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TM 9-2320-364-10
3-36
Table 3-1. Troubleshooting - CONT.
Malfunction
Test or Inspection
Corrective Action
MATERIAL HANDLING CRANE (MHC) (CONT).
8.
HOIST DOES NOT SPOOL CABLE PROPERLY (CONT).
Do not hoist up while correcting cable wraps, just let the cable lay on
the ground or damage to equipment may result.
Step 4. Observe the cable remaining on the hoist drum, for any looseness or
gaps between wraps. If gaps exist, lower the boom as necessary to
access the hoist (do not hoist up, just let the cable lay on the ground).
Using a hammer, (Item 10, Appendix B, BII) gently tap the cable
wraps back into close contact.
Do not touch the hoist control while raising boom or damage to
equipment may result.
Step 5. Raise the boom to maximum angle.
Step 6. If possible, without changing the boom length and angle, attach a load
not exceeding 3900 lbs. (1771 kg). Otherwise, reconfigure the crane as
little as possible to achieve the load attachment, while carefully
monitoring the state of spooling and place the load at a location
equivalent to maximum boom length and maximum boom angle (i.e.
approximately 14 ft. (4.27 m) radius). Extend the boom to maximum
length and elevate to maximum angle.
When the load rests on the ground, do not allow the hookblock to rest on
the load and the cable to become completely unloaded or damage to
equipment may result.
Step 7. Lift the load carefully and hoist it slowly to the maximum height (do
not two-block), observing the spooling. If mis-spooling occurs,
immediately lower the load and repeat up to 12 times.
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