MIL-PRF-83818B
3.17.1 Service brakes. Full air, air-over-hydraulic, or hydraulic-over-hydraulic type, foot
controlled, service brakes shall be provided. Not more than 80 pounds of force on the brake
pedal shall be required to meet the stopping distance and drawbar drag test.
3.17.2 Parking brake. The parking brake actuation shall be independent from the service brakes.
The control shall be located within reach of the seated operator and in a position to permit easy
and safe movement on and off the vehicle. Not more than 35 pounds of force shall be required to
apply the parking brake. The parking brake shall hold the truck with rated load on a 15% grade
in both the forward and reverse direction.
3.18 Electric system. The electrical system shall consist of all electrical components necessary
for operation of the truck. The forklift shall have sufficient electrical grounding to prevent static
discharge.
3.18.1 Battery. Except when Type A Winterization (see 3.21.1) is specified (see 6.2), the
battery(s) shall be the maintenance-free type. Electrical system voltage shall be 12 volts.
3.18.2 Electrical disconnect switch. A keyless master switch, with an identification plate, shall
be installed in a convenient location to permit disconnect of the battery from all electrical load.
3.18.3 Ignition switch. A key operated ignition switch shall be furnished. It shall have not less
than three positions; off, on and start. The ignition switch shall not activate the engine starter
while the engine is running, nor when the engine is not running and the transmission is in any
forward or reverse gear.
3.18.4 Alternator. The alternator shall have sufficient output at normal engine operating RPM to
supply full electrical operating load, including all lights, and still provide electrical current to
charge the battery.
3.18.5 Wiring schematic. The wiring schematic shall be provided on a durable material and
should be stored in the cab. For example: A book with hard plastic pages (tear resistant & smear
resistant).
3.19 Instruments. In addition to the instruments supplied on the standard commercial forklift, an
hour meter shall be installed in the instrument panel. All instruments, except the hour meter
shall be lighted when the front floodlights (see 3.20) are illuminated.
3.20 Lighting. There shall be at least two forward and one rearward directed floodlights. One
of the forward facing floodlights shall be mounted on the mast. The manufacturer shall make
available an additional floodlight that is adjustable from the operator's compartment. Tail
light(s), and brake stop light(s) shall be installed. All lights shall be protected by location or
guards. Individual operator controlled switches shall be provided for the front lights, the rear
lights, and the adjustable light. If a rotary switch provides all possible options that the individual
switches provide, then the rotary switch is acceptable.
3.21 Winterization. (Minimum Requirements).
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