Engine System
An engine not tuned to optimal performance can result in low power, inefficient operation and excessive fuel cost. Failure to comply with EPA requirements where applicable can result in considerable fines.
Lubrication System
Oil breaks down chemically and accumulates contaminants over time regardless of engine hours. Heat cycles also break down additives in engine oil and deteriorate lubrication capabilities, which can result in accelerated wear and shorter engine life.
Transmission
Dirty or contaminated transmission oil could result in damage to clutch packs, seals, and bearings. Broken or worn seals can result in oil leaking into operating environment.
Front End System
Worn or cracked forks can fail without warning. Chain worn beyond 2% should be replaced. Improper mast sequencing may prohibit the mast and rollers from operating smoothly. If fork heel thickness is reduced to 90% of original thickness, the lift truck should not return to service. Source: ASME B56.1 of the American Society of Mechanical Engineers Safety Standards for Low Lift and Lift Trucks
Braking System
Contaminated brake fluid may cause steel components to rust, which in turn may cause leaks. Worn brake components can compromise braking performance or cause brakes to fail.
Steering System
Wheel bearings, tie rods, and other steer axle components wear over time. Excessive wear can result in a “loose” or “wandering” steering condition.
Cooling System
Coolant deteriorates over time, reducing the effectiveness of additives and changing the pH factor. Both can damage the water pump, radiator and aluminum components. A damaged fan blade may cause vibration, which can damage the bearings and radiator.
Air Filtration System
Clogged air filters can result in low power, inefficient operation and excessive fuel cost. Improper system sealing, including air filter sealing, can result in dust bypassing the filter element and damaging the engine.
https://www.scmh.com/why-pms-are-critical/
