4
Chapter 1: Introduction and General Information
1-4 EQUIPMENT, TOOLS, AND MATERIALS NEEDED
This section provides information about the equipment, tools, and consumable materials needed
for helmet preparation and maintenance.
Table 1-1
lists the necessary equipment.
Table 1-2
lists the required tools.
Table 1-3
lists the consumable materials used in the preparation and
maintenance of the helmet.
Table 1-1. Equipment
ITEM
PURPOSE
Life Support Integrated Tester
(LSIT-1/A), G006-1001-01
(6695-01-449-4690)
To test the helmet/oxygen mask fit and the headset/oxygen
mask communications
MQ-1/MQ1A tester
(6695-01-097-0441)
To test the headset/oxygen mask communications
DMH-1 tester
(6625-01-251-8705)
To check communication equipment for shorts or open
circuits; to isolate problem components. Instructions
provided with each tester.
Table 1-2. Tools
ITEM
PURPOSE
Caliper
To measure head length, width, and height for determining
helmet size; may be locally manufactured from sheet
aluminum, plastic, or cardboard
Ruler: standard, calibrated in
inches to tenths, or metric
To obtain the dimensions of the caliper measurements for
determining helmet size
Torque screwdriver
To adjust screws to proper tightness as needed
Drill with #25 (5/32”) drill bit
To drill holes in the helmet shell for the bayonet receiver
hardware
Utility knife
To make X-shaped openings in the pile fasteners inside the
helmet for access to bayonet receiver hardware
Jeweler’s screwdriver or
1/32 hex wrench
To loosen and tighten earphone set screws during
maintenance
Thin, flexible metal spatula
To remove energy-absorbing liner during maintenance
Flat-tip and cross-tip
screwdrivers
To remove and attach various types of hardware
(Continued on next page)
