APPENDIX B
A p p e n d i x B
T e r e x S o u t h D a k o t a , I n c .
B- 3
APPENDIX
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B
8.2.4 Periodic Inspection or Test.
An inspection of the mobile unit shall be performed at the intervals
defined in 8.2.2 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.
(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, as specified by the manufacturer.
(15) Legible and proper identification, operational and instructional markings.
(16) If the aerial device 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. Then
these components and system(s) shall be tested for compliance with the rating of the aerial device in
accordance with one of the applicable methods and procedures as outlined in Section 5.4.3 of this standard:
(a) If the aerial device is used for AC bare-hand work, the “in the field” tests outlined in 5.4.3.1 (10) (c)
may be relied upon when performed frequently, however the unit shall undergo an AC voltage test at lest
every three years in accordance with Table 2 criteria;
(b) If the aerial device is used for DC bare-hand work, the “in the field” tests outlined in 5.4.3.1 (10) (c)
may be relied upon when performed frequently, however the unit shall undergo an appropriate DC over
voltage test at least every three years;
(c) After repair or replacement of any component that crosses the insulating system(s), or the repair or
replacement of an insulating component(s),(e.g., hoses, leveling rods, boom coating, etc.), the unit shall
be dielectrically tested in accordance with Section 5.4.3;
(d) An insulated replacement boom shall be tested to ensure conformance to 5.3.3 by the supplier;
(e) Bare-hand work units shall be tested for the applicable unit rating in accordance with Table l (or
appropriate DC test for units used on direct current lines, see Appendix B) after any major repair to the
insulating boom or any insulating boom replacement. Major repair to the insulating boom shall include
resurfacing or repainting of the exterior or interior boom surfaces. The removal and subsequent
reinstallation of a gradient control device is not considered a “major repair” provided proper reinstallation
of the gradient control device is performed by a qualified person in accordance with the manufacturer’s
instructions.
(17) If the aerial device has upper controls equipped with high electrical resistance components and the
manufacturer so indicates, they shall be maintained as high electrical resistance components and should be
electrically tested per 5.4.3.6.
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.
