Krueger Crane Systems INC4699 Colt Road, Rockford, ILL, 61109BTroubleShut off and light is onCause1.Counterweight is missing.2.Jumper cable is missing.3. Broken cable, bad connection Main Boom.4. Broken cable, bad connection Rooster Sheave/Jib.5. Defective relay.6. Defective Anti-Two-Block switch.Corrective action1.Make sure the counterweight is attached to the Anti-Two-Block switch (Main Boom, Rooster Sheave or Jib) andfree to move.2.Make sure jumper cable is attached from:- - Boom nose to Rooster Sheave- Boom nose to JibRefer to figure 5 on page 73.Check wiring for outside damages and loose connections, starting from the control panel to the boom nose.Check with an OHM meter (figure 5 on page 7) for an open circuit.a. Take wires off, on terminal No.3 and No.6 in the control panel. Check at the wires you took off with anOHM meter. If the OHM meter reads a closed circuit, the wiring from the panel to the Anti-Two-Blockswitch is correct. The trouble is inside the control panel. If it reads an open circuit the trouble is betweenthe panel and Anti-Two-Block switch.b. Open the cable reel and take the wires off the cable reel sliprings. Check for an open circuit at the wiresleading towards the Anti-Two- Block switch. If the OHM meter indicates a closed circuit the wiring fromthe cable reel to the Anti-Two-Block switch is correct. Replace the cable from the control panel to thecable reel.c. If the OHM meter reads an open circuit, open the 6 pin receptacle and disconnect the wires on No.2 andNo.4. Check on No.2 and No.4 for an open circuit. If the OHM meter reads a closed circuit replace thecable on the cable reel.d. If the OHM meter indicates an open circuit check the Anti-Two-Block switch. Refer to A, B, C on page13.4. If Main Boom circuit is correct take the jumper cable and check with an OHM meter the 6 pin plugs onboth ends. The OHM meter should read a closed circuit at No.2 and No.2 on both plugs, also on No.4and No.4 on both plugs. If not replace jumper cable.Phone (815) 874-9402Telex 25-7498-14
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
