Section I. CONTROLS AND INSTRUMENTS
b. Release Lever.
The release lever (2) is
This section gives the location and purpose of controls
mounted on the press cylinder head (10). Pulling the
and instruments used to operate the M1 crimping outfit.
lever down releases the ram (9) so the upper die (8) can
Left and right sides of the press are the operator's left
be raised and lowered.
and right as he face the press.
c. Handle Assembly. The handle assembly is
attached to the right side of the lower die. When the
handle (5) is pulled toward the operator, the cam (6)
a. Pump Handle. The pump handle (4, fig. 1) is
closes the movable part of the lower die (7).
installed through the right end of the rocker shaft (3) that
extends across the top rear of the press frame.
Operating the handle with an up and down pumping
The pressure gage (1) is connected to the cylinder head.
motion applies pressure to the ram.
The gage registers pressure in pounds per square inch,
when the pump handle is operated.
Section II. OPERATION
b. Follow instructions given in the appropriate
technical manual (para 1) for removing and installing
a. This section gives instructions for operating the
mask components mentioned in a above. Inspect
ABC-M1 crimping outfit. Maintenance procedures are
removed parts for damage. If they are undamaged, set
included for replacing voicemitter-outlet valve
them aside for reuse. Discard damaged parts.
assemblies and nosecups in ABC-M17 and M17A1
masks, using the expander-ring technique.
b. Assemble materials and tools required for
making the repair, and place them within easy reach of
(1) Grasp one of the small tabs on the
crimping ring with a pair of roundnose pliers. Use the
Note. Avoid interchanging mask parts. Only
pliers to lift and twist the tab away from the voicemitter-
one model mask and parts should be in the immediate
outlet valve assembly frame and to tear the crimping
work area at one time.
ring. Pull the torn crimping ring from around the frame
16. Preparation of Mask for Repair
and discard it.
a. The voicemitter-outlet valve cover (including
(2) Lift the voicemitter-outlet valve assembly
drinking tube, if applicable) must be removed from the
from the facepiece.
mask. For easier handling during repair, remove the
inlet valve caps, filter elements, and head harness from
(a) When repairing ABC-M17 masks,
check the assembly frame. If the back surface