Can the Owner accelerate the schedule?

Yes, the Owner may order the acceleration of work to meet a desired completion date. Acceleration of work for the benefit or convenience of the Owner or caused by the fault of or delay by the Owner, shall be treated as extra work for which a Change Order shall be issued and the Contractor shall be paid for the cost of such acceleration. However, where the reason for acceleration is due to the fault of the Contractor, and for the purpose of catching up with the original schedule,  such additional cost for acceleration shall be borne by the Contractor alone.