1. Number of models corresponding to special springs for crushers
PYT900 24 pieces PYT1200 50 pieces PYT1750 60 pieces PYT2200 80 pieces
2. Precautions for the use of special springs for crushers
a. A jack can be used for auxiliary work when you are disassembling the spring.
b. The whole set of springs needs to be replaced when the working stroke of the spring cannot meet the standard.
3. Disassembly steps of the central spring device of the cone crusher
a. Put a hydraulic jack on the frame flange on both sides of the drive shaft frame of the Shilong cone crusher; then place a 25mmx75mmx900mm steel plate with a cone or wedge at one end on the jack and the frame horizontally.
b. Place a 50mmx75mmx75mm cushion block on each steel plate directly under the fan-shaped plate under the spring, and use a jack to eliminate the spring force on the screw bolt; loosen the nut on the spring screw bolt in turn, lower the jack, and increase the spring group by approximately 12mm.
c. Use the nut on the spring bolt to support the spring group, lower the jack, replace the 50mm thick spacer with a 25mmx75mmx75mm spacer, then lift the spring upwards to eliminate the spring pressure, slowly loosen the nut, and lower the jack.
d. Insert a 38mmx75mmx75mm cushion block between the lower spring sector plate and the frame until all the spring force is absorbed by the 38mm thick cushion block. At this time, remove the 25mm thick pad and the nut on the spring bolt; then move the steel plate outward a little, push up the spring group again, and remove the 38mm thick pad.
e. Lower the jack and remove the special conical steel plate. After the spring force is eliminated, the jack and spring can be removed. Sometimes a long tube or thick wooden board must be used to pry out the spring assembly.
f. In order to balance the spring assembly, two hydraulic jacks are required when removing the rest of the springs around the frame. Put a jack on the flange of the frame below both sides of the lower spring sector plate, loosen the spring bolts and nuts in turn, and lower the jacks until the spring assembly is removed.
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