(1 to 12 month intervals) – The periodic inspection procedure is intended to determine the need for repair or replacement of components to keep the machine in proper operating condition. It includes those items listed for daily inspections as well as, but not limited to, structural defects, excessive wear, and hydraulic or air leaks.
Inspection records of the inspected crane shall be maintained monthly on critical items in use, such as brakes, crane hooks, and ropes. These inspection records should include, the date of inspection, the signature of the person who performed the inspection, and the serial number, or other identifier. This inspection record should be kept readily available for review. The manufacturer's maintenance and inspection records, forms/checklist, or equivalent should be used.
Inspect the entire crane for structural damage. Be careful to check for distortion
or cracks in main frame, outrigger assemblies, and structural attachments of
the upperworks to the carrier.
Inspect all welded connections for cracks. Inspect the main chords and lacings and other structural items for paint flaking and cracking which may indicate potential failure, as well as for dents, bends, abrasions, and corrosion. Check hydraulic booms for bending, side sway, or droop.
Check for deformed, cracked, or corroded members in the load/stress bearing structure. Magnetic particle or other suitable crack detecting inspection should be performed at least once each year by an inspection agency retained by the owner.
Inspection reports should be requested and retained in the crane file.
Inspect cracked or worn sheaves and drums.
Inspect for worn, cracked, or distorted parts such as: pins, bearings, shafts, gears, rollers, locking devices, hook roller brackets, removable outrigger attachments lugs, and welds.
Inspect for excessive wear on brake and clutch system parts, linings, pawls, and ratchets.
Inspect all indicators, including load and boom angle indicators, for proper operation and calibration.
Inspect all power plants for proper operation.
Inspect for excessive wear on drive sprockets and/or chain stretch.
Inspect for correct action of steering, braking, and locking devices.
Check that the counterweight is secure.
Check that the identification number is permanently and legibly marked on jibs, blocks, equalizer beams, and all other accessories.
Inspect all hydraulic and pneumatic hoses, fittings, and tubing. Any deterioration of any system component should cause the
inspector to question whether further use would constitute a safety hazard. Conditions, such as the following, require replacement of the part in question:
Any evidence of oil or air leaks on the surfaces of flexible hoses or at the point at which the hose in question joins the metal end couplings.
Any abnormal deformation of the outer covering of hydraulic hose, including any enlargement, local or otherwise.
Any leakage at connections which cannot be eliminated by normal tightening.
Any evidence of abrasive wear that could have reduced the pressure retaining capabilities of the hose or tube effected. The cause of the rubbing or abrasion must be immediately eliminated.