INSPECTION, TESTING AND MAINTENANCE
GENERAL
13. Hydraulic and pneumatic pumps and motors
inspection.
A. loose bolts or fasteners
B. leaks at joints between sections
C. shaft seal leaks
D. unusual noises or vibrations
E. loss of operating speed
F. excessive heating of the fluid
G. loss of pressure
14. Hydraulic and pneumatic valves inspection
A. cracks in valve housing
B. improper return of spool to neutral position
C. leaks at spools or joints
D. sticking spools
E. failure of relief valves to attain or maintain
correct pressure setting
F. relief valve pressure shall be checked as
specified by the manufacturers
15. Hydraulic and pneumatic cylinders inspection.
A. drifting caused by fluid leaking across piston
B. rod seals leaking
C. leaks at welding joints
D. scored, nicked, or dented cylinder rods
E. damaged case (barrel)
F. loose or deformed rod eyes or connecting
joints
16. Hydraulic filters. Evidence of rubber particles
on the filter elements may indicate hose, "O"
ring, or other rubber component deterioration.
Metal chips or pieces on the filter may denote
failure in pumps, motors, or cylinders. Further
checking will be necessary to determine origin
of the problem before corrective action can be
taken.
17. Labels are to be in place and legible.
CRANES NOT IN REGULAR USE
18. A crane which has been idle for a period of
over one month or more, but not less than six
months, shall be given an inspection
conforming with the initial-regular- frequent
inspections
19. A crane which has been idle for a period of
over six months shall be given a complete
inspection conforming with the initial-regular-
frequent inspection requirements.
INSPECTION RECORDS
20. Dated records for periodic inspection should
be made on critical items such as brakes, crane
hooks, rope, hydraulic and pneumatic
cylinders, and hydraulic and pneumatic relief
pressure valves. Records should be kept
available to an appointed person.
OPERATIONAL TESTS
21. Prior to initial use, all new, altered, modified, or
extensively repaired cranes shall be tested for
compliance with the operational requirements
of this section, including functions such as the
following:
A. load lifting and lowering mechanisms
B. boom lifting and lowering mechanisms
C. boom extension and retraction mechanisms
D. swing mechanisms
E. safety devices
F. operating controls comply with appropriate
function labels
Operational crane test results shall be made
available to an appointed person.
RATED TEST LOAD
Prior to initial use, altered, modified, or
extensively repaired cranes shall be load
tested by or under the direction of an
appointed person.
2-11.0.0
05/23/2003
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