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WARNING
• All new, altered or modified equipment should be inspected
and tested by personnel instructed in safety, operation and
maintenance of this equipment to ensure safe operation at
rated specifications before placing equipment is service.
• Never use a unit that inspection indicates is defective.
Frequent and periodic inspections should be performed on
equipment in regular service. Frequent inspections are visual
examinations performed by operators or personnel trained in
safety and operation of this equipment and include observations
made during routine equipment operation. Periodic inspections
are thorough inspections conducted by personnel trained in the
safety, operation and maintenance of this equipment. Inspection
intervals depend upon the nature of the critical components of the
equipment and the severity of usage.
Careful inspection on a regular basis will reveal potentially
dangerous conditions while still in the early stages, allowing
corrective action to be taken before the condition becomes
dangerous.
Deficiencies revealed through inspection, or noted during
operation, must be reported to designated personnel instructed in
safety, operation and maintenance of this equipment. A
determination as to whether a condition constitutes a safety
hazard must be decided, and the correction of noted safety
hazards accomplished and documented by written report before
placing the equipment in service.
Records and Reports
Inspection records, listing all points requiring periodic inspection
should be maintained for all load bearing equipment. Written
reports, based on severity of service, should be made on the
condition of critical parts as a method of documenting periodic
inspections. These reports should be dated, signed by the person
who performed the inspection, and kept on file where they are
readily available for authorized review.
Wire Rope Reports
Records should be maintained as part of a long-range wire rope
inspection program. Records should include the condition of wire
rope removed from service. Accurate records will establish a
relationship between visual observations noted during frequent
inspections and the actual condition of wire rope as determined by
periodic inspections.
Frequent Inspections
For equipment in continuous service, frequent inspections should
be made by operators at the beginning of each shift.
1.
OPERATION. Check manipulator arm for full range of
motion, smooth operation and ease of movement. Locate the
source of any binding or rough operation and repair. Make
sure all controls function properly.
MHD56162 - Edition 2
INSPECTION
2.
WIRE ROPE. Lower load and visually inspect all wire rope.
Refer to "Wire Rope Inspection Procedure" on page 14.
Inspect for wear and damage indicated by distortion of wire
rope such as kinking, "birdcaging," core protrusion, main
strand displacement, corrosion, broken, or cut strands. If
damage is evident, do not operate unit until the discrepancies
have been reviewed and inspected further by personnel
instructed in the operation, safety, and maintenance of this
unit.
• The full extent of wire rope cannot be determined by visual
inspection. At any indication of wear inspect the wire rope in
accordance with instructions in "Periodic Inspection."
3.
WIRE ROPE CLAMP. Inspect wire rope clamp at handling
device lifting eye for tightness of clamp, security of thimble,
and load hook for proper latching. Ensure wire rope free end
is capped.
4.
THREADED CONNECTIONS. Check all threaded
connections for tightness. Tighten or replace if necessary.
5.
OVERHEAD MOUNTING. If any loose or missing
hardware is detected, tighten or replace.
6.
TUBING. Inspect tubing and fittings for cracks, cuts or
leaks. Replace if any are detected.
7.
PULLEY SYSTEM. Inspect pulleys for cracks, nicks, wear
or damage. Replace if necessary.
8.
INTERLOCK (Safety Circuit). Test operation with no load.
Raise empty handling device to the "UP" stop. With "UP"
lever depressed for 3 to 4 seconds (to simulate load), actuate
clamp/unclamp or vacuum/blowoff circuit. Clamp or blowoff
should not function. Refer to "OPERATION" section,
'Interlock' for adjustment instructions.
9.
AIR SYSTEM. Visually inspect all connections, fitting,
hoses and components for indication of air leaks. Repair any
leaks found.
Frequency of periodic inspection depends on the severity of
usage:
NORMAL
yearly
Disassembly may be required for HEAVY or SEVERE usage.
Keep accumulative written records of periodic inspections to
provide a basis for continuing evaluation.
Inspect all the items in "Frequent Inspection". Also inspect the
following:
1.
FASTENERS. Check all rivets, split pins, capscrews and
nuts. Replace if missing or tighten if loose.
2.
ALL COMPONENTS. Inspect for wear, damage,
deterioration, deformation and cleanliness. If external
evidence indicates the need, disassemble. Check bearings,
pulleys, and plates. Replace worn or damaged parts. Clean,
lubricate and reassemble.
WARNING
Periodic Inspection
HEAVY
SEVERE
semiannually
quarterly
13
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