Memorandum - NHTSA
Memorandum - NHTSA Memorandum - NHTSA
Iv-35 lift in the host vehicle as well as how to installkonnect waming signals, platform illumination lamps, the 8 interlocks included in the Final Rule, and the control unit and independent power switch unit. The installation instructions are to include diagnostic checks to ensure that the system is properly installed in the vehicle. Test Conditions and Procedures 67.0) This section includes detailed performance test procedures and specifies the test devices that a re necessary to perform the tests. Test devices include: Test pallet and load (S7.1.l) - The test palled consists of a rectangular steel plate with sides that measure between 660 mm (26 in) and 686 mm (27 in) which is used to accommodate the standard load. The standard load for public lifts is 272 kg (600 lb). This is in line with Access Board and FTA guidelines, which also apply to public use lifts. The standard load for private lifts is the load specified by the manufacturer or 18 L kg (400 lb) whichever is greater. SAE, which also applies to private use lifts, specific:, a standard load of 272 kg (600 lb). Due to public comment and the fact that we apply lesser requirements to private use lifts in other areas, we decided to allow the standard load for private use lifts to be the load specified by the manufacturer or 400 lb whicheyyer is greater. This will allow lower capacity lifts designed for children, etc. to continue tu exist. Wheelchair test device (S7.1.2) - The test device is an unloaded power wheelchair whc Ise size is appropriate for a 95'h percentile male. A wheelchair used for the test device mu st have a cross-braced steel frame, a sling seat, a belt drive, detachable/adjustable footrests that adjust within a specific range, pneumatic rear wheels with a specific diameter, pneumatic front wheels with a specific diameter, a specific wheelbase, a specific center of gravity location and a specific mass. The wheelchair test device is used for the dynam1.c test of the wheelchair retention device and inner roll stop as well as to simulate occupancy of surfaces during the threshold waming system test and some interlock tests.
W-36 e Clearance test block (S7.1.3) - The test block is made of a rigid material and is 16 x 16 x 100 mm (0.625 x 0.625 x 4.0 in) with all comers having a 1.6 mm (0.0625 in radius. 1'he test block is used to check gaps, transitions and openings relative to the platform surfac :e for maximum size. e Test device for simulating platform occupancy (S7.1.4) - Platform occupancy is simul; ted using a 151 x 152 x 305 mm (6 x 6 x 12 in) rigid box having a weight of 22.7 kg (50 11'1). The device is employed while testing the interlock described in S6.10.2.3, which prevc nts the platform from stowing while occupied. Performance tests include: a Slip Resistance test (S7.2) - Assures that the coefficient of friction is above a specified minimum to prevent occupants from slipping on the platform. a Environmental test (S7.3) - Assures that components and hardware are resistant to corrosion. e Threshold waming signal test (S7.4) - Tests the operation of the threshold warning system which is actuated when one front wheel of the wheelchair test device is on the threshold area and the lift platform is greater than 25 mm (1 in) below the vehicle floo reference plane. e Test to determine occupancy of outer barrier and interlock function (S7.5) - This test determines compliance with two interlock requirements (S6.10.2.5 and S6.10.2.6). It assures that the platform stops if the wheelchair retention device is not deployed and tile platform is greater than 76 mm (3 in) off of the ground. In the cases where the wheelchair retention device is in the form of an outer barrier, it assures that the outer barrier will not deploy when occupied by portions of the passenger's body or mobility I Test to determine occupancy of inner roll stop and interlock function (S7.6) - This test assures that the platform stops if the inner roll stop does not deploy when specified. It also assures that the inner roll stop will not deploy when occupied. Wheelchair retention device impact test (S7.7) - This is a dynamic test using the wheelchair test device, which measures the wheelchair retention device's ability to keep a wheelchair entirely on the platform surface. lid.
- Page 1 and 2: Subject: From: To: U.S.Department o
- Page 3 and 4: TABLE OF CONTENTS Summary..........
- Page 5 and 6: s-2 The annual number of persons in
- Page 7 and 8: 11. BACKGROUND 11- 1 Guidelines per
- Page 9 and 10: 11-3 and strength; control panel le
- Page 11 and 12: 111-2 Generally, there is very litt
- Page 13 and 14: 111-4 Table 111-1 Preliminary Natio
- Page 15 and 16: 111-6 The NEISS database lacks the
- Page 17 and 18: 111-8 Public Transit & Paratransit
- Page 19 and 20: w-2 identifying the relevant lift c
- Page 21 and 22: IV-4 MEASURE RED FLASHING BEACON OR
- Page 23 and 24: IV-6 Acceleration is to be measured
- Page 25 and 26: IV-8 FIGURE IV-2 :i a la Y t Permir
- Page 27 and 28: IV-10 and vehicle size. This requir
- Page 29 and 30: v-12 7. Prepare test block fnction
- Page 31 and 32: IV-14 Gaps, Transitions and Opening
- Page 33 and 34: Figure m-3 Allowable transition dim
- Page 35 and 36: IV-18 sliding or being driven over
- Page 37 and 38: v-20 traveling too fast, in the for
- Page 39 and 40: WC Retention Overload Test 67.13) I
- Page 41 and 42: IV-24 The lift is raised to the flo
- Page 43 and 44: N-26 (2 square inches) applicator a
- Page 45 and 46: N-28 sufficient to adequately illum
- Page 47 and 48: IV-30 lack of follow-up training. N
- Page 49 and 50: IV-32 16. Backup Operation (S6.9) -
- Page 51: IV-34 This “looked but did not se
- Page 55 and 56: IV-38 Structural Integrity, to iden
- Page 57 and 58: IV-40 NHTSA assumes that the large,
- Page 59 and 60: V. BENEFITS v-1 Serious injuries an
- Page 61 and 62: v-3 retention strength test, CG and
- Page 63 and 64: v-5 objective terms which should le
- Page 65 and 66: VI-2 subject to the ADA requirement
- Page 67 and 68: VI-4 averaged 35,000 units per year
- Page 69 and 70: VI-6 In order to make an estimate o
- Page 71 and 72: Cost Estimates VI-8 New Lift Hardwa
- Page 73 and 74: VI- 10 close a circuit and send a s
- Page 75 and 76: VI-12 FMVSS No. 141 Lift Certificat
- Page 77 and 78: VI- 14 Total Cost for Public-Use Li
- Page 79 and 80: VII. LEADTIME VII-1 Since the lift-
- Page 81 and 82: VIII-2 Table VIII-1 SUMMARY OF SBA
- Page 83 and 84: VIII-4 many private transit bus ope
- Page 85 and 86: VIII-6 Many hundreds of small busin
- Page 87 and 88: VIII-8 adaptive driving equipment f
- Page 89 and 90: VIII-10 Facts Book, 7.2 percent of
- Page 91 and 92: A- 1 REFERENCES 1. Americans with D
- Page 93 and 94: A-3 25. A Directory of UMTA-Funded
- Page 95 and 96: Figure 1 Dirgm Showing the Part8 of
- Page 97 and 98: 5 Figure 2. Isometric View of Platf
- Page 99 and 100: PLATFORM DEFLECTION ANGLE DEFLECTIO
- Page 101 and 102: .. Lln UP, OUTER BARRIER UP LIFT MI
W-36<br />
e Clearance test block (S7.1.3) - The test block is made of a rigid material and is 16 x 16 x<br />
100 mm (0.625 x 0.625 x 4.0 in) with all comers having a 1.6 mm (0.0625 in radius. 1'he<br />
test block is used to check gaps, transitions and openings relative to the platform surfac :e<br />
for maximum size.<br />
e Test device for simulating platform occupancy (S7.1.4) - Platform occupancy is simul; ted<br />
using a 151 x 152 x 305 mm (6 x 6 x 12 in) rigid box having a weight of 22.7 kg (50 11'1).<br />
The device is employed while testing the interlock described in S6.10.2.3, which prevc nts<br />
the platform from stowing while occupied.<br />
Performance tests include:<br />
a Slip Resistance test (S7.2) - Assures that the coefficient of friction is above a specified<br />
minimum to prevent occupants from slipping on the platform.<br />
a Environmental test (S7.3) - Assures that components and hardware are resistant to<br />
corrosion.<br />
e Threshold waming signal test (S7.4) - Tests the operation of the threshold warning<br />
system which is actuated when one front wheel of the wheelchair test device is on the<br />
threshold area and the lift platform is greater than 25 mm (1 in) below the vehicle floo<br />
reference plane.<br />
e Test to determine occupancy of outer barrier and interlock function (S7.5) - This test<br />
determines compliance with two interlock requirements (S6.10.2.5 and S6.10.2.6). It<br />
assures that the platform stops if the wheelchair retention device is not deployed and tile<br />
platform is greater than 76 mm (3 in) off of the ground. In the cases where the<br />
wheelchair retention device is in the form of an outer barrier, it assures that the outer<br />
barrier will not deploy when occupied by portions of the passenger's body or mobility I<br />
Test to determine occupancy of inner roll stop and interlock function (S7.6) - This test<br />
assures that the platform stops if the inner roll stop does not deploy when specified. It<br />
also assures that the inner roll stop will not deploy when occupied.<br />
Wheelchair retention device impact test (S7.7) - This is a dynamic test using the<br />
wheelchair test device, which measures the wheelchair retention device's ability to keep a<br />
wheelchair entirely on the platform surface.<br />
lid.
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