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7.3.2 ADJUSTMENTS AND REPAIRS
1. Any hazardous conditions disclosed by the inspection requirement shall be corrected before operation of crane is
resumed.
2. Adjustments shall be maintained to assure correct of functioning of components, the following are examples:
a. Function operating mechanism.
b. Safety devices.
c. Control systems.
3. Repairs or replacements shall be provided as needed for operation, the following are examples:
a. Critical parts of functional operating mechanisms which are cracked, broken, corroded, bent, or
excessively worn.
b. Critical parts of the crane structure which are cracked, bent, broke, or excessively corroded.
c. Crane hooks showing cracks, damage, or corrosion shall be taken out of service. Repairs by welding are
recommended.
4. If bleeding the hydraulic system is required, run each crane function until smooth operation of that particular
function is noticeable.
7.3.3 LUBRICATION
All moving parts of the crane, for which lubrication is specified, should be regularly lubricated per the manufacturer's
recommendations and procedures.
7.3.4 ROPE REPLACEMENT
No precise rules can be given for determination of the exact time for replacement of rope, since many variable factors are
involved.
Replacement rope shall have a strength rating at least as great as the original rope furnished or recommended by Auto
Crane. A rope manufacturer, Auto Crane, or a qualified person shall specify any deviation from the original size, grade, or
construction.
Conditions such as the following shall be reason for questioning continued the rope or increasing the frequency of
inspection:
1. In running ropes, six randomly distributed broken wires in one strand in one lay.
2. 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.
3. Wear of one third of the original diameter of the outside individual wire.
4. Kinking, crushing, bird caging, or any other damage resulting in distortion of the rope structure.
5. Evidence of any heat damage from any cause.
6. Reduction of nominal diameter of more than:
a. 1/64" (0.4mm) – for diameters up to and including 5/16" (8mm)
b. 1/32" (0.8mm) – for diameters 3/8" (9.5mm) through and including 1/2" (13mm)
c. 3/64" (1.2mm) – for diameters 9/16" (14.5mm) through and including 3/4" (19mm)
d. 1/16" (1.6mm) – for diameters 7/8" (22mm) through and including 1-1/8" (29mm)
e. 3/32" (2.4mm) – for diameters 1-1/4" (32mm) through and including 1-1/2" (38mm)
7. In standing ropes, more than two broken wires in one lay in sections beyond end connections or more than one
broken wire at an end connection.
7.3.5 ROPE INSTALLATION AND MAINTENANCE
1. Rope should be stored to prevent damage and deterioration.
2. Unreeling or uncoiling of rope shall be done as recommended by the rope manufacturer and with care to avoid
kinking or inducing twist.
3. Before cutting a rope, seizing shall be placed on each of the place where the rope is to be cut to prevent unlaying
of the strands. On pre-formed rope, one seizing on each side of the cut is required. On non-preformed ropes of
7/8" (22mm) or smaller, two seizings on each side of the cut are required. For non-preformed rope 1 in. (25mm)
diameter or larger, three seizings on each side of the cut are required.
4. During installation care should be exercised to avoid dragging of the rope in the dirt or around objects that will
scrape, nick, crush, or induce sharp bends in it.
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