Hirschmann PAT DS 350GM, Руководство по устранению неисправностей

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Flowcharts
Rev A 05/01/01 // SB 190113_A
17
3.6 ANTI-TWO BLOCK PROBLEM
Check Bypass plug installed
Refer to Drawing 3 in Section 4.
PROBLEM: Function of Anti-Two-Block System is faulty.
START
Check to see whether or not crane is in two-block condition.
Correct? Lower hook down into safe position
Plug appropriate bypass plug into socket of
junction box.
Turn power off or disconnect wire from connection board X1:31 in central unit. Remove the
bypass plug and measure the resistance at the boom nose box between terminals 1 and 6
with a ohmmeter. This checks the function of the Anti-Two Block switch.
Switch closed = 0Ohms (weight installed)
Switch open => 1 Megaohm (weight removed)
Pug the bypass plug into the boom nose box.
Refer to Drawing 3 in Section 4.
Check wire connections in boom nose
box. Replace Anti-Two-Block switch.
Refer to Drawing 3 in Section 4.
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Correct?
Correct?
No
Yes
No
NO
YES
YES
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