California Code of Regulations › Title 13 - Motor Vehicles › Division 2 - Department of the California Highway Patrol › Chapter 4 - Special Equipment › Article 15 - Wheelchair Lifts › Section 1093 - Durability Requirements

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Wheelchair lifts shall meet the following requirements when
					 attached to a fixture that simulates a bus installation and when supplied by
					 electric, hydraulic, air, or other power of an output equal to that normally
					 available on the bus. Only one representative production unit of each model is
					 required to be tested for certification with all tests conducted on the same
					 unit in the following order without any repairs or maintenance during the test
					 other than permitted in subsection (h).
(a) Vertical Cycling--The lift platform shall
				  be operated up and then down through its maximum vertical operating range for
				  15,600 cycles with a load of 270 kg (595 lb) for the first 600 cycles and 170
				  kg (375 lb) or the remaining cycles. The ambient temperature for the first half
				  of the cycles in each of these tests shall be at least +43 deg C (+110 deg F).
				  The test may be continuous or separated into groups of not less than 10 cycles
				  with nonoperating periods of not more than 1 min between each cycle in the
				  group. The platform shall raise and lower smoothly throughout the test with
				  vertical and horizontal accelerations not exceeding 3.0
				  m/s2 (0.3g) as measured during the first 5 cycles
				  and last 5 cycles.
(b) Deployment
				  Cycling--The lift platform shall be deployed and stowed for 10,000 cycles. The
				  ambient temperature for the first half of the cycles shall be at least +43 deg
				  C (+110 deg F). The test may be continuous or separated into groups and may
				  have nonoperating periods between cycles as specified in preceding subsection
				  (a).
(c) Low Temperature
				  Operation--After 5 h of exposure to a temperature not higher than -7 deg C (+20
				  deg F), the wheelchair lift shall be operated through 10 unloaded cycles of
				  deploying, lowering, raising, and stowing at the exposure temperature. Each
				  cycle shall be separated by at least a 30 min cooling period at a temperature
				  not higher than -7 deg C (+20 deg F).
(d) Self-Damage--The controls shall be held
				  in operating position for 5 s after the unloaded lift meets resistance to its
				  travel under each control position with any limit switches deactivated. The
				  test shall be performed twice at each position of deploy, stow, full up at
				  floor level and full down at ground level.
(e) Proof Load--With the lift stationary at
				  its raised position, the platform shall be loaded with 410 kg (900 lb)
				  uniformly distributed around the center of the platform within an area not
				  exceeding a 60 x 60 cm (24 x 24 in.) square.
(f) Power and Equipment Failure--A failure of
				  power, chain, cable, or hydraulic hose that allows the lift to deploy or the
				  platform to lower shall be simulated. The wheelchair lift shall comply with
				  preceding Section
				  1092(d) during
				  this test.
(g) Visual
				  Inspection--At the conclusion of the tests described in subsections (a) through
				  (e), with all loads removed, the parts of the wheelchair lift shall show no
				  condition of fracture, permanent deformation, extreme wear, perceptible
				  impairment, or other deterioration that would be hazardous to the occupant
				  operator.
(h) Maintenance--During
				  the durability tests, the inspection, lubrication, maintenance, and replacement
				  of parts (other than bulbs and fuses) may be performed only as specified in the
				  owner's manual for the lift and at intervals no more frequent than specified in
				  the manual. Maintenance specified for certain time intervals shall be performed
				  during the vertical cycling and deployment cycling tests at a number of cycles
				  that is in the same proportion to the total cycles as the maintenance period is
				  to 36 months.
Note: Authority cited and Reference: Sections
						31401 and
						34501,
						Vehicle Code.