1. Initial Inspection
   1. New and reinstalled lifters shall be inspected by a designated person prior to initial use to verify compliance with applicable provisions of this volume. Lifters manufactured by TANDEMLOC, Inc. are proof tested prior to delivery of the lifter, the user must confirm this by reviewing the test date plate on the lifter and the proof test certificate.
   2. Altered, repaired, or modified lifters shall be inspected by a designated person. The inspection may be limited to the provisions affected by the alteration, repair, or modification, as determined by a
      qualified person.
2. Inspection Intervals
   Inspection procedure for lifters in regular service is divided into two general classifications based upon the intervals at which inspection should be performed. The intervals, in turn, are dependent upon the critical components of the lifters and the degree of their exposure to wear, deterioration, or malfunction. The two general classifications are herein designated as frequent and periodic, with respective intervals between inspections as defined below.
1. Every Lift Inspection: Visual examination by the operator before and during each lift made by the lifter.
2. Frequent Inspection: Visual examinations by the operator or other designated persons with records are not required.
   1. Normal service - monthly.
   2. Heavy Service - weekly to monthly.
   3. Sever service - daily to weekly.
   4. Special or infrequent service - as recommended by a qualified person before and after each occurrence.
3. Periodic Inspection: Visual inspection by a qualified person making records of apparent external conditions to provide the basis for a continuing evaluation. An external code mark on the lifter is an acceptable identification in lieu of records.
1. Normal service for equipment in place - yearly.
2. Heavy service [as in (a) above, unless external conditions indicate that disassembly should be done to permit detailed inspection] - semiannually.
3. Severe service [as in (b) above] - quarterly.
4. Special or infrequent service - as recommended by a qualified person before the first such occurrence and as directed by the qualified person for any subsequent occurrences.