radiance 7201111 User manual

FOLLOW SPOTLIGHT
INSTRUCTION MANUAL
4350 McKinley Street • Omaha, Nebraska 68112 USA
Tel [phone] • Fax [phone] • www.strong-lighting.com
Equipment Type 7201111 • Rev. February 2006

RAD/01
PREFACE
THE STRONG RADIANCE SPOTLIGHT is an AC follow spot complete with
lamphouse, igniter, power supply, optical system, and color boomerang. The light source is a 850 watt
DC double-ended metal halide lamp. Lamps are not supplied with the unit, but are readily available
from theatrical supply distributors.
  ANELLIPTICAL REFLECTORisdesignedtooperateinaxedpositionwiththe
lamp mounted horizontally in the lamphouse. The lamp socket is adjustable in relation to the optics to
permitpositioningthearctotheopticalcenterlineofthereector.Theigniteriscontainedwithinthe
lamphouse enclosure.
THE POWER SUPPLY mounts below the lamphouse and comes equipped with a three-
wire AC line cord that connects to a 115 volt, single phase 60 Hertz AC line. A 230 volt, 50 Hertz
exportmodelisalsoavailable.Thepowersupplyisprotectedbya15amperefuse,andoperationof
the power supply is controlled by the ON/OFF toggle switch on the lamphead.
ADJUSTMENT CONTROLS for positioning the metal halide lamp are located below
a cover at the rear of the lamphouse. This control mechanism permits concise positioning of the lamp
inrelationtothereectorandalsoallowsthelamptobecenteredbothverticallyandhorizontallyon
theopticalcenterofthereector.
AN INTERNALLY WIRED FAN is used in the followspot lamphouse and operates
from the AC control circuit. This blower is wired through a time delay relay to permit the lamp to reach
full intensity more quickly. A thermal switch will interrupt operation of the spotlight if the fan fails to
move enough air to adequately cool the lamphouse.
NOTICE
Themetalhalidelampcontainsmercuryandexpired
lampsshouldnotbediscardedinanordinaryrefuse
container. Conform to local Hazardous Materials
ordinances or refer to www.lamprecycle.org.

Vertical
Masking
Shutter
Fade-Out
Control Iris
Horizontal
Masking
Shutter
Lamp Power
Supply
Tilt Friction
Control Knob
Optical System
Access Panel
Transport Cover,
Color Frames
Color
Boomerang
Tripod Floor Stand
(optional)
Spot Size Control and
Spot Focus Knob
Spot Size Control Brake
Color Frame
Color Release Lever
Color Selector Arm
Yoke & Spigot
Assembly
RAD/02
Lamphouse/Fade-Out
Access Panel

RAD/03
SETTING UP FOLLOW SPOT
THE RADIANCE FOLLOW SPOT is shipped in sections which must be assembled.
Theyokeandspigot(trusspin)areincludedwiththeheadassembly;thetripodoorstandisafactory-
supplied option.
THE SPIGOT is a standard 28mm (1-1/8 inch) diameter for truss mounting. The spigot
will also seat into the top of the optional tripod base stand. Height of the unit may be determined by the
user, but when adjusting the tripod base, make certain the unit remains stable. Setting the tripod base
toanextremeoperatingheightcontributestomakingthespotlightassemblytopheavyandunsteady.
THE RADIANCE COLOR BOOMERANG mounts to the front of the unit on two
studs (see Figure 6, Item 15) aligning to keyhole slots at the top of the housing, and is attached to the
spotlight at the bottom of the housing by a thumbscrew. Make certain the thumbscrew is secured.
PROVISION IS MADE for “stowing” color frames for shipment. When stowed, the
color frames are protected from breakage or other damage caused by transporting the spotlight. To
enable operation of the color boomerang, detach the lower thumbscrew securing the hinged portion
of the boomerang housing and fold the panels upward. This allows the color frames to drop into a
“deployed” position for normal operation. An upper thumbscrew allows locking the hinged panels in the
upperposition.Toagainstowthecolorframesfortransport,raiseallsixcolorframestotheirengaged
position, loosen the upper lockscrew, unfold the boomerang housing, and secure in the lower position.
CHECKTHE EQUIPMENT DATAPLATE to determine voltage and current requirements;
verifycorrectplugandreceptacleconguration.DONOTconnectthepowercordtotheAClineuntil
completing the installation of the metal halide lamp.
“Stowed” “Deployed”
Housing
Lockscrew
Mounting
Thumbscrew

RAD/04
LAMP INSTALLATION AND OPERATION
REMOVE THE REAR TOP COVER PLATE by releasing the four chromed captive
quarter-turn screws and lifting the plate from the top of the lamphouse enclosure. Loosen the two
thumbscrews(A)anddismountthestainlesssteelheatshieldtoexposethelampsocket(B&C).
DO NOT TOUCH the quartz portion
of the metal halide lamp with bare fingers! Any
ngermarksaccidentallyplacedonthelamp envelope
must be removed with alcohol before lighting the bulb;
skin oils will rapidly burn into the envelope material
and shorten lamp life. Wear clean cloth gloves or grasp
the envelope using a clean cloth towel when handling
the lamp. Make certain that the threaded brass adapter
(C)andthelongerofthetwoigniterleadsarermly
seated into the lamp support collet (B).
THE METAL HALIDE LAMP is
polarized(positive&negative)andthelargercathode
(-) end cap (D) screws into the adapter (C). Different
thread sizes insure that the lamp cannot be reversed.
The anode (+) end cap (E) includes a thumb nut.
SECURE THE LAMP by
grasping the cathode end cap by the knurled
surface and turning clockwise. Tighten
rmly,butusenohandtools(pliers,etc.).
INSTALL THE RING TERMINAL at the end of the shorter of the two igniter leads
over the threaded pin of the anode end cap (E) and secure using the thumb nut supplied with the lamp.
Tightensecurely,butdonotusehandtoolsorapplyexcessiveforce;overtighteningcandamagethe
connection of the end caps to the quartz envelope of the lamp. Replace the stainless steel heat shield
and the lamphouse top cover plate; secure all fasteners.
CHECK THE SPOTLIGHT DATA PLATE for the required input voltage. Plug the AC
cord from the spotlight into an appropriate AC outlet. Place the POWER switch in the “ON” position
and the lamp will ignite. The cooling fans in the power supply will start immediately, and the lamp
cooling fan will start after a 30 second delay. The delay will allow the lamp to reach its normal operating
temperature and intensity more rapidly.

RAD/05
LAMP INSTALLATION AND OPERATION(continued)
ONCE THE LAMP has reached full brightness, project a spot on a wall or similar
vertical surface opposite the spotlight position. Loosen the two thumbscrews and remove the adjustment
mechanismcover(F)fromthebackofthelamphousetoexposethelamppositioningcontrols.
Focus Screw
Focus Lock Screw
Positioning
Lock Screw
LOOSEN THE TWO positioning lock screws to permit moving the entire mechanism on
the back of the lamphouse. Look at the projected spot and observe the movement of the brightest point
of light inside the spot as the mechanism is moved. If no distinct bright spot is visible, rotate the focus
screwinthecenterofthemechanismuntilaclearlydened“hot”spotisseen.Movethemechanism
until the “hot” spot is centered in the spot. Tighten the two positioning lock screws. Rotate the focus
screwtodiminish the “hot” spot andcreatea uniform “at” pattern oflightinthe projected spot.
WHEN TRANSPORTING THE FOLLOW SPOT, or if the lamp may be subjected to
a hard shock when moving to another location, remove the metal halide lamp from the lamphouse by
reversing the installation procedures. If the positioning control section of the lamp adjustment is not
changed, the lamp should be able to be replaced without repeating the aligning procedure.

OPERATION OF OPTICAL SYSTEM
THE SPOT SIZE CONTROL (ZOOM) is located on the right side of the optical system
protrudingfromaslotinthespotlighthousing.Avariationofspotsizesfromfulloodtoasmallspot
canbeobtainedbymovingthezoomcontrolfromoneextremetotheother.Beamintensityisincreased
bythisopticalsystemwhenreducingfromoodtospot,andmaximumintensityisreachedwhenthe
zoomisintheextremeforwardposition.Depressingathumbleveradjacenttothecontrolpermitsfree
movement forward and back, and releasing the thumb lever locks the control in position.
ROTATING THE ZOOM KNOB operates the spot focus control. When making an
adjustment, rotate the focus control until the sharpest edge is obtained on the projected spot. Moving
the large lens to its center of travel and then adjusting for a sharp edge should give satisfactory results
for the full movement of the lens system.
THE THREE BEAM-SHAPING CONTROL LEVERS are located immediately in front
of the fade-out lever and project through the top of the optical system housing. The iris control is the
center lever. When this lever is to the left (viewing the spotlamp from the rear), the largest aperture is
provided. Smaller apertures are obtained as the lever is moved to the right.
THE MAXIMUM FLOOD SPOT is obtained with the iris control lever to the left (away
from operating side) for the large aperture and with the zoom control moved as far as possible toward
the rear. Smaller sized spots are projected as the zoom control is moved forward. Most of the spot
sizesneededwillbeproducedwiththeirisinitsmaximumopenposition.
FOR A “HEAD SPOT,” or any spot size smaller than can be obtained with the zoom
controlinitsextremeforwardposition,shifttheiriscontrollevertotheright(towardoperatingside)for
asmalleraperture.Theiriscontrollevershouldalwaysbereturnedtoitsextremeleftpositionbefore
the zoom control is again moved to obtain larger spots.
THE HORIZONTAL MASKING SHUTTER LEVER is the
second (from the rear) lever projecting through the top of the optical system
housing. The horizontal masking shutter blades are operated by this lever to
shape the projected spot to a rectangle, strip spot, or for dousing.
THE VERTICAL MASKING SHUTTER LEVER is the lever
in front of the iris control. The vertical masking shutter blades are operated by
this lever to narrow the projected spot from full width to complete douse.
RAD/06
50%
50%

RAD/07
OPERATION OF OPTICAL SYSTEM (continued)
THE DISENGAGED, or fully open position of both masking shutter levers is to the
extremeleft(awayfromoperatingside).Varyingdegreesofmasking,fromfullyopentocomplete
cutoff, are obtained by moving the levers to the right (toward operating side)
THE ANGLE OF THE MASKING SHUTTER BLADES can be adjusted to compensate
forthehorizontalandverticalprojectionangle.Ifthespotlightisinstalledatanextremehouse-right
or house-left position, the projected edges of the masking blades may not align horizontally with the
apron,orverticallywiththeproscenium.Removethetopaccesscoverstoexposethehorizontal(rear)
and vertical (front) masking blade assemblies. When the blades are in their full “open” positions,
adjusting tabs are accessible above and below the horizontal blades, and to the left and right of the
vertical blades. Move these tabs to position the masking blades at the desired angle.
THE FADE-OUT MECHANISM AND DOUSER CONTROL is the single lever
projecting through the top of the optical system housing near the back of the unit. This lever controls
the amount of light from full intensity when the lever is to the left, to complete fadeout and douse when
theleveristotheextremeright.
CAUTION
ULTRAVIOLET RADIATION is emitted when the metal halide lamp is
operating.Wearprotectiveclothingandgogglesorglasseswhenadjusting
theshutterbladesorperforminganyservicewiththelamphouseoroptical
system covers removed.

RAD/08
HANDLING THE FOLLOW SPOT
GENERALLY THE BEST POSITION for the operator to stand is near the center of
the follow spot, on the right hand side, although the angle of tilt and the size of porthole may alter the
position for the most convenient operation.
EACH OPERATOR will, after a few minutes of operation, generally develop his or her
own system and preferred position for operating the follow spot.
THE VERTICAL TILT TENSION KNOB is located on the side of the housing adjacent
to the fade-out lever. Counterclockwise rotation of the knob frees the tilt tension, and clockwise rotation
applies tension. The individual operator can set his or her desired degree of tension.
OPERATION OF COLOR BOOMERANG
SEE THE “SETTING UP SPOTLIGHT” SECTION in the preceding pages of this
manualfordetailsofthe“Stowed”and“Deployed”congurationsoftheRadianceboomerang.Itis
recommended to “stow” the color frames whenever transporting the spotlight.
  THE COLOR BOOMERANG is equipped with six color lter gels containing the
following colors in order from rear to front: (1) Amber, (2) Flesh Pink, (3) Daylight Blue, (4) Light
Sky Blue, (5) Primary Blue, (6) Light Red. Keep the darkest or most dense colors (red, dark blue) to
the front of the boomerang, farthest from the bulb.
THE SIX COLOR ARMS are mounted to the side of the boomerang. To insert a color
disc in the light beam, move the proper color arm downward until the latch engages. To release a color
disc, raise the color release lever, or engage another color, thereby canceling the previous color.
TO REMOVEACOLOR DISCASSEMBLY, release the arm and lift the color holder ring
from the arm bracket. Toattachacolorgeltoacolorframe,spraytheatsurfaceofthering(without
thechannelclip)withanaerosoladhesive.Centertheringoveraprecut12by12inch(30x30cm)
gel,andpresstheadhesive-coatedsideontothegel.Trimtheexcessgelmaterialandinstallthecolor
frame into the boomerang.Onlythesixabove-notedcolorsaresuppliedwiththeboomerang;additional
colors,andcolortemperaturereductionlters,areavailablefromtheatricalsupplydealers.

RAD/09
MAINTENANCE
REMOVABLE COVERS, secured with quarter-turn fasteners, are located above the
lamphouse and optical system. To clean the lenses, remove the two front optical system top covers.
Thecenterlens,thebacksurfaceofthelargelens,andtheheatlterglasscanbecleanedeasilythrough
this opening. Using a good grade of alcohol and piece of lens tissue (facial tissue can be used as a
substitute), gently wipe both sides of each lens until the surfaces are clean. To clean the front surface
of the large lens, slide the lens carriage to the full forward position. The front surface is then readily
accessible through the front of the housing.
THE REFLECTOR should be cleaned periodically with a clean, soft lint-free cloth to
removeanydustfromthereectingsurface.USENOABRASIVES.Cleantheenvelopeofthelamp
in the same manner before replacing the lamphouse cover.
THE INSIDE of the lamphouse, lens mechanism and the fan should be cleaned
periodically, depending on the dust conditions at each installation. The fan impeller blades and inlet
grilles need cleaning to remove the dust buildup that accumulates over a period of time.
  THEFRAMINGSHUTTERDRIVEDISCS(seeFigure3,Items12&13)andtheroller
bearings (Item 11) are lubricated with white lithium-base grease. If replacing the grease, use a similar
type(typicaldroppoint380°F/190°C).Donotoverlubricatesinceexcessivegreasewillattractdust
and other contaminants.

Ref.
Desig. Part No. Description
B1 72424000 Lamp Blower, 115 V.AC, 50/60 Hz.
- 7145000 Delay Timer, 115 V.AC
B1 7102002 LampBlower,230V.AC,50/60Hz.(Export)
- 7145001 Delay Timer, 230 V.AC
F1 8121001 Fuse, 15 A. Standard
- 2468721 Fuseholder
S1 1161023 Toggle Switch, ON/OFF
S2 3161134 Thermal Switch
TB1 2162003 Barrier Strip, (4) Terminal
- 7175000 Igniter
- 7198023 Power Supply
LAMPHOUSE SCHEMATIC DIAGRAM
RAD/10

RAD/11
FIGURE 1
Attach Item 6 with Loctite®480

PARTS LIST
Figure 1
Item Part No. Description
1 7201095 Lamphouse Top Cover Plate
- 410050B  MountingScrew,10-32x1/2"PanHead
2 23833000 Concealed Pull (2 req’d.)
3 7201096 Optical System Top Cover Plate
4 7201097 Front Top Cover Plate
5 5198423 Spring Cam Latch (8 req’d.)
6 51371000 LightBafe,BlackRubber(6req’d.)
7 7201108 Fade-Out/Douser Assembly (see Figure 2)
8 7201099 Cover Panel, Off-Operator Side
- 410050B  MountingScrew,10-32x1/2"PanHead
9 7175000 Igniter Assembly
10 7201102 Yoke Pivot Bracket (2 req’d.)
11 410050A Screw,10-32x1/2"FlatHead
12 7200974 Side Handle (4 req’d.)
- 4080506  MountingScrew,8-32x1/2"PanHead
13 7201109 Beam Shape Control Assembly (see Figure 3)
14 7201103 Rear Lens Assembly (see Figure 4)
15 7201104 Front Lens Assembly (see Figure 5)
16 7200799 End Cover Bracket (8 req’d.)
17 7201086 Front Cover Plate
18 7201110 Color Boomerang Assembly (see Figure 6)
19 7201106 Zoom/Focus Control Assembly (see Figure 7)
20 5151011 ShoulderScrew,1/4"x3/4"Thrd.10-24
21 7201092 Extrusion,OperatorSide,Bottom
22 7201093 Extrusion,Off-OperatorSide,Bottom
23 7201091 Extrusion,OperatorSide,Top
24 7201090 Extrusion,Off-OperatorSide,Top
25 7201100 Bottom Cover Panel
26 25062000 Pulley (2 req’d.)
- 5220506  ShoulderScrew,PulleyAxle
- 7201181  FocusCable(WireRope)&SpringAssembly(seePage23)
27 7201105 Yoke Assembly (see Figure 8)
28 7201088 Focus Cam
- 7201170  CamSpacerMount(Axle)
29 7198023 Metal Halide Power Supply, 850 Watt; 115/230 V.AC, 50/60 Hz.
30 7201144 Power Supply Housing, Welded Assembly
- 7201178 Power Supply Assembly (Items 29,30,32,33)
RAD/12

PARTS LIST, Figure 1 (continued)
Item Part No. Description
31 72424000 Blower (B1), 115 V.AC, 50/60 Hz.
- 7145000 Delay Timer, 115 V.AC
31 7102002 Blower(B1),230V.AC,50/60Hz.(Export)
- 7145001 Delay Timer, 230 V.AC
- 7201068 Blower Mounting Bracket
- 88253000 Blower Power Cord
32 1161023 Toggle Switch, “POWER” (S1)
33 4110041 Cord Grip
- 3140007 Power Cord, 115 V.AC, 15 A. (Domestic)
34 7201087 Tilt Lock Quadrant
- 4100629  MountingScrew,10-32x5/8"ButtonHead
35 7201098 Cover Panel, Operator Side
- 410050B  MountingScrew,10-32x1/2"PanHead
36 7201085 Rear Cover Plate
37 7201067 Lamp Heat Shield, Right
- 3161134 Thermal Switch (S2; not shown)
- 7201066 Lamp Heat Shield, Left (not shown)
38 7201187 Lamp Positioning Control Assembly (see Detail below)
39 31875000 Thumbscrew (2 req’d.)
40 7201078 Lamp Adjust Cover
41 7201071 Counterweight (4 req’d.)
42 7201122 ReectorMountingPlate
- 7201157  Reector(notshown)
43 7130000 Metal Halide Lamp, 850 Watt EMARC
44 7201083 Lamp Heat Shield, Top
- 4151425 Knob, Thumbscrew
- 4100750  Screw,10-32x3/4"SocketHead
45 7201094 Rear Top Cover Plate
- 410050B  MountingScrew,10-32x1/2"PanHead
RAD/13
Part No. Description
37985000 Thumb Screw (2 req’d.)
15010000 Compression Spring (2 req’d.)
65150000 Fender Washer (2 req’d.)
65153000 Focus Lockscrew
65154000 Nylon Locking Ball
65959000 FocusScrew&BearingAssembly
7201123 Casting, Adjustment Mechanism
8148008 Snap Ring, Collet Retaining
7201123
8148008
65150000
65959000
65153000
37985000

RAD/14
FIGURE 2
Item Part No. Description
1 7200969 Dimming Iris
2 7201077 Dimmer Support Plate
3 7200972 Linkage Arm
4 7201076 Operating Lever
5 4100500 Screw,10-32x1/2"(3req’d.)
6 2151032 ShoulderScrew,1/4"
7 5151011 ShoulderScrew,3/4"
8 18194000 ShoulderScrew,1-1/4"
9 4118002 Hexnut,10-24NyLoc
10 10260000 CompressionSpring,1-1/8"
Item Part No. Description
11 4257104 Flatwasher,1/4"(4req’d.)
12 5158041 SpringWasher,1/4"
13 5240137 Spring Clip (5 req’d.)
14 7201074 Standoff,.5"x.75"(2req’d.)
15 7201075 Standoff,.625"x.625"(3req’d.)
16 7200504 HeatFilter&RingAssembly
17 3135012 Nutsert, 10-32 (4 req’d.)
18 4100310 Screw,10-32x5/16"(7req’d.)
19 7128001 Handle Grip
20 5158029 Compression Spring
Assembly No. 7201108
Arrows point to REAR
of spotlight

RAD/15
FIGURE 3
Assembly No. 7201109

RAD/16
PARTS LIST
Figure 3
Item Part No. Description
1 7201130 Mounting Bracket, Welded Assembly
2 7201131 Chopper Slide Rod (4 req’d.)
3 7201132 Framer Slide Block (4 req’d.)
4 7201133 Framer Shaft Bracket (2 req’d.)
5 4080624 Screw,8-32x5/8"PanHead(4req’d.)
6 4088007 Hexnut,8-32K-Lock(4req’d.)
7 7201112 ThreadedPin,1/4"Dia.(4req’d.)
8 7201135 Chopper Blade, Vertical (2 req’d.)
9 7201136 Chopper Blade, Horizontal (2 req’d.)
10 7198905 Standoff,1-3/8"Long,Thrd.8-32(4req’d.)
11 7201142 Roller Bearing (8 req’d.)
12 7201137 Framer Disc, Vertical
13 7201138 Framer Disc, Horizontal
14 4080506 Screw,8-32x1/2"(2req’d.)
15 7128001 Handle Grip (2 req’d.)
16 4250374 Screw,1/4-20x3/8"PanHead(4req’d.)
17 5110004 Retaining Clamp (2 req’d.)
18 4080181 Screw,8-32x3/16"PanHead,Self-Tapping(4req’d.)
19 7198904 Standoff,5/8"Long,Thrd.8-32(4req’d.)
20 7151007 ShoulderScrew,3/16"x3/8"Thrd.8-32(8req’d.)
21 7201169 Iris&MountingPlateAssembly
- 7200548 Iris (only)
22 4080754 Screw,8-32x3/4"PanHead(2req’d.)
23 4080375 Screw,8-32x3/8"PanHead(10req’d.)
24 4080316 SetScrew,8-32x3/16"(4req’d.)
25 5158041 SpringWasher,1/4"(4req’d.)

RAD/17
FIGURE 4
Assembly No. 7201103
Item Part No. Description
1 7201113 Plate, Welded Assembly
2 7200774 Small Lens
3 24059000 Linear Bearing (2 req’d.)
4 8148008 Retaining Ring (4 req’d.)
5 7201179 Cam Pin
6 4108007 Hexnut,10-32K-Lock
Flat side of Lens mounts
ush with rear surface of
Item 1 Plate Assembly.
Adhere to Plate with RTV
736 Silicone Sealant.

RAD/18
FIGURE 5
Item Part No. Description
1* 7201115 Flange, Welded Assembly
2* 41305000 Large Lens
3 5104004 Linear Bearing (2 req’d.)
4 8148008 Retaining Ring (4 req’d.)
* Order 7201104 Assembly
Assembly No. 7201104