The examples shown all refer to a bean templateActionModelFactory but do not define it. The docs here show that the only known implementing class of TemplateActionModelFactory interface is FreeMarkerWithLuceneExtensionsModelFactory and the example scheduled-action-services-context.xml.sample defines the bean as such:
<bean id="templateActionModelFactory" class="org.alfresco.repo.action.scheduled.FreeMarkerWithLuceneExtensionsModelFactory">
<property name="serviceRegistry">
<ref bean="ServiceRegistry"/>
</property>
</bean>
