Elapsed time between the depression of the brake treadle and the delivery of 60 psi to all of the service chambers per US Regulations FMVSS 121 (49CFR 571.121). |
Service Brake Application Time
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Elapsed time between the depression of the brake treadle and the delivery of 60 psi to all of the service chambers per US Regulations FMVSS 121 (49CFR 571.121). |