Service Bulletin
WideLine rigging hardware torque adjustment
Title:
Bulletin #:
WLX0001
Issue Date:
December 15, 2008
Models Affected: WideLine 8 Series and WideLine 10 Series
Bulletin Revision: B
Passionate About Sound
Production Range: All before December 2007 (serial number 1107xxxxx and earlier)
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 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
Figure 1. Removing the knuckle from the rigging channel.
• 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 lowest
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.
Continued on next page ➜
WLX0001 rev. B
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WL3082
Figure 3. Removing the rigging bar screws. Apply
threadlock, then reinstall and torque them. The WL3082
has three screws on each side, while the WL212-sw has
two.
WL212-sw
Figure 4. WL2102-w and
WL218-sw only: Correct
orientation of the knuckle
for reinstallation.
Figure 5. Removing the 12 rear angle plate screws. Apply threadlock,
then reinstall and torque them.
➜ Continued
9. WL2102-w and WL218-sw only: Reinstall the screws using a power drill-screwdriver at its lowest torque setting to lightly
secure the screws. Torque all of them to 60 in-lb or 7 N-m (Figure 5).
Quality review: Testing rigging hardware
All models: Rig the boxes together as they will be hung. Verify that all the parts are correctly oriented and tightly secured as
described in the procedure above (including the two front tubes and the rear angle plates). Vary the splay of each box to verify that
the knuckles are properly installed.
Regular inspection
All models: QSC recommends that the rigging hardware and attachments be inspected for damage and tightness before every lift.
Secure all loose components and replace any damaged parts before suspending the enclosure.
Loctite is a registered trademark, and QuickStix and 248 are trademarks, of the Henkel Corporation.
TORX is a trademark of Camcar LLC.
WLX0001 rev. B
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Contact information
If you need any further information regarding this service procedure, please contact QSC Technical Services at the addresses or numbers below.
Telephone:
1-800-772-2834 (within USA only)
+1 (714) 957-7150
Fax:
Skype ID:
E-mail:
+1 (714) 754-6173
qscaudio
Web sites:
Postal and parcel address:
QSC Audio Products, LLC
Technical Services Group
1665 MacArthur Blvd.
Costa Mesa, CA 92626 USA
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