Genie S-80 User manual

Operator’s Manual
with Maintenance Information
Fifth Edition
Third Printing
Part No. 1000231

Operator's Manual Fifth Edition • Third Printing
S-80 • S-85 PartNo.1000231
Copyright © 1994 by Genie Industries
First Edition: Fifth Printing, October 1996
Second Edition: Fifth Printing, July 2000
Third Edition: Third Printing, October 2002
Fourth Edition: Third Printing, July 2004
Fifth Edition: Third Printing, May 2006
"Genie" is a registered trademark of
Genie Industries in the U.S.A. and many other
countries. "S" is a trademark of Genie Industries.
Thesemachines complywith
ANSI/SIA92.5-1992.
Printed on recycled paper
Printedin U.S.A.
Important
Read,understandand obey these safety rules and
operating instructions before operating this machine.
Only trained and authorized personnel shall be
permitted to operate this machine. This manual
should be considered a permanent part of your
machine and should remain with the machine at all
times. If you have any questions, call Genie Industries.
Contents
Page
Safety Rules.............................................................. 1
Controls ..................................................................... 8
Legend ...................................................................... 11
Pre-operationInspection ........................................... 12
Maintenance ............................................................. 14
Function Tests.......................................................... 18
WorkplaceInspection................................................ 24
OperatingInstructions............................................... 25
Transportand Lifting Instructions .............................. 31
Decals ...................................................................... 34
Specifications ........................................................... 38
Contact us:
Internet:http://www.genielift.com
e-mail:[email protected]

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 1
Safety Rules
Danger
Failure to obey the instructions and
safety rules in this manual will
result in death or serious injury.
Do Not Operate Unless:
You learn and practice the principles of safe
machineoperationcontainedinthisoperator's
manual.
1 Avoidhazardoussituations.
Knowandunderstandthesafetyrulesbefore
going on to the next section.
2 Alwaysperformapre-operationinspection.
3 Always perform function tests prior to use.
4 Inspect the workplace.
5 Only use the machine as it was intended.
Youread,understandandobeythe
manufacturer'sinstructions and safety rules—
safetyandoperator'smanualsandmachine
decals.
Youread,understandandobeyemployer's
safety rules and worksite regulations.
Youread,understandandobeyallapplicable
governmentalregulations.
Youare properly trained to safely operatethe
machine.

Operator'sManual Fifth Edition • Third Printing
2 S-80 • S-85 PartNo.1000231
SAFETY RULES
Electrocution Hazards
This machine is not electrically insulated and will
not provide protection from contact with or
proximity to electrical current.
Maintain safe distances from electrical power lines
andapparatusinaccordancewithapplicable
governmentalregulationsandthefollowingchart.
Voltage Minimum Safe
Phase to Phase Approach Distance
Feet Meters
0 to 300V Avoid Contact
300V to 50KV 10 3.05
50KV to 200KV 15 4.60
200KV to 350KV 20 6.10
350KV to 500KV 25 7.62
500KV to 750KV 35 10.67
750KV to 1000KV 45 13.72
Allow for platform movement, electrical line sway or
sag, and beware of strong or gusty winds.
Keep away from the machine if it contacts
energizedpowerlines. Personnelonthegroundor
in the platform must not touch or operate the
machine until energized power lines are shut off.
Donotoperatethemachineduringlightningor
storms.
Do not use the machine as a ground for welding
unless the machine is equipped with the weld line
to platform option and it is properly connected.
Tip-over Hazards
Occupants,equipment and materials shall not
exceed the maximum platform capacity.
Maximum platform capacity
S-85 500 lbs 227 kg
Maximum platform capacity
S-80 with 8 Ft Platform 500 lbs 227 kg
Maximum platform capacity
S-80 with 6 Ft Platform 600 lbs 272 kg
Maximum platform capacity
S-80 with foam-filled tires
andpropercounterweight
configuration 750 lbs 340 kg
Maximum occupants 2
The weight of options and accessories, such as
pipecradles, panel cradles andwelders,willreduce
the rated platform capacity and must be factored
into the total platform load. See the decals on the
options.
Do not raise or extend the boom unless both axles
areextended.
Do not raise or extend the boom unless the
machine is on a firm, level surface.

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 3
SAFETY RULES
Donot drive the machine onornear uneven terrain,
unstablesurfacesorotherhazardousconditions
withtheboomraised or extended.
Do not drive the machine on a slope that exceeds
the maximum uphill, downhill or side slope rating of
the machine. Slope rating applies to machines in
thestowed position.
Maximum slope rating, stowed position, 2WD
Counterweight uphill 30% (17°)
Counterweight downhill 15% (9°)
Side slope 25% (14°)
Maximum slope rating, stowed position, 4WD
Counterweight uphill 45% (24°)
Counterweight downhill 30% (17°)
Side slope 25% (14°)
Note: Slope rating is subject to ground conditions
andadequatetraction.
Do not push off or pull toward any object outside
of the platform.
Maximum allowable
side force-ANSI & CSA
150 lbs
667 N
Maximum allowable
manual force - CE
90 lbs
400 N
Do not depend on the tilt alarm as a level indicator.
The tilt alarm sounds in the platform only when the
machine is on a severe slope.
If the tilt alarm sounds:
Do not extend, rotate or raise the boom above
horizontal. Move the machine to a firm, level
surface before raising the platform. If the tilt alarm
sounds when the platform is raised, use extreme
caution to retract the boom and lower the platform.
Donot rotate theboom while lowering.Move the
machine to a firm, level surface before raising the
platform.
Do not raise the boom when wind speeds may
exceed 28 mph / 12.5 m/s. If wind speeds exceed
28 mph / 12.5 m/s when the boom is raised, lower
the boom and do not continue to operate the
machine.
Do not operate the machine in strong or gusty
winds. Do not increase the surface area of the
platform or the load. Increasing the area exposed to
the wind will decrease machine stability.
Use extreme care and slow speeds while driving
the machine in the stowed position across uneven
terrain,debris, unstable or slippery surfacesand
nearholesanddrop-offs.

Operator'sManual Fifth Edition • Third Printing
4 S-80 • S-85 PartNo.1000231
Do not alter or disable machine components that in
any way affect safety and stability.
Do not replace items critical to machine stability
with items of different weight or specification.
Do not modify or alter an aerial work platform
withoutprior writtenpermissionfromthe
manufacturer.Mountingattachmentsforholding
toolsor other materialsonto the platform, toeboards
or guard rail system can increase the weight in the
platform and the surface area of the platform or the
load.
Do not place or attach overhanging loads to any
part of this machine.
Do not place ladders or scaffolds in the platform or
against any part of this machine.
Do not transport tools and materials unless they are
evenly distributed and can be safely handled by
person(s)in theplatform.
Do not use the machine on a moving or mobile
surface or vehicle.
Be sure all tires are in good condition, air-filled tires
areproperlyinflatedandlugnuts areproperly
tightened.
Models with 750 lb / 340 kg Capacity: Do not use
air-filledtires.Modelsareequippedwithfoam-filled
tires.Thewheelweight andtheproper
counterweightconfigurationarecriticalformachine
stability.
Do not use the platform controls to free a platform
thatis caught, snagged or otherwise prevented
from normal motion by an adjacent structure. All
personnelmustberemovedfromthe platform
before attempting to free the platform using the
groundcontrols.
Fall Hazards
Occupants must wear a
safety belt or harness in
accordancewith
governmentalregulations.
Attach the lanyard to the
anchorprovidedinthe
platform.
Do not sit, stand or climb on the platform guard
rails. Maintain a firm footing on the platform floor at
all times.
Do not climb down from the platform when raised.
Keep the platform floor clear of debris.
Lower the platform entry mid-rail or close the entry
gatebeforeoperating.
SAFETY RULES

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 5
Collision Hazards
Be aware of limited sight
distance and blind spots
whendrivingoroperating.
Beawareofboompositionandtailswingwhen
rotatingtheturntable.
Operators must comply with employer, job site and
governmentalrulesregardingtheuseofpersonal
protectiveequipment.
Checktheworkarea for overhead obstructions or
otherpossiblehazards.
Beawareofcrushing hazardswhengraspingthe
platformguardrail.
Observeandusethecolor-codeddirectionarrows
on the platform controls and drive chassis for drive
and steer functions.
Do not lower the boom unless the area below is
clearof personnel and obstructions.
Limit travel speed according to the condition of the
ground surface, congestion, slope, location of
personnel and any other factors which may cause
collision.
Do not operate a boom in the path of any crane
unless the controls of the crane have been locked
outand/orprecautionshavebeentakentoprevent
any potential collision.
Nostunt driving or horseplay while operating a
machine.
SAFETY RULES

Operator'sManual Fifth Edition • Third Printing
6 S-80 • S-85 PartNo.1000231
SAFETY RULES
Component Damage Hazards
Do not use any battery or charger greater than 12V
tojump-startthe engine.
Do not use the machine as a ground for welding
unless the machine is equipped with the weld line
to platform option and is properly connected.
Explosion and Fire Hazards
Do not start the engine if you smell or detect liquid
petroleumgas(LPG),gasoline,dieselfuelorother
explosive substances.
Donotrefuelthemachinewiththe engine running.
Refuel the machine and charge the battery only in
anopen, well-ventilated area awayfromsparks,
flames and lighted tobacco.
Donotoperatethe machine in hazardous locations
orlocationswherepotentially flammableor
explosive gases or particles may be present.
Donot spray ether into engines equipped with glow
plugs.
Damaged Machine Hazards
Donotuseadamaged or malfunctioning machine.
Conductathoroughpre-operationinspectionofthe
machine and test all functions before each work
shift. Immediately tag and remove from service a
damagedormalfunctioningmachine.
Besureallmaintenance has been performed as
specified in this manual and the Genie S-80 &
GenieS-85ServiceManual.
Be sure all decals are legible and in place.
Be sure that the operator’s, safety and
responsibilitiesmanualsarecomplete,legibleand
in the storage container located on the platform.
Bodily Injury Hazard
Do not operate the machine with a hydraulic oil or
air leak. An air leak or hydraulic leak can penetrate
and/orburnskin.
Alwaysoperatethe machine in a well-ventilated
areatoavoidcarbonmonoxidepoisoning.
Impropercontact with components under any cover
will cause serious injury. Only trained maintenance
personnel should access compartments. Access
by the operator is only advised when performing a
pre-operationinspection.Allcompartmentsmust
remainclosedandsecuredduringoperation.
Weld Line to Platform Safety
(if equipped)
Read,understandandobeyallwarningsand
instructionsprovided withthewelding powerunit.
Do not connect weld leads or cables unless the
welding power unit is turned off at the platform
controls.
Donotoperateunlessthe weld cables are properly
connected.
Connect the leads to the twist-lock connectors at
theturntableandplatform.

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 7
SAFETY RULES
Decal Legend
Genie product decals use symbols, color coding
and signal words to identify the following:
Safety alert symbol—used to alert
personneltopotentialpersonal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
Red—usedtoindicatethe
presence of an imminently
hazardous situation which, if not
avoided, will result in death or
seriousinjury.
Orange—usedtoindicatethe
presence of a potentially
hazardous situation which, if not
avoided, could result in death or
seriousinjury.
Yellow with safety alert symbol—
used to indicate the presence of a
potentiallyhazardoussituation
which, if not avoided, may cause
minorormoderateinjury.
Yellow without safety alert
symbol—used to indicate the
presence of a potentially
hazardous situation which, if not
avoided, may result in property
damage.
Green—usedtoindicateoperation
ormaintenanceinformation.
Battery Safety
Burn Hazards
Batteries contain acid. Always wear protective
clothingandeyewearwhenworkingwithbatteries.
Avoid spilling or contacting battery acid. Neutralize
battery acid spills with baking soda and water.
Explosion Hazard
Keep sparks, flames and lighted tobacco away
from batteries. Batteries emit explosive gas.
Electrocution Hazard
Avoid contact with electrical terminals.

Operator'sManual Fifth Edition • Third Printing
8 S-80 • S-85 PartNo.1000231
Controls
1
7 Deutz models: Glow plug switch
Perkins models: Glow plug indicator light
8 Engine start switch
9 Engine idle (rpm) select switch
· Turtle: foot switch activated low idle
· Rabbit: foot switch activated high idle
PlatformControlPanel
1 Hornbutton
2 Platform level switch
3 Platform rotate switch
4 S-85 only: Jib boom up/down switch
5 Auxiliarypowerswitch
6 Drive speed select switch
20
2 3 4 5 6
17
19 18

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 9
CONTROLS
10 Gasoline/LPGmodels:Gasoline/LPGselect
switch
11 RedEmergencyStopbutton
12 Proportionalcontrolhandlefordrivefunctionand
thumb rocker for steer function
13 Platformoverloadindicatorlight(ifequipped)
14 Machinenot level indicator light (if equipped)
15 Driveenableindicatorlight
16 Driveenableswitch
17 Proportionalcontrolhandleforboom
extend/retract
18 Axle indicator light
19 Axle extend/retract switch
20 Dualaxisproportionalcontrolhandleforboom
up/downandturntablerotateleft/rightfunctions
78 9 10 11
1415
16 12
13

Operator'sManual Fifth Edition • Third Printing
10 S-80 • S-85 PartNo.1000231
CONTROLS
GroundControlPanel
1 Turntablerotateswitch
2 Boomup/downswitch
3 Boomextend/retract switch
4 Platformoverloadindicator
light(ifequipped)
5 notused
6 Auxiliarypowerswitch
7 Gasoline/LPGmodels:
Watertemperature
gauge(ifequipped)
Deutz Diesel models: Oil
temperaturegauge
(ifequipped)
8 Key switch for platform/off/
groundselection
9 Oilpressuregauge
(ifequipped)
10 Voltagegauge(ifequipped)
11 RedEmergencyStop
button
12 Check engine light (if not
equippedwithgauges)
13 Hourmeter
14 Gasoline/LPGmodels:
Gasoline/LPG select switch
15 Deutzmodels: Glow plug
switch
Perkinsmodels: Glow plug
indicatorlight
16 Functionenableswitch
17 Engine start switch
18 15Abreakerforengine
electrical circuits
19 20Abreakerforoilcooler
andoptions
20 15Abreakerforcontrol
electrical circuits
21 S-85 only: Jib boom up/
downswitch
22 Platform level switch
23 Platform rotate switch

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 11
Legend
1 Non-steertire
2 Steertire
3 Groundcontrols
4 Boom
5 Platformcontrols
6 Platform
7 Jibboom(S-85)
8 Lanyardanchoragepoint
9 Sliding mid rail
10 Manualstoragecontainer
11 Foot switch

Operator'sManual Fifth Edition • Third Printing
12 S-80 • S-85 PartNo.1000231
Pre-operation Inspection
Do Not Operate Unless:
You learn and practice the principles of safe
machineoperationcontainedinthisoperator's
manual.
1 Avoidhazardoussituations.
2 Alwaysperformapre-operation
inspection.
Knowandunderstandthepre-operation
inspection before going on to the next
section.
3 Always perform function tests prior to use.
4 Inspect the workplace.
5 Only use the machine as it was intended.
Fundamentals
It is the responsibility of the operator to perform a
pre-operationinspectionandroutinemaintenance.
Thepre-operation inspection is avisual inspection
performed by the operator prior to each work shift.
The inspection is designed to discover if anything
isapparentlywrongwithamachinebeforethe
operator performs the function tests.
Thepre-operationinspectionalso servesto
determineifroutinemaintenanceproceduresare
required.Onlyroutinemaintenanceitemsspecified
in this manual may be performed by the operator.
Refer to the list on the next page and check each
of the items.
Ifdamage or anyunauthorizedvariationfrom
factory delivered condition is discovered, the
machinemustbetaggedandremovedfrom
service.
Repairs to the machine may only be made by a
qualified service technician, according to the
manufacturer'sspecifications.Afterrepairsare
completed,the operator mustperforma
pre-operationinspectionagainbeforegoingonto
the function tests.
Scheduledmaintenanceinspectionsshallbe
performedbyqualifiedservice technicians,
accordingtothemanufacturer'sspecificationsand
the requirements listed in the responsibilities
manual.

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 13
PRE-OPERATIONINSPECTION
Pre-operation Inspection
RBe sure that the operator’s, safety and
responsibilitiesmanualsarecomplete,legible
and in the storage container located in the
platform.
RBe sure that all decals are legible and in place.
See Decals section.
RCheck for engine oil leaks and proper oil level.
Add oil if needed. See Maintenance section.
RCheck for hydraulic oil leaks and proper oil level.
Add oil if needed. See Maintenance section.
RCheckfor engine coolant leaks andproper level
of coolant. Add coolant if needed. See
Maintenancesection.
RCheck for battery fluid leaks and proper fluid
level. Add distilled water if needed. See
Maintenancesection.
RCheckfor proper tirepressure. Add air ifneeded.
SeeMaintenancesection.
Checkthefollowingcomponents or areas for
damage,improperly installed or missing parts and
unauthorizedmodifications:
RElectricalcomponents,wiringand
electrical cables
RHydraulic hoses, fittings, cylinders and
manifolds
RFuel and hydraulic tanks
RDriveand turntable motors and drivehubs
RBoomwearpads
RAxlewear pads
RTiresandwheels
REngineandrelatedcomponents
RLimit switches and horn
RAlarmsandbeacons(ifequipped)
RNuts, bolts and other fasteners
RPlatformentry mid-rail or gate
Checkentiremachinefor:
RCracks in welds or structural components
RDentsor damage to machine
RExcessive rust, corrosion or oxidation
RBe sure that all structural and other critical
componentsare present and all associated
fastenersand pins are inplace and properly
tightened.
RAfter you complete your inspection, be sure that
all compartment covers are in place and
latched.

Operator'sManual Fifth Edition • Third Printing
14 S-80 • S-85 PartNo.1000231
Maintenance
Observe and Obey:
Only routine maintenance items specified in this
manualshallbeperformedbytheoperator.
Scheduledmaintenanceinspectionsshallbe
completed by qualified service technicians,
accordingto the manufacturer's specifications
andthe requirements specified inthe
responsibilitiesmanual.
MaintenanceSymbolsLegend
Thefollowingsymbolshavebeen
used in this manual to help
communicate the intent of the
instructions. When one or more of
the symbols appear at the
beginningofamaintenance
procedure,itconveys the meaning
below.
Indicates that tools will be required to
performthisprocedure.
Indicates that new parts will be required to
performthisprocedure.
Indicates that a cold engine is required
beforeperformingthisprocedure.
Check the Engine Oil Level
Maintaining the proper engine oil level is essential
togood engine performance and service life.
Operatingthe machine with an improper oil level
candamageenginecomponents.
Check the oil level with the
engineoff.
1 Check the oil dipstick. Add oil as needed.
Ford LRG-423 EFI Engine (EPA compliant)
Oil type 10W-40
Oil type - cold conditions 5W-30
Deutz BF4L 2011 Engine (Tier ll )
Oil type 15W-40
Oil type - cold conditions 5W-30
Perkins 804C-33 Engine
Oil type 15W-40
Oil type - cold conditions 5W-40

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 15
Check the Engine Coolant Level
- Liquid Cooled Models
Maintaining the engine coolant at the proper level is
essential to engine service life. Improper coolant
level will affect the engine's cooling capability and
damageengine components. Daily checks will
allow the inspector to identify changes in coolant
level that might indicate cooling system problems.
Burnhazard.Bewareofhotengine
parts and coolant. Contact with hot
enginepartsand/orcoolant may
causesevere burns.
1 Check the fluid level in the coolant recovery
tank. Add fluid as needed.
Result: The fluid level should be at the
FULLmark.
Donot remove the radiatorcap.
MAINTENANCE
Check the Hydraulic Oil Level
Maintaining the hydraulic oil at the proper level is
essentialtomachineoperation.Improperhydraulic
oil levels can damage hydraulic components. Daily
checks allow the inspector to identify changes in oil
level that might indicate the presence of hydraulic
system problems.
1 Be sure that the axles are fully retracted and the
boom is in the stowed position.
2 Visually inspect the sight gauge located on the
side of the hydraulic oil tank. Add oil as needed.
Result: The hydraulic oil level should be within
the top 2 inches / 5 cm of the sight gauge.
Hydraulic oil specifications
Hydraulic oil type Chevron Rykon
Premium MV equivalent

Operator'sManual Fifth Edition • Third Printing
16 S-80 • S-85 PartNo.1000231
Check the Batteries
Proper battery condition is essential to good engine
performanceandoperationalsafety.Improperfluid
levels or damaged cables and connections can
resultinenginecomponentdamageandhazardous
conditions.
Thisproceduredoesnotneedto
beperformedonmachineswith
sealedormaintenance-free
batteries.
Electrocutionhazard. Contactwith
hot or live circuits may result in
death or serious injury. Remove all
rings,watches and other jewelry.
Bodily injury hazard. Batteries
contain acid. Avoid spilling or
contactingbattery acid. Neutralize
battery acid spills with baking soda
andwater.
The controls battery is behind the
starterbattery.
1 Put on protective clothing and eye wear.
2 Be sure that the battery cable connections are
tight and free of corrosion.
MAINTENANCE
3 Besure that the battery hold-downbarsare
secure.
4 Remove the battery vent caps.
5 Check the battery acid level. If needed,
replenish with distilled water to the bottom of the
battery fill tube. Do not overfill.
6 Install the vent caps.
Addingterminalprotectorsanda
corrosionpreventativesealantwill
helpeliminatecorrosionon the
battery terminals and cables.

Operator'sManualFifth Edition • Third Printing
PartNo.1000231 S-80 • S-85 17
Check the Tire Pressure
Thisproceduredoesnotneed
tobeperformedonmachines
equippedwiththefoam-filled
tireoption.
Bodily injury hazard. An over-
inflated tire can explode and could
cause death or serious injury.
Tip-overhazard. Do notuse
temporaryflat tire repairproducts.
To safeguard maximum stability, achieve
optimummachinehandlingand minimizetire
wear, it is essential to maintain proper pressure
in all air-filled tires.
1 Check each tire with an air pressure gauge. Add
airasneeded.
Tire Pressure 100 psi
6.89 bar
High Flotation Tire Pressure 60 psi
4.14 bar
MAINTENANCE
Scheduled Maintenance
Maintenanceperformedquarterly,annuallyand
every two years must be completed by a person
trainedand qualifiedtoperformmaintenance on this
machineaccordingto the procedures found in the
service manual for this machine.
Machines that have been out of service for more
than three months must receive the quarterly
inspection before they are put back into service.

Operator'sManual Fifth Edition • Third Printing
18 S-80 • S-85 PartNo.1000231
Function Tests
Do Not Operate Unless:
You learn and practice the principles of safe
machineoperationcontainedinthisoperator's
manual.
1 Avoidhazardoussituations.
2 Alwaysperformapre-operation
inspection.
3 Alwaysperformfunctiontestspriorto
use.
Knowandunderstandthefunctiontests
before going on to the next section.
4 Inspect the workplace.
5 Only use the machine as it was intended.
Fundamentals
The function tests are designed to discover any
malfunctions before the machine is put into service.
Theoperator must follow the step-by-step
instructions to test all machine functions.
A malfunctioning machine must never be used. If
malfunctions are discovered, the machine must be
tagged and removed from service. Repairs to the
machine may only be made by a qualified service
technician,accordingtothemanufacturer's
specifications.
Afterrepairsarecompleted,theoperator must
performapre-operationinspectionandfunction
tests again before putting the machine into service.
1 Select a test area that is firm, level and free of
obstruction.
At the Ground Controls
2 Turn the key switch to ground control.
3 Pull out the red Emergency Stop button to
the on position.
Result:Thebeacon(ifequipped)should flash.
4 Startthe engine. SeeOperating Instructions
section.
TestEmergencyStop
5 Push in the red Emergency Stop button to the
off position.
Result: The engine should turn off and all
functionsshould not operate.
6 Pull out both red Emergency Stop buttons to
the on position and restart the engine.
TesttheExtendableAxles
Note: Start this test with the axles retracted.
7 Hold the function enable switch to
either side and activate the boom
upfunction.
Result: The boom should raise to 8° above
horizontal and then stop. The boom should not
raise above the limit switch unless both axles
areextended.
8 Hold the function enable switch to either side
and activate the boom down function.
Result:The boom should lowerandreturn to the
stowedposition.