В контракте ничего про мейнтенанс нет, максимум близкое:
6. ADDITIONAL SUPPLIES AND SERVICES
6.1 In addition to the provision of the leased property and any movable property present therein, the supplies and services listed in Articles 1.6c, will be delivered or provided. At the end of this agreement the exact use of utilities will be calculated and cleared with the monthly payment.
6.2 The advance payments paid by the lessee as meant in Article 1.6c will be settled periodically, and also after the end of the lease, based on the actual costs.
6.3 If the lessor actually provides supplies and services to the lessee that are not mentioned in the lease, the parties are deemed to have agreed that these supplies and services are provided for no consideration.