Cause:
● Rubber ring is too loose.
Resolvent:
● Dismantle limit screw and switch then fasten the rubber ring.
6.4 Trouble: Crown bar can not work.
Cause:
● Steel ball damaged in switch.
● The top of switch do not touch the ball, or the ball is dropped.
Resolvent:
● Replace the steel ball.
● Fasten the switch or put the steel ball in it.
6.5 Trouble: Oil leakage in top of crown bar.
Cause:
● Sealing ring damaged at tip of piston rod.
Resolvent:
● Replace with 14×2.4, type O rings (Purchase).
6.6 Trouble: Oil suction is not enough in fast and slow pump.
Cause:
● There is dirt in the filter or oil is not enough.
Resolvent:
● Remove No.12 part and clean mesh with gasoline then fill it.
6.7 Trouble: The positioning hole is split in mold.
Cause:
● There are side load in mold: the bending position is not correct
for re-bend work piece.
Resolvent:
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