QSC Audio FLR8000, FLR9000 User Manual

Service Bulletin

Title: WideLine rigging hardware torque adjustment
Bulletin #: WLX0001 Issue Date: December 15, 2008

Passionate About Sound

Description

When subjected to continuous or severe vibration during transport, it is possible for some of the screws attaching the rigging
hardware to the WL3082 and WL212-sw (WideLine 8 Series) or WL2102-w and WL218-sw (WideLine 10 Series) to loosen. Since this
could cause difficulty in rigging or unwanted rattles, QSC recommends that system owners inspect all rigging hardware before the
next system use.

This bulletin applies to enclosures manufactured before December 2007. These units will have serial numbers with a date code of
1107 or earlier (the date code comprises the first four digits of the serial number, in

Models Affected: WideLine 8 Series and WideLine 10 Series
Bulletin Revision: B
Production Range: All before December 2007 (serial number 1107xxxxx and earlier)

mmyy

format).

Instructions

Tools and materials required

• Power drill-screwdriver with adjustable torque clutch

• Torque wrench—set to 60 in-lb (5 ft-lb) or 7 N-m

• Loctite® QuickStix™ 248™ medium-strength threadlocker stick
(for technical information, availability, distribution, etc., go to
http://www.loctite.com)

• T25 and T30 TORX™ bits; Phillips head (cross) bits

Procedure

This is the factory recommended method for tightening the rigging hardware. To access the rigging screws on the WideLine 10
cabinets (WL2102-w and WL218-sw) it will be necessary to remove all rigging knuckles.

CAUTION: The torque required to properly tighten the screws is only 60 in-lb (5 ft-lb) or 7 N-m; this is considerably less than is used
in installing a spark plug or many other common mechanical assemblies. Use an appropriate small torque wrench to ensure that you
neither overtighten nor undertighten the screws.

1. WL2102-w and WL218-sw only: Remove the knuckle from the rigging channel by first unscrewing the TORX cap head screw

and then sliding the knuckle out (see Figure 1). Note the orientation of the knuckle, to ensure proper reinstallation at the
completion of this procedure.

2. All models: Remove the TORX screws that hold the rigging channel or channels to the enclosure (two screws and one channel

on the WL2102-w; four screws and one channel on the WL218-sw; four screws and two channels on the WL3082; six screws
and two channels on the WL212-sw). Apply a dab of Loctite QuickStix 248 to the thread at the end of each screw. See Figure 2.

3. All models: Reinstall the screws through the rigging channel into the enclosure, using a power drill-screwdriver at its

torque setting to lightly secure the screws.

On the WideLine 8 WL3082 and WL212-sw cabinets, attach the anchors of the rigging pin lanyards as shown in Figure 2 when
you reinstall the screws.

Figure 1. Removing the knuckle from the rigging channel.

lowest

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1WLX0001 rev. B

WL2102-w

WL3082

WL218-sw

WL212-sw

Figure 2. Removing the rigging channel screws. Apply threadlock,
then reinstall and torque them. The WL2102-w has two screws on
each side, while the WL218-sw and WL3082 have four, and the
WL212-sw has six. On the WideLine 8 cabinets, the anchors of the
rigging pin lanyards must be attached as shown when the screws
are reinstalled.

➜ Continued

4. WL3082 and WL212-sw only: Remove the screws in the rigging bars (three screws on the WL3082; two screws on the
WL212-sw). See Figure 3. These screws may have either TORX or Phillips heads. Apply a dab of Loctite QuickStix 248 to the
thread at the end of each screw. Reinstall and lightly secure the screws using a power drill-screwdriver at its lowest torque
setting.

5. All models: Use the torque wrench, set to 60 in-lb or 7 N-m, to tighten the screws to the proper torque.

6. WL2102-w and WL218-sw only: Reinstall the knuckle into the channel, while making sure its orientation is correct (Figure 4).
Fasten the cap head screw to the knuckle.

7. All models: Repeat steps 1 through 6 with the rigging channel or channels on the other end of the loudspeaker enclosure.

8. WL2102-w and WL218-sw only: Remove all twelve screws on the input plate/rear rigging point and apply Loctite QuickStix

248.

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2 WLX0001 rev. B