Table 3-2. Troubleshooting Procedures - Continued
Test or Inspection
Step 4. If problem is still not corrected.
Notify Organizational Maintenance.
AGGREGATE SUPPLY SYSTEM
4. MIX SEEMS TOO SANDY OR STONY
Step 1. Check to be sure all ingredients controls are at the settings you have been given.
Step 2. Check that bins have sand and stone in them.
Refill empty bins
Step 3. Check that vibrators are functioning. Place your hand on the side of the bin and feel for vibrations.
a. If vibrators are not functioning, see malfunction 6.
b. Sometimes the automatic vibrating action is not strong enough to shake aggregates onto the
conveyor belt. Pull on the manual vibrator control to increase shaker action. See page 1-6 for
correct location of manual vibrator control.
If sand is still bridged in the bin, poke it with a rod to break up the bridge.
Step 4. Check to see If gates are blocked.
Remove large stones or other objects blocking the gates.
Step 5. Refer problem to Organizational Maintenance.
Change 1 3-36