Check the fixing bolts at connection flanges, distribution boxes, gear boxes, or thrust boxes at regular intervals;if
they are loose,fasten them.
 

      Replace lubricating oil for reduction gears at intervals of every six months; clean distribution boxes and replace 
lubricating oil for new equipment after put into use for two months, and at intervals of every half year since after. After
the oil is replaced,check the bearings in distribution boxes to see if there is any voice after turning on the equipment 
check the oil pump to see if there is gas leakage or blockage.
 

      Adjust it if any loose happens; replace it when it is worn or damaged.
 

      Check the transmission vee belt monthly to ensure its tightness.
 

      Check the rotary cut blade regularly; if it is worn, please replace it to avoid production of inferior products.
 

      Examine the electrical wires once a week to ensure that all wire are tightly connected or covered with no dust;
examine the insulation resistance (less than 0.5 Ω) and grounding resistance (less than 4 Ω) at intervals of half a ye-
-ar.
 

      Check the wear of thrust bearings in the distribution box at the 20th date from the start of running; if the gap isex-
-cessively large, please replace it immediately.
 

      Examine the screw and barrel after the equipment is put into use for half a year; if they are excessively worn,plea-
-se replac e the screw sets at the front.
 

      Apply oil onto the die head, screw, and other parts to prevent corrosion if the use of the equipment is suspended.
 

    Single Screw Extruder
 

      * Change the lubrication oil of the gearbox every half a year, 30# engine oil in winter, and 40# engine oil in summer.
 

      * Check each month the motor belt. If loose, adjust it; if worn, change it.
 

      * Inspect frequently the state of heating ampere meter. If the current changes, check the heating circle in time and
        change the broken one.
 

      * Inspect frequently the cooling pipe to be sure no seepage.
 

      * Check every 15 days the electric lines making sure no loose one and without dust on them.
 

      * Check regularly all the connect components and tighten the loose one.