Forbidden to open the guards of the drum and belt, refit it after opening because of stoppage for some reason,When you open the cover to clean and maintain the cuttings dryer system , take note of protecting the nozzle of drum’s small end carefully, because the nozzle is made of hard alloy materials, it is hard and brittle, so jacking and hammering the nozzle is never allowed, and it is also forbidden to put any stick or fingers into the nozzle while the auxiliary motor is working. Even though the drum has stopped now, but the propeller is still working. Stick pulled in will damage the nozzle , and finger may be cut off,If shear pin is cut , replace it with a new one of the same specification and material. It is the best to use the shear pin provided by original manufacture. No other shear pins are. After using , flush and stop according to operational rules . Otherwise, drum or propeller may be jammed.
Make sure discharged solids can flow out of the tank smoothly, otherwise the gate may be blocked,pay attention to rigidity of the tank surface where centrifuge is mounted so as to avoid resonance,Check if main and auxiliary motor’s rotational direction is the same as arrows shows after resetting, no sand can be discharged if not.
Protect feed pipe carefully when removing and installing the centrifuge. Abrasion with the drum will occur when it is bent and it will be wear out at last,Six lunate discs are installed at the big end of the drum. Remount them back according to its series number after disconnecting, don’t exchange them so as to keep drum’s interia balance,No untrained personnel is permitted to operate the centrifuge.
1.Maintenance cuttings dryer .
There are four grease filling points in the centrifuge, two of them are at the top of the main bearing base. After every 8 hours’ running, fill No.2 lithium base grease in ,fill until excessive oil flow out. Another two filling point are at the left and right axle of the drum, fill 2# lithium base grease once every 50 hours (Each time, press grease gun for 10 times)
2.Lubricate the planetary gear box with No.68 engine oil. After the first 150 hours’ running , the engine oil should be replaced completely : First, drain off all the used oil , then fill in 4kg of diesel oil, screw the plug, and then discharge the diesel oil after manually rotating the differential several turns. In the same way, flush it for 2~3 times , finally, fill No.68 engine oil to the required level.
From now on, after every 1000 hours’ running , replace the oil according to the procedures described above .
3.No.20 or No.6 hydraulic transmission oil is normally used for filling into the hydraulic coupler . the oil in the coupler not only have the function of lubrication, but also as a media of transferring torque. The amount of oil feed directly affect the capacity of torque transmission. Max. oil feed shouldn’t exceed 80% of the total volume, otherwise coupler isn’t effective in buffering motor’s starting impact, then lead to pressure rising in the couple cavity while it is running, increase hydraulic loss, leakage and heat may occur; Min. oil feed can’t less than 50% of the total volume, otherwise, bearing can’t be fully lubricated, speed the wear of the bearing, at the same time, noise occur. replace the oil in the coupler after 3000 hours’ running . The oil filled must be filtrated by 80~100 strainer screen in order to keep debris out.
