| cycle | Serial number | Daily maintenance content |
| every day | 1 | Check the oil level after stopping the pump. If the oil level is too low, add it to the required height. |
| every day | 2 | Check whether the lubricating oil pump pressure gauge reading is normal. If the pressure is too low, check the cause in time. |
| every day | 3 | Check whether the pressure of the suction air bag is normal |
| every day | 4 | The cooling lubricant in the spray pump water tank should be filled up when it is insufficient and replaced when it deteriorates. |
| every day | 5 | Check the cylinder frame cavity. If there is a lot of mud or oil deposits, clean it up. |
| every day | 6 | Check the cylinder head every 4 hours to see if it is loose, and apply grease to the threads when tightening. |
| every day | 7 | Check whether the piston and cylinder sleeve have puncture leakage. If serious, they should be replaced. |
| every day | 8 | Loosen the piston rod clamp once a day, turn the piston rod a quarter turn and then tighten the clamp. |
| every day | 9 | Check the valve cover every 4 hours to see if it is loose, and apply lubricating oil to the threads when tightening |
| every day | 10 | Check whether the safety valve is reliable |
| every day | 11 | When the pump is stopped, check whether the pre-charge pressure of the exhaust air bag is normal. |
| every day | 12 | Observe the alarm hole. If mud is discharged, the corresponding sealing ring should be replaced in time (3 places in total) |
| weekly | 13 | Remove the valve cover, remove the dirt, and apply molybdenum disulfide complex calcium-based grease. |
| weekly | 14 | Check the inner sleeve of the valve guide. If the wear exceeds the requirement, it needs to be replaced. |
| weekly | 15 | Check the suction and discharge valve bodies, valve seats, and valve rubbers. Any damaged ones need to be replaced. |
| weekly | 16 | Check whether the piston locking nut is corroded or damaged. If damaged, replace it (usually three times) |
| weekly | 17 | Check whether the lubrication system filter is blocked. If blocked, clean it. |
| weekly | 18 | Unscrew the plug on the drain flange to drain the dirt and water accumulated in the oil pool. |
| per month | 19 | Check whether the bolts at the hydraulic end are loose or damaged. If so, tighten or replace them as required. |
| per month | 20 | Check the seal ring in the packing box. If it is worn, replace it at least once every three months. |
| per month | 21 | Check whether the filter cartridge in the discharge pipe is blocked by mud, etc. If blocked, clean it. |
| per month | 22 | Replace and clean the dirty oil in the power end oil pool and crosshead oil tank every six months. |
| Per year | 23 | Check the wear of the cross surface. If necessary, rotate the cross head 180° before using it. |
| Per year | 24 | Check whether the guide plate is loose and whether the crosshead clearance meets the requirements. Otherwise, check and adjust. |
| Per year | 25 | Check the pinion shaft and crankshaft tooth surface wear, adjust the surface if necessary. |
| Per year | 26 | Check whether the pinion shaft and crankshaft assembly are intact. If there are any abnormalities, take measures. |
| Per year | 27 | Check the bearings at the power end for damage. If damaged, replace them. |
| Per year | 28 | Check the seals of the rear cover, crankshaft end cover, etc. If they do not provide a good sealing effect, they should be replaced. |
