Remove the panel retaining hardware from the side panel of the test stand, and remove the side panel.
Open the battery compartment door. Disconnect the battery cables from the binding battery posts. Lift the
battery drawer retainer hook, pull out the battery drawer, and remove the batteries. Push the battery drawer back in.
Remove the nut and washer that secure the wiring at the rear of the binding post that is to be replaced. On
part number 7458-2, remove the retaining nuts from the rear of the binding post, and remove the binding post from the
battery compartment. On part number 7558-4, remove the jam nut, round nut, washer and knob from the binding post,
and remove the binding post from the battery compartment.
Reverse the procedures of steps (1) through (4) to install the replacement binding post.
Removal and Replacement of Terminal Board.
Remove the battery compartment assembly from the test stand. (Refer to paragraph 2-12.)
Remove the two 1/4-20 screws, lockwashers, and nuts that attach the terminal board, and remove the
Remove the retaining hardware from the rear of the binding posts and remove the binding posts.
Reverse the procedures of steps (1) through (3) to install the replacement terminal board.
INSTRUMENT PANEL ASSEMBLY (fig 2-4).
Description. The instrument panel assembly contains electrical meters and associated controls used to measure
electrical values during various tests of external components on the test stand. It is hinged at the bottom for convenient
access to electrical connections. Repair at the direct support maintenance level is limited to test, remove, repair, and
adjust defective switches, potentiometers, and meters.
Removal and Replacement of Meters.
Disconnect main power from the test stand.
Remove the panel retaining screws from the top and sides of the instrument panel.
Swing the instrument panel down.
Change 1 3-12