Note: Nothing in this
standard supercedes applicable laws and regulations.
Note: In the event of
conflict between the English and domestic language, the English
language shall take precedence.
Purpose. To test and
validate the performance, strength, and durability of wheel
changing equipment.
Applicability. This
procedure applies to all passenger cars, light-duty/heavy-duty
trucks and multipurpose passenger vehicles. Effective with new
jacks or when designated for use on current jacks.
Remarks. This procedure
is designed for frame/ratchet, vertical screw and scissor jacks. It
also includes required operating wrenches.
The following platform conducted tests (p) and vendor conducted
test (v) are included:
• Jack/Jack Point Durability Test (p). Subjects jack to seven
(7) lifts per jacking position (reference 4.3.1).
• Bench Test/Rig Jack Durability test (v). Australian
requirement (reference 4.3.2).
• Jacking Load Measurement Test (p). Obtains jack load versus
lift curve versus input torque, while jacking vehicle at Gross
Vehicle Mass (GVM) (reference 4.3.3).
• Proof Load Test (v). Subjects jack, in load test machine, to
twice the maximum recorded jacking load for 10 minutes (reference
4.3.4).
• Jack-Vehicle and Tire-Ground Test (p). Evaluates jack head cap
clearances to lowest vehicle attachment position. Also, evaluates
for 50 mm tire to ground clearance and maximum tire to ground
clearance (reference 4.3.5).
• Equipment Assembly Test (p). Evaluates effect of incorrectly
assembled jacking equipment (reference 4.3.6).
• Wheel Nut Wrench Strength/Durability Test (v). Subjects wrench
to minimum of 250% of manufacturer’s maximum recommended service
torque (reference 4.3.7).
• Operating Over travel Test (v). Evaluates jack strength if
attempted to operate past design limits (reference 4.3.8 and
4.3.9).
• Jack/Vehicle Slope Stability Test (p). (Reference 4.3.11).
• Head Cap Engagement Test (p). Australia requirement. Evaluates
the security of engagement of a specific jack with its designated
vehicle (reference 4.3.12).
Although 4.3.2 Bench Test/Rig Jack Durability Test and 4.3.12
Head Cap Engagement Test at Unladen Mass are noted as Australian
requirements, these will apply to all platforms for the purpose
that a certain platform may change export requirements at any time.
Therefore, no additional testing will be required after that
decision.