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Would you stake your life, right now, on the condition of your equipment?
NEWS | April 22, 2022

MRAP: Rev-up MaxxPros with Particle Separator Cleaning

MaxxPro MRAP
Photo by Pvt. Randy Wren
Operators, a few years ago in TACOM Maintenance Action Message (MAM) 19-012, TACOM evaluated the particle separator used on all three (3) models of the MaxxPro and decided that annual replacement was no longer necessary. Instead, the particle separators just need to be cleaned every year with a couple sprays of compressed air to blow out any debris.
Why’s it important? Air particle separators keep contaminants out of the HVAC system. If they get clogged, it can lead to HVAC failure, resulting in a loss of heating, cooling or both.
If you’ve ever been inside an MRAP with no HVAC, you know it’s a miserable ride. That’s why you don’t want to overlook this annual cleaning task!
Before you begin cleaning, remember to wear personal protective equipment, including safety goggles and gloves. To clean the particle separators, use an air gun to spray compressed air between the three (3) filter openings until little or no debris is evident.
Don’t use compressed air at more than 30 psi (207 kPa) to perform this task. Anything higher will increase the risk of debris particles getting into your skin and eyes.
Don’t use water or cleaning liquid either because it’ll just make a huge mess. That’s because it creates clogs that even compressed air can’t blow out!   
If you need to replace the MaxxPro air particle separators for other reasons, like wear and tear, here’s what to order:
Model Item NSN
M1235A4, M1235A5 Filter, particulate 4240-01-631-4436
M1266A1 Filtering pad, air cooler 4130-01-563-3147

Make a note until the cleaning instructions are added to TM 9-2355-457-23 (Jul 17).
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