OPAL FUELS STATION SERVICES, LLC (FROMERLY TRUSTAR ENERGY, LLC)

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SERVICE AGREEMENT —ALL INCLUSIVE 100% WARRANTY PREVENTATIVE MAINTENANCE SCHEDULE- Maintenance Checklist and Duties Guideline performed by Opal Fuels. Tasks included in PM agreement are done by Opal Fuels factory trained field service technicians. Compressors & Related Equipment Lo in • Log ruining hours • Log temperatures • Log suction pressure • Log inter -stage pressures • Log oil levels and usage Compressors • Check oil consumption and oil levels • Check leak rate of mechanical seals • Drain effluents from receiver tank • Leak check pressurized loop — look and listen for leaks • Run to operating conditions; if able • Record operating temperatures • Record operating pressures • Record motor FLA • Observe & record unusual conditions • Observe compressor control operations • Observe priority or buffer fill operation • Fill vehicles as available • Observe dispenser operations • Check gas dryer operations • Inspect suction filter; change as required • Replace all inter -stage filter elements, as applicable to manufacturers requirements • Exchange motion work oil and filter; as applicable and to manufacturers requirements • Clean motion work oil strainer during oil changes • Inspect clean discharge check valves • Check inter -stage check valves for contamination • Clean v-belt grooves of flywheel and motor pulleys • Check condition of v-belt and belt tension • Cleantinspection suction/discharge valves of all stages • Grease/lubricate motor bearings • Check condensate collecting tank for contamination • Check all flexible hoses for signs of deterioration or damage • Inspect v-belts for proper wear and alignment • Torque all cylinder heads (machine warm and in standstill condition) Dispensers- Fast Fill (if applicable) • Verify on/off switch operations • Visually inspect tubing, piping, and valves for leaks and abnormalities