lx188Understanding the LX188 Component Layout. When exploring the arrangement of mechanical elements in this type of equipment, it’s essential to grasp how various sections are structuredLX172, LX173, LX176, LX178, LX186 & LX188 Lawn Tractors TECHNICAL MANUAL John Deere Lawn & Grounds Care Division TM1492 (31MAY96) Litho in U.S.A 2.