Removal and Replacement of Resistor Bracket Potentiometers

TM 11-5825-271-34

b. Replacement. Proceed as follows

3-8. Removal and Replacement of Resistor Bracket

(1) Refer to figure 3-3. Install replacement

Potentiometers

potentiometer (4) on the resistor bracket (2). Ensure that

a. Removal. Proceed as follows

the locating pin (1) is properly seated in the hole in

(1) Refer to figure 3-1 Disengage two captive

resistor bracket, and that the terminal designations

screws (12) on the control panel assembly (13) and

(stamped on the resistor bracket) correspond with the

swing the control panel assembly out.

potentiometer terminals.

(2) Refer to figure 3-3. Slide rubber sleevings

(2) Secure potentiometer (4) to the resistor

off terminals on potentiometer (4) to be removed.

bracket (2) using the attaching hardware. Replace

(3) Tag and unsolder all wires connected to the

adjustment set nut (3) if either R5 or R6 is installed.

potentiometer (4).

(3) Solder all tagged wires to potentiometer (4)

(4) Remove all attaching hardware securing the

and slide rubber sleevings over connections.

potentiometer (4).

(4) Refer to figure 3-1. Swing the control panel

NOTE

assembly (13) in and tighten two captive screws (12).

When removing potentiometers R5 and R6,

it is necessary to remove the adjustment set

nut (3) before removing the attaching

hardware.

Figure 3-3. Removal and Replacement of Resistor Bracket Potentiometers.

(5) Raise the control panel (17), the relay

3-9. Removal and Replacement of Relay Bracket

bracket assembly (15) is now free to be removed

Assembly

b. Replacement. Proceed as follows.

a. Removal. Proceed as follows

(1) Refer to figure 3-2. With the control panel

(1) Refer to figure 3-1. Disengage two captive

(17) partially closed, position the relay bracket assembly

screws (12) on the control panel assembly (13) and

(15) so that the shafts of the potentiometers are directed

swing the control panel assembly out.

towards the bushings (14) in the control panel.

(2) Refer to figure 3-2. Slide rubber sleevings

(2) Aline the mounting holes in the relay bracket

off the potentiometer terminals on the relay bracket

assembly (15) with the two holes in the control panel

assembly (15).

(17).

(3) Tag and unsolder all wires connected to the

(3) Install and tighten two screws (1) and flat

components on the relay bracket assembly (15) from

washers (2) to secure the relay bracket assembly (15) to

sources outside the assembly.

Leave all rubber

control panel (17).

sleevings on wires for reassembly

(4) Swing the control panel (17) out, and solder

(4) Swing the control panel (17) in and remove

all tagged wires to the relay bracket assembly (15) Slide

two screws (1) and flat washers (2) securing the relay

rubber sleevings over the connections.

bracket assembly (15) to the control panel.

rubber sleevings over the connections.

3-5