Part of the John Deere Repair Manuals.
This 660-page John Deere LX172, LX173, LX176, LX178, LX186, LX188 Technical Manual (OEM #TM1492) is the one you want open on your bench for the whole LX family, from air cleaner service to final belt adjustment. You get full wiring diagrams for the electrical system, hydrostatic power train schematics, and a troubleshooting section that walks you through starter faults, fuel pump failures, and steering wander instead of leaving you guessing. Metric and inch fastener torque tables sit right next to the specs section, so you're never cross-referencing a separate sheet. Set your carburetor slow idle at 1450 ±75 rpm and confirm fuel pump flow at a minimum 55 mL per 15 seconds on the FC420V before you close it up. No more chasing an electrical gremlin with a test light and hope. Bookmarked by system and searchable by keyword, so you pull it up on your phone in the shop and jump straight to the page you need.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 3 | Safety, Specifications and General Information, Engine, Kawasaki, Kohler, Electrical, Power Train (Gear) |
| Safety | 4-8 | Recognize Safety Information, Handle Fluids Safely-Avoid Fires, Use Care in Handling and Servicing Batteries, Use Safe Service Procedures, Park Machine Safely |
| Specifications & General Information | 9-32 | General Vehicle Specifications, Metric Fastener Torque Values, Inch Fastener Torque Values, Gasoline, Oils and Lubricants, Serial Number Locations |
| Engine Kawasaki | 33-180 | Engine Designation, External Engine Components, Lubrication System Operation, Engine Troubleshooting Guide, Cylinder Compression Pressure Test |
| Engine - Kohler | 181-242 | Engine, Carburetor, Fuel Pump, Oil Filter, Oil Pressure Switch, Valve, Camshaft, Hydraulic Valve Lifters |
| Electrical | 243-460 | Battery, Starter, Stator, Ignition Coil, Spark Plug, PTO Clutch, Coolant Temperature Switch, Electric PTO Clutch |
| Power Train - Gear | 461-506 | Transaxle, Shift Lever and Linkage, Traction Drive Clutch Assembly, Clutch Pedal and Linkage, Traction Drive Belt |
| Power Train - Hydrostatic | 507-568 | Transaxle, Jic Hydraulic Circuit Symbols, Hydraulic/Hydrostatic Schematic, Traction Drive Belt System, Pedal Control System, Hydrostatic System, Transaxle Operation-Gear Power Flow |
| Steering | 569-578 | Steering System Operation, Steering Wander, Lash (Lost Motion) at Steering Wheel, Drag Link Adjustment, Steering Shaft, Steering Sector Assembly |
| Brakes | 579-604 | Brake System Operation, External Brake Linkage Operation, Internal Brake Linkage Operation, Brakes Do Not Engage When Pedal Depressed, Brake Adjustment, Brake Assembly |
| Attachments | 605-644 | Mower Deck, Draft Arms and Gauge Wheels, Idlers and Sheaves, Spindles, Mower Drive Belt, Mower Blades |
| Miscellaneous | 645-652 | Lift Assist and Depth Stop Operation, Front Axle, Spindle Shafts, Wheels, Engine Hood, Mower Deck Lift Linkage |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Starter-To-Engine Mounting Cap Screw Torque | 16 N•m (140 lb-in.) | p. 43 |
| Fuel Pump Pressure (Minimum) | 6.12 kPa (0.90 psi) | p. 39 |
| Fuel Pump Flow (Minimum) | 55 mL/15 seconds (1.8 oz/15 seconds) | p. 39 |
| Carburetor SLOW Idle Stop Screw Setting | 1450 ±75 rpm | p. 39 |
| Flywheel Mounting Nut Torque | 88 N•m (65 lb-ft) | p. 112 |
| Starter No Load Amperage Draw/RPM (Maximum) | 50 amps at 6000 rpm | p. 111 |
| Cylinder Head Distortion (Maximum) | 0.06 mm (0.002 in.) | p. 112 |
| Carburetor Mounting Stud Nut Torque | 17 N•m (150 lb-in.) | p. 112 |
| Flywheel Cap Screw Torque | 66.4 N•m (49 lb-ft.) | p. 185 |
| Cylinder Head Cap Screws Initial Torque | 20 N•m (15 lb-ft) | p. 218 |
| PTO Cap Screw Torque | 56 N•m (45 lb-ft) | p. 247 |
