PREPARATION FOR STORAGE. - TM-55-4920-405-13-P0035

TM 55-4920-405-13&P

(6)

Remove the cap from the filler neck of the

(6)

Charge the battery at 30 amperes for 30

test stand reservoir.

minutes only if it is to be installed during

(7)

Connect the 1/2 inch outlet hose assembly

cold weather.

to the 1/2" OUTLET port at the front end

(7) Install the battery in the test stand, noting

of the test stand. Remove the coupling

the following:

from the free end of the hose assembly.

(a) Inspect the battery cables, clamps,

Insert the free end of the hose assembly

and hold- down. Clean, if dirty: re-

in the reservoir filler neck. Take care

place, if worn or corroded. New bat-

not to damage the strainer screen.

tery cables insure efficient battery

(8)

Start up the engine of the test stand, using

operation.

the procedures of paragraph 2-3.

(b) Install the battery in the test stand.

Turn FLOW CONTROL VALVE (12, fig-

Make sure that terminal posts and

(9)

battery connections are clean and

ure 2-1) fully counterclockwise to open.

(lo)

tight, and that connections are not

Set VOLUME control (14) to the position

that produces a 2 GPM indication on FLOW

reversed, Reversed battery connec-

INDICATOR GPM (11).

tions will damage the charging system.

(11)

Set HIGH PRESS BYPASS VALVE control

Check with a DC voltmeter.

(8) After the battery has cooled, or within one

(19) to CLOSED.

(12)

Turn COMPENSATOR SHUTOFF VALVE

month of installation, check the battery

(17) clockwise to close until some pres-

liquid level. If necessary, add clean,

sure is shown on FLUID PRESSURE GAGE

cold tap water through the flip cap vent

(5). Check the fluid flow until there is no

tubes to bring the liquid to the right level.

trace of air in the fluid.

(13)

Shut down the test stand. Set HIGH PRESS

BYPASS VALVE (19) to OPEN. Turn

Before filling the fuel tank of the test stand,

VOLUME control (14) counterclockwise to

the fully closed setting. Turn FLOW CON-

always ground the fuel tank and the fuel

TROL VALVE (12) clockwise to the fully

container. This prevents sparking. Do not

closed setting.

fill the fuel tank near flames or hot glowing

(14)

Remove the 1/2 inch outlet hose assembly

objects.

from the reservoir. Install the cap on the

g. Fuel System. Fill the fuel tank of the test

filler neck of the reservoir. Install the

coupling removed from the hose assembly.

stand with fuel, Specification MIL-G-3056 or MIL-

Disconnect the hose assembly from the

F-5572. Make sure that fuel shutoff cock (figure

3-2) is open. Check the fuel strainer for leaks.

1/2" OUTLET port of the test stand, and

install the dust plugs on the cable assembly.

h. Hydraulic System. Prepare the hydraulic

(15)

Check the test stand for hydraulic leaks.

system as follows:

3-2. PREPARATION FOR STORAGE.

(1) Remove the drain plug from the low pres-

sure filter and drain any corrosion pre-

a. Fuel System. Drain the gasoline from the

ventive compound from the hydraulic sys-

engine fuel system as follows:

tem. Then, install the drain plug.

(2) Set all test stand valves according to

WARNING

paragraph 2-2c.

(3) Fill the hydraulic reservoir of the test

To prevent sparks, always ground the fuel

stand with about 20 gallons of hydraulic

container and the test stand fuel tank be-

fluid.

fore draining gasoline. Do not drain

(4) Remove the 1/2 inch cap from the 1/2

gasoline near flames or glowing hot objects.

inch tee going to the hydraulic pump case.

This tee is behind the left rear access

(1) Make sure that the engine of the test stand

door of the test stand near the reservoir

is cool.

drain valve. Fill the hydraulic pump case

(2) Make sure that engine shutoff cock (figure

with hydraulic fluid. Install the 1/2 inch

3-2) is open.

cap on the tee.

(3) Drain the gasoline into a suitable container.

(5) Open the bleed valve on low pressure

(4) Leave the fuel tank cap off for about 15

filter assembly (1, figure 1-3). When a

minutes to let gasoline fumes escape.

steady flow of hydraulic fluid shows that

Start up the engine and let it run until it

(5)

all traces of air have been removed, close

stops by itself.

the bleed valve.

(6) Install the cap on the fuel tank.

NOTE

b. Hydraulic System. Drain the hydraulic system

as follows:

If you have trouble bleeding the hydraulic

system, check the filter element of the

(1) Get a container that can hold about 30

l o w pressure filter assembly.

gallons.

3-3