Table 3-1. Troubleshooting - CONT.
Test or Inspection
HOIST OPERATION JERKY, OR DOES NOT LIFT OR LOWER LOAD.
Step 1. Check outside temperature. If temperature is less than 0 F (-17 C), hydraulic oil may
be thick and not flow easily. When operating crane (1) in extremely cold weather, proper
warm-up procedures must be followed.
If operating crane in extremely cold weather, refer to Para 2-41 for specific
If operating crane in other than extreme cold conditions, go to Step 2.
Step 2. Check that load is not over the load limit shown on the range diagram (Para 2-29).
If load is over maximum weight, lower load and reduce load to correct weight.
If load is OK, go to Step 3.