14
Inspection Classification
To maintain continuous and satisfactory operation, a regular inspection procedure must be initiated to replace worn or
damaged parts before they become unsafe.
INSPECTION Classification
Inspection intervals must be determined by individual application and are based on the type of service to which the hoist will be subjected and the
degree of exposure to wear, deterioration or malfunction of the critical components.
The type of service to which the hoist is subjected can be classified below.
- Normal Service – service that involves operation with randomly distributed loads within the rated load limit, or uniform loads less that 65% of
rated load for not more than 15% of the time.
- Heavy Service – service that involves operation within the rated load limit which exceeds normal service.
- Severe Service – service that involves normal or heavy service with abnormal operating conditions.
The three general classifications are herein designated as DAILY, FREQUENT and PERIODIC, with respective intervals between inspections as
defined below.
DAILY Inspection – visual examinations by the operator or other competent person before daily operation.
FREQUENT Inspection – visual examinations by the competent person with intervals per the following criteria:
- Normal service – monthly
- Heavy service – weekly to monthly
- Severe service – daily to weekly
Records are not required.
PERIODIC Inspection – disassembly/reassembly inspection by the competent person with intervals per the following criteria:
- Normal service – yearly
- Heavy service – semiannually – 6 months
- Severe service – quarterly – 3 months
Records are to be kept for continuing evaluation of the condition of the hoist.
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