TST-770 WSD Full Line Manual-RevA
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Page 6
TST-770 SYSTEM DEFAULT SETTINGS
COLD TIRE PRESSURE (CTP) SYSTEM DEFAULT SETTINGS
Pressure Unit
PSI
Temperature Unit
ºF
High Pressure Alert
125 PSI
Low Pressure Alert
90 PSI
High Temperature Alert
158ºF
Power Unit Cold Tire Pressure
Steer Axle
100 PSI
Drive Axle
100 PSI
Spare Tire
100 PSI
Power Unit Manual Input High and Low Pressure Alert
High (Axle1/2/3/S)
125 PSI
Low (Axle1/2/3/S)
90 PSI
Trailer Cold Tire Pressure
Trailer # 1/2/3/4/5
100 PSI
Trailer Manual Input High and Low Pressure Alert
High (Axle1/2/3/S)
125 PSI
Low (Axle1/2/3/S)
90 PSI
Note:
Default pressure settings are based on the cold tire pressure. Once the customer
enters into “Manual Input High and Low Pressure Alert” to set the cold pressure
manually, “System is currently using manually input high/low pressure settings” will
appear on the screen.
Cold Tire Pressure (CTP) defaults alerts are 25% above CTP for High Pressure
and 10% below CTP for Low Pressure.
Example Scenarios
Steer Axle
CTP of 100 PSI
Axle 1
HIGH Alert
125 PSI (100 PSI CTP x 125% = 125 PSI)
Axle 1
LOW Alert
90 PSI (100 PSI CTP x 90% = 90 PSI)
Drive Axle
CTP of 110 PSI
Drive Axle 2/3 HIGH Alert
138 PSI (110 PSI CTP x 125% = 138 PSI)
Drive Axle 2/3 LOW Alert
99 PSI (110 PSI CTP x 90% = 99 PSI)
Spare
CTP of 120 PSI
Spare HIGH Alert
150 PSI (120 PSI CTP x 125% = 150 PSI)
Spare LOW Alert
108 PSI (120 PSI CTP x 90% = 108 PSI)
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