APPENDIX B
B-4 Terex South Dakota, Inc. Appendix B
APPENDIX - B
8.2.5 Post Event Inspection or Test. After any reported event during which structural members of a
digger derrick are suspected of being subjected to loading of stresses in excess of design stress such as
after an accident involving overturning of the digger derrick or application of unintended external
mechanical or electrical forces to the digger derrick, the digger derrick shall be removed from service
and subjected to the applicable periodic inspection requirements of 8.2.4. In addition to the periodic
inspection, supplemental non-destructive examination procedures or other tests to assist in detecting
possible structural damage to the digger derrick may be required. All damage items shall be replaced or
repaired before the unit is returned to service. Return to service shall be approved by a qualified person.
8.3 Inspection Records and Test Records.
8.3.1 Frequent. Items to be inspected shall be designated to the operator or other authorized person
making frequent inspections. Records of frequent inspections need not be made. However, where a
safety hazard is found, it shall be reported in writing to a person responsible for the corrective action and
that report and a record of the correction shall be maintained for a period of five years, or as required by
applicable regulations.
8.3.2 Periodic. Written or appropriately archived electronic, dated and signed reports and records shall
be made of periodic inspections and tests and retained for a period of five years or as required by
applicable regulations.
8.4 Maintenance. The owner shall determine maintenance and frequency of maintenance in accordance
with the manufacturer’s recommendations.
8.4.1 Maintenance Training. The owner shall train their maintenance personnel in inspection and
maintenance of the digger derrick in accordance with the manufacturer’s recommendations and Section
8.
8.4.2 Welding. Welding repairs of components or welds, designated as critical in the manufacturer’s
manual, shall be made in accordance with the manufacturer’s procedure and ANSI/AWS D1.1 or ANSI/
AWS D1.2. Should the original manufacturer no longer exist, an equivalent entity may determine the
required process.
8.5 Modifications. No modifications or additions that affect the stability, mechanical, hydraulic or electrical
integrity or the safe operation of the digger derrick shall be made without the written approval of the
manufacturer. If such modifications or changes are made, the capacity, operation and maintenance
instruction markings shall be changed accordingly. In no case shall the safety factors be reduced below
those specified in this standard or below the manufacturers design safety factors, whichever are greater.
Should the original manufacturer no longer exist, an equivalent entity may approve required modification.
8.5.1 Alterations. Altering or disabling the function of safety devices, guards or interlocks, if so
equipped, is prohibited.
8.6 Weight Distribution. The owner shall specify to the installer the payload and its distribution as well as
complete vehicle specifications when the owner supplies the vehicle. Changes in loading or additions made
to the mobile unit after the final acceptance that affect weight distribution shall meet applicable regulations
by governmental agencies. In no case shall axle loads of the fully loaded vehicle exceed the gross axle
weight ratings (GAWR) assigned by the manufacturer.
NOTE: Any change in weight distribution may adversely affect stability.
8.7 Transfer of Ownership. When a change in ownership of a digger derrick occurs, it shall be the
responsibility of the seller to provide the manufacturer's manual(s) for that digger derrick to the purchaser. It
is the responsibility of the purchaser to notify the manufacturer of the unit model, serial number and the
name and address of the new owner within 60 days. If the owner uses other entities as agents (e.g., brokers)
for the sale or the arrangement of a sale of a digger derrick(s), the owners or agents responsibilities under
this section continue.
8.8 Markings. The markings on the digger derrick shall not be removed, defaced or altered. All missing or
illegible markings shall be promptly replaced.
8.9 Parts. When parts or components are replaced they shall be identical in specification and function to the
original digger derrick parts or components or shall provide an equal or greater factor of safety.
8.10 Safety Bulletins. Owners shall comply with safety related bulletins as received from the manufacturer,
dealer or installer.
8.11 Manuals. The
owner shall ensure that the operating manual(s) is stored on the mobile unit.
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