The warranty covers all parts of the machine for the stated period of each model (Other than typical wear items or misuse).
Purchaser is to provide any labor required to diagnose and repair or replace the defective part or issue. (Normally, a customer will work on their own machine as needed)
Service is specifically excluded, under no circumstances will the cost of service/labor be covered under any warranty. If the customer is unable to perform this work for any reason, it is their responsibility to find or hire someone at their expense to perform the required repair work.