Removal and Replacement of Relay Bracket Potentiometers

TM 11-5825-271-34

(1) Refer to figure 3-4. Install replacement

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

potentiometer on the relay bracket (1). Ensure that the

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

locating pin (12) is properly seated in the hole m relay

bracket, and that the terminal designations (stamped on

3-10. Removal and Replacement of Relay Bracket

the relay bracket) correspond with the potentiometer (15)

Potentiometers

terminals.

a. Removal. Proceed as follows.

(2) Secure potentiometer (15) to the relay

(1) Refer to figure 3-2. Remove two screws (1),

bracket (1) using one lockwasher and one nut

and flat washers (2) securing the relay bracket assembly

(3) Solder all tagged wires to potentiometer (15)

(15) to the control panel (17). Retain the attaching

and slide rubber sleevings over soldered connections

hardware for reassembly.

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

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

(17) partially closed, aline the mounting holes in the relay

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

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

swing the control panel assembly out.

panel.

(3) Refer to figure 3-4. Slide rubber sleevings

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

off terminals on potentiometer (15) to be removed.

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

(4) Tag and unsolder all wires connected to the

control panel (17)

potentiometer (15).

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

(5) Remove one nut and one lockwasher

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

securing the potentiometer (15).

b. Replacement. Proceed as follows.

Figure 3-4. Removal and Replacement of Relay Bracket Components.

remove relay K1 Retain the attaching hardware for

3-11. Removal and Replacement of Relay K1

reassembly.

a. Removal. Proceed as follows.

b. Replacement. Proceed as follows.

(1) Refer to figure 3-2. Remove two screws (1)

(1) Refer to figure 3-4. Position relay K1 (7) on

and flat washers (2) securing the relay bracket assembly

the relay bracket (1) and aline the two mounting holes.

(15) to the control panel (17). Retain the attaching

(2) Install and tighten two screws (6), flat

hardware for reassembly.

washers (8), lockwashers (10), and nuts (11) to secure

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

relay K1 (7).

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

(3) Solder tagged wires and diode CR1 (9) to

swing the control panel assembly out.

relay K1 (7).

(3) Refer to figure 3-4. Tag and unsolder diode

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

CR1 (9) and all wires connected to relay K1 (7).

(17) partially closed, aline the mounting holes in the relay

(4) Remove two screws (6), nuts (11), lock-

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

washers (10), and flat washers (8) securing relay K1 (7);

3-6