TM 5-3895-373-20REFERENCE INFORMATIONSCREED VIBRATOR CIRCUITRefer to TM 5-3895-373-10 for engine starting and equipment operating procedures. Refer to paragraph 2.10 forconnecting and disconnecting STE/ICE-R test set to DCA.Refer to paragraph 1.21.5 for a functional description ofthe screed vibration circuit.Vibration speed control valve bleeds hydraulic oil to thehydraulic reservoir. Opening the valve reduces oil flow tothe vibration motors, resulting in lower vibration speeds.Closing the valve increases oil flow and vibration speed.Turn valve clockwise to increase vibration speed.In automatic operating mode, jumper circuit betweenvibrator switch terminals #1 and #3 is closed.When travel switch is on and control handles are inforward or reverse, closing jumper circuit provides +12vdc from CB6 to turn on vibrator valve solenoid coil.When left or right control handle is in neutral, switchingvoltage to relay R2 is turned off. Unless R1 or R2 relaycontactor is shorted, placing either control handle inneutral will open jumper circuit between terminals #1 and#3 of vibrator switch.2-325
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
