diff --git a/tutorials/sphereGranFlow/conveyorBelt/settings/domainDict b/tutorials/sphereGranFlow/conveyorBelt/settings/domainDict
index ef8b80a9..159c33e5 100755
--- a/tutorials/sphereGranFlow/conveyorBelt/settings/domainDict
+++ b/tutorials/sphereGranFlow/conveyorBelt/settings/domainDict
@@ -10,7 +10,7 @@ globalBox                                        // Simulation domain: every par
 {
 	min (-0.11 -0.11 -0.41);
 	
-	max ( 0.11  0.11  0.41);
+	max ( 0.33  0.11  0.41);
 }
 
 boundaries
diff --git a/tutorials/sphereGranFlow/conveyorBelt/settings/geometryDict b/tutorials/sphereGranFlow/conveyorBelt/settings/geometryDict
index a4c75819..96be1ebb 100755
--- a/tutorials/sphereGranFlow/conveyorBelt/settings/geometryDict
+++ b/tutorials/sphereGranFlow/conveyorBelt/settings/geometryDict
@@ -12,7 +12,7 @@ conveyorBeltInfo
 {
     conveyorBelt1
     {
-        velocity (1 0 0);
+        velocity (0.5 0 0);
     }
 }
 
diff --git a/tutorials/sphereGranFlow/conveyorBelt/settings/settingsDict b/tutorials/sphereGranFlow/conveyorBelt/settings/settingsDict
index 532bba8d..c5b6650d 100755
--- a/tutorials/sphereGranFlow/conveyorBelt/settings/settingsDict
+++ b/tutorials/sphereGranFlow/conveyorBelt/settings/settingsDict
@@ -8,7 +8,7 @@ fileFormat  ASCII;
 /*---------------------------------------------------------------------------*/
 run   layerdSiloFilling;
 
-dt 				0.00001; 	                     // time step for integration (s)
+dt 				0.00005; 	                     // time step for integration (s)
 
 startTime 		    0.0; 		                 // start time for simulation