Maeda MC815C, Operation Manual, Page: 292 / 426

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[3] CHECKING CRANE OPERATIONS
To check the operation of the crane, see “OPERATION 2.14 OUTRIGGER SETTING
OPERATION” and make sure to set the outriggers to maximum.
To check the operation of the crane, see “OPERATION 2.15 CAUTIONS BEFORE CRANE
OPERATION” to “OPERATION 2.23 CRANE STOWAGE OPERATION” and observe the
procedure and precautions.
1. Pull the operation lever on the right inward and check
that the boom rises smoothly. Also, push the operation
lever on the right outward and check that the boom
lowers smoothly. At this time, check if abnormal noise is
generated from the parts of the boom or boom
derricking cylinder. Repair if any abnormality is found.
2. Push the operation lever on the left forward and check
that the boom extends smoothly. Also, pull the
operation lever on the left backward and check that the
boom retracts smoothly. At this time, check if abnormal
noise is generated from the parts of the boom or boom
telescoping cylinder. Repair if any abnormality is found.
3. Push the operation lever on the right forward and check
that the hook is unwound smoothly. Also, pull the
operation lever on the right backward and check that
the hook is wound smoothly. At this time, check if
abnormal noise is generated from various parts of the
boom and winch motor. Repair if any abnormality is
found.
4. Push the operation lever on the left outward and check
that the crane rotates counterclockwise smoothly. Also,
pull the operation lever on the left inward and check that
the crane rotates clockwise smoothly. At this time,
check if abnormal noise is generated from around the
post. Repair if any abnormality is found.