TM 3-4240-286-20&P
2-14. M56 GAS-PARTICULATE FILTER UNIT - MAINTENANCE INSTRUCTIONS (CONT).
LOCATION
ITEM
ACTION
INSTALLATION
M56 Gas-Particulate Filter
Place gas filter (12) in filter housing (8), either end first.
Gas filter
Unit
Position access cover (6) on filter housing, aline guide
pin with guide hole (15). Push access cover (6)
into place.
NOTE
To prevent binding of outer access cover
against filter housing rim, screws must be
tightened alternately, in a criss-
cross pattern.
Install washers (11), aluminum washers (10), and
screws (9) finger tight.
CAUTION
Be sure to observe torque values for the
torque wrench being used.
Preliminary torque. In a criss-cross pattern, torque
screws to 8-10 foot-pounds (100-125 inch-pounds).
Final torque. In a criss-cross pattern, torque screws to
15-16 foot-pounds (180-200 inch pounds).
Place particulate filter (7) in gas filter (16), either end
Particulate filter
first.
Grasp inner cover by the handles and place it in the
access cover (6).
Swing retaining bar (4) up across inner cover and
engage end of bar with catch (3).
Tighten screw (2) until sleeve (17) is flush with top
surface (A) of retaining bar (4).
2-72
