Section V. LRU KNOB(s) REMOVAL AND REPLACEMENT PROCEDURES

TM 11-5830-263-20&P

SECTION V

LRU KNOB(s) REMOVAL AND REPLACEMENT PROCEDURES

TYPICAL

VIS LRU

POINTER

Figure 3-28. VIS LRU(s) Knob

CAUTION

WHEN REMOVING OR REPLACING KNOBS, HOLD KNOB FIRMLY WITH ONE

HAND WHILE ROTATING SCREW WITH THE OTHER HAND SO AS TO NOT OVER

TORQUE THE SHAFT OF THE SWITCH.

3.11.

MCS, FFCS, AND MOS KNOB REMOVAL AND REPLACEMENT (Fig. 3-28)

The following procedures describe how to remove and replace control knobs on the MCS, FFCS, and

MOS. The control knobs (piece parts) utilized by the MCS, FFCS, and MOS are identical

a. Removal

1. Turn knob to a counterclockwise position until it comes to a full stop. The luminescent pointer

should be pointed down and to the left.

2. Using a socket head screw key remove socket head screw (1) and washer (2) from shaft (4).

3. Slide knob (3) from shaft (4).

b. Replacement

1. Slide knob (3) fully onto shaft (4) and turn counterclockwise until knob comes to a full stop.

The luminescent pointer should be pointed down and to the left.

2. Place washer (2) onto socket head screw (1) and install onto shaft (4).

3. Using a socket head screw key tighten socket head screw (1) onto shaft.