diff --git a/maintenance.py b/maintenance.py
index 3757d6b..1b4a588 100644
--- a/maintenance.py
+++ b/maintenance.py
@@ -387,14 +387,58 @@ class Maintenance(Workflow, ModelSQL, ModelView):
             Measurements = pool.get('product.uom')
             self.temperature_uom  = Measurements.search(['name', '=', 'Celsius'])[0].id
 
-
+            
     @fields.depends('moisture_min', 'moisture_uom')
     def on_change_moisture_min(self):
         pool = Pool()
         Measurements = pool.get('product.uom')
         self.moisture_uom = Measurements.search(['name', '=', 'Relative Humedity'])[0].id
-        
 
+        
+    @fields.depends('service_maintenance')
+    def on_change_service_maintenance(self):
+        if self.service_maintenance:
+            self.propietary = self.service_maintenance.propietary
+            self.propietary_address = self.service_maintenance.propietary_address
+            service = self.service_maintenance
+            self.temperature_min = service.temperature_min
+            self.temperature_max = service.temperature_max
+            self.temperature_uom = service.temperature_uom
+            self.moisture_min = service.moisture_min
+            self.moisture_max = service.moisture_max
+            self.moisture_uom = service.moisture_uom
+        else:
+            self.propietary = None
+            self.propietary_address = None 
+            self.temperature_min = None
+            self.temperature_max = None
+            self.temperature_uom = None
+            self.moisture_min = None
+            self.moisture_max = None
+            self.moisture_uom = None
+ 
+
+    @fields.depends('equipment', 'patterns_equipments')
+    def on_change_equipment(self):
+        if self.equipment:
+            self.patterns_equipments = self.equipment.product.k_pattern
+            self.equipment_calibrate = self.equipment.product.calibration
+            self.initial_operation = self.equipment.product.initial_operation 
+            self.check_equipment = self.equipment.product.check_equipment
+            self.check_electric_system = self.equipment.product.check_electric_system
+            self.clean_int_ext = self.equipment.product.clean_int_ext
+            self.clean_eyes = self.equipment.product.clean_eyes
+            self.check_calibration = self.equipment.product.check_calibration
+        else:
+            self.patterns_equipments = None
+            self.equipment_calibrate = False
+            self.initial_operation = False
+            self.check_equipment = False
+            self.check_electric_system = False
+            self.clean_int_ext = False
+            self.clean_eyes = False
+            self.check_calibration = False
+            
     def get_next_maintenance(self, action):
         next_maintenance = None
         if self.service_maintenance.estimated_agended:
@@ -514,9 +558,13 @@ class Maintenance(Workflow, ModelSQL, ModelView):
         ls = 'dotted'
         fig, ax1 = plt.subplots(nrows=1, ncols=1)
 
+        ## Límites del Eje Y
         ax1.set_ylim(bottom, top)
-        ax1.set_xlim((-21, 21))
+        ## Límites del Eje X
+        ax1.set_xlim((min(labels)-1, max(labels)+1))
+        
         ax1.yaxis.grid(True)
+        ax1.xaxis.grid(True)
 
         ax1.set_title('Error[D]')
         ax1.set_xlabel('Patrones')
@@ -532,51 +580,6 @@ class Maintenance(Workflow, ModelSQL, ModelView):
 
         return image.getvalue()
 
-
-    @fields.depends('service_maintenance')
-    def on_change_service_maintenance(self):
-        if self.service_maintenance:
-            self.propietary = self.service_maintenance.propietary
-            self.propietary_address = self.service_maintenance.propietary_address
-            service = self.service_maintenance
-            self.temperature_min = service.temperature_min
-            self.temperature_max = service.temperature_max
-            self.temperature_uom = service.temperature_uom
-            self.moisture_min = service.moisture_min
-            self.moisture_max = service.moisture_max
-            self.moisture_uom = service.moisture_uom
-        else:
-            self.propietary = None
-            self.propietary_address = None 
-            self.temperature_min = None
-            self.temperature_max = None
-            self.temperature_uom = None
-            self.moisture_min = None
-            self.moisture_max = None
-            self.moisture_uom = None
- 
-
-    @fields.depends('equipment', 'patterns_equipments')
-    def on_change_equipment(self):
-        if self.equipment:
-            self.patterns_equipments = self.equipment.product.k_pattern
-            self.equipment_calibrate = self.equipment.product.calibration
-            self.initial_operation = self.equipment.product.initial_operation 
-            self.check_equipment = self.equipment.product.check_equipment
-            self.check_electric_system = self.equipment.product.check_electric_system
-            self.clean_int_ext = self.equipment.product.clean_int_ext
-            self.clean_eyes = self.equipment.product.clean_eyes
-            self.check_calibration = self.equipment.product.check_calibration
-        else:
-            self.patterns_equipments = None
-            self.equipment_calibrate = False
-            self.initial_operation = False
-            self.check_equipment = False
-            self.check_electric_system = False
-            self.clean_int_ext = False
-            self.clean_eyes = False
-            self.check_calibration = False
-
     @classmethod
     @ModelView.button
     @Workflow.transition('in_progress')
@@ -745,8 +748,7 @@ class Calibration(ModelSQL, ModelView):
 class CalibrationSample(sequence_ordered(), ModelView, ModelSQL):
     'Samples of Calibration'
     __name__ = 'optical_equipment.maintenance.calibration_sample'
-    
-    
+        
     maintenance = fields.Many2One('optical_equipment.maintenance', 'Maintenance')
     product = fields.Function(fields.Integer("Product ID"), 'on_change_with_product')
     number_sample = fields.Float("Sample #",  _digits)
@@ -760,8 +762,6 @@ class CalibrationSample(sequence_ordered(), ModelView, ModelSQL):
                                 states={'readonly': True},
                                 depends=['mistake'])
 
-
-
     @fields.depends('maintenance', '_parent_maintenance.equipment')
     def on_change_with_product(self, name=None):
         if self.maintenance:
@@ -881,7 +881,6 @@ class ServiceMaintenanceAgended(ModelSQL):
     'Service Maintenance - Agended'
     __name__ = 'optical_equipment_maintenance.service-maintenance.diary'
 
-
     maintenance_service = fields.Many2One('optical_equipment_maintenance.service', "Maintenance Service")
     agended = fields.Many2One('optical_equipment_maintenance.diary', "Agended")