TECHNICAL MANUAL - John Deere Manual

1 LX172, LX173, LX176, LX178, LX186 & LX188 Lawn Tractors TECHNICAL MANUAL John Deere Lawn & Grounds Care Division TM1492 (31 MAY96) Litho in M58372LX Series Lawn - 1 This TECHNICAL MANUAL is written for an experiencedtechnician and contains sections that are specifically forthis product.

2 It is a part of a total product MANUAL is organized so that all the information on aparticular system is kept together. The order of groupingis as follows: Table of Contents Specifications Component Location System Schematic Theory of Operation Troubleshooting Chart Diagnostics Tests & Adjustments RepairNote:Depending on the particular section or systembeing covered, not all of the above groups maybe section will be identified with a tab symbol ratherthan a number. The groups and pages within a sectionwill be consecutively information, illustrations and specifications in thismanual are based on the latest information available atthe time of publication. The right is reserved to makechanges at any time without appreciate your input on this MANUAL .

3 To help, thereare postage paid post cards included at the back. If youfind any errors or want to comment on the layout of themanual please fill out one of the cards and mail it back tous. COPYRIGHT 1996 JOHN Deere HORICON WORKSH oricon, Wisconsin All rights reservedInformation Specifications andEngine KawasakiElectricalPower Train (Hydrostatic)SteeringBrakesEngine KohlerSafetyMiscellaneousPower Train (Gear) - 26/4/96 RECOGNIZE SAFETY INFORMATIONThis is the safety-alert symbol. When you see thissymbol on your machine or in this MANUAL , be alert tothe potential for personal recommended precautions and safe Signal WordsA signal word DANGER, WARNING, or CAUTION is used with the safety-alert symbol. DANGER identifies the most serious or WARNING safety signs are located nearspecific hazards.

4 General precautions are listed onCAUTION safety signs. CAUTION also calls attentionto safety messages in this SAFETY SIGNSR eplace missing or damaged safety signs. See themachine operator s MANUAL for correct safety FLUIDS SAFELY-AVOID FIRES Be Prepared For EmergenciesWhen you work around fuel, do not smoke or work nearheaters or other fire flammable fluids away from fire hazards. Do notincinerate or puncture pressurized sure machine is clean of trash, grease, not store oily rags; they can ignite and prepared if a fire a first aid kit and fire extinguisher emergency numbers for doctors, ambulanceservice, hospital, and fire department near - 3 USE CARE IN HANDLING AND SERVICING BATTERIESP revent Battery Explosions Keep sparks, lighted matches, and open flameaway from the top of battery.

5 Battery gas canexplode. Never check battery charge by placing a metalobject across the posts. Use a volt-meter orhydrometer. Do not charge a frozen battery; it may battery to 16 C (60 F).Prevent Acid Burns Sulfuric acid in battery electrolyte is poisonous. It isstrong enough to burn skin, eat holes in clothing,and cause blindness if splashed into eyes. Avoid acid burns by:1. Filling batteries in a well-ventilated Wearing eye protection and rubber Avoiding breathing fumes when electrolyte is Avoiding spilling or dripping Use proper jump start procedure. If you spill acid on yourself:1. Flush your skin with Apply baking soda or lime to help neutralize the Flush your eyes with water for 10-15 Get medical attention immediately.

6 If acid is swallowed: 1. Drink large amounts of water or milk. 2. Then drink milk of magnesia, beaten eggs, or vegetable oil. 3. Get medical attention SAFE SERVICE PROCEDURESWear Protective ClothingWear close fitting clothing and safety equipmentappropriate to the job. Prolonged exposure to loud noise can causeimpairment or loss of hearing. Wear a suitable hearingprotective device such as earmuffs or earplugs toprotect against objectionable or uncomfortable loudnoises. Operating equipment safely requires the full attentionof the operator. Do not wear radio or musicheadphones while operating Machines SafelyTie long hair behind your head. Do not wear a necktie,scarf, loose clothing, or necklace when you work nearmachine tools or moving parts.

7 If these items were toget caught, severe injury could result. Remove rings and other jewelry to prevent electricalshorts and entanglement in moving Proper ToolsUse tools appropriate to the work. Makeshift tools andprocedures can create safety hazards. Use power toolsonly to loosen threaded parts and fasteners. Forloosening and tightening hardware, use the correct sizetools. DO NOT use measurement tools on metricfasteners. Avoid bodily injury caused by slippingwrenches. Use only service parts meeting John - 46/4/96 Park Machine SafelyBefore working on the machine:1. Lower all equipment to the Stop the engine and remove the Disconnect the battery ground strap. 4. Hang a DO NOT OPERATE tag in operator Machine Properly And Use Proper Lifting EquipmentIf you must work on a lifted machine or attachment,securely support the machine or not support the machine on cinder blocks, hollowtiles, or props that may crumble under continuous not work under a machine that is supported solelyby a jack.

8 Follow recommended procedures in heavy components incorrectly can cause severeinjury or machine damage. Follow recommendedprocedure for removal and installation of componentsin the In Clean AreaBefore starting a job:1. Clean work area and Make sure you have all necessary tools to do your job. 3. Have the right parts on Read all instructions thoroughly; do not attempt High Pressure WashersDirecting pressurized water at electronic/electricalcomponents or connectors, bearings, hydraulic seals,fuel injection pumps or other sensitive parts andcomponents may cause product malfunctions. Reducepressure and spray at a 45 to 90 degree Work Area SafelyIlluminate your work area adequately but safely. Use aportable safety light for working inside or under themachine.

9 Make sure the bulb is enclosed by a wirecage. The hot filament of an accidentally broken bulbcan ignite spilled fuel or In Ventilated AreaEngine exhaust fumes can cause sickness or death. Ifit is necessary to run an engine in an enclosed area,remove the exhaust fumes from the area with anexhaust pipe you do not have an exhaust pipe extension, open thedoors and get outside air into the : California Proposition 65 WarningGasoline engine exhaust from this product containschemicals known to the State of California to causecancer, birth defects, or other reproductive Paint Before Welding Or HeatingAvoid potentially toxic fumes and dust. Hazardousfumes can be generated when paint is heated bywelding, soldering, or using a torch.

10 Do all work outsideor in a well ventilated area. Dispose of paint andsolvent properly. Remove paint before welding orheating: If you sand or grind paint, avoid breathing thedust. Wear an approved respirator. If you use solvent orpaint stripper, remove stripper with soap and waterbefore welding. Remove solvent or paint strippercontainers and other flammable material from fumes to disperse at least 15 minutes beforewelding or - 5 Avoid Harmful Asbestos DustAvoid breathing dust that may be generated whenhandling components containing asbestos asbestos fibers may cause lung in products that may contain asbestosfibers are brake pads, brake band and liningassemblies, clutch plates, and some gaskets.