Troubleshooting

1. SLG double-screw extruder

◇ Check all the flanges and fix bolts of distribution box, gear box, and thrusting box, and tighten the loose one.
◇ Change the lubricate oil of speed reducer every half a year. The oil surface is between the level lines of oil scale. The models of lubrication oil are HJ-30 and HJ-32 engine oil.
◇ Clean the distribution box and change the lubrication oil after the first two months, and then do his every half a year.
◇ Lubrication oil is HJ-32 engine oil. After changing the oil, start the machine to hear if there is abnormal noise in the box.
◇ Check the elasticity of driving triangle belt every month.
◇ Check the rotary cutters regularly and change the worn one in order to keep the shaping quality of products.
◇ Check all the electric equipment connections each week to be sure no loose one and no dust on them. Check every half a year the insulation resistance (less than 0.5Ω) and the ground resistance (less than 4Ω).
◇ After running 20 days, check the state of thrusting bearing in the distribution box. If the clearance is worn to large, change it in time.
◇ After running half a year, check the screw and screw housing. If worn, change the front two parts of screw sleeves.
◇ If idle a long time, oil the mould head, screw, and other parts.

2. DLG 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.
◇ If idle for a