TracVision HD7 Operating instructions

Brand: TracVision

Model: HD7

Type: Operating instructions

This manual is also suitable for

TracVision HD7 LNB

KVH, TracVision, and the unique light-colored dome with dark contrasting baseplate are registered trademarks of KVH Industries, Inc.

All other trademarks are property of their respective companies. The information in this document is subject to change without notice.

TracVision HD7 LNB

Replacement Instructions

Technical Support

If you need technical assistance, please contact KVH Technical Support:

North/South America, Australasia:

Phone: +1 401 847-3327

Email: [email protected]

Europe, Middle East, Africa, Asia-Pacific:

Phone: +45 45 160 180

Email: [email protected]

The following instructions explain how to replace

the LNB in a TracVision

HD7 antenna.

NOTE: Your antenna might have parts that differ from

those pictured in this document. Such differences have no

bearing on the instructions unless noted otherwise.

Tools Required

This procedure requires the following tools:

• #2 Phillips screwdriver

• 5/16" open-end or box wrench

• 7/16" open-end or box wrench

• 11/32" open-end or box wrench

•Flush cutters

• 7 mm open-end wrench (supplied in kit)

• #2 Phillips torque screwdriver or torque

wrench with a 11/32" hex bit set to 21 in.-lbs

• Torque wrench with:

5/16" bit (11 in.-lbs)

7/16" bit (15 in.-lbs)

7 mm hex bit (11 in.-lbs)

Figure 1: HD7 LNB

Step 1 - Disconnect Power and Remove the

Radome

Follow the steps below to disconnect power and

remove the radome.

a. Turn off the ACU. Then unplug both the ACU

power cable and the SWM power inserter

power cable to disconnect all power from the

antenna. Follow all shipboard lockout/tagout

procedures, where applicable.

b. Using a #2 Phillips screwdriver, remove and

discard the #10-32 screws securing the radome

to the baseplate (see Figure 2).

c. Carefully lift the radome straight up until clear

of the antenna assembly and set it aside in a

safe place.

CAUTION

To prevent injury, be sure to disconnect all

power from the antenna before proceeding.

Power must remain disconnected for the

duration of this procedure.

Important!

If you keep the radome topside, secure it with a

lanyard to prevent it from falling overboard.

Do not place the radome on a hot steel deck – the

heat may warp the radome.

Figure 2: Radome Screws

Radome

#10-32

Screw

(x6 or 8)

Baseplate

Step 2 - Replace the LNB

Follow the steps below to replace the LNB.

a. If you are replacing a Tri-Americas

LNB, use

a 5/16" wrench to remove and discard the two

#6-32 lock nuts and washers securing the Hall

Effect magnet fixture to the gyro bracket. Set

aside the magnet fixture (see Figure 3).

If you are replacing a standard LNB, skip to

step b.

b. Using an 11/32" wrench to hold the nut in the

lower right LNB eyelet, remove the P-clip,

screw, and nut using a #2 Phillips screwdriver

(see Figure 4). Then carefully remove the P-clip

from the skew cable wrap and discard the

P-clip, screw, and nut.

c. Cut and discard the tie-wraps securing the RF

cables to the lower left eyelet and to the back of

the LNB (see Figure 4 and Figure 5).

Figure 3: Hall Effect Magnet

Figure 4: P-Clip, Screw, Nut, and Tie-Wrap

Figure 5: Tie-Wrap on the Back of the LNB

d. Cut and discard the two tie-wraps securing the

scuff plate and discard the plate. Then cut and

discard the tie-wrap securing the RF cables (see

Figure 6).

e. Using a 7/16" open-end wrench, disconnect the

four RF cable connectors from the LNB (see

Figure 6). Remove the RF4 connector, first, and

then remove RF3, RF2, and RF1 connectors in

sequence.

f. Reconnect the RF1 connector, first, and then

reconnect the RF2, RF3, and RF4 connectors in

sequence.

g. Using a 7 mm open-end wrench (supplied in kit),

remove and discard the four hex nuts that

secure the LNB studs to the feed (see Figure 7).

h. Remove and discard the LNB.

i. Using the 7 mm open-end wrench, secure the

new LNB’s studs to the feed with four new

M4 hex nuts (see Figure 7). Then tighten the

nuts to 11 in.-lbs torque.

j. Using a 7/16" open-end torque wrench,

reconnect the four RF cables to the LNB and

orient the cables as shown in Figure 8.

Reconnect the RF1 connector, first, and then

reconnect the RF2, RF3, and RF4 connectors in

sequence.

Ensure the cable wires each lie flat against the

previous connector, as shown in Figure 8, or the

scuff plate will not seat correctly.

Tighten the connectors to 15 in.-lbs torque.

k. Secure the RF2, RF3, and RF4 cables together

with a tie-wrap (supplied in kit) through one of

the two LNB mounting holes and between RF1

and RF2 (see Figure 6).

l. Place a new scuff plate (supplied in kit) onto the

LNB (see Figure 6).

m. Secure the scuff plate to the LNB with two

tie-wraps (supplied in kit) through the two LNB

mounting holes (see Figure 6).

Figure 6: Scuff Plate, RF Connectors, and Tie-Wraps

Figure 7: Hex Nuts Securing the LNB to the Feed

Figure 8: Angle of RF Connectors

n. Secure the RF cables to the back of the LNB and

lower left eyelet with tie-wraps (supplied in kit)

(see Figure 9 and Figure 10).

o. Secure the skew cable wrap to the LNB with a

new P-clip (supplied in kit) (see Figure 10).

Ensure the P-clip is mounted on the inside of the

LNB, facing the reflector, and angled about 5°

toward the skew motor.

p. Using a #2 Phillips screwdriver and an 11/32"

wrench, secure the P-clip to the back of the

bottom right-hand LNB eyelet with a new #8-32

screw and hex nut (supplied in kit). Tighten the

screw to 21 in.-lbs torque.

q. If you are replacing a Tri-Americas LNB, use a

5/16" wrench to secure the Hall Effect magnet

fixture you removed earlier to the gyro bracket

with two new #6-32 lock nuts and washers (see

Figure 3 on page 3). Position the magnet fixture

1/8" from the LNB using a shim (supplied in kit)

(see Figure 11). Then tighten the nuts to

11 in.-lbs of torque while holding the fixture in

place.

If you are replacing a standard LNB, skip to

step r.

r. Rotate the LNB through its full range of motion

at all elevation angles to ensure that there is no

interference, that the skew cable wrap is

correctly oriented, and that the scuff plate and

RF connectors are aligned and installed

correctly.

Figure 9: Tie-Wrap on the Back of the LNB

Figure 10: P-Clip, Screw, Nut, and Tie-Wrap

Figure 11: Using a Shim Between the Magnet Fixture and LNB

Step 3 - Install Radome and Apply Power

Follow the steps below to reinstall the radome and

reconnect power.

a. Inspect the inside of the antenna to make sure

you have not left any tools or debris inside.

b. Reinstall the radome onto the antenna (see

Figure 12). Secure the radome with six or eight

new #10-32 screws (supplied in kit).

c. Reconnect power to the antenna.

Step 4 - Update the Software

Follow the instructions in the TracVision HD7

Installation Guide or User’s Guide to update the

system software to the latest version, then test

antenna operation. If the problem persists, contact

KVH Technical Support.

The replacement procedure is complete!

Figure 12: Radome Screws

Radome

#10-32

Screw

(x6 or 8)

Baseplate

TracVision HD7 Operating instructions

Brand: TracVision

Model: HD7

Type: Operating instructions

This manual is also suitable for

TracVision HD7 LNB

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TracVision HD7 Operating instructions

This manual is also suitable for

TracVision HD7 Operating instructions

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