Hydraulic flow recalibration · Tier 4 Final emissions audits · undercarriage rebuild windows tied to operating hours — documented for EPC reliability leads and quarry fleet managers.
Choose the inclusion band that matches mass earthworks, quarry loading, urban trenching or long-reach corridor work. Documentation packs ship with every contracted visit, including hydraulic system pressure logs, ISO 4406 cleanliness samples and undercarriage wear measurements keyed to hour meters rather than calendar months alone.
| Tier | Inclusion | Hydraulic / Undercarriage Audit | Documentation |
|---|---|---|---|
| T1 Mass Earthworks | 24/7 dispatch · travel-motor warranty | Quarterly slew-bearing & track-tension checks | ISO 9001 audit pack + Tier 4 NOx log |
| T2 Quarry Loading | Scheduled bucket & tip rebuilds | Monthly hydraulic cleanliness sampling | Breakout-force trend chart |
| T3 Urban Utilities | Zero-tail-swing geometry checks | Auxiliary circuit pressure verification | Municipal bid emissions packet |
| T4 Long-Reach Corridor | Annual boom pin NDT | Pilot pressure & counterweight audit | Lift-assist method statement pack |
Bank cubic meters, average digging depth and attachment mix are written into the service contract so spare kits match real excavator duty instead of generic PM calendars.
DPF and SCR samples under load follow the ISO 8178 C1 cycle and are submitted to the project EHS officer with DEF consumption trends.
Main-pump flow and pilot pressure are brought back to OEM tolerance; ISO 4406 particle counts are logged before the excavator returns to the cut.
MTBF, MTTR and undercarriage wear rates are signed by the Hyundai reliability lead and filed with the contractor’s engineer of record.
Share your fleet hour meters and attachment mix — we will map a tiered support plan sized for hydraulic excavators, not generic yellow iron.