Part of the John Deere Repair Manuals.
Fixing a transmission issue on your John Deere LA100 Series tractor? This 324-page John Deere LA110 technical manual PDF (OEM #TM2371) breaks down the complete V-twin engine, hydrostatic transaxle, and steering assembly for the LA100, LA120, LA130, LA140, and LA150 variants. Inside, you get complete main wiring schematics with wire color abbreviations, step-by-step cylinder leakdown test procedures, and a full section of exploded views for the mower deck spindles. Open to the troubleshooting charts to diagnose starting problems or hydrostatic transmission neutral creep before tearing anything apart. Set the spark plug gap to 0.76 mm (0.030 in.) and tighten the carburetor-to-intake manifold bolts to exactly 8 N·m (70 lb-in.) during the engine rebuild. A dead mower cuts no grass. Download this text-searchable file to your phone, jump straight to the repair, and get your machine back on the turf.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 3-4 | |
| Safety | 5-10 | Use Care in Handling and Servicing Batteries, Prevent Battery Explosions, Prevent Acid Burns, Wear Protective Clothing, Parking Safely, Service Machines Safely |
| Specifications and Information | 11-20 | Fastener Torques, Metric Fastener Torque Values, Inch Fastener Torque Values, General Information, Gasoline, Serial Number Locations |
| Engine - Gas | 21-62 | General Specifications, Torque Specifications, Starting Problems, Throttle/Choke Cable Adjustment, Cylinder Leakdown Test, Engine Removal |
| Engine - V-Twin | 63-114 | Engine Specifications, Torque Specifications, Engine Will Not Start, Cylinder Leakdown Test, Engine Removal, Starting Motor Disassembly |
| Electrical | 115-188 | Reading Electrical Schematics, Wire Color Abbreviation Chart, Component Location, Main Wiring Schematic, Cranking Circuit Operation, Armature Air Gap Adjustment |
| Power Train - Gear | 189-218 | General Specifications, Drive Components, Transaxle Operation, Gear Transmission Check, Shift Linkage Adjustment, Transaxle Disassembly |
| Power Train - Hydrostatic | 219-248 | Specifications, Transaxle Components, Hydrostatic System Operation, Hydrostatic Transmission Diagnosis, Neutral Creep Adjustment, Transaxle Removal and Installation |
| Steering | 249-262 | Steering System Components, Steering Shaft and Pedestal Removal and Installation, Steering Sector Gear Removal and Installation, Front Axle Spindle Replacement |
| Brakes | 263-278 | Brake System - Gear Transaxle, Brake System - Hydro Transaxle, Brake Adjustment - Gear, Brake Adjustment - Hydro, Brake Linkage Removal and Installation |
| Attachments | 279-308 | Inch Deck (Engagement, Idlers and Sheaves, Spindle - Cross Section) |
| Miscellaneous | 309-316 | Tire Pressure Adjustment, Front Wheel Removal and Installation, Front Wheel Bushing Removal and Installation, Rear Wheel Removal and Installation, Hood Removal and Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Spark Plug Gap | 0.76 mm (0.030 in.) | p. 23 |
| Spark Plug Torque | 20 N·m (15 lb-ft) | p. 114 |
| Oil Filter Torque | 12 N·m (9 lb-ft) | p. 61 |
| Carburetor to Intake Manifold | 8 N•m (70 lb-in.) | p. 24 |
| Carburetor Bowl Screw | 4.5 N•m (40 lb-in.) | p. 24 |
| Oil Filter Adaptor Screws | 14 N•m (125 lb-in.) | p. 18 |
| Crankcase Oil Capacity | 1.4 L (1.5 qt) | p. 23 |
| Flywheel Bolt | 136 N•m (100 lb-ft) | p. 24 |
| Engine Oil (With Filter) | 1.9 L (2.0 qt) | p. 65 |
| Oil Pump Removal and Installation | This engine is equipped with a full pressure lubrication system with an oil filter. | p. 65 |
| Metric Fastener Torque Value - M8 Steel or Gray Iron | 24 N•m (18 lb-ft) | p. 14 |
