Table I. Leading Particulars

TM 55-4920-335-14

1-5. CAPABILITIES. The Test Stand is capable of operating

1-7. MAJOR ASSEMBLIES. The Test Stand consists of the

under temperature conditions ranging from -29 degrees (-20oF)

following major assemblies and components :

Housing

to 54 degrees C (130oF). It will operate at a relative humidity of

Assembly (1, figure 1-1). Running Gear and Frame (7, figure

95 to 100 percent at an operating temperature of 54 degrees C

1-1), Gasoline Engine (1, figure 1-3), High Pressure Pump (8,

(130F) and function efficiently at altitudes from sea level to

figure 1-3), Control Panel (3, figure 1-3), High Pressure Filter

6000 feet. The Test Stand can deliver hydraulic fluid at the

(5, figure 1-3), Low Pressure Filter (7, figure 1-3), Fuel Tank (4,

rate of 10 gpm at pressures to 3000 psi and, with reduced flow,

figure 1-4), Hydraulic Reservoir (1, figure 1-4) and Electrical

5 gpm or less at pressures from 3000 psi to 5000 psi. The

System (figure 1-5).

Test Stand will function satisfactorily when its operating plane

is at an angle of 8-1/2 degrees in any direction from horizontal.

1-8. HOUSING ASSEMBLY. The welded steel housing (1,

figure 1-1) encloses and protects the Test Stand components

1-5.1.

LEADING PARTICULARS.

The major leading

from inclement weather. The housing is completely removable

particulars of the Test Stand are listed in Table I.

by releasing latches (9, figure 1-1) at the front and rear.

Handles (8, figure 1-1) are provided at the four corners to aid in

1-6. GENERAL DESCRIPTION. The Test Stand (figures 1-1

removal of the housing. Hooks (3, figure 1-1) are located at

and 1-2) is a self-contained, mobile, hydraulic testing unit

the front and rear for hanging hose. These hooks may be

enclosed in a steel, weather resistant housing mounted on a

folded flat against the Test Stand when not in use. Hinged

trailer assembly. The trailer is equipped with leaf spring

access doors are provided in the housing as follows : Door (5,

suspended wheels, hand lever operated parking brakes, and a

figure 1-1) permits access to battery, air cleaner, engine oil

tow bar to permit towing with a vehicle. Doors are provided to

filter, and left side of engine, and also contains a handbook

permit access to all components within the housing.

Table I. Leading Particulars

Trailer and Housing

Construction .........................................................................................................................................................................................Welded Steel

Running Gear ..............................................................................................................Leaf Spring Suspension and Pneumatic 6.00 x 9 Tires

Brake ............................................................................................................................................................................ Mechanical Type Hand Set

Steering ......................................................................................................................................................................................Knuckle Type Pivot

Housing.....................................................................................................................................Welded Steel Weather Resistant Hinged Doors

Hydraulic System

Fluid Reservoir

Construction ........................................................................................................................................................... Hot Rolled Pickeled Steel

Capacity................................................................................................................................................................................... 28 U.S. Gallons

Fluid Specification ................................................................................................................................................................................. MIL-H-5606

High Pressure Pump

Type.......................................................................................................................Axial Piston Variable Volume, Pressure Compensated

Delivery .............................................................................................................................................................................. 10 gpm at 3000 psi

5 gpm at 5000 psi

Filters

Low Pressure ..................................................................................................................................Replaceable Element Type AN 6236-3

High Pressure ...............................................................................................................................Replaceable Element Type AN 6235-4A

Power Plant

Gasoline Engine ...........................................................................................................36 HP, 4 cyl, 4 cylinder, V type, Air Cooled, 13 Gallon

Fuel Tank, 12 volt ignition system, 55 ampere battery size 24S.

Operating Range

Altitude ................................................................................................................................................................................Sea Level to 6000 Feet

Ambient Temperature............................................................................................................................................29o C (-20oF) to 54o C (130oF)

Humidity ........................................................................................................................................................................................95 to 100 Percent

Deflection ........................................................................................................................................................ 8-1/2 o in any plane from horizontal

Physical Data

Overall Length ....................................................................................................................................................................................79-3/4 Inches

Overall Width .......................................................................................................................................................................................56-3/8 Inches

Overall height......................................................................................................................................................................................53-1/4 Inches

Weight (dry) ..........................................................................................................................................................................................2050 Pounds

1-3