the source of the required hardware must be provided.
Do not use manifolds that are not authorized.
Model HCT-10 Stationary Hydraulic Test
Stationary hydraulic test stands, such as the
Model HCT-10, are not part of the equipment
allowance for most squadrons. Normally, they are
issued to air stations and aircraft carriers for use by
the supported squadrons.
NOTE: The following information is for
training purposes only. Do not use it as
operating instructions for testing hydraulic or
pneumatic components. For specific operat-
ing instructions, you should refer to the
applicable operational handbook, service, and
overhaul instructions, or MIM.
The Model HCT 10 test stand (fig. 4-16) is used
to bench test aircraft hydraulic and pneumatic
components, such as engine-driver hydraulic pumps,
electrohydraulic flight control assemblies,
double-acting hydraulic cylinders, pneumatic and
hydraulic relief valves, hydropneumatic accumu-
lators, and other components.
The test stand consists of a nonportable cabinet
assembly that contains a hydraulic system, a
pneumatic system, and an electrical system. It must
be connected to externally supplied electrical power,
water, and compressed air. The cabinet assembly
consists of a welded steel enclosure on a rigid base.
Hinged doors and removable panels provide access to
the interior. The test component work area is located
below the center instrument and control panel. The
bottom surface of the test component work area and
the test chamber is shaped like a sink with perforated
metal trays. The test chamber is made from a 1/4-inch
steel plate with a hinged door containing a safety-type
Most of the hydraulic and pneumatic system
operating controls are located on a sloping panel
along the front of the cabinet. The indicators are
located on a panel above the work sink and the rear
panel of the test chamber. The electrical system
controls and indicators are located on a panel on the
right-hand side of the cabinet. A partition separates
Figure 4-16.Model HCT-10 hydraulic and pneumatic component test stand.