Figure 1-5. Common Vehicle Components Location (Cont)
(15) SPARE TIRE RETAINER.
Provides a stowage location for the spare tire. The
operation of the spare tire retainer is controlled from the hydraulic manifold.
(16) HYDRAULIC MANIFOLD. The hydraulic manifold contains the valves and controls
used to raise and lower the cab, spare tire, and vehicle suspension.
(17) BACK-UP HYDRAULIC PUMP. This manual pump serves as a backup for the
hydraulic manifold. This pump is used in the event that there is not enough air
pressure in the air tanks to operate the air/hydraulic power unit.
(18) AIR/HYDRAULIC POWER UNIT. Converts air pressure into hydraulic pressure to
operate the cylinders used to raise and lower the cab, spare tire, and vehicle