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| Brand Name: | ZHENGYUAN |
| Model Number: | SL600S |
| MOQ: | 1 SET |
| Price: | $45000 |
| Payment Terms: | tt |
| Supply Ability: | 25 sets / month |
1.Power system maintenanceDaily check
① Oil level (maintain scale scale at 1/2-2/3)
② Air filter pressure difference (replace immediately if it exceeds 25kPa)
③ Coolant pH value (controlled between 8.5-10.5)
500 hours of maintenance
l Replace the fuel filter element (Cummins recommends using the FF5745 model)
l Clean the carbon deposits on the turbocharger (wire brush is prohibited, use carburetor cleaner)
Fault warning
l Continuous emission of black smoke: clogged fuel injectors or insufficient air intake
l Water temperature exceeds 95 ℃: Check if the thermostat or radiator fins are blocked
Hydraulic system
Key maintenance points
l Hydraulic oil cleanliness (NAS level 8 standard, quarterly testing)
l Pump body vibration value (axial vibration ≤ 4.5mm/s, using Fluke 810 vibrometer)
l Seal replacement cycle (Parker brand seal rings must be replaced every 2000 hours)
Operation taboos
l Prohibit mixing hydraulic oils of different brands (such as Shell and Mobil, which need to be thoroughly rinsed)
l Before starting in winter, the oil temperature needs to be preheated to ≥ 15 ℃ (through the fuel tank heating plate)
Drill rod and drill bit
|
Maintenance Object |
Operating specifications |
Tools/Materials |
International Standards |
|
Drill pipe thread |
Apply EP-2 thread grease after each disassembly |
Copper wire brush cleaning |
API RP 7A |
|
Pdc bits |
Cover the tooth tips with anti rust film during storage |
VCI gas-phase rust proof paper |
ISO 10407 |
|
Drill collar stabilizer |
Scrap if radial wear exceeds 3mm |
Laser caliper |
API SPEC 7-1 |
Sleeve maintenance
Storage requirements
l Stacking no more than 5 layers, separated by wooden mats between layers (spacing ≥ 30cm)
l The end sealing cover maintains airtightness (in environments with humidity<60%)
Pre well inspection
l Ultrasonic testing (prohibited for wall thickness deviation>10%)
l Ellipticity measurement (straightening is required if it exceeds 1% of the nominal diameter)
|
Device Type |
Maintenance focus |
Testing tools |
Parameters Standard |
|
Vibrating screen |
Screen tension maintained at 50-70N |
Tensiometer |
API RP 13C |
|
Desander |
Cyclone cone angle wear>2 ° replacement |
Angle gauge |
ISO 13501 |
|
Centrifuge |
Differential oil temperature ＜ 85 ℃ |
Infrared thermometer |
GB/T 10901 |
|
Sensor calibration Sensor type |
Calibration cycle |
Standard Equipment |
Allowable error |
|
Pressure sensor |
6 months |
Fluke 729 |
≤0.5%FS |
|
tilt sensor |
12 months |
Wyler Clinometer |
±0.1° |
|
The torque sensor |
3 months |
HBM T12 |
±1% |
5.Maintenance of well control system
Functional testing
· Weekly remote control console accumulator pressure detection (17.5-21MPa)
· Monthly full-size gate shear test (cutting time ≤ 45 seconds for a drill pipe with a diameter of 127mm)
Sealing management
· Circular rubber core storage temperature 10-25 ℃ (avoid direct sunlight)
· The amount of sealing grease added to the gate should be ≥ 4.5kg each time (using Shaffer special grease)
|
Maintenance level |
Time/Mileage |
core content |
Estimated working hours |
|
Routine maintenance |
Every 8 hours |
Oil level/filter element/bolt inspection |
0.5-1 hour |
|
elementary maintenance |
250 hours |
Lubrication point oil injection+instrument calibration |
2-3 hours |
|
Secondary maintenance |
1000 hours |
Hydraulic oil replacement+gearbox disassembly and inspection |
8-12 hours |
|
Overhaul and maintenance |
8000 hours |
Engine maintenance+structural component inspection |
72 hours+ |
