Skytron ST9 Series User manual

REV 8/05
STELLAR ST9 SERIES
EXAMINATION LIGHTS
OPERATORS • MAINTENANCE • PARTS

Page 1
TITLE PAGE
EQUIPMENT LABELS AND SPECIFICATIONS .................................................................................... 2
MODEL IDENTIFICATION...................................................................................................................... 3
SECTION I OPERATION........................................................................................................................ 4
SECTION II MAINTENANCE .................................................................................................................. 6
SECTION III ADJUSTMENTS ................................................................................................................ 8
A. Lighthead Pitch Adjustment .......................................................................................................... 8
B. Lighthead Roll Adjustment ............................................................................................................ 9
C. Vertical Travel .............................................................................................................................. 9
D. Lighthead Horizontal Rotation Adjustment.................................................................................. 10
SECTION IV REPLACEMENT PARTS ............................................................................................... 11
1. Ceiling Mount Assembly.............................................................................................................. 12
2. Balance Mechanism Assembly ................................................................................................... 14
3. ST9 Lighthead Assembly ............................................................................................................ 16
4. Portable Stand Assembly............................................................................................................ 18
5. Wall Mount Assembly.................................................................................................................. 22
Although current at the time of publication, SKYTRON'S policy of continuous development makes this
manual subject to change without notice.
TABLE OF CONTENTS
REV 8/05
Originalprinting ............................... 4/03
Revised ...........................................5/04
Revised ...........................................8/05

Page 2
RECOMMENDED TOOL LIST
1 PIN PUNCH SET 1/8", 1/4" & 3/16"
1 SETOF PHILLIPS SCREWDRIVERS
1 SET OF FLAT BLADE SCREWDRIVERS
1 DIGITALLEVEL
1 METRIC,L-TYPEALLENWRENCHSET1.5-8mm
1 TRUERMSMULTIMETER
FUSE TYPE 1.75 AMP, FAST ACTING (FA)
CLASS I DEFIBRILLATION PROOF, TYPE B EQUIPMENT- IPX4 RATED.
INTERNALLY POWERED EQUIPMENT
FOR DRY LOCATIONS
UNIT TO BE USED ONLY IN SPECIFIED ENVIRONMENTAL CONDITIONS
TEMPERATURE: 15˚ - 30˚ C (60˚ -85˚ F)
ATTENTION, CONSULT MANUAL FOR FURTHER INSTRUCTIONS.
INDICATES SPECIAL USER ATTENTION.
AC VOLTAGE
HUMIDITY: 30% - 60% RELATIVE HUMIDITY, NON CONDENSING
TYPE B
EQUIPMENT
EQUIPMENT LABELS AND SPECIFICATIONS
ENTELA CERTIFIED
T
O UL2601-1
CAN/CSA601.1, IEC 60601-2-46

Page 3
MODEL IDENTIFICATION
360˚
360˚
90˚
20˚
80"
2030mm
320˚
70.5"
29"
360˚
320˚
31.5"
3.75"
180˚
360˚
73"
90˚
20˚
10.25"
260mm
9"
229mm
4.75"
121mm
6"
152mm 70"
1778mm
360˚
ST9W
S
T9S
S
T9
360˚
17"
432mm
WEIGHT: 42 LBS.
20.5"
521mm
50˚
30˚
35.5"
902mm
76.5"
1943mm
86.5"
2195mm
32.25"
819mm
55.5"
1410mm
320˚

Page 4
Figure 1-1. Model ST9 Lighthead
2. Usingthepositioninghandleortheoptional
sterile handle, place the lighthead in the desired
position. Rotate the intensity control to select the
desired intensity. Refer to figure 1-2 for full posi-
tioningcapabilities.
Model ST9, Ceiling Mount
1. Turn the power to the light fixture "ON" at
the wall switch if applicable. Turn the power to the
lighthead "ON" at the lighthead mounted Intensity
control. See figure 1-1.
NOTE
To prolong bulb life, the Sof-Start bulb
protectioncircuitwillcauseaslightdelay
beforethe bulb willilluminate.
3. Whenthelightisnolongerrequired,turnthe
power to the light "OFF" at the lighthead mounted
intensity control, return the lighthead to its full
uprightpositionandturnthepower"OFF"atthewall
switch if applicable.
Model ST9W, Wall Mount
1. Turn the power to the light fixture "ON" at
the fixture "On/Off" switch located on the wall
mount housing. See figure 1-3. Turn the power to
thelighthead"ON"atthelighthead mountedInten-
sity control. See figure 1-1.
NOTE
To prolong bulb life, the Sof-Start bulb
protectioncircuitwillcauseaslightdelay
beforethe bulb willilluminate.
Figure 1-3. Model ST9W
2. Usingthepositioninghandle,placethelight-
head in the desired position. Rotate the intensity
control to select the desired intensity. Refer to
figure 1-3 for full positioning capabilities.
Figure 1-2. Model ST9
SECTION I OPERATION
OFF
MAX
OFF
MAX
I
NTENSITY
CONTROL
OPTIONAL
STERILE
HANDLE
POSITIONING
HANDLE
360˚
360˚
360˚
90˚
20˚
320˚
180˚
360˚
360˚
MAIN
POWER
SWITCH
ON
OFF
90˚
320˚
20˚

Page 5
3. Whenthelightisnolongerrequired,turnthe
power to the light "OFF" at the lighthead mounted
intensitycontrol,returnthelightheadtoitshorizon-
tal position against the wall and turn the power
"OFF" at the fixture "On/Off" switch.
Model ST9S, Portable Stand
1. Plug the power cord into 120 VAC outlet.
2. Using the positioning handle, place the
lightheadin the desiredposition. Rotate theinten-
sitycontroltoturnthepowertothefixture"ON"and
select the desired intensity.
NOTE
To prolong bulb life, the Sof-Start bulb
protectioncircuitwillcauseaslightdelay
beforethe bulb willilluminate.
Figure 1-4. Model ST9S
CAUTION
Exercisecautionwhenrollingthestand
light toavoid gettingcaughtonobstacles
laying on the floor. Avoid a tripping
hazard.
CAUTION
To ensure proper circuit grounding
reliability and protection, always plug
the fixture into a properly circuit
protected electrical outlet.
Sterilization
Recommendedsterilizationparametersforoptional
sterilizablehandle:
a. Prevac, 270° F, 4 minutes
b. Gravity, 250° F, 30 minutes
c. Flash, 270° F, 3 minutes
Always consult current AORN journal recommen-
dations for proper sterilization procedures.
360˚
17"
432mm
WEIGHT: 42 LBS.
20.5"
521mm
50˚
30˚
35.5"
902mm
76.5"
1943mm
86.5"
2195mm
32.25"
819mm
55.5"
1
410mm
320˚

Page 6 SECTION II MAINTENANCE
General
To insure proper operation and extend the life of
your SKYTRON examination lighting system, the
following preventive maintenance procedures are
recommended.
NOTE
All repairs should be made using only
authorized SKYTRON replacement
parts.
Daily Maintenance
Daily or between cases, the light fixture should be
wipeddownwithamildcleaningsolutionwhichwill
not affect the painted or acrylic parts.
• Before attempting cleaning, be sure power to the
lighthead is "OFF" and the fixture has sufficiently
cooled.
•Avoid the use of cleaning solutions which contain
high concentrations of alcohol, ethelene glycol,
phenol, iodophors, or glutaraldehyde based disin-
fectants. Some degree of staining, pitting, and
discoloration may occur if these are used.
Alwaysconsultwith themanufacturerof theclean-
ing agent for proper application and use. Always
spot test on an inconspicuous area before use.
• Use plexi-glass cleaners, DO NOT use alcohol
based cleaners on the acrylic diffusers.
• Avoid using excessive amounts of spray clean-
ers. Leakageoffluidsintothelightheadinteriormay
cause corrosion of electrical components.
Semi-Annual (6-months) Maintenance
•Clean diffuser/Filter Assembly
• DO NOT operate light without the filter/diffuser in
place.
•Lubricate as necessary
•Check input and bulb voltage
•Check all fastening hardware
•Perform all necessary adjustments
Adjustments
As part of a regular preventive maintenance pro-
gram, it is suggested that a check of the various
positioning axes be made to verify proper tension
adjustments. Ifanylightheaddriftisnoticed,allthat
isusuallynecessaryisaminoradjustment. Adjust-
ments can be accomplished following the proce-
dures in the adjustment section of this manual.

Page 7
WARNING
DONOTattempttoremovethebulbby
pullingontheglasssurfaceorendcap.
This may cause the bulb to break off in
your hand.
3. Using caution not to touch the reflector
surface, hold the bulb by the base and pull it out.
See figure 2-2. Slightly working the bulb back and
forth may aid in bulb removal.
Figure 2-2.
NOTE
Halogen bulbs are sensitive to body
oils. DONOT handletheglass surface
ofbulbasbodyoilfromyourfingerscan
create a "hot spot" and may cause the
bulb to burn out prematurely.
4. Holdingthebulbbythebase,plugitdirectly
intothesocket. DONOTtouchtheglassportionof
thebulbor reflectorsurfacewith yourfingers. This
can best be done by using the plastic wrapper that
the bulb is packaged in or a clean cloth wrapped
around the base of the bulb when installing.
NOTE
To extend the life of the bulb reflector
surface, it should NOT be included in
normal cleaning. It should be cleaned
only if absolutely necessary. Clean
gentlywithaclean,damp,softclothand
a mild soap solution. NO abrasives.
5. Replace the diffuser/filter assembly and
secure with the diffuser 1/4 turn screw. DO NOT
over tighten screw.
Bulb Replacement
To replace the Halogen bulb, use the following
procedure:
1. Ensureelectricalpowertothelightis"OFF"
and the bulb has cooled before changing.
2. Holdthediffuser withonehand, loosenthe
1/4 turn screw and lower the diffuser assembly.
See figure 2-1.
Figure 2-1.
DIFFUSE
R
1/4TURN
SCREW
BULB
REFLECTOR
SURFACE
END
CAP
BASE

Page 8 SECTION III ADJUSTMENTS
Checkthelight fixture axis tensionadjustments by
movingthelightheadthroughitsfullrangeoftravel.
See figure 3-1. All axis should move freely yet
maintain any position without drifting. If an adjust-
ment is required, use the following procedures.
NOTE
All fasteners are metric thread and
require metric tools.
WARNING
Disconnect electrical power to the
fixture before attempting adjustments.
A. Lighthead Pitch Adjustment.
1. Locatetheadjustmentholeinthelighthead
yoke. See figure 3-2.
Figure 3-1. Adjustment Axis
Figure 3-2. Lighthead Pitch Adjustment
2. Rotate the lighthead until a set screw is
visiblethroughthe adjustmentholeand loosenthe
set screw with an allen wrench.
3. Leavetheallen wrenchfirmlyseated inthe
setscrew;thiswillholdtheadjustmentnutcaptive.
Slightly rotate the lighthead clockwise (viewed
from the yoke side) to decrease tension and coun-
terclockwise to increase tension, as necessary.
4. When proper tension has been achieved,
retighten set screw and remove the allen wrench.
A
B
C
D
A
B
C
D
OFF
MAX
OFF
MAX
YOK
E
ADJUSTMENT
HOLE
ADJUSTMENT
NUT
SET
SCREW

Page 9
C. Vertical Travel
The vertical travel spring tension is set at the
factory(ceilingandwallmountmodels)andshould
not need adjusting. However, if an adjustment is
necessary, use the following procedure. See fig-
ure 3-4.
Figure 3-3. Lighthead Roll Adjustment
2. Rotate the lighthead until a set screw is
visablethroughtheadjustmentholeandloosenthe
set screw with an allen wrench.
3. Leave the allen wrench firmly seated in the
setscrew;thiswillholdtheadjustmentnutcaptive.
Slightly rotate the lighthead clockwise (viewed
from the yoke side) to decrease tension and coun-
terclockwise to increase tension, as necessary.
4. When proper tension has been achieved,
retighten set screw and remove the allen wrench.
B. Lighthead Roll Adjustment
1. Locate the adjustment hole in the bottom of
the support arm collar. See figure 3-3.
CAUTION
Be sure electrical power is "OFF"
SUPPORT ARM
COLLAR
ALLEN
WRENCH
BALANCE
MECHANISM
SPRING
ADJUSTMENT
NUT
LOWER
SUPPORT
ARM
PIN
PUNCH
ADJUSTMENT
SLOT
Figure 3-4. Vertical Travel Adjustment
1. Pull the lighthead downward until the ad-
justmentnutisvisiblethroughtheadjustmentslotin
the support arm.
2. Insert a pin punch through the adjustment
slotandintooneoftheholesintheadjustmentnut.
Usingthepinpunch,turntheadjustmentnutclock-
wise to increase the tension, counterclockwise to
decrease the tension.
3. Test vertical travel and repeat adjustment
procedure as needed.

Page 10
Bulb Voltage
TheST9seriesisequippedwithavoltagecompen-
sation device that will deliver the necessary bulb
output with a voltage range of between 110VAC
and 120VAC. Routine bulb voltage adjustments
are not necessary if supply voltage falls within this
range.
ADJUSTMENT
NUT
ADJUSTMEN
T
HOLE
LOWER
SUPPORT ARM
UPPER
RADIAL ARM
D. Lighthead Horizontal Rotation
Adjustment
The lighthead should maintain its position without
drifting, yet move freely. Normally this adjustment
is correct from the factory and does not change. If
the lighthead drifts, the most probable cause is a
non-plumbmountinghub.
Recheck the fixture mounting hub to make sure
that it is plumb. In most cases this will solve any
drifting problems. If not, use the following adjust-
mentproceduretoadjustthebearingpreload. See
figure 3-5.
Figure 3-5. Horizontal Rotation Adjustment
1. Locate the adjustment hole and rotate the
lower support arm until a set screw is visible in the
adjustmentnut. Loosenthesetscrewwithanallen
wrench.
2. Leavetheallen wrenchfirmlyseated inthe
setscrew;thiswillholdtheadjustmentnutcaptive.
Carefully rotate the lower support arm slightly.
Move the arm counterclockwise (viewed from the
bottom) to decrease tension and clockwise to
increase the tension.
3. Tighten the set screw, remove the allen
wrench and recheck the tension adjustment.

Page 11
Thissectioncontains theexplodedviews and replacement parts lists fortheserviceable components
of the SKYTRON ST9 Series Lighting fixtures
Each serviceable part in these exploded views is identified by a reference number. Use this number
to locate necessary part information in the parts list adjacent to the exploded view.
Alwaysusethe complete SKYTRON part number and description when orderingreplacement parts.
Abbreviations
As Required ...................................................... A/R
Optional............................................................... opt
Serial Number ................................................... S.N.
Not Shown .......................................................... NS
- GRAND RAPIDS, MI
ELECTRIC RATING CAT. NO.
SAFETY FUSE IPXO CLASS 1
TYPE B
BULBSTYPE 24V 75W
INPUT 120V H2475
60Hz
DAI-ICHI SHOMEI CO., LTD. TOKYO, JAPAN
SERIAL NO.
MODEL
(CAT. NO
.)
FUSE
TYPE
SERIAL NO.
The lighthead Data Label contains the lighthead
m
odel number, bulb type, fuse type, electrical specification
s
and product serial number.
SECTION IV. REPLACEMENT PARTS

Page 12 1. CEILING MOUNT ASSEMBLY
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st9.0203.00
1
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Page 13
Item Part No. Description Qty.
1. CEILING MOUNT ASSEMBLY
1 B5-011-03 SCREW, phillips, M4x10......................................................................................... A/R
2 B4-242-63 COVER, transformer housing ..................................................................................... 1
3 B4-242-72 TRANSFORMER, 80W, 25V ....................................................................................... 1
4 B4-242-03 HOUSING, transformer ............................................................................................... 1
5 B4-020-22 NUT, M4 .................................................................................................................. A/R
6 B4-210-14 WASHER, lock, M4 ................................................................................................. A/R
7 B4-242-04 PLATE, transformer mounting .................................................................................... 1
8 B9-410-09 SCREW, phillips, M4x15......................................................................................... A/R
9 B5-010-99 WASHER, flat, M4 ................................................................................................... A/R
10 B4-241-01 CEILING COVER ........................................................................................................ 1
11 B4-241-02 MOUNTING HUB ........................................................................................................ 1
12 B1-010-01 FUSEHOLDER ASSEMBLY ....................................................................................... 1
13 B4-242-64 FUSE, 1.75 A FA ......................................................................................................... 1
14 B3-310-11 SCREW, allen, countersunk, M5x10 .......................................................................... 8
15 B4-241-03 VERTICAL SUPPORT TUBE (VST)............................................................................ 1
16 B4-241-04 PIVOTSHAFT ............................................................................................................. 1
17 B4-242-05 BUSHING .................................................................................................................... 1
18 B4-242-06 BUSHING .................................................................................................................... 1
19 B1-010-37 SCREW, set, M4x8...................................................................................................... 2
20 B4-241-05 UPPER ARM ............................................................................................................... 1
21 B4-242-08 WASHER, thrust.......................................................................................................... 2
22 B4-242-09 BEARING, thrust ......................................................................................................... 1
23 B4-242-10 NUT ............................................................................................................................. 1
24 B4-242-11 SNAP RING................................................................................................................. 1
25 B3-210-05 BRUSH BLOCK .......................................................................................................... 1
26 B5-010-81 SCREW, phillips M3x10 ............................................................................................. 1
27 B4-242-13 MOUNT, slip ring......................................................................................................... 1
28 B4-020-39 SCREW, set, M3x4...................................................................................................... 3
29 B3-210-04 SLIP RING................................................................................................................... 1
30 B5-010-99 WASHER, flat, M4 ................................................................................................... A/R
31 B3-220-16 SCREW, phillips, M4x8............................................................................................... 2
32 B4-241-06 COVER........................................................................................................................ 1
33 B4-242-65 DECAL, fuse type........................................................................................................ 1
34 B4-242-66 DECAL, caution .......................................................................................................... 1
35 B4-242-67 DECAL, serial number ................................................................................................ 1
B4-242-68 DECAL, Entela ............................................................................................................ 1

Page 14 2. BALANCE MECHANISM ASSEMBLY
st9.0203.002m
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Page 15
2. BALANCE MECHANISM ASSEMBLY
Item Part No. Description Qty.
1 B4-241-06 COVER........................................................................................................................ 1
2 B3-220-16 SCREW, phillips, M4x8............................................................................................... 4
3 B5-010-99 WASHER, flat, M4 ....................................................................................................... 4
4 B3-210-04 SLIP RING................................................................................................................... 2
5 B4-020-39 SCREW, set, M3x4...................................................................................................... 3
6 B4-242-13 MOUNT, slip ring......................................................................................................... 1
7 B4-242-11 SNAP RING................................................................................................................. 1
8 B4-242-10 NUT ............................................................................................................................. 1
9 B1-010-37 SCREW, set, M4x8...................................................................................................... 4
10 B4-242-08 WASHER, thrust.......................................................................................................... 2
11 B4-242-09 BEARING, thrust ......................................................................................................... 1
12 B4-241-05 UPPER ARM ............................................................................................................... 1
13 B4-242-15 BUSHING .................................................................................................................... 1
14 B4-242-16 BUSHING .................................................................................................................... 1
15 B3-210-05 BRUSH BLOCK .......................................................................................................... 2
16 B5-010-81 SCREW, phillips, M3x10............................................................................................. 1
17 B4-241-07 JOINT, upper knuckle ................................................................................................. 1
18 B9-210-82 SET SCREW ............................................................................................................... 2
19 B3-210-32 WASHER, bearing ...................................................................................................... 4
20 B3-210-33 BEARING .................................................................................................................... 2
21 B9-210-81 SCREW, allen, M5x25 ................................................................................................ 2
22 B4-242-17 PIN, pivot ..................................................................................................................... 2
23 B4-242-18 WASHER & BEARING ASSEMBLY............................................................................ 2
24 B4-242-20 PIN .............................................................................................................................. 1
25 B4-242-21 GUIDE, bearing, left .................................................................................................... 1
B4-242-22 GUIDE, bearing, right.................................................................................................. 1
26 B4-241-06 COVER........................................................................................................................ 2
27 B4-242-23 SCREW, phillips, countersunk, M4x12....................................................................... 8
28 B4-241-08 HOUSING, BOM, lower ............................................................................................... 1
29 B5-011-03 SCREW, phillips, M4x10............................................................................................. 4
30 B4-242-24 BUSHING .................................................................................................................... 1
31 B4-241-09 SHAFT, balance .......................................................................................................... 1
32 B4-241-10 SPRING....................................................................................................................... 1
33 B4-242-25 WASHER..................................................................................................................... 1
34 B4-242-26 NUT, spring adjustment .............................................................................................. 1
35 B4-241-11 SUPPORT ARM .......................................................................................................... 1
36 B5-010-81 SCREW, phillips, M3x10............................................................................................. 1
37 B4-242-27 SNAP RING................................................................................................................. 1
38 B4-242-28 NUT ............................................................................................................................. 1
39 B4-242-29 WASHER, wave .......................................................................................................... 1
40 B4-242-30 BUSHING .................................................................................................................... 1
41 B4-241-12 BEARING BODY ......................................................................................................... 1
42 B4-241-13 YOKE, lighthead ......................................................................................................... 1
43 B4-241-14 COVER, yoke .............................................................................................................. 1
B4-242-69 WIRE, red, 14AWG.................................................................................................. A/R
B4-242-70 WIRE, white, 14AWG .............................................................................................. A/R
B4-242-71 WIRE, green, 14AWG ............................................................................................. A/R

Page 16 3. ST9 LIGHTHEAD ASSEMBLY
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Page 17
3. ST9 LIGHTHEAD ASSEMBLY
Item Part No. Description Qty.
1 B4-020-39 SCREW, set, M3x4...................................................................................................... 1
2 B9-210-20 KNOB, intensity control ............................................................................................... 1
3 B4-240-02 INTENSITY CONTROL ASSEMBLY ........................................................................... 1
4 B4-240-03 SHELL, lighthead........................................................................................................ 1
5 B9-410-15 SCREW, phillips, M3x25............................................................................................. 2
6 B9-410-16 WASHER, flat, M3 ....................................................................................................... 2
7 B1-410-27 HEAT SINK.................................................................................................................. 1
8 B9-410-17 NUT, hex, M4 .............................................................................................................. 3
9 B1-410-28 MOUNT, bulb socket ................................................................................................... 1
10 B1-410-29 SOCKET, bulb............................................................................................................. 1
11 B4-010-29 BULB, halogen, 24V, 75W .......................................................................................... 1
12 B1-410-30 SPRING....................................................................................................................... 3
13 B1-410-31 REFLECTOR............................................................................................................... 1
14 B9-410-21 E-RING ........................................................................................................................ 2
15 B4-242-31 SCREW, reflector ........................................................................................................ 2
16 B4-020-22 NUT, hex, M4 .............................................................................................................. 3
17 B4-242-32 SPRING....................................................................................................................... 1
18 B9-410-22 BOLT, hex, M4x20 ...................................................................................................... 3
19 B4-030-19 BOLT, allen, M4x12 .................................................................................................... 4
20 B4-210-14 WASHER, lock, M4 ..................................................................................................... 4
21 B4-242-33 PLATE, trunion ............................................................................................................ 1
22 B4-240-05 FACE, lighthead.......................................................................................................... 1
23 B4-242-34 PLATE ......................................................................................................................... 2
24 B3-220-15 SCREW, phillips, M4x6............................................................................................... 6
25 B1-410-37 RETAINER, 1/4 turn screw.......................................................................................... 1
26 B4-240-06 FILTER ........................................................................................................................ 1
27 B1-410-41 MOUNT, filter............................................................................................................... 4
28 B1-410-38 SCREW, 1/4 turn ......................................................................................................... 1
29 B4-240-07 DIFFUSER .................................................................................................................. 1
30 B4-242-35 SPRING, diffuser ......................................................................................................... 1
31 B4-241-15 TRUNION (A) .............................................................................................................. 1
32 B4-240-08 BELT ........................................................................................................................... 1
33 B4-240-09 COVER........................................................................................................................ 1
34 B4-241-16 TRUNION (B) .............................................................................................................. 1
35 B4-241-17 BALL, 4mm.................................................................................................................. 1
36 B4-242-36 SCREW, cover ............................................................................................................ 1
37 B4-242-02 HANDLE, sterilizable positioning ........................................................................... opt.
38 B4-241-18 BALL, 5mm.................................................................................................................. 1
39 B4-242-37 WASHER..................................................................................................................... 1
40 B4-241-13 YOKE, lighthead ......................................................................................................... 1
41 B4-242-38 BEARING, needle ....................................................................................................... 1
42 B4-242-39 WASHER, wave .......................................................................................................... 1
43 B4-242-40 NUT ............................................................................................................................. 1
44 B1-010-37 SCREW, set, M4x8...................................................................................................... 1
45 B4-242-41 SNAP RING................................................................................................................. 1
46 B4-241-19 COVER........................................................................................................................ 1

Page 18 4. PORTABLE STAND ASSEMBLY
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