From track-shoe pre-tension at delivery to slew-bearing rebuild at mid-life, SANY keeps excavator and loader fleets earning on the haul road with documented 250 / 500 / 1000 hour intervals and a contracted mean-time-to-repair under 18 hours.
Hydraulic flow test, slew-bearing torque audit, and pilot pressure baseline are logged before the machine leaves the yard. Operating weight stickers, boom length plates, and load-moment indicator checks travel with the handover pack for your equipment manager.
Undercarriage track tension, Tier 4 Final emissions sampling, and boom pin & bushing rotation follow a 250 / 500 / 1000 hour cadence. Return-line filters are swapped against ISO 4406 cleanliness targets so hydraulic system pressure stays inside the OEM band.
Cylinder reseal, final-drive swap, and cab vibration calibration at the 8,000 hour window restore dig performance and protect residual value for fleet replacement planning.
Five checkpoints every earthmoving contractor recognizes — written for haul-road reality, not workshop theory.
Track-shoe pre-tension and pilot-pressure baseline logged for warranty. Bucket capacity and digging depth verified against the purchase order.
Hydraulic-return filter swap and oil sample to the ISO 4406 lab. Early wear metals flag pump or final-drive issues before a weekend outage.
Engine, hydraulic, and final-drive oils changed together with slew-ring greasing. DEF quality check for Tier 4 Final / EU Stage V packages.
Boom and arm pin clearance gauges, cab ROPS torque audit, and slewing speed calibration under load. Attachment valve leakage test for hammers and quick hitches.
Undercarriage rebuild, cylinder reseal, and on-site reactivation. Wear forecast compared to actual track shoe and sprocket life for the next cycle plan.
Share fleet size, average haul-road kilometers, excavator class mix, and current hour meters. We return an interval map covering hydraulic cleanliness sampling, undercarriage wear survey windows, and parts staging recommendations before your next peak season.