DP23 New Lined Shoes

2 — DP23 New Lined Shoes

Dayton Parts, LLC

INITIAL LINING TEMP (DEG ºF)

100

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100

0

RECOVERY STOPS 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Maximum Stroke Minimum Limit Maximum Limit Retardation Ratio

0 20 40 60 80

0.0 RETARDATION RATIO 0.2 0.1 120 FMVSS 121 Test Results DP23 - Vocations Up To 23K 23,000 lb GAWR, Type 30 Chamber, 5.5" Slack Arm, 19.6" RR 0.4 0.3 0.6 0.5 0.8 0.7 120 RETARDATION 50 mi/h - 176°F Initial Lining Temperature 350°F BURNISH 2 40 mi/h - 10 ft/s Deceleration Rate 500°F BURNISH 2 40 mi/h - 10 ft/s Deceleration Rate STROKE (inches) 2 PRESSURE (lbf/in ) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 20 40 60 80 100

SUSTAINED PRESSURE (PSI)

2 50-15 mi/h - 9 ft/s Deceleration - 72 s Time Cycle 2 20 mi/h - 14 ft/s Decel. 2 30 mi/h - 12 ft/s Deceleration - 60 s Time Cycle BRAKE POWER HOT STOP RECOVERY

STOP NUMBER STOP NUMBER 1 20 40 60 80 100 120 140 160 180 200 1 20 40 60 80 100 120 140 160 180 200 0

POWER STOPS HOT STOP

Initial DrumTemperature Maximum, Average, Minimum Pressure

1 2 3 4 5 6 7 8 9 10 0

90

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40

PRESSURE (PSI) 20 10 30

110

100