User's Manual Part 1

Table Of Contents

Page 4-30

3 Mar 2017

23-15-29

SYSTEM DESCRIPTION AND INSTALLATION MANUAL

JetWave™ System

(e) KRFU Installation

1 Make sure that the thermal pads are attached to the bottom of the KRFU. Refer to

Section 4.6. KRFU.

2 Before proceeding with the KRFU installation, connect the WR42 waveguide to 2.92

mm coaxial connector adapter to KRFU J4 RF RX.

a The adapter allows connection between the Rx WR-42 waveguide port on the

KRFU and a 2.92mm coaxial connector.

b The WR42 waveguide side of the adapter has a mechanical flange interface

with four 0.117 inch (2.97 mm) diameter through holes for mating with KRFU J4.

c The WR42 waveguide to 2.92 mm coaxial connector adapter is shown in Figure

4-15.

Figure 4-15. WR42 Waveguide to 2.92 mm Coaxial Connector Adapter

3 Remove the protective covers from the KRFU J4 and WR42 waveguide to 2.92 mm

coaxial connector. Visually inspect connector ends and make sure that there is no

debris in the cavities.

4 Install an MS29513-016 O-ring and mount the adapter onto KRFU J4 with four

screws (recommended screw is Honeywell part number 90403559). Make sure the

O-ring is seated correctly in the KRFU TX waveguide flange when mating the

waveguide as there is no retaining mechanism. If maintenance is conducted which

requires uncoupling the waveguide from the KRFU TX port, inspect the flange for

dirt or debris and O-ring for damage or if it is misshapen. If required, replace the

O-ring and clean the waveguide flange interfaces. Torque the four screws in an X

pattern. Torque per Honeywell provided aircraft specific installation instructions. Do

not use power tools to torque the screws.

5 Attach the KRFU assembly to the KRFU interface mount with fasteners and tighten.

Selection of KRFU attachment fasteners are the responsibility of the installer

Minimum torque recommended to compress the thermal pad is 22 in-lb (2.5 Nm).

Minimum torque shall be validated by the installer for the attachment screws

Draft as of 31 May 2017