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Diagnostic connector assembly (DCA) |
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|  MIL-T-62531(AT)
3.4.5.8 Diagnostic connector assembly (DCA). The vehicle will incorporate an accessible
DCA for Simplified Test Equipment/Internal Combustion Engine (STE/ICE) per MIL-T-62314.
The diagnostic connector, Drawing 12258941, on the vehicle will interface with the STE/ICE
test equipment (see 4.4.5.8).
3.4.6 Exhaust system. The exhaust system shall be of leakproof construction, securely
mounted and shall withstand vehicle racking, shock and vibration when subjected to RAM-D
performance operation. Material for exhaust system, including those used for muffler and
tailpipe, shall be made from corrosion resistant steel. Exhaust pipe shall be secured to the
exhaust manifold with a quick disconnect design feature that can be quickly disconnected and
reconnected. Design of pipe shall be such that it shall not interfere with power unit removal.
The exhaust system should be so located and/or protected to prevent personnel from coming into
contact with hot surfaces. The exhaust system shall comply with paragraph 393.83 of FMCSR,
title 29, chapter III, subchapter B (see 4.4.6).
3.4.6.1 Toxic gas exposure.
3.4.6.1.1 Carbon monoxide. Operating and maintenance personnel shall not be exposed to
concentrations of carbon monoxide (CO) in excess of values which will result in
carboxyhemoglobin (COHb) levels in their blood greater than 10% in accordance with
MIL-STD-1472C. The equation used to estimate the percent COHb blood levels will be in
accordance with MIL-HDBK-759A using work stress level 4 for weapons firing and work stress
level 3 for all other mission activities (see 4.4.6.1.1).
3.4.6.1.2 Other toxic gases. Nitrogen dioxide, ammonia, nitric oxide and sulfur dioxide will
be limited to concentrations not to exceed those specified in the latest publication of the
Threshold Limit Values by the American Conference of Governmental Industrial Hygenists
(ACGIH) (see 4.4.6.1.2).
3.4.7 Gear train.
3.4.7.1 Transmission. The transmission shall have not less than ______ forward and one
reverse gear ranges and must have a gear range capable of meeting the performance specification
as stated herein. The transmission shall be provided with ______ power takeoff openings. Net
torque capacity of the transmission shall be not less than ______ Newton-meters (N m) and net
input power rating shall be not less than ______ horsepower (HP) (see 4.4.7.1).
3.4.7.2 Power takeoff. Power takeoff(s) shall be of HP rated capacity to operate powered
equipment. Controls to operate the power takeoff(s) shall be located in the cab accessible to the
seated driver. A caution plate reading, "DO NOT OPERATE VEHICLE AT HIGHWAY
SPEEDS WITH POWER TAKEOFF ENGAGED", shall be provided and installed in a location
readily visible to the seated driver (see 4.4.7.2).
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