Elliott Digger Derrick, Operation & Maintenance Manual, Page: 29 / 376

Responsibilities ANSI/ASSE A10.31 EEC-0168 V1.0
Responsibilities per
ANSI/ASSE A10.31
and that report and a record of the correction shall be maintained for a period
of five years, or as required by applicable regulations.
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.
D. Maintenance: The owner shall determine maintenance and frequency of
maintenance in accordance with the manufacturer’s recommendations.
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.
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.
E. 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 manufacturer’s
design safety factors, whichever is greater. Should the original manufacturer no
longer exist, an equivalent entity may approve required modification.
1. Alternations: Altering or disabling the function of safety devices, guards or
interlocks, if so equipped is prohibited.
F. Weight Distribution: The owner shall specify to the install 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 the axle loads of the fully-loaded