential, Operation of Self-Locking Differential |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| AS-2025 to AS-2045 | ||
| Tie rod steering piston rod torque | 300 N•m 220 lb-ft | p. 30 |
| Rolling drag torque of knuckle pin bearings | 18 to 20 N•m 13 to 15 lb-ft | p. 103 |
| Wheel bolt quantity | 8 used | p. 94 |
| AS-2045 and AS-2060 | ||
| Ring gear to differential housing, fillister-head screws torque | 145 N•m 110 lb-ft | p. 126 |
| All Models | ||
| Seal replacement instruction | Always replace parts like seals, O-rings, self-locking screws and nuts. | p. 25 |
| Sealant for installing seal rings in wheel hub | L64500 (U.S.) 574 (LOCTITE®) Sealant | p. 65 |
| Pinion shaft rolling drag torque without oil seal | 1 to 2 N•m 0.74 to 1.48 lb-ft | p. 126 |
| Gasket material removal instruction | Before re-installation of parts remove all gasket material from sealing surfaces of housings. | p. 25 |
| Differential, disk pack axial free play | 0.2 mm 0.008 in. | p. 126 |
| Planetary Drive - Fill With Oil Plug Torque | 150 N•m 110 lb-ft | p. 93 |
| AS-2060 | ||
| Wheel bolt quantity | 10 used | p. 94 |
| AS-2025, AS-2035, AS-2035N | ||
| Thickness of externally splined disks available (for disk pack axial free play adjustment) | 1.0 mm (0.039 in.), 1.1 mm (0.043 in.), 1.2 mm (0.047 in.) | p. 152 |
John Deere AS-2025 & variants Common Problems This Manual Covers
John Deere AS-2035 front wheel drive disengages intermittently or tractor loses traction in 4WD p. 126
Inspect the differential disk pack for internal wear. Measure axial free play; correct clearance is 0.2 mm (page 126). If play is out of range, select new externally splined disks in 1.0 mm, 1.1 mm, or 1.2 mm thicknesses to restore spec: page 152 covers AS-2025, AS-2035, and AS-2035N; page 157 covers AS-2045 and AS-2060. Rebuild and test 4WD engagement under load.
Manual Section: Axle Housing and DifferentialGrinding or knocking from front axle during steering turns or under heavy traction load p. 103
Remove the planetary drive and inspect gears and bearings for pitting or spalled teeth in the Planetary Drive and Wheel Hub section. Also strip and inspect the knuckle housing per the Knuckle Housing and Drive Shafts section. On AS-2025 through AS-2045, torque king pins to 115 N•m and verify knuckle pin bearing rolling drag falls between 18 and 20 N•m (page 103).
Manual Section: Knuckle Housing and Drive ShaftsOil weeping at front wheel hubs or axle housing, wet seals and pooling underneath p. 93
Replace all seals, O-rings, and gaskets; never reuse them. Remove all old gasket material from sealing surfaces before reassembly. Apply LOCTITE 574 sealant when installing the shaft seal in the axle housing (page 102). After reassembly, torque both the planetary drive fill plug and axle housing fill plug to 150 N•m (pages 93 and 167).
Manual Section: Planetary Drive and Wheel HubUneven front tire wear or steering shimmy develops after wheel hub or axle service p. 31
Check front axle toe-in before condemning any axle or steering component. Measure at the front and rear of both front wheels with the tractor on level ground; correct toe-in is 1.5 mm (page 31). Adjust equally at both tie-rods per the Steering Cylinder and Tie Rods section. Also verify all wheel bolts are fully seated and torqued; loose hardware accelerates uneven tread wear.
Manual Section: Steering Cylinder and Tie RodsMulti-disk brake dragging or not holding pressure after planetary drive disassembly and rebuild p. 91
Connect test equipment and bleed the brake hydraulic system before testing. Run the high-pressure test per page 91; pressure drop must not exceed 300 kPa (3 bar; 44 psi). The low-pressure test must show zero pressure drop. If either test fails, remove and inspect the brake piston and seal rings in the Planetary Drive and Wheel Hub section.
Manual Section: Planetary Drive and Wheel HubFrequently Asked Questions
What are the torque specifications for John Deere AS-2045 axle fasteners?
For the AS-2045 axle, specific torque values apply to various fasteners. The ring gear to knuckle housing cap screws (with TLS) should be tightened to 70 N•m (50 lb-ft). Planetary carrier to wheel hub fillister-head screws (AS-2025 to AS-2045) require 30 N•m (22 lb-ft). The tie rod to knuckle housing self-locking nut for AS-2045 should be tightened to 100 N•m, plus 1/2 turn (180°) (74 lb-ft, plus 1/2 turn (180°)). Bevel pinion drive shaft self-locking hex. nuts (AS-2025 to AS-2045) are torqued to 450 N•m (330 lb-ft).
How do I identify the axle model on a John Deere MS-2035?
To identify the axle model on a John Deere MS-2035, locate the type plate on the right-hand side of the axle housing. This plate displays the axle type, which is essential for finding the correct repair information in the Component Technical Manual.
What are the replacement specifications for front axle seals?
When replacing front axle seals, always use new seals. For installation, specific tools are recommended, such as KJD10183 for AS-2025, AS-2035, AS-2035N knuckle housing oil seals, and KJD10203 for AS-2045 knuckle housing oil seals. Additionally, L64500 (U.S.) 574 (LOCTITE®) sealant is specified for installing shaft seals in the axle housing.
What are the replacement specifications for bearings?
For bearing replacement, damaged or excessively worn parts must always be replaced. Before installation, apply clean hydraulic oil to all bearings. Specific tools are required for installing tapered roller bearing cups; for AS-2025, AS-2035, and AS-2045, use OTC27488 and OTC27523, while for AS-2060, use OTC27488 and OTC27528.
How will I receive this John Deere AS-2025 & variants Technical Manual?
A 182-page Technical Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone — no shipping wait.
Are there any print restrictions on this manual?
Yes, print as many copies as you want — there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Document Quality
This is a native digital PDF document, allowing you to search and copy the full text content. The text is consistently crisp and easy to read on every page. Diagrams and illustrations are a mix of clear raster images and sharp technical drawings, with all labels easily readable. The pages are clean, free from scan artifacts, stains, or skewed content. You will find several blank filler pages, which are typical for maintaining section formatting in manuals.
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