Icom IC-M71 Instruction Manual page 154

TM 10-7360-226-13&P
CONTAINERIZED KITCHEN (CK) 0023 00
UNIT MAINTENANCE PROCEDURES
TRAY PACK HEATER
THIS SECTION COVERS:
Inspect, Test, Replace
INITIAL SETUP:
CK set up for operation
Heater fan assembly unplugged
Maintenance Level
Unit
Tools and Special Tools
Tool Kit, General Mechanic's (WP 0052 00, Table 1, Item 1)
GENERAL
This procedure contains information and instructions for inspecting and repairing the Tray Pack
Heater. Refer to WP 0040 00 for repair parts information.
INSPECT
Inspect the Tray Pack Heater and the heater fan assembly for loose hardware and damaged
rivets. Inspect the fan assembly power cable for damage.
TEST
Casters: Disconnect the fuel line and power cord. Attempt moving the Tray Pack Heater with
the casters unlocked. It should move freely without binding of the casters. Move the cabinet in
all directions to isolate the problem to a particular caster. Check for foreign material in the
caster flanges. Refer to the procedure in the following section to replace a caster.
Drain Valve: Check for external leakage of the drain and that it is not clogged with foreign
material. Replace the drain valve if necessary following the procedure in the next section.
Heater Fan: If the fan motor shaft is not rotating, check that the power switch on the appliance
control box is ON and the power cable properly connected. Check the circuit breakers at the
Appliance Control Box and the Power Distribution Panel. Remove the access cover at the fan
assembly and check for 115 VAC. If voltage is not present recheck the cable assembly and
connections. Replace the cable assembly if required. Check the heater fan receptacle by
plugging the fan cable into a different receptacle. If voltage is present, replace the fan
assembly. Refer to the following repair procedures.
0023 00-1