Skytron Skyboom Ergon Series User manual

SERVICE MANUAL
SKYBOOM
ERGON SERIES
TEC-H-0046 REV0
5/12
Readthismanualbeforestartingtowork!Thisinformationisnecessaryforthesafeand
efcientmaintenanceoftheequipment.

Page 1
ERGON SERVICE • REV0
TABLE OF CONTENTS
Title Page
Although current at the time of publication, SKYTRON’S policy of continuous development makes this
manual subject to change without notice.
SECTION I SPECIAL USER ATTENTION........................................................................................ 3
1-1. Safety Precautions ............................................................................................................... 3
1-2. Special Tool List ................................................................................................................... 5
1-3. End of Useful Life and Disposal ........................................................................................... 5
1-4. Equipment Weight Loading Capacity & Size Chart.............................................................. 6
SECTION II EQUIPMENT SPECIFICATIONS ................................................................................. 8
2-1. Environmental Conditions .................................................................................................... 8
 2-2.Certication .......................................................................................................................... 8
 2-3.ModelIdentication&EquipmentLabels ............................................................................. 9
SECTION III INTRODUCTION........................................................................................................ 10
SECTION IV MAINTENANCE......................................................................................................... 11
4-1. Maintenance Matrix ............................................................................................................. 11
 4-2.Troubleshooting................................................................................................................... 13
4-3. Preventive Maintenance Procedures .................................................................................. 14
SECTION V INSPECTION & ADJUSTMENTS ............................................................................... 15
 5-1.Hose,FittingandCableInspection ..................................................................................... 15
5-2. Bearing Adjustments ........................................................................................................... 15
  a.MainBearingStopAssembly ........................................................................................ 15
  b.FrictionBrakeAdjustment ............................................................................................. 17
 5-3.PoweredHeightAdjustableArm.......................................................................................... 18
a. Pump / Adjustments ...................................................................................................... 18
  b.CoverRemoval ............................................................................................................. 19
c. Up Limit Switch Adjustment........................................................................................... 19
d. Down Limit Switch Adjustment...................................................................................... 20
  e.Dock-ItCartAdjustment ................................................................................................ 20
  f.PlumbAdjustment ......................................................................................................... 21
 5-4.ManualHeightAdjustableArmSpringTensionAdjustment................................................. 21
5-5. Carrier Shelf Adjustment ..................................................................................................... 22
a. Center Aligned Shelves................................................................................................. 22
  b.CantileveredShelves .................................................................................................... 23
5-6. AFS Flatscreen Arm Series Adjustments............................................................................. 24
  a.FlatscreenArmBearingStopAssembly........................................................................ 24
  b.FlatscreenArmTensionAdjustments ............................................................................ 25
  c.FlatscreenArmPlumbAdjustments .............................................................................. 25
5-7. AFC Lightweight Utility Arm Series Adjustments ................................................................. 26
a. Upper Radial Arm Rotation Position Adjustment........................................................... 26
  b.UpperRadialArmLevelAdjustment ............................................................................ 27
  c.UpperRadialArmFrictionBrakeAdjustment................................................................ 27
d. Lower Radial Arm Rotation Position Adjustment........................................................... 28

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ERGON SERVICE • REV0
TABLE OF CONTENTS (continued)
Title Page
 5-8.AFCSeriesManualHeightAdjustableArm ......................................................................... 29
a. AFC Arm Tension Adjustment........................................................................................ 29
  b.AFCArmLimitStops..................................................................................................... 30
  c.AFCArmPlumbAdjustment.......................................................................................... 30
d. FC Monitor Mount ......................................................................................................... 31
TYPICAL WIRING DIAGRAMS ....................................................................................................... 32
Distributedby:
SKYTRON
5085 Corporate Exchange Blvd. S.E.
Grand Rapids, MI 49512 [phone]
www.skytron.us
Manufacturedby:
IHB Operations B.V.
Floresstraat 52
8022 AD Zwolle
The Netherlands

Page 3
ERGON SERVICE • REV0
1-1. Safety Precautions
To ensure the personal safety of the technicians,
clinicalusersandpatients:
• Always follow OSHA Safety Guidelines when
operating this equipment to avoid personal
injury / hazards.
• Hydrauliclines,ttingsandjointsareunder
highpressure.Releasesystempressureby
lowering the arm to a full downward position.
• When disconnecting any part of hydraulic
system, release system pressure and
completely support the system to avoid
personal injury.
• Room zone valve supplying medical gas
linesmustbedisconnectedandrelieved
of system pressure prior to servicing
equipment.
• Disconnect electrical power supply using
appropriateOSHA10checkoutprocedures
prior to servicing equipment.
SECTION I SPECIAL USER ATTENTION
The following is a summary of the important
precautionaryinstructions:
DANGER
Indicates a hazardous situation that,
if not avoided, will result in death or
serious injury.
WARNING
Indicates a hazardous situation that,
if not avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation that,
if not avoided, could result in minor or
moderate injury.
CAUTION
CAUTION without the safety alert
symbol, is used to address practices
notrelatedtopersonalinjurybutwith
apossibilityofdamagetoequipment.
NOTICE
Indicates important information not
related to personal injury.

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ERGON SERVICE • REV0

Page 5
ERGON SERVICE • REV0
1-2. Special Tool List
1 WHITE LITHIUM GREASE
1 TRUE RMS DIGITAL MULTIMETER
1 SPANNER WRENCH, SKYTRON P/N H9-200-04
1 TORQUEWRENCH(MULTIPLIER)660ft.-lbs.
1 1-7/8" TORQUE SOCKET, 1" DRIVE
All tools and devices employed during the
maintenanceofthisxturemustbecalibratedto
originalmanufacturersspecications.
1-3. End of Useful Life & Disposal
The end of the useful life for the SKYTRON
Skyboomxtureis20yearsundernormaloperating
conditions,servicepartsareavailableforthisperiod.
Ensure the proper disposal methods whenever
disposing of old or damaged Skyboom parts.
Always follow compliance to regulatory standards
pertaining to Federal, State and Local regulations.

Page 6
ERGON SERVICE • REV0
SPECIAL USER ATTENTION
Q Series Dual Arm Equipment Carriers - Maximum Equipment Weight
VBM CM PM / KM
Arm Length Max Wt. 24”
(610mm)
36”
(914mm)
24”
(610mm)
36”
(914mm)
24”
(610mm)
36”
(914mm)
39½” (1000mm) / 31½” (800mm)
275lbs
(125kg)
204lbs
(93kg)
204lbs
(93kg)
195lbs
(89kg)
184lbs
(84kg)
180lbs
(82kg)
165lbs
(75kg)
Dual Arm & Central Mount
Equipment Carriers - Maximum Equipment Weight
VBM CM PM / KM / XM
Arm Length Max Wt. 24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
39½” (1000mm) 31½” (800mm)
380lbs
(173kg)
300lbs
(136kg)
300lbs
(136kg)
285lbs
(130kg)
280lbs
(127kg)
295lbs
(134kg)
285lbs
(130kg)
275lbs
(125kg)
265lbs
(120kg)
280lbs
(127kg)
265lbs
(120kg)
250lbs
(113kg)
240lbs
(109kg)
44½” (1130mm) 31½” (800mm)
380lbs
(173kg)
300lbs
(136kg)
300lbs
(136kg)
285lbs
(130kg)
280lbs
(127kg)
295lbs
(134kg)
285lbs
(130kg)
275lbs
(125kg)
265lbs
(120kg)
280lbs
(127kg)
265lbs
(120kg)
250lbs
(113kg)
240lbs
(109kg)
51” (1300mm) 31½” (800mm)
360lbs
(164kg)
290lbs
(132kg)
280lbs
(127kg)
270lbs
(122kg)
260lbs
(118kg)
275lbs
(125kg)
265lbs
(120kg)
255lbs
(116kg)
245lbs
(111kg)
260lbs
(118kg)
245lbs
(111kg)
230lbs
(104kg)
220lbs
(100kg)
61” (1550mm) 31½” (800mm)
325lbs
(148kg)
250lbs
(113kg)
240lbs
(109kg)
230lbs
(104kg)
220lbs
(100kg)
235lbs
(106kg)
225lbs
(102kg)
215lbs
(98kg)
210lbs
(95kg)
220lbs
(100kg)
205lbs
(93kg)
195lbs
(88kg)
180lbs
(81kg)
Tandem Mount Equipment Carriers - Maximum Equipment Weight
VBM CM PM / KM / XM
Upper Arm Length Max Wt. 24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
24”
(610mm)
36”
(914mm)
48”
(1219mm)
56”
(1422mm)
61” (1550mm) 31½” (800mm)
325lbs
(148kg)
250lbs
(113kg)
240lbs
(109kg)
230lbs
(104kg)
220lbs
(100kg)
235lbs
(106kg)
225lbs
(102kg)
215lbs
(98kg)
210lbs
(95kg)
220lbs
(100kg)
205lbs
(93kg)
195lbs
(88kg)
180lbs
(81kg)
44½” (1130mm) 31½” (800mm)
380lbs
(173kg)
300lbs
(136kg)
300lbs
(136kg)
285lbs
(130kg)
280lbs
(127kg)
295lbs
(134kg)
285lbs
(130kg)
275lbs
(125kg)
265lbs
(120kg)
280lbs
(127kg)
265lbs
(120kg)
250lbs
(113kg)
240lbs
(109kg)
Lower Arm Length 48” (1220) 31½” (800mm)
260lbs
(118kg)
190lbs
(86kg)
180lbs
(81kg)
165lbs
(75kg)
160lbs
(72kg)
175lbs
(79kg)
160lbs
(72kg)
150lbs
(68kg)
145lbs
(66kg)
155lbs
(70kg)
140lbs
(63kg)
130lbs
(59kg)
115lbs
(52kg)
31½” (800mm) 31½” (800mm)
260lbs
(118kg)
190lbs
(86kg)
180lbs
(81kg)
165lbs
(75kg)
160lbs
(72kg)
175lbs
(79kg)
160lbs
(72kg)
150lbs
(68kg)
145lbs
(66kg)
155lbs
(70kg)
140lbs
(63kg)
130lbs
(59kg)
115lbs
(52kg)
Equipment Weight
Loading Capacity
& Size Chart

Page 7
ERGON SERVICE • REV0
SPECIAL USER ATTENTION
Be aware of the Skyboom Ergon series weight limits and Surgical Display size.
Themaximumweightlimitoneachcenteralignedshelfis100lb(45kg),oncantileveredshelvesthe
maximumweightlimitoneachshelfis70lb(31kg).Maximumequipmentweightloadingcapacityrefers
tothemaximumtotalweightthatthesystemcansupport.Observethefollowingcapacityguidelines.
Equipment Weight Loading Capacity & Size Chart
Max Wt.
Cantilevered Shelf 70lbs(31kg)
Center Aligned Shelf 100lbs(45kg)
Lightweight Utility Arm 80lbs(36kg)
Surgical Displays Max Size
FC1 26” (660mm)
FS32 32” (812mm)
FC2 (2) 26” (660mm) monitors
Precautions for placement of Equipment on the shelves:
• Neverexceedthemaximumweightcapacityoneachshelfandobservethetotalequipmentweight
for the carrier.
• Ensure that each shelf is secured tightly
• Ensure that equipment is properly placed and level on each shelf
• Anchor and secure equipment in accordance with manufacturer’s recommendations
• Thereareequipmentweightrestrictionsonthemanual&poweredheightadjustablearmsin
combinationwiththeVBMstylecarriersandcantileveredshelves,amaximumof165lbs.(75kg)is
allowed.

Page 8
ERGON SERVICE • REV0
2-1. Permissible Environmental Conditions
DURING TRANSPORT AND STORAGE (IN ORIGINAL PACKAGING MATERIALS)
 •AMBIENTTEMPERATURE: -10°-60°C(14°-140°F)
 •RELATIVEAIRMOISTURE: 10%-85%,NOCONDENSATEBUILD-UP
 •AIRPRESSURE:   500hPa-1060hPa(14in-Hg-31in-Hg)
DURING USE - FOR DRY LOCATIONS
 •AMBIENTTEMPERATURE: 15°-30°C(60°-85°F)
 •RELATIVEAIRMOISTURE: 30%-60%NONCONDENSING
 •AIRPRESSURE:   700hPa-1060hPa(20.7in-Hg-31.3in-Hg)
2-2. Certied by ETL to these standards:
MedicalElectricalEquipment:Part1:
General Requirements for Safety - UL 60601-1 (1st Ed., 25-Apr-03, Rev 30-Jun-03)
MedicalElectricalEquipment:Part1:
General Requirements for Safety - CAN/CSA C22.2 601.1-M90,
General Instruction No. 1 (1st Ed., 30-Nov-90, R2005) + Update No. 2 (30-Nov-03)
SECTION II EQUIPMENT SPECIFICATIONS

Page 9
ERGON SERVICE • REV0
2-3. Model Identication & Equipment Labels
Thegurebelowdepictstheproductidenticationlabel(#2)andit’srespectiveplacementonthexture.
Themodelnumberisshownaspartoftheoverallidenticationnumberprintedorstampedontheproduct
identicationlabel.Otheradvisoryandinformativelabelsareprovidedthroughoutthextureanddepicted
intheillustrationbelow.
boom label locations
115V .AC
THIS SIDE UP
120 VAC, 60 Hz, 1 Ph TYPE B
CLASSFUSEAMP 2.7 5A F.A.
GRAND RAPIDS, MI
MODEL
SERIAL NO.
Manufactured by IHB
WARNING
-MULTIPLE CIRCUITS-
DISCONNECT ALL CIRCUITS
PRIOR TO SERVICING
AVERTISSEMENT
-CIRCUITS MULTIPLES-
DÉBRANCHEZ TOUS LES CIRCUITS
AVANT D’EFFECTUER DU SERVICE
SUR LES ÉQUIPEMENTS
TOTAL CIRCUIT LOAD AMPS
1
2
120 VAC, 60 Hz, 1 Ph 20 Max
3
120 VAC, 60 Hz, 1 Ph 20 Max
120 VAC, 60 Hz, 1 Ph 20 Max
CIRCUIT 1
120 VAC 60 Hz
ETL LISTED
CONFORMS TO
UL STD 60601-1
CERTIFIED TO
CAN/CSA STD C22.2 NO.601.1
I
ntertek
98115
Serial No:
05-06-VS2S0011-2S
2010
IHB Operations BV
Floresstraat 52
NL-8022 AD Zwolle
IP 20
8
7
6
5
4
1
8
7
6
5
4
3
2
12
3
5

Page 10
ERGON SERVICE • REV0
TheERGONSkyboomSeriesfromSKYTRONisa
ceiling mounted Utilitiesand Equipment Dispensing
System. Electrical, gas and communications
services are provided to the patient treatment area
throughaexibledispensingheadattachedtoa
rotating arm system.
Thexturesaresinglepointceilingmountedwith
uptoa330°rotationcapabilityattheceilingmount,
themiddlebearingonadualradialarmmodeland
thecarrier.Seegure3-1.Allrotationstopsand
the degree of rotation can be adjusted to meet
specicneeds.
Theoptionalheightadjustableradialarmcanbe
raisedorloweredforverticaltravelcapabilityof24”
(610mm)-30”(762mm)forLightweightUtility arms.
NOTICE
Skyboom configurations will vary
dependingonthenumberandtypeof
options selected.
Model variations include single arm, dual arm,
two dual arm sets or combinations of Skyboom
xtures and SKYTRON lighting xtures from a
singlemountinghub.
Thecenterhubmounted(upper)radialarmsare
xedheightandareavailableinvariouslengths.
The secondary radial arms that are attached to the
upperarmsmaybexedheight,poweredheight
adjustableormanualheightadjustable.
Theutilitiesdispensing/equipmentcarriersavailable
include a Utilities supply Box (UB), Vertical Utilities
supply head (VBM)or a CM,KM, PM, XMequipment
carrier in 24” (610mm),36” (914mm), 48” (1219mm)
or 56” (1422mm) lengths.
SECTION III INTRODUCTION
Figure 3-1. Typical Fixture Components
LOWER DUAL
RADIAL ARM SET UPPER DUAL
RADIAL ARM SET
FLATSCREEN
MONITOR
CARRIER
SURGICAL LIGHTS
LOWER DUAL
RADIAL ARM SET UPPER DUAL
RADIAL ARM SET
FLATSCREEN
MONITOR
CARRIER
SURGICAL LIGHTS

Page 11
ERGON SERVICE • REV0
4-1. Maintenance Matrix
ThespecicitemslistedintheMAINTENANCEMATRIXshallbeinspectedandrepairedorreplacedas
necessary. The suggested time intervals are intended as a guideline only and actual maintenance will
varybyuseandconditions.
Component 6 Months 1 Year 10 Years
Mounting Plate Hardware (Tighten/Torque) X
Mounting Plate Level X
Inspect Gas Hose to Riser Connections X
Inspect Electrical Connections at Mounting Plate X
Upper Arm Covers & Attachment Hardware X
Lower Arm Covers & Attachment Hardware X
Carrier Shelf Securement & Hardware X
Side rail Tightness X
Positioning Handle X
Overall Aesthetic Condition X
Ceiling Cover Function X
ProductCaution&WarningLabels X
Communication & A/V Lines X
Electrical Lines X replace
Medical Gas Lines X replace
Dropping Valve Adjustment X
Upper EL Limit Switch Setting X
Lower EL Limit Switch Setting X
Hydraulic Cylinder X
Hydraulic Pressure Pump X
Hydraulic Line X replace
Hydraulic Oil X
Rotation Stops (Stop Bolts) X
FrictionBrakes X
Pneumatic Gas Cylinders (Gas Springs) X
PlumbAdjustment X
PlumbHardwareandActuator X
Eccentric Parallel Pin & Hardware X
Pendant Control Unit X
Elevation Control Buttons X
Elevation Control PCB X
Bearings X
Dock-It Models X
Caster Wheel(s) X
PowerCordAssembly X
SECTION IV MAINTENANCE

Page 12
ERGON SERVICE • REV0
Component 6 Months 1 Year 10 Years
Light Weight Spring Arm Models X
BrakeBlock(Brass) X
BrakeKey(Brass) X
Stop Key (Brass) X
Inspect&LubricateHeightAdjustableArms X
Accessories X
Monitor Mount Adjustment X
MonitorMountCables X
Medical Gas Outlets X
Electrical Outlets X
Communications & A/V Outlets X
Fixture Ground Test X

Page 13
ERGON SERVICE • REV0
PROBLEM CAUSE REMEDY
Arm or equipment carrier
moveswithdifculty.
Too much equipment on the carrier.
Frictionbrakestotight.
Armsandxturearenotlevel.
Remove equipment that is not needed.
Adjustthebrakes.
Checkmountingplate.
Arm or equipment carrier will
not stay in position.
Too much equipment on the carrier.
Frictionbraketooloose.
Armsandxturearenotlevel.
Cablesthroughthearmsand
bearingspushthearmoutof
position.
Remove equipment that is not needed.
Adjustthebrakes.
Checkmountingplate.
Checkhoseandcablerouting.
Arms and carriers move
instable.
Equipment is placed or attached
eccentrically on the carrier.
Too much play in the mounting
xture.
Place and attach equipment in the center
of the carrier.
Checkthemountingplate.
Spring arm will not stay in
position.
New or more equipment placed.
Equipmentistakenoff.
Springtensionisnotbalancedfor
the equipment load.
Remove equipment that is not needed.
Place an equivalent in weight of other
equipment.
Adjust the spring tension or exchange
the gas springs.
Hydraulic arm is lifting too
slow.
Too much equipment on the carrier.
Remove equipment that is not needed.
Hydraulic arm is lowering too
slow.
The hydraulic pump is not adjusted
correctly.
Adjust the hydraulic pump.
Arms or equipment carriers
collide.
Rotation area is not set correctly. Adjust the rotation stops.
Paint damage.
Arms and carriers collide.
Equipment has damaged the paint.
Wear and tear.
Makesurethatthepaintdamagecannot
lead to hazards for the patient.
Paint.
Arms or equipment carrier
rotatemorethan330°.
Rotation stop is missing or
damaged.
Do not use the Fixture!
Gashosesandelectricalwiringmaybe
damaged.
Repair and replace stops.
Serviceoutletnotworking
properly.
Gas outlets not functioning or noise
audible.
Electrical outlet not functioning.
Do not use the Fixture!
Gashosesandelectricalwiringmaybe
damaged.
Inspect and repair.
4-2. Troubleshooting

Page 14
ERGON SERVICE • REV0
4-3. Preventive Maintenance Procedures
The following procedures should be done
semi-annually or sooner as needed.
a. All attaching hardware (screws, nuts, etc.)
should be physically checked for tightness.Any
missinghardwareMUSTbereplaced.Replacement
hardware should use Blue Loctite®.
b. Rotatetheradialarmassemblyaroundthe
ceilingmounttocheckforproperstopoperation
andtheabilityofthearmtoremaininanyposition
through the entire range of movement.Adjust stops
andfrictionbrakesasneeded.
c. Rotate the utilities dispensing head through
itsfullrangeofmovementtocheckforproperstop
operation and for any signs of drifting. Adjust as
needed.
d. The gas outlets and hose assemblies
shouldbecheckedforanysignsofleaksorsigns
of abrasion on the hoses at points of rotation.
Checktheoutletsforwearandproperoperation.
Labelsshouldbelegibletoensuresafeoperation.
Gas hoses must be replaced every 10 years.
Exposed surfaces of outlets may be cleaned
with a mild detergent solution or wiped with a
disinfectant used for patient room surfaces that is
compatiblewithacetalandnylonplastic,anodized
aluminumanddiecastzinc.Lubricateelastomer
seals sparingly with a lubricant compatible
with oxygen. Silicone lubricant, Dow Corning
compound#4 or equivalent.DONOTUSEOIL.
Follow National Fire Protection Association
Standard 99, 99C "Gas and Vacuum Systems,"
and Canadian Standards Association, Standard Z
305.1"NonammableMedicalGasPipingSystems"
requirements and methods for periodic testing and
maintenance of medical gas and vacuum systems.
Refer to Beacon Medical Products Service Manual
(included in this manual) for further service support
information.
e. Theelectricaloutletsshouldbeinspected
for any signs of damage and replaced if needed.
Theelectricalsystemshouldbecheckedforshorts,
leakageoranysignsofabrasionontheelectrical
cablesatpointsofrotation.Inspectequipmentto
ensure electrical circuit capacity is not exceeded.
Refer to circuit amperage tag on the utilities
dispensing head. It is recommended that electrical
wiringbereplacedevery10years.
f. The communications and video connectors
shouldbeinspectedforanysignsofdamageand
for proper engagement. Inspect for any signs of
abrasiononthecablesatpointsofrotation.

Page 15
ERGON SERVICE • REV0
5-2. Bearing Adjustments
As a part of periodic maintenance or as equipment
changesaremade,thebearingsettingsmayrequire
adjustment. Use the following procedures to adjust
thebearings.Duringanystopadjustment,inspect
the Stop Bolt for any indication of wear or damage.
a. Main Bearing Stop Assembly
Thebearingscontainanadjustablestopmechanism
and a friction brake at the Hub, Center Bearing
andVerticalSupportTube.Thestopmechanism
allowstheradialarmDegreeofRotationtobeset
between15°and330°in15°increments.
5-1. Hose, Fitting and Cable Inspection
During routine maintenance inspections, the hoses
and cables should be inspected at all points of
articulationforanysignsofabrasion,twistingor
pinching. Replacement is necessary ifany damage
isfound.Electricalcablesandexiblegaslinesmust
bereplacedevery10yearsorinconformitywith
national codes regardless of appearance. D.I.S.S.
ttingsandconnectionpointsmustbeinspected
forgasleaksusingtheappropriateequipmentand
recognized methods.Use thefollowing procedure to
inspectthehosesandcablesthatexitfromthetop
oftheupperradialarmorhub.Refertogure5-1.
SECTION V INSPECTION & ADJUSTMENTS
Figure 5-1.
a. Removethetwoboltsretainingthelower
ceiling cover halves and remove the lower ceiling
cover.
b. Inspectthehosesandcablesforanysigns
ofdamage.Thehoseandcableroutingshouldbe
neat and comprised in a harness conguration.
Theharnessshouldbefastenedinafashionthat
doesnotpermitittorubagainsttheceilingorother
obstructionsasitrotateswiththearm.
c. Inspect the Gas Hose to Riser Connections
foranyloosettingsorsignsofleaks.
d. Inspect all mounting hardware and
physicallycheckfortightness.
e. Inspect the Radial Arms for any signs of
drifting.Checkthetubeofthemountinghubwith
aleveltomakesureitisplumb.
f. Using the torque multiplier, ensure the
1-1/4"mountinghubnutsareproperlytorquedto
660ft.lbs.
UPPER ARM
LOWER ARM
CARRIER
STOP AREA
DESIRED
STOP AREA
111307.02mj
Figure 5-2.
Depending on arm model, end caps and covers
mayneedtoberemovedforaccess.
ToaccesstheStopBoltandFrictionBrakeonthe
hubendoftheupperradialarms,theEndCapand
Coverwillhavetoberemoved.Toremovethem,
carefullypeelbacktheTrimStripforaccesstothe
retainingscrews.Refertogure5-3.
Remove the End Cap Screws and remove the
EndCap.Loosen,butdonotremovetheCover
Retaining Screws and remove the cover.
GAS
HOSES
RISER
CONNECTIONS
gas hoses - riser connections

Page 16
ERGON SERVICE • REV0
STOP
BOLT
FRICTION
BRAKE
SET SCREWS
COVER RETAINING SCREWS TRIM STRIP
15315 330
30300
45
285
60270
75255
90240
105225
120
210
135
195 150180 165
REFERENCE
345
STOP BOLT (1)
STOP BALL (2)
Figure 5-3.
ThebearingsusetwoStopBallsandaStopBolt
to set the rotation adjustment.
TheStopBoltislocatedinthebearingasshown
ingure5-4.
Usegures5-2and5-4todeterminethedegreeof
rotation desired and the rotation position in relation
to the radial arm.
If an adjustment is required, the Stop Bolt and one
orbothoftheStopBallswillhavetoberemoved
fromthebearing.Usethefollowingprocedureto
adjust the stops.
CAUTION
Do not rotate Radial Arms more than
360°.Damagetotheequipmentcould
occur.
1. RemovetheStopBoltandoneorboth
Stop Balls.
2. Rotate the arm or carrier to the rst
desiredstoplocation andinsertone oftheStop Balls.
3. Rotate the arm or carrier in the opposite
direction to the second stop location and insert the
second Stop Ball.
4. Rotatethearmorcarrierbacktoward
therstStopBall,installandtightentheStopBolt.
Figure 5-4.

Page 17
ERGON SERVICE • REV0
CENTER
BEARING
HUB BEARING
(MOST FRICTION)
END BEARING
(LEAST FRICTION)
CENTER
ALLEN BOLT
FRICTION
SET SCREWS
b. Friction Brake Adjustment
Prior to making any adjustments to the friction
brakestocompensateforradialarmdrift,make
surethatthemountingstructurehasbeenproperly
constructed.Makesurethatthexturemounting
hubisproperlyleveledandthatthexturemounting
hardware is properly tightened.
Eachbearinghasafrictionbrakeassemblythat
applies tension on the bearing to restrict the
movement. The ideal adjustment is at the point
of overcoming any "drift" while allowing relative
ease of movement.
Properadjustmentofallofthefrictionbrakeswill
aid in the positioning of the utilities carrier. Proper
adjustment is with the mounting hub bearing
movementadjustedtobethemostrestricted,then
the center bearing and nally the end bearing.
Refertogure5-5.
Figure 5-5.
Figure 5-6.
3. Testthebrakeadjustmentthroughthe
full range of rotation. Adjust as needed to attain
proper movement.
4. Tighten Center Allen Bolt securely.
Use the following procedure to adjust the friction
brake.Refertogure5-6.
1. Loosenthecenterallenbolt.
2. Tighten the two small set screws evenly
untildesiredresistanceismet.Tightentheallenbolt.

Page 18
ERGON SERVICE • REV0
5-3. Powered Height Adjustable Arm
a. Pump Adjustments
Test the operation of the hydraulic pump and Height
AdjustableArmusingtheup/downbuttonsonthe
carrier handle or the pendant switch control.
Thedownmovementofthearmiscontrolledby
a dropping valve. When the valve is activated a
return port to the reservoir is opened. The weight
ofthearmandcarrierforcesthehydraulicuidfrom
thecylinderbacktothereservoirallowingthearm
todescend.Speedshouldbeequalwhenraising
or lowering the arm.
Thepumpenclosureismountedabovethenished
ceiling. To gain access to the pump, remove the
pump enclosure cover.
WARNING
The pump enclosure contains 120VAC
electrical service. Use extreme care
whenmakingpumpadjustments.
The dropping speed of the radial arm can be
adjusted at the hydraulic pump. To adjust the
dropping speed of the arm, remove the plastic
coveronthetopofthepumpassemblyanduse
an allen wrench to turn the adjustment screw until
thedesiredspeedisachieved.Refertogure5-7.
The dropping speed should equal the elevation
speed. The elevation speed is dependant on the
weight of the carrier and equipment. There is no
elevation speed adjustment.
Figure 5-7. Hydraulic Pump Adjustments
WARNING
Hydrauliclines,ttingsandjointsmay
beunderhighpressure.Releasesystem
pressure by lowering and supporting
arm.
Inspectthepumpforanyleaksateachplumbing
connection. Inspect the oil level in the reservoir.
Theoillevelshouldbewithin1"ofthellercapwith
the arm in a full down position. Use SKYTRON
HydraulicOilpartnumberAZOLIAZS46ifadditional
oilisrequired.Theoillevelcanbeanindication
of the overall condition of the hydraulic circuit.
Discoloration or low uid level indicates other
potentialproblems.
HYDRAULIC PUMP
DROPPING SPEED
ADJUSTMENT SCREW
boom hydraulic pump adjustments