① Choose clean and high-quality hydraulic oil, usually filtered once a month, replaced every three months, and replaced promptly after deterioration. The oil pump cannot idle without oil.

② The pump cannot be started and operated without cooling water to prevent the ceramic plunger from exploding due to rapid cooling and heating, as well as the rubber sealing ring from being damaged by heat. This water also plays a role in flushing the plunger to extend the life of the plunger and sealing ring.

③ The sealing ring should not be pressed too tightly, and it is appropriate to prevent leakage of grout.

④ When the pump is stopped for a long time in the cold season, the mud in the pump should be pumped out and the water in the cooler should be drained to prevent freezing and cracking.

⑤ The seals in the oil pressure system and mud pipeline should be replaced in a timely manner after wear.

⑥ The plunger stroke should be made as long as possible, so that the piston does not hit the end cover of the cylinder and changes direction quickly.

⑦ When the fluctuation value of mud pressure on the pressure gauge of air tank 47 is greater than 0.2 MPa, the pump must be stopped, the lower valve must be opened, the mud must be drained, air must be replenished, and if necessary, the pressure gauge on the air tank must be removed to flush the air tank from the upper port.

⑧ Regularly (about a week) inspect and flush the valve box

⑨ After six months of use, the bladder type accumulator should be filled with nitrogen or argon gas at a pressure of 3.0MPaIt is appropriate.