Maintenance, Inspection and Thorough Examination of Mobile Cranes

� Non destructive testing;
� Dimensional measurement;
� Torque measurement;
� Bearing play measurement;
� Pressure and flow measurement (hydraulic and pneumatic).
All test and measuring equipment should be marked with a unique identification
number and entered on an asset register to ensure that the equipment can be
monitored and tracked throughout its life. Equipment should be stored in a dry and
secure location.
13.15 Calibration
All test and measuring equipment should be subjected to periodic calibration to
nationally traceable standards, marked with the calibration expiry date and records
kept of the calibration. The calibration interval should be set taking into account
manufacturer’s guidance together with the frequency and conditions of use.
13.16 Hand Tools
All hand tools should be checked and maintained by the user at regular intervals to
ensure that they continue to function safely. Hand tools should also be checked at
regular intervals by the supervisor.
13.17 Power Tools
Maintenance personnel should have access to adequate power tools to enable them
to carry out maintenance tasks safely and efficiently. These tools should be checked
and maintained at regular intervals to ensure that they continue to function safely.
Electric power tools are required to be checked before each use by the user and
more formally (PAT tested) at regular intervals to ensure that they remain safe. In
general power tools used on construction sites should be PAT tested at a maximum
of three monthly intervals, whilst those used in a workshop or permanent
establishment should be tested every six to twelve months. This will include chargers
and inverters for cordless tools.
NOTE: Further advice on the maintenance and testing of electrical power tools is given in
HS(G) 107 - Maintaining portable and transportable electrical equipment.
13.18 Welding Facilities
Before undertaking welding on structural components, the crane manufacturer must
be consulted,
Welding on structural components should only be carried out by trained competent
personnel working to welding procedures approved by the mobile crane
manufacturer or following a full engineering assessment by a competent engineer.
Welding should be carried out undercover wherever possible and arrangements
should be made to protect welders and other personnel from arc flashes and welding
fumes.
Welding equipment should be regularly checked, maintained and calibrated as
appropriate. Consumables should be stored in a secure dry area.
Weld repairs should be subjected to full visual, and where appropriate NDT
inspection.
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