2-14. M56 GAS-PARTICULATE FILTER UNIT - MAINTENANCE INSTRUCTIONS (CONT).
The unit commander or senior officer in charge of maintenance personnel assigned to remove and
dispose of the contaminated gas and particulate filters must prescribe the necessary protective clothing
(TM 10-277) to be worn during this operation. He must also prescribe the necessary safety measures to
be followed including the decontamination operation (TM 3-220) that must be performed before the new
filters are installed.
M56 Gas-Particulate Filter
Set POWER switch (1) on the compartment control
module to OFF.
Loosen screw (2).
Pull catch (3) outward and swing retaining bar (4) away
from inner cover (5).
Using handles, pull inner cover (5) from access
Pull particulate filter (7) from fitter housing (8).