OPERATOR, FIELD AND SUSTAINMENT MAINTENANCE
LARGE CAPACITY FIELD HEATER (LCFH)
UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES INTRODUCTION
Preventive Maintenance Checks and Services (PMCS) are performed to keep the Large Capacity Field
Heater (LCFH) in good operating condition and ready for its primary mission. The checks are used to
find, correct, and report problems. PMCS is performed every day the Large Capacity Field Heater
(LCFH) is in operation, and is done according to the PMCS table provided. Pay attention to WARNING,
CAUTION, and NOTE statements. A WARNING indicates that someone could be hurt or killed. A
CAUTION indicates that equipment could be damaged. A NOTE may make your maintenance or repair
Be sure to perform scheduled PMCS. Always perform PMCS in the same order so it becomes habit.
With practice, you will quickly recognize problems with the equipment.
Use DA Form 2404, Equipment Inspection and Maintenance Worksheet, to record any discovered faults.
Do not record faults that you fix!
Table 1 lists inspections and care required to keep your equipment in good operating condition. It is
arranged so that you can perform before operation checks as you walk around the equipment.
Explanation of Table 1 columns
Indicates the reference number. When completing DA Form 2404, Equipment Inspection and
Maintenance Worksheet, include the item number for the item to check/service indicating a fault. Item
numbers appear in the order you must perform the checks/services listed.
Indicates when you must perform the procedure in the procedure column.
before - perform before equipment operation
during - perform during equipment operation
after - perform after equipment has been operated
weekly - perform every week
monthly - perform each month
hours - perform at the noted hourly interval
Item to Check/Service
Indicates the item to be checked or serviced.
Indicates the procedure you must perform on the item listed in Item to Check/Service column. You must
perform the procedure at the time specified in the Interval column. If you are not authorized to perform the
maintenance task indicated, notify direct support maintenance.
Not Fully Mission Capable If:
Indicates faults which will prevent your equipment from performing its primary mission. If you perform
procedures listed in Procedure column which show faults listed in this column, do not operate the
equipment. Follow standard procedures for maintaining the equipment or reporting equipment failure.