Removing & Replacing The Desiccant Assembly; Removing & Replacing The Desiccant Assembly; Remove And Replace The Desiccant Assembly; Figure 6-4 Desiccant Assembly And Humidity Indicator - L3 Communications MX-15i Operation & Maintenance Manual

Chapter 6 - Removing & Replacing the Desiccant Assembly
6.5 REMOVING & REPLACING THE DESICCANT ASSEMBLY
When desiccant material in the desiccant assembly becomes saturated with water it must be replaced. The
humidity indicator on the desiccant assembly will indicate the moisture level. If the upper quadrants labeled 30 & 40
are lavender (pink), the desiccant material must be replaced. There are two options:
• Option 1 – Remove and replace with a new desiccant assembly
• Option 2 – Remove, refill desiccant material and reinstall the desiccant assembly
Right side
c k
B a
6.5.1

Remove and Replace the Desiccant Assembly

Removing and replacing the desiccant assembly involves unfastening 4 retention screws. The desiccant assembly
has captive fasteners – held by a spring loaded retention pin rather than a threaded shaft. Like a bayonet style, the
screw requires a 1/4 turn with inward pressure to release. The turret includes a breather check-valve that seals
airflow when the desiccant assembly is removed. Make sure the replacement desiccant assembly is a new unit
sealed in plastic.
Table 6-8 Desiccant Removal — Parts
Description
Desiccant assembly
October 2007
108
Desiccant
Humidity Indicator
Turret
Breather
Check Valve
Left side
Desiccant
Assembly

Figure 6-4 Desiccant Assembly and Humidity Indicator

Part Number
42418
2 Lavender (Pink) / 2 Blue
F r
o n
t
Quantity
1 pcs
TM00358 Rev. A
30 40
50 60
All Blue
Quadrants indicating
Operational
30 40
50 60
Quadrants indicating
Non-Operational
Blue
Lavender
(Pink)
Notes
L-3 WESCAM
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