TM 5-4520-256-14
Section VI. MAINTENANCE PROCEDURES
Para.
Para.
Air Filter Maintenance ....................................... 3-10
Heater Temperature Controller
Exhaust Pipe Maintenance................................ 3-11
Maintenance ............................................... 3-28
Duct Assembly Maintenance............................. 3-12
Power Cable Assembly Mainte-
Control Panel Maintenance............................... 3-13
nance.......................................................... 3-29
OFF/VENT/HEAT Switch (S1)..................................
High Tension Cable Assembly
Maintenance ............................................... 3-14
Maintenance ............................................... 3-30
Fuel Pressure Gage Maintenance..................... 3-15
Discharge Temperature Thermo-
Hour Meter Maintenance................................... 3-16
stat Maintenance......................................... 3-31
Combustion Control Relay (K8)................................
Return Temperature Thermostat
Maintenance ............................................... 3-17
Maintenance ............................................... 3-32
Audible Alarm (EM1) Maintenance................... 3-18
Motor Starter (Army Model H83)
Circuit Breaker (CB1) Mainte- ..................................
Maintenance ............................................ 3-32.1
nance.......................................................... 3-19
Terminal Board Maintenance ......................... 3-32.2
ON/OFF Toggle Switch Mainte- ...............................
Tube Assemblies Maintenance.......................... 3-33
nance.......................................................... 3-20
Solenoid Valves Maintenance........................... 3-34
Rectifier Maintenance ....................................... 3-21
Fuel Oil Filter Maintenance ............................... 3-35
INTERNAL TANK/EXTERNAL TANK.......................
Sightglass Maintenance.................................... 3-36
Selector Maintenance ................................. 3-22
Flame Detector Maintenance ............................ 3-37
Blower Maintenance.......................................... 3-23
Electrode Maintenance...................................... 3-38
Fuel Pump Maintenance ................................... 3-24
Nozzle Maintenance.......................................... 3-39
Motor Maintenance ........................................... 3-25
Combustion Air Hose Mainte-
Transformer Maintenance ................................. 3-26
nance.......................................................... 3-40
High Temperature Safety Thermo-...........................
Fuel Level Gage Maintenance........................... 3-41
stat Maintenance......................................... 3-27
Lifting Handles Maintenance............................. 3-42
Change 4 3-17
