TM 10-3510-220-24
2-48.
DRYER UV SCANNER AND FLAME SAFEGUARD ASSEMBLY
This task covers:
a . T e s t
b. Removal
c. Service
d. Repair
e. Installation
INITIAL SETUP:
Tools
Equipment Condition:
General mechanic’s tool kit
TM 10-3510-220-10, Tarp assembly removed.
TM 10-3510-220-10, Dryer bin removed.
Materials/Parts
General Safety Instructions
WARNING
Identification tags
High voltage is present on this equipment. Do not
(Item 12, App C)
Wiping cloths (Item 3, App C)
perform maintenance with power on. Death or
serious injury may result.
WARNING
Heated parts may cause injury to personnel if
safety precautions are not followed. Allow burner
area to cool before any maintenance actions are
performed on the burner assembly.
TEST
NOTE
The ultra violet scanner and flame safeguard assembly is a fail-safe
item that protects against excessive fuel build-up when a flame-out or
ignition failure problem exists. The fuel solenoid and pump is
automatically shut down if the scanner doesn’t see a flame after a
maximum of 20 seconds during a regular start cycle. The blower will
continue to run for 60 seconds if the post purge relay is set halfway.
1. Operate dryer for a warm-up period of 5 minutes.
2. Close fuel valve. Pump and solenoid should shut down approximately 20 seconds after the fuel
valve is closed.
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