For the Komatsu PC200 excavator final drives, choosing the proper gear oil is important for making certain functional dependability, longevity, and performance. Last drives function as planetary gear reducers, moving high torque from the travel electric motors to the tracks while withstanding considerable mechanical anxiety, shock lots, and thermal biking. Using an unacceptable lube accelerates wear, boosts failing threat, and concessions efficiency.
(what gear oil do you use in the final drives on a komatsu 200 excavator)
Komatsu mandates specific efficiency criteria for last drive lubricating substances to maintain warranty compliance and ideal feature. The primary demand is an API GL-5 rated gear oil. This classification makes sure appropriate severe stress (EP) defense, anti-wear buildings, oxidation stability, and deterioration inhibition– vital for the hypoid and global gear collections within the last drive setting up.
Viscosity option depends on ambient operating temperatures. For standard conditions (over -10 ° C/14 ° F ), SAE 80W-90 is typically recommended. In high-temperature environments (consistently going beyond 30 ° C/86 ° F) or under severe cyclic loading, SAE 85W-140 offers enhanced movie strength and thermal security. Multi-grades like 80W-90 or 85W-140 make certain consistent circulation throughout temperature level arrays, minimizing start-up wear in cool climates while preserving viscosity under heat.
Komatsu highlights making use of oils satisfying Komatsu Original (KOS) requirements or equivalent. While aftermarket GL-5 oils might be sufficient, real Komatsu equipment oil (e.g., Komatsu SAE 80W-90 Gear Oil P/N 20Y-60-21100) is engineered for specific compatibility with seal products, gear metallurgy, and thermal profiles. Third-party choices should demonstrably match KOS performance metrics; common GL-5 oils without OEM recognition danger suboptimal security.
Trick lubricant homes consist of:
– High EP Additives: Zinc dialkyldithiophosphate (ZDDP) or sulfur-phosphorus substances avoid gear scuffing and micropitting under boundary lubrication.
– Robust Anti-Wear Representatives: Guard bearings and equipment teeth from abrasive wear.
– Oxidation Resistance: Reduces sludge formation and thickness drift at continual high temperatures.
– Foam Reductions: Stops air entrainment, making certain constant lubrication.
– Seal Compatibility: Non-corrosive to nitrile or polyacrylate seals, protecting against leakages.
Avoid auto engine oils, global tractor fluids (UTTO), or lower-grade GL-4 oils. These lack enough EP additives, causing fast equipment distress. Contamination control is vital; use tidy funnels and storage containers during refills.
Maintenance periods for final drive oil modifications are specified in the Komatsu PC200 Procedure & Maintenance Handbook (commonly every 1,000 solution hours). Regular oil degree checks (post-shutdown) are vital to find leakages or irregular consumption. Underfilling reasons lubrication hunger, while overfilling induces seal damages through liquid expansion.
(what gear oil do you use in the final drives on a komatsu 200 excavator)
In summary, stick strictly to Komatsu’s instruction: API GL-5 gear oil in SAE 80W-90 or 85W-140 thickness, verified versus KOS requirements. This guarantees height last drive performance, minimizes downtime, and extends part service life. Always cross-reference the equipment’s identification number with the most up to date Komatsu manual for model-specific updates.