GENERAL REPAIRS AND MAINTENANCE
REFERENCE ASME B30.5a AND OSHA 1910.180 FOR COMPLETE MAINTENANCE AND REPAIR REQUIREMENTS
A preventative maintenance program should be established based on this section and all replacement parts should be obtained from AutoCrane Company. For replacement parts contact your local authorized distributor.
Place crane where it will cause the least interference with other equipment or operations.
Verify all controls are in the "off" position and all operating features secured from inadvertent motion by brakes, pawls, or other means.
The means for starting the crane shall be rendered inoperative.
The boom should be secured in place before maintenance.
Relieve hydraulic oil pressure from all hydraulic circuits before loosening or removing hydraulic components.
Warning or "OUT OF ORDER" signs shall be placed on all crane controls.
After adjustments and repairs have been made, the crane shall not be returned to service until all guards have been reinstalled, trapped air removed from hydraulic system (if required), safety devices reactivated, and maintenance equipment removed.
ADJUSTMENTS AND REPAIRS
Any hazardous conditions disclosed by the inspection requirements shall be corrected before operation of crane is resumed. Only designated personnel shall do adjustments and repairs.
Adjustments shall be maintained to assure correct functioning of components, the following are examples:
Functional operating mechanism.
Repairs or replacements shall be provided as needed for operation, the following are examples:
Critical parts of functional operating mechanisms which are cracked, broken, corroded, bent, or excessively worn.
Critical parts of the crane structure which are cracked, bent, broken, or excessively corroded.
Crane hooks showing cracks, damage, or corrosion shall be taken out of service. Repairs by welding are not recommended.
If bleeding the hydraulic system is required, run each crane function until smooth operation of that particular function is noticeable.
All moving parts of the crane, for which lubrication is specified, should be regularly lubricated per the manufacturer's recommendations and procedures. Reference Lubrication and Maintenance Schedule in this manual.
No precise rules can be given for determination of the exact time for replacement of rope, since many variable factors are involved.
Conditions such as the following shall be reason for questioning continued use of the rope or increasing the frequency of inspection:
In running ropes, six randomly distributed broken wires in one lay or three broken wires in one strand in one lay.
One outer wire broken at the contact point with the core of the rope structure and protrudes or loops out of the rope structure. Additional inspection of this section is required.
Wear of one third of the original diameter of the outside individual wire.
Kinking, crushing, bird caging, or any other damage resulting in distortion of the rope structure.
Evidence of any heat damage from any cause.
Reduction from nominal diameter of more than 1/64 in. (0.4mm) for diameters up to and including 5/16 in. (8 mm), 1/32 in. (0.8 mm) for diameter 3/8 in. (9.5 mm) to and including 1/2 in. (13 mm), 3/64 in. (1.2 mm) for diameter 9/16 in. (14.5 mm) to and including 3/4 in. (19
. 1/16 in. (1.6 mm) for diameter 7/8 in. (22
to and including 11/8 in. (29 mm), 3/32 in.