APPENDIX B
Appendix B Terex South Dakota, Inc. B-3
APPENDIX - B
(9) Perform functional test to include, but not limited to, the following:
(a.) Setup the digger derrick for operation, including outriggers.
(b.) Cycle the digger derrick functions through the complete range of motion from the lower
controls, except where operation through the complete range of motion would create a
hazard.
(c.) Check functionality of emergency controls.
Any suspected items shall be carefully examined or tested and a determination made by a qualified
person as to whether they constitute a safety hazard.
All unsafe items shall be replaced or repaired before use.
8.2.4 Periodic Inspection and Test. An inspection of the mobile unit shall be performed at one to
twelve month intervals depending upon its activity, severity of service and environment or as specifically
indicated below (these inspections shall include the requirements of 8.2.3):
(1) Structural members for deformation, cracks or corrosion.
(2) Parts, such as pins, bearings, shafts, gears, rollers, locking devices, chains, chain sprockets,
wire and synthetic ropes, and sheaves for wear, cracks or distortion.
(3) Hydraulic and pneumatic relief valve settings.
(4) Hydraulic system for proper oil level.
(5) Hydraulic and pneumatic fittings, hoses and tubing for evidence of leakage, abnormal
deformation or excessive abrasion.
(6) Compressors, pumps, motors and generators for loose fasteners, leaks, unusual noises or
vibrations, loss of operating speed and excessive heating.
(7) Hydraulic and pneumatic valves for malfunction and visible cracks in the external valve housing,
leaks and sticking spools.
(8) Visually inspect any vacuum prevention systems and verify function of such systems on digger
derricks that have a sheave height or platform height greater than 50 feet.
(9) Hydraulic and pneumatic cylinders and holding valves for malfunction and visible damage.
(10) Hydraulic and pneumatic filters for cleanliness and the presence of foreign material in the
system indicating other component deterioration.
(11) Electrical systems and components for deterioration or wear including those not readily visible
on a frequent inspection.
(12) Performance test of all boom movements.
(13) Condition and tightness of bolts and other fasteners, in accordance with the manufacturer’s
recommendation.
(14) Welds, in accordance with the manufacturer’s recommendation
(15) Legible and proper identification, operational and instructional markings.
(16) If the digger derrick is rated as an insulating device, the electrical insulating components and
system(s) shall be thoroughly inspected for lack of cleanliness and other conditions that
compromise insulation.
(17) If the digger derrick is rated as insulating, it shall be tested for compliance with the rating of the
digger derrick in accordance with one of the applicable methods and procedures as outlined in
Section 5.4.3.
(18) If the digger derrick is rated as insulating, it shall be dielectrically tested after repair or
modification of any component that crosses the insulating system(s) in accordance with Section
5.4.3.
(19) An insulating replacement boom shall be tested to ensure conformance to Section 5.4.2.
Any suspected items shall be carefully examined or tested and a determination made by a qualified
person as to whether they constitute a safety hazard. All unsafe items shall be replaced or repaired
before use.
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