1. Load Test
Every suspended working platform has to be further load tested and thoroughly examined by acompetent examiner when the suspended working platform has subsequently undergone
Re-erection, including erection following its removal to a different location
Adjustment to any member of the suspended working platform, being an adjustment whichinvolves changes in the arrangements for anchoring or supporting the suspended working platform; or
Failure or collapse. A certificate in an approved form stating that the suspended working platform is in safe working order shall be obtained from the competent examiner after theexamination.
The suspended working platform should be subjected to a proof load of 110% of the working load limit (WLL). Functional/operational test on the following items should then be carried out:
All mechanisms involving the lifting, lowering, slewing, transversing, luffing and telescoping
The service brake, emergency stop and the manual descend facility
2. Preventive Maintenance
In general, a weekly inspection should cover but not limited to the following items, if applicable:
(a) Electrical System and Components. The following electrical components of the suspended working platform should be visually checked to ensure that they are properly protected and without any patent defect: - earth wiring at the source of electricity supply;
Connections to the source of electricity supply
Push buttons, emergency stop buttons, selector switches, etc.
(b) Lifelines and Safety Belts
All lifelines should be checked to ensure that they are properly and independently secured to permanent structures of the building and that they do not pass over sharp edges.
The lifelines should also be checked for the presence of any signs of excessive wear and tear, deformation or distortion.
Safety belts/safety harnesses together with their arresting devices should be checkedto ensure that they are in good condition.
(c) Anchorage and Support. Every component for fixing or anchoring the suspended working platform including roof fixing should be checked to ensure that they are in proper position, securely tightened and in good condition. Typical components requiring attention include:
Bolts and nuts
Tying in rope
The structure for supporting the suspended working platform should also be checked to seewhether there are any visual cracks, deformation, corrosion or dislocation. The structure usuallycomes under one of the following categories
Counterweighted suspension beams
Source: MaintainX (Community Member)