TM 5-4520-241-14
CHAPTER 3
OPERATOR/CREW MAINTENANCE INSTRUCTIONS
SECTION I. LUBRICATION INSTRUCTIONS
No lubrication is required.
SECTION II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
3-1.
GENERAL.
To ensure that the space heater is ready for operation at all times, it must be inspected systematically so that
defects may be discovered and corrected before they result in serious damage or failure. The necessary preventive
maintenance services to be performed are listed and described in Table 3-1. Defects discovered during operation of the
unit shall be noted for future correction, to be made as soon as operation has ceased. Stop operation immediately if a
deficiency is noticed which would damage the equipment if operation were continued. All deficiencies and shortcomings
will be recorded, together with the corrective action taken, on DA Form 2404 (Equipment Inspection and Maintenance
Worksheet) at the earliest possible opportunity.
3-2.
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS).
NOTE
This heater does not require any lubrication.
All bearings are permanently
lubricated.
Refer to Table 3-1 for a tabulated listing of preventive maintenance checks and services which you must perform.
The item numbers are listed consecutively and indicate the sequence of minimum requirements. The time interval "daily"
should be regarded as the beginning of each duty shift.
3-3.
SERVICING STANDBY HEATERS.
a. Heaters on standby which have the fuel connections and power connections intact must be run periodically to
prevent fuel in the lines from losing volatility. Fuel with low volatility will make heater starting difficult or impossible.
b. Every two weeks, run standby heaters long enough to replace residual fuel in the fuel system of each heater to
ensure that the heaters will start when they are needed.
3-1
