ETC Fos/4 Series User manual

ETC Installation Guide

fos/4 Panel Double-Yoke

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Product information and specifications subject to change. ETCintends this document to be provided in its entirety.

7471M2110 Rev C Released 2022-02

Overview

The fos/4 Panel Double-Yoke allows you to support two small

fos/4 Panel fixtures (fos4PL8 or fos4PD8) with a single yoke.

Remove the yokes from the fos/4 Panel fixtures and install the

Double-Yoke using the instructions that follow.

WARNING: In addition to primary suspension,

attach a safety cable (or other approved safety

device) to the fixture. Safety cables must be

rated to support ten times the fixture weight.

Consult local standards to ensure that safety

cables meet all requirements.

Follow all safety precautions described in the

fos/4 Panel User Manual

, which is available for

download at etcconnect.com.

AVERTISSEMENT : En plus de la suspension

principale, fixez une chaîne de sécurité (ou tout

autre dispositif de sécurité homologué) au

projecteur. Les chaînes de sécurité doivent être

en mesure de supporter dix fois le poids du

projecteur. Consultez les normes locales pour

vous assurer que les câbles de sécurité

respectent toutes les exigences.

Tilt-lock

Yoke bolt

Remove the fos/4 Panel Yokes

Tool required:13 mm socket wrench

1. Beginning on one side of the first fixture, turn the tilt-lock counter-

clockwise until you can remove it from the yoke.

2. Use the 13 mm socket wrench to remove the yoke bolt.

3. Repeat steps 1 and 2 on the opposite side of the fixture, and then

remove the yoke from the fixture.

4. Remove the plate, washers, spacer, and tilt-lock bolt.

Keep yoke

hardware

Keep the parts that you removed for use in installing the Double-

Yoke:

•

Tilt-lock bolt

•

Plate

•

Washers

•

Spacer

•

Tilt-lock

•

Yoke bolt

6. Retain the fos/4 Panel yoke for future re-installation.

7. Repeat steps 1–6 on the second fixture.

ETC Installation Guide

Double-Yoke

Double-Yoke Page 2 of 3 ETC

Hardware Reference

The list below includes the kit hardware (clutch-plate covers and clutch-plate cover bolts), and the

yoke hardware that you remove from the two standard yokes and use to secure the double-yoke.

Image Name Part Number Quantity Description

Clutch-plate cover 7470A4022 2 fos/4 Panel clutch-plate cover

Clutch-plate cover

bolt HWM1136 4 Bolt M4 x 10 mm

Plate 7471A3063 4 fos/4 Panel pressure plate

Spacer HWM960 4 Spacer 16 mm OD x 10 mm ID x

10mm L

Tilt-lock HWM8014 4 fos/4 Panel tilt-lock

Tilt-lock bolt HWM2344 4 Bolt M8 x 25 mm CARR CL-8.8

Washer (large) HW5126 4 Flat washer 5/16 .375 x .875 x .078

Washer (small) HWM2351 4 M8 washer 8.4 mm ID x 16 mm OD

x 1.6mm

Yoke bolt HWM2350 4 Bolt M8 x 25 mm

ETC Installation Guide

Double-Yoke

Double-Yoke Page 3 of 3 ETC

Position

clutch-plate

cover and

secure with

bolts

Install the Double-Yoke

Tools required:Phillips screwdriver, 13 mm socket wrench

1. Position a clutch-plate cover on one end of the yoke, and use a

Phillips screwdriver to secure it with two clutch-plate cover bolts.

Repeat the process to attach a clutch-plate cover to the other

side of the yoke.

2. Position the two fixtures facedown on a flat surface, aligned as

they will be when attached to the Double-Yoke.

3. Position the Double-Yoke to align with the sides of the two

fixtures.

Attach

top fixture

Use the original yoke hardware to loosely attach the Double-

Yoke to one side of the top fixture, and then repeat the action on

the other side of the top fixture.

•

Make sure that the plate is captured by both the tilt-lock bolt

andthe yoke bolt.

•

Make sure that the head of the tilt-lock bolt is behind the

circularclutch plate on the fixture (see image below).

Circular clutch plate

5. Repeat step 4 for the bottom fixture.

6. Use the 13 mm socket wrench to tighten all the yoke bolts, securing the Double-Yoke to the two

fixtures.

7. Tighten the tilt-locks to secure the fixture positions within the Double-Yoke.

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