Note: | General requirements relating to preproof load tests for all cranes are located in WAC 296-155-53200. |
(a) Functional motion test must be at crane manufacturer's rated load. Each test must include:
(i) Load hoisting and lowering;
(ii) Jib (boom) hoisting and lowering, or trolley travel;
(iii) Slewing motion;
(iv) Brakes and clutches;
(v) Limit, locking, and safety devices.
(b) The functional motion test listed in (a) of this subsection must continue until all controls, drives, and braking systems have been engaged and have functioned per the crane manufacturer's specifications.
(c) Order in which tests of self-erecting tower cranes are to be performed is as follows:
(i) Functional motion test without rated load;
(ii) Functional motion test at crane manufacturer's rated load. These tests may be combined with test of base structural support or foundation system given in (a) of this subsection.
(d) During functional motion tests, the crane's base structural support or foundation system must be visually checked by the accredited crane certifier. If any part of the crane's base structural support or foundation system shows excessive visual displacement, visual distress, or audible distress, then the lifted load must be lowered at hoist creep speed and all crane operations are to cease. An evaluation must then be made by the accredited crane certifier.
(3) Annual proof load testing of self-erecting tower cranes.
(a) Annual proof load testing. After the crane has passed the visual and operational tests, the accredited crane certifier must ensure a proof load test is conducted and must be performed according to the manufacturer's recommendations. This test must be documented on the form or in the format approved by the department. A copy of this completed form and inspection worksheets must be sent to the department within 10 working days upon completion of the examination.
(b) The structural support or foundation examination during proof load test:
(i) This test must be conducted with the rated load placed at maximum radius permitted by site conditions. The superstructure must be rotated through 360 degrees with 5-minute stops at each outrigger position. If any part of the support structure becomes displaced or distressed, all crane operations must stop until an evaluation is made by a qualified person.
(ii) For rail-mounted cranes, a load test must be conducted with the jib in the position causing maximum loading on one wheel or bogie. The test must comprise traveling the entire length of the runway, then returning with the same load on the other rail. If a sleeper or support becomes displaced or damaged, crane operations must stop until an evaluation is made by a qualified person or until track ballast has been reset, or repairs made and a satisfactory test performed.
(c) Self-erecting tower crane hoist load limit switches must be set in accordance with the manufacturer's specifications using specified certified weights. Procedure is to be verified by the accredited crane certifier.
(d) Setting of hoist load limits must be documented on the form provided by the department. A copy of the completed form and inspection worksheets must be sent to the department within 10 days upon completion of the examination.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060. WSR 16-09-085, § 296-155-53208, filed 4/19/16, effective 5/20/16. Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060,
49.17.400,
49.17.410,
49.17.420,
49.17.430, and
49.17.440. WSR 08-22-080, § 296-155-53208, filed 11/4/08, effective 1/1/10.]