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|  MIL-T-62222(AT)
3.4.15.3.5 Searchlight power circuits. The searchlight power circuits shall be capable of
providing vehicle power for operating and controlling the searchlight (for 2.2 KW AN/VSS-1
searchlight only) (see 4.6.16.3.5).
3.4.15.3.6 Smoke grenade discharger circuits.
3.4.15.3.6.1 Arming. The power-on (ready) lamp in the grenade power box shall illuminate
when the master battery switch, the turret power switch, and the grenade system power switch
are all ON (see 4.6.16.3.6.1).
3.4.15.3.6.2 Circuit voltage. Voltage at the smoke grenade discharger firing pins, shown in
figure 2, shall be as indicated in table III when the power-on (ready) lamp in the grenade power
box is illuminated and the appropriate firing pushbutton is actuated (see 4.6.16.3.6.2 and
4.6.16.3.6.3).
TABLE III. Grenade discharger circuit voltage.
Firing
Left
Right
push
discharger
discharger
Voltage
button
firing pins
firing pins
RIGHT
1, 2, 5
3, 4, 6
Vehicle (see 3.5.15.2.3)
RIGHT
3, 4, 6
1, 2, 5
0 + 0.5 V dc
LEFT
3, 4, 6
Vehicle (see 3.5.15.2.3)
1, 2, 5
LEFT
0 + 0.5 V dc
1, 2, 5
3, 4, 6
3.5 Performance. A complete vehicle combat loaded or with a simulated load of equal
weight (see 3.4.8), and serviced, shall perform herein after a break-in run. The vehicle, serviced
(see 3.3.2a) and equipped for existing climatic conditions, shall operate as specified without
special equipment (see 4.6.17).
3.5.1 Durability. The vehicle shall meet the operational durability requirements when
operated for 4000 miles, combat loaded or with a simulated load of equal weight, at an average
speed not exceeding 30 mph over terrain apportioned as follows (see 4.6.17.1):
a. 25 percent on paved roads, either concrete or asphalt, or any combination of the two.
b. 25 percent on gravel and dirt roads with at least 10 percent of this distance under mud
conditions.
c. 25 percent on level, cross country.
d. 25 percent on hilly, cross country.
3.5.2 Power plant and power train. The power plant (engine and transmission) shall function
throughout all gear and speed ranges without loss of lubricants or damage that may cause failure
of vehicle to perform any of the mobility requirements. The power train (power plant, final drive
and track) and associated controls shall be capable of operation throughout all speed and steering
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