How To Choose The Right Oil for The Maintenance of Small Rotary Drilling RIGS

In the daily maintenance of small rotary drilling RIGS, choosing the right maintenance oil is of vital importance. This not only extends the service life of the equipment but also ensures its efficient and stable operation. The following introduces to you from six aspects how to choose the right oil products:

1. Engine oil: Select the viscosity grade based on the operating environment temperature of the equipment. For example, use 5W-30 in low-temperature areas and 15W-40 in high-temperature areas. Priority should be given to API SJ grade or above to ensure the lubrication and anti-wear effect.

2. Hydraulic oil: Select the viscosity according to the system design requirements. Generally, 46 # anti-wear hydraulic oil is used in summer and 32 # in winter. Avoid using mixed or deteriorated oil products to prevent hydraulic system failures.

3. Gear oil: Heavy-duty gear oil (GL-5) is required for gearboxes and slewing mechanisms. The viscosity should be selected based on the transmission type. 85W-140 is used for helical bevel gears, and 80W-90 can be chosen for cylindrical gears.

4. Grease: All grease nipps need to be filled with lithium-based grease (NLGI grade 2). Use waterproof type in humid environments and composite aluminum-based grease for high-temperature areas to ensure that the lubrication points are fully lubricated.

5. Coolant: Use long-lasting antifreeze throughout the year (with the freezing point 10℃ lower than the local minimum temperature) to prevent water-based coolant from corroding the engine. Regularly check the freezing point and liquid level.

6. Brake fluid: DOT grade 4 synthetic brake fluid is selected to ensure a high boiling point and low moisture absorption rate. When replacing, the air in the pipeline should be completely drained to ensure the safety and reliability of the braking system.

Conclusion: The selection of oil for small rotary drilling RIGS must strictly follow the requirements of the equipment manual. The type and specification of oil should be precisely matched in combination with the working environment. Regular oil replacement and proper oil cleaning should be carried out to maximize the performance of the equipment, reduce operation and maintenance costs, and extend its service life.