diff --git a/maintenance.py b/maintenance.py
index 15110bc..686feef 100644
--- a/maintenance.py
+++ b/maintenance.py
@@ -40,6 +40,13 @@ class Maintenance(Workflow, ModelSQL, ModelView):
     technical = fields.Many2One('company.employee', "Technical")
 
     #Preventive maintenance
+    initial_operation = fields.Boolean("Verificiación inicial de funcionamiento")
+    check_equipment = fields.Boolean("Revisión del Equipo")
+    check_eletric_system = fields.Boolean("Revisión del sistema electríco")
+    clean_int_ext = fields.Boolean("Limpieza interior y exterior")
+    clean_eyes = fields.Boolean("Limpieza de lentes y espejos")
+    optical = fields.Boolean("Optical")
+    check_calibration = fields.Boolean("Verificar Calibración")
     
     # maintenance_activity = fields.Many2Many('optical_equipment.maintenance-product.product', 'activity', 'maintenance', "Maintenance Activitys")
     maintenance_lines = fields.One2Many('optical_equipment.maintenance.line', 'maintenance', 'Lines')
diff --git a/view/maintenance_form.xml b/view/maintenance_form.xml
index 734b8d0..66f4993 100644
--- a/view/maintenance_form.xml
+++ b/view/maintenance_form.xml
@@ -25,9 +25,20 @@
 	    <field name="state_agended"/>
 	</page>
 	<page string="Preventive" id="preventive">
-	    <label name="maintenance_lines"/>
-	    <field name="maintenance_lines"/>
-	    <field name="maintenance_lines"/>
+	    <label name="initial_operation"/>
+	    <field name="initial_operation"/>
+	    <label name="check_equipment"/>
+	    <field name="check_equipment"/>
+	    <label name="check_eletric_system"/>
+	    <field name="check_eletric_system"/>
+	    <label name="clean_int_ext"/>
+	    <field name="clean_int_ext"/>
+	    <label name="clean_eyes"/>
+	    <field name="clean_eyes"/>
+	    <label name="optical"/>
+	    <field name="optical"/>
+	    <label name="check_calibration"/>
+	    <field name="check_calibration"/> 
 	</page>
 	<page string="Corrective" id="corrective">
 	    <label name="maintenance_lines"/>