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8.3 CONTROL VALVE INSPECTION
THE MACHINE WILL ONLY TRAVEL IN ONE DIRECTION.
THIS COULD BE CAUSED BY:
A.
Contamination in the hydraulic oil which causes the spool to stick in one position. With the
machine’s power off, the spool of the valve can be manually shifted. On each end of the control
valve, there is a pin in the center of the knurled nut that holds the coil on. To shift the spool
manually, use a small punch or similar device to push these pins in by hand, first one and then, the
other.
Turn the machine on and try it again. If the machine now operates, the hydraulic oil and the filter
should be changed.
B.
A defective coil on the control valve: The coils can be checked by using an Ohm meter. The wires
to the coils must be disconnected. If the ohm reading shows open, the coil is defective and must be
replaced.
Summary of Contents for IRONWORKER 6509-24M
Page 1: ...Page 1 MODEL 6509 24M IRONWORKER PRINTED MARCH 2005...
Page 9: ...Page 9 FIGURE 1...
Page 17: ...Page 17 FIGURE 5...
Page 19: ...Page 19 FIGURE 6...
Page 21: ...Page 21 FIGURE 7...
Page 31: ...Page 31 FIGURE 11...
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Page 39: ...Page 39 FIGURE 15...
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Page 69: ...Page 69 FIGURE 30...
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Page 75: ...Page 75 FIGURE 34...
Page 79: ...Page 79 FIGURE 37...
Page 81: ...Page 81 FIGURE 38...
Page 85: ...Page 85 FIGURE 40 Serial s 5035FF1094 to 7124FF103...