TM 9-4120-385-14
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
The operator is required to perform preventive maintenance checks and services. Refer to Table
2-1. Maintenance by operator/crew is limited to operating the air conditioner in COOL, LO-HEAT,
and VENTILATE modes. Refer any malfunction to unit maintenance.
NOTE
Perform weekly as well as before PMCS if:
You are assigned operator and have not operated the item since the last
weekly PMCS.
You are operating the item for the first time.