TM 5-3895-372-10
Table 3-2. Troubleshooting Procedures - Continued
Malfunction
Test or Inspection
Corrective Action
AIR SYSTEM
6. VIBRATORS DO NOT FUNCTION
Step 1. Check that chassis air pressure Is more than 65 psi (448 kPa).
Troubleshoot chassis air system (see TM 9-2320-273-10).
Step 2. Check that air shutoff valve is turned all the way counter-clockwise.
Open air shutoff valve.
Step 3. Check that fluffer valve to the cement bin aeration pads is closed completely and not stuck open.
Check for proper lubrication on valve stem; lubricate as necessary to restore free movement.
Step 4. Check to be certain that when previously shut down, the collar cam is in position to hold a vibrator
actuating valve in an open position.
To correct, rotate the cement meter-feeder sufficiently to move the collar cam away from the valve
so that the valve will close.
Step 5. Check that all admix tank petcocks are closed and that air is not leaking from any valves or petcocks in
the admix system.
Close petcocks as necessary.
Step 6. If vibrators still do not function.
Notify Organizational Maintenance.
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