The hydraulic system provides hydraulic pressure to energize the suspension system, operate the winch, ejector,
and apron cylinders. Some hydraulic components are briefly described below.
Hydraulic Return Line Filter
This filter (Figure 1), located behind the bowl area, on top of the engine, filters out contaminants from the hydraulic
oil returning to the hydraulic reservoir.
Main Hydraulic Accumulator
The main hydraulic accumulator (Figure 1) is located on the left side of the filter support. It is charged with nitrogen
to 1,750-1,850 psi (12,066-12,756 kPa) at 70°F (21°C) and provides immediate response to temporary needs of the
SPRUNG mode that the compensating pump cannot meet. A charge and gauge assembly is mounted on the
accumulator (Figure 1) and is used to check accumulator charge status and to charge the accumulator (Figure 1).
Figure 1. Main Hydraulic Accumulator.
Hydraulic High-Pressure Filters
Two high-pressure filters (Figure 2) located directly in front of the operator's compartment, filter hydraulic fluid from
the main hydraulic pump while it is enroute to the Directional Control Valve (DCV) bank.
The hydraulic reservoir (Figure 2) is located beneath the operator's compartment and its check and fill point is located
in the operator's compartment. It has a capacity of 32 gal. (121 L) of OE/HDO-10.