TM 9-2320-279-10-2
Equipment Differences and Technical Data (Cont)
Table 1-4. M984A1 Equipment Data (Cont)
Item
Model
M984A1*
AUXILIARY EQUIPMENT
Arctic Kit -- Engine
Deleted
Chemical Alarm
Decontamination Unit
Gas Particulate Filter Unit
Machine Gun Ring
Radio Installation Kit
Rifle Mounting Kit
Retrieval Device -- Lifting capacity 25,000 lb
* Vehicle may or may not be equipped with any of these items
depending on mission, climate, or other factors.
Table 1-5. M984A1 Load Classification
Model
Unloaded
With Loaded Trailer
(ton)
(ton)
M984A1
19
C-48 (towing loaded M985)
Section III.
TECHNICAL PRINCIPLES OF OPERATION
Vehicle Operation Systems
functional systems. They are the electrical system, air system, and hydraulic
system. Refer to Volume 1 for explanation of the overall operation of the
functional systems.
to Volume 1 for explanation of the overall operation of the electrical system.
1-33. AIR SYSTEM. The air system (fig. 1-24) consists of an
engine driven air
compressor (1) and four air reservoirs (2, 3, 4, and 5).
The air system includes the necessary valves and air lines to control the
vehicle's air operated parts. Pressurized air from the air compressor is passed
through the air dryer (6) to the quick buildup reservoir (2). The air dryer
removes dirt and moisture from the pressurized air. For Non-A2 and A2R1 model
vehicles, air from reservoir goes to the throttle treadle (7). Depending on how far
the throttle treadle is depressed, 0 to 60 psi (0 to 414 kPa) is supplied to the
engine throttle air cylinder (8) and to the transmission modulator (9). This air
pressure controls the vehicle speed. For A2 and A2R1 model vehicles, vehicle
speed is controlled electronically.
Change 7