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).
Place particulate fitter (7) in fitter housing (8), either
Grasp lnner cover by the handle andplace it in the
access cover (6).
Swing retaining bar (4) up across inner cover and
engage end of bar with catch (3).
Tlghten screw (2) until sleeve (9) is flush with top surface
(A) of retaining bar (4).