PSR PAT ANTI-TWO-BLOCK Installation, Operator’s & Troubleshooting Manual page 29

TROUBLESHOOTING MANUAL
Measure the A2B signal in the cable reel between X1:Brown and X2:Red wires on the
Correct?
Measure the A2B signal in the cable reel between terminal 7 and 8 with an ohmmeter.
Correct?
Measure the A2B signal in the boom base box between terminal 5 and 6 with an ohmmeter.
Correct?
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slip ring with an ohmmeter.
Switch closed =4700 ±500Ohms
Switch open => 1 Megaohm
Refer to Drawing 5, Section 4.
Fault in wiring between boom nose box and cable reel. Check
for damaged length cable and wiring.
No
Refer to Drawing 5 Section 4.
If broken length cable, Refer to Section 4.4.
Switch closed =4700 ±500Ohms
Switch open => 1 Megaohm
Refer to Drawing 5, Section 4.
No
Switch closed =4700 ±500Ohms
Switch open => 1 Megaohm
Refer to Drawing 5, Section 4.
Fault in 7 conductor cable between cable reel and boom base box.
No
Replace slip ring
Refer to section 4.5.
Refer to Drawing 5, Section 4.
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