Skytrak 8042 Operation Manual User Manual

8990500 CPrinted in U.S.A. 2/07OWNERS/OPERATORSMANUALModel 8042(S/N 18991 thru 19984and S/N 0160002332 thru 0160029584)Keep this manual with the vehic

8Model 8042 Rev. 11/03Safety PracticesAvoidance SymbolsOH2320 OH2330OH2310 OH2270OH2280OH2290Keep Lit Cigarettes AwayKeep Away From Rotating Fan Blade

98Model 8042 Rev. 11/03Emergency OperationsBOOM LOWER LINE FAILURE (Lift Cylinders to Control Valve)1. Clear the area of any unnecessary personnel.2.

Emergency Operations99Model 8042 Rev. 11/039. Check the hydraulic oil level and add oil if needed.10. Remove the blocking or support from the outer bo

100Model 8042 Rev. 11/03Emergency Operations12. Tilt the carriage and/or attachment upward if necessary for clear-ance before retracting the boom.13.

Emergency Operations101Model 8042 Rev. 11/03BOOM RETRACT LINE FAILURE 1. Clear the area of any unnecessary personnel.2. Place the travel select lever

102Model 8042 Rev. 11/03Emergency OperationsNOTE: If a replacement hose is not available, the adjacent boom extend line (1) can be used to replace the

Emergency Operations103Model 8042 Rev. 11/031OH2211221

104Model 8042 Rev. 11/03General MaintenanceGeneral MaintenanceThis section of the manual contains a maintenance schedule and checklist with references

General Maintenance105Model 8042 Rev. 11/0310 Hour IntervalsMaintenance Schedule And ChecklistDrain Fuel/Water SeparatorCheck Engine Coolant LevelChec

106Model 8042 Rev. 11/03General MaintenanceAt First 50 Hours of Use50 Hour IntervalsChange Engine Oiland FilterChange Transmission FilterChange Hydrau

General Maintenance107Model 8042 Rev. 11/03250 Hour Intervals500 Hour IntervalsChange Air FilterLubricate Pivot PointsChange Engine Oil and FilterPara

Safety Practices9Model 8042 Rev. 11/03Avoidance Symbols (cont’d)OH2260 OH2250OH2240 OH2230OH2170Engage Parking BrakeDo Not Travel With Personnel In Wo

108Model 8042 Rev. 11/03General Maintenance1000 Hour IntervalsCheck Boom Chain Tension Inspect Wear PadsChange Transmission Oil And FilterParagraph Re

General Maintenance109Model 8042 Rev. 11/032000 Hour IntervalsChange Engine CoolantParagraph Ref.3BOH20702000

110Model 8042 Rev. 11/03General MaintenanceLubricate the following grease fittings using Multi-Purpose Grease (MPG):A. Carriage pivot pins...

General Maintenance111Model 8042 Rev. 11/032/2/ABCDEFGHIBJFFGGJFIFKLubrication PointsOH2980

112Model 8042 Rev. 11/03General MaintenanceNEVER operate the vehicle without the air cleaner assembly and both filters in place.A. Filter Check1. Grou

General Maintenance113Model 8042 Rev. 11/033. Remove dust from vacuator valve by squeezing bottom of vacuator (4) to allow loose particles to fall out

114Model 8042 Rev. 11/03General MaintenanceTo change elements:1. Pull the air cleaner cover lock (1) OUT, turn the air cleaner cover (2) counterclockw

General Maintenance115Model 8042 Rev. 11/03C. Air Intake System-Inspection Inspect the intake piping for cracked hoses, loose clamps or punctures whic

116Model 8042 Rev. 11/03General MaintenanceA. Engine Coolant Level Check 1. Level the vehicle, ground the carriage, place the travel select lever in (

General Maintenance117Model 8042 Rev. 11/03B. Drain And Flush Radiator 1. Level the vehicle, ground the carriage, place the travel select lever in (N)

10Model 8042 Rev. 11/03Safety Practices1. Seat BeltAlways fasten the seat belt before starting the engine.2. Clothing and Safety GearDO NOT wear loose

118Model 8042 Rev. 11/03General MaintenanceNOTE: Use the hose attached to the petcock to allow draining directly into a container.4. Allow coolant to

General Maintenance119Model 8042 Rev. 11/03Engine Oil RecommendationsThe use of quality engine oil combined with the appropriate oil and filter change

120Model 8042 Rev. 11/03General Maintenance4. If oil is low, remove oil fill cap (1) and add 15W40 motor oil that at least meets the manufacturers min

General Maintenance121Model 8042 Rev. 11/03B. Oil And Filter Change 1. Operate the engine until warm (approximately 5 minutes).2. Level the vehicle,ra

122Model 8042 Rev. 11/03General Maintenance10. Install the drain plug (1) into the oil pan and tighten securely.11. Unlock and open right side engine

General Maintenance123Model 8042 Rev. 11/03A. Drain Water From Fuel Water Separator/Filter Unlock and open the right engine access door. Loosen drain

124Model 8042 Rev. 11/03General MaintenanceB. Change Fuel Filter The fuel filter (1) must be changed at shorter intervals with water evidence or conta

General Maintenance125Model 8042 Rev. 11/03C. Replace In-line Fuel Strainer1. Unlock and open the right engine access door.2. The in-line fuel straine

126Model 8042 Rev. 11/03General MaintenanceD. Bleeding Fuel SystemAir must be vented from the fuel system whenever any component between the fuel tank

General Maintenance127Model 8042 Rev. 11/03The process to vent the high pressure fuel lines involves energizing the starter motor to rotate the cranks

Safety Practices11Model 8042 Rev. 11/03C. Ether or High Energy Starting AidsThe engine utilizes a grid heating system inside the induction manifold fo

128Model 8042 Rev. 11/03General MaintenanceA. Engine Fan Belt Check1. Ground the carriage, place the travel select lever in (N) NEUTRAL, move the neut

General Maintenance129Model 8042 Rev. 11/03A. Hydraulic System OilHydraulic system oil can be either a hydraulic oil meeting the requirements of ISO G

130Model 8042 Rev. 11/03General MaintenanceB. Hydraulic Oil Level Check1. Be sure all cylinders are fully retracted and oil is at room tem-perature.2.

General Maintenance131Model 8042 Rev. 11/03C. Hydraulic Oil & Filter Change(Filter Only)(Oil & Filter)Change the hydraulic oil filter after th

132Model 8042 Rev. 11/03General Maintenance4. Clean area around filter head (1). Loosen but do not remove the nuts that secure the filter head to the

General Maintenance133Model 8042 Rev. 11/03A. Transmission Oil Level Check1. Level the vehicle, ground the carriage, place travel select lever in (N)

134Model 8042 Rev. 11/03General MaintenanceB. Transmission Oil & Filter Change(Filter Only)(Oil & Filter)Change the transmission oil filter af

General Maintenance135Model 8042 Rev. 11/033. Allow the transmission to cool.4. Place a receptacle under the transmission drain plug (3). Remove the d

136Model 8042 Rev. 11/03General MaintenanceA. Axle Oil Level Check1. Level the vehicle, ground the carriage, place the travel select lever in (N) NEUT

General Maintenance137Model 8042 Rev. 11/03B. Axle Oil ChangeNOTE: At the 1000 Hour Interval Oil Change also inspect the brake disk wear. Refer to “Br

12Model 8042 Rev. 11/03Safety PracticesE. BatteriesThe following WARNING is intended to supplement and does not replace the warnings and information p

138Model 8042 Rev. 11/03General MaintenanceA. Brake Disk Wear Check(1000 Hour Intervals)Check the brake disks for wear every 1,000 hours of operation

General Maintenance139Model 8042 Rev. 11/033. Attach a remote portable hydraulic pressurizing unit to the parking brake gauge port (3) on the secondar

140Model 8042 Rev. 11/03General Maintenance5. Pressurize the park brake with the pressurizing unit. Close the pump needle valve on the pressurizing un

General Maintenance141Model 8042 Rev. 11/03B. Rear Axle1. Working through the level plug hole (1), carefully use a screwdriver to spread the brake dis

142Model 8042 Rev. 11/03General MaintenanceA. Wheel End Oil Level Check1. Position the vehicle on level ground, move the vehicle forward or backward e

General Maintenance143Model 8042 Rev. 11/03B. Wheel End Oil Change1. Position the vehicle on level ground, move the vehicle forward or backward enough

144Model 8042 Rev. 11/03General MaintenanceA. Tire Air Pressure CheckCheck all four tires:1. Remove the valve stem cap.2. Check tire pressure using a

General Maintenance145Model 8042 Rev. 11/03B. Wheel Lug Nut Torque Check1. Wire brush the area around the lug nuts if necessary.There are sep-arate lo

146Model 8042 Rev. 11/03General MaintenanceThe batteries in this vehicle are maintenance free type batteries. They are shipped in the vehicle filled w

General Maintenance147Model 8042 Rev. 11/03Battery ChargingUnder normal conditions, the engine alternator will have no problem keeping the batteries c

Safety Practices13Model 8042 Rev. 11/035. Moving Parts HazardDO NOT place limbs near moving parts. Severing of any body part can result.Turn OFF engin

148Model 8042 Rev. 11/03General MaintenanceThe fuses and relays in this vehicle protect the electrical system. The fuses most often fail if there is a

General Maintenance149Model 8042 Rev. 11/03No. Amp/Volt Color Circuit Protected340 Amp Orange Main4 7.5 Amp Brown Light Switch Relay5 10 Amp Red Instr

150Model 8042 Rev. 11/03General MaintenanceCold Start Grid Heater FusesThe two 125 amp fuses (1) that protect the cold start grid heater are located i

General Maintenance151Model 8042 Rev. 11/03ECM Fuses and RelayThe three fuse holders (6), that protect the ECM diagnostic system, are located inside t

152Model 8042 Rev. 11/03General MaintenanceA. Boom Chain Tension CheckCheck the boom chain tension by measuring the top boom extend chain sag.NOTE: Th

General Maintenance153Model 8042 Rev. 11/03Before making any adjustments to the extend chains, check the following measurement at the rear of the boom

154Model 8042 Rev. 11/03General Maintenance7. If the measurement is more than 11" (279 mm), tighten the retract chain locknut (1) located on the

General Maintenance155Model 8042 Rev. 11/0311. Measure the sag (3) in the top boom extend chains (4) between the bottom of the chains and the top of t

156Model 8042 Rev. 11/03General MaintenanceB. Top Boom Chain Tension Adjustment(As required)NOTE: Always perform the “Boom Chain Tension Check” starti

General Maintenance157Model 8042 Rev. 11/034. Start the vehicle and cycle the boom in and out several times. With the boom horizontal, fully extend th

14Model 8042 Rev. 11/03Safety Practices1. Preparation and PreventionKnow the location and function of all vehicle controls.Make sure all persons are a

158Model 8042 Rev. 11/03General MaintenanceC. Boom Chain Inspection(250 Hour Intervals)Under normal operating conditions the boom chains will need to

General Maintenance159Model 8042 Rev. 11/03Following are some examples of dynamic shock loading which can impose abnormal loads above the endurance li

160Model 8042 Rev. 11/03General MaintenanceInspection Guidelines1. Park the vehicle on level ground. Place the travel select lever in (N) NEUTRAL, pla

General Maintenance161Model 8042 Rev. 11/03ElongationWhen the original length (3) of 12.00" (305 mm) per foot of new chain has elongated from wea

162Model 8042 Rev. 11/03General MaintenanceTurning or Protruding PinsHighly loaded chain, operating with inadequate lubrication can generate abnormal

General Maintenance163Model 8042 Rev. 11/03Cracked PlatesInspect the chains very carefully, front and back as well as side to side, for any evidence o

164Model 8042 Rev. 11/03General MaintenanceD. Chain Lubrication(1000 Hour Intervals)After inspection and before being returned to service, chains must

General Maintenance165Model 8042 Rev. 11/03E. Wear Pad InspectionVisually inspect boom wear pads between the boom sections at the rear and front of th

166Model 8042 Rev. 11/03General MaintenanceF. Wear Pad Replacement(As Wear Pad Indicators Indicate)Each boom pad (1) is manufactured with a convenient

General Maintenance167Model 8042 Rev. 11/03StorageA. Before StoringPerform the following steps prior to placing the vehicle in storage:1. Clean the en

Safety Practices15Model 8042 Rev. 11/034. Underground HazardsKnow the location of all underground hazards before operating this vehicle in a new area

168Model 8042 Rev. 11/03General Maintenance6. Review and familiarize yourself and any other operator with all the safe and proper operating procedures

Test Procedures169Model 8042 Rev. 11/03Test ProceduresTo test the function of the Stabil-TRAK system, read the Stabil-TRAK system test instructions on

170Model 8042 Rev. 11/03Test ProceduresStabil-TRAK System Test ProceduresStep 1a. Place the vehicle on a level surface with 0° sway.b. Have the boom f

Test Procedures171Model 8042 Rev. 11/03IMPORTANT! Perform Steps 5 thru 9 with the engine rpm at idle.Step 5a. Keep the service brake pedal depressed.b

172Model 8042 Rev. 11/03Test ProceduresIf steps 1 through 9 prove positive, the Stabil-TRAK system is functioning properly and the vehicle can be retu

Test Procedures173Model 8042 Rev. 11/03To check that the parking brake/transmission de-clutch system is functioning properly, perform the following te

174Model 8042 Rev. 11/03Test ProceduresTest 3 - Park Brake Hold Performancea. With the rated load of 8,000 lbs (3.629 Kg) on the forks, drive the vehi

Test Procedures175Model 8042 Rev. 11/03If the vehicle does not drive “straight,” the steering could be out-of-phase. Perform the following Four Wheel

176Model 8042 Rev. 11/03SpecificationsSpecificationsEngine Crankcase Oil:Capacity with Filter Change ... 10.5 quarts

Specifications177Model 8042 Rev. 11/03Axles:Differential Housing Capacity (Front Axle) ...9.5 quarts (9 liters)Differential Housing C

16Model 8042 Rev. 11/03Safety Practices6. Elevating PersonnelUse only a compliant work platform meeting the ASME B56.6 standards for lifting and lower

178Model 8042 Rev. 11/03SpecificationsBasic Vehicle:Model 8042 Curb Weight (with Open Cab)...25,365 lbs (11505 Kg)Model 8042 Curb Weight (w

Specifications179Model 8042 Rev. 11/03Rating:...12V DC Negative GroundNumber of Batteries: ..

180Model 8042 Rev. 11/03SpecificationsGrid Heater Fuse Ratings:125 Amp ...

Index181Model 8042 Rev. 11/03AAccelerator Pedal ...23Accident Prevention Tags ...5Air Cleaner ...

Index182Model 8042 Rev. 11/03Explosive Fuel ... 10FFalling Load Hazard ... 13, 19Fan Control ...

Index183Model 8042 Rev. 11/03Preparation and Prevention ...14Primary Element ...113QQuick Attach ...

Index184Model 8042 Rev. 11/03WWarning Indicator Lights ... 38Wear Pad Inspection ... 165Wear Pad Replacement ...

Accident Prevention TagsAccident Prevention Tags8990401 Origin 5/00OS2180

Accident Prevention TagsOS21808990401 Origin 5/00

Replacement ManualsIf the owner/operator or safety manuals that were originally shipped with your vehicle are lost, stolen or need replacement, contac

Safety Practices17Model 8042 Rev. 11/037. Tip Over HazardTraveling with the boom raised is dangerous and can cause tipover. Keep the boom as low as po

WARNING: Improper operation of this vehicle can cause injury or death. Only trained and authorized operators should operate this vehicle.Before start

18Model 8042 Rev. 11/03Safety Practices9. Tire PressureMAINTAIN proper tire pressures at all times. An underpressurized tire(s) adversely affects vehi

Safety Practices19Model 8042 Rev. 11/0311.SlopesDO NOT park the vehicle on an incline and leave it unattended.• Driving across a slope is dangerous, a

20Model 8042 Rev. 11/03Safety PracticesDO NOT by-pass or disconnect any electrical or hydraulic circuits. Consult the JLG Service Department or your l

Safety Practices21Model 8042 Rev. 11/03WARNINGAllow no ridersAVOIDCRUSHING,falling offvehicle cancause deathor seriousinjury DO NOT JUMP. Brace your

22Model 8042 Rev. 11/03Safety PracticesFALLING OFF ATTACHMENT,can result in death orserious injury.DO NOT TRAVELwith personnel ina work platform.41103

Operation23Model 8042 Rev. 11/03OperationAccelerator PedalPressing down the accelerator pedal (8) increases engine and hydraulic speed of the vehicle.

24Model 8042 Rev. 11/03OperationIgnition SwitchUsing the ignition switch key (1), the switch may be turned clockwise from the OFF (2) position to the

Operation25Model 8042 Rev. 11/03Steering Select SwitchThis vehicle has one steering select switch (5) with three positions. The switch is located in t

26Model 8042 Rev. 11/03OperationPark Brake SwitchThe Parking Brake Switch (1) has two positions:ENGAGED... toggle switch downwardDISENGAGED..

Operation27Model 8042 Rev. 11/03Neutral Lock LeverThe Travel Select Lever (2) is equipped with a neutral lock. The Neutral Lock Lever (3) locks the Tr

Table of Contents1ã 2003 JLG Industries, Inc.IntroductionThe Manual...2Replacement Parts...2Repo

28Model 8042 Rev. 11/03OperationTravel Select LeverThe Travel Select Lever (1) has three positions to select direction of travel:F = FORWARD (2)...

Operation29Model 8042 Rev. 11/03Gear Select LeverThe Gear Select Lever (5) has a twist grip handle with four positions. Vehicles have four forward gea

30Model 8042 Rev. 11/03OperationBoom Control LeverThe boom control lever (1) is a joystick with variable motion from the center to control the boom fu

Operation31Model 8042 Rev. 11/03Attachment Tilt and Frame Sway Control LeverThe attachment tilt and frame sway control is a joystick (2) with four per

32Model 8042 Rev. 11/03OperationSeat BeltIMPORTANT! Inspect the seat belt every time it is used, looking for cut or worn webbing, or any defect in the

Operation33Model 8042 Rev. 11/03Operator’s Seat AdjustmentThe operator’s seat can be adjusted three ways:A. Fore and Aft AdjustmentPull the handle (4)

34Model 8042 Rev. 11/03OperationHourmeterThe hourmeter (1) records engine operating hours and has a total readout of 9,999.99 hours. It is located at

Operation35Model 8042 Rev. 11/03Instrument Cluster Light TestTest the bulbs in the instrument cluster before starting the engine.Turn the ignition swi

36Model 8042 Rev. 11/03OperationFunction Indicator LightsA. Stabil-TRAK Indicator LightThe Stabil-TRAK light (1) will come ON when the system has been

Operation37Model 8042 Rev. 11/03B. Park Brake LightThe park brake light (2) illuminates any time the park brake is applied and the ignition switch is

2Model 8042 Rev. 11/03IntroductionIntroductionThis Owners/Operators Manual provides the information you need to properly operate and maintain this veh

38Model 8042 Rev. 11/03OperationWarning Indicator LightsThere are five additional indicator lights in the instrument cluster that will illuminate duri

Operation39Model 8042 Rev. 11/03D. Engine Oil Pressure Warning Indicator LightThe engine oil pressure warning indicator light (4) will come ON during

40Model 8042 Rev. 11/03OperationFunction Indicator LightsThere are two additional indicator lights located on the right side of the front dash:A. Engi

Operation41Model 8042 Rev. 11/03B. Engine Function Indicator LightsThe engine function indicator lights (2) are located in the upper switch bank on th

42Model 8042 Rev. 11/03OperationFrame Level IndicatorThe indicator (1) is mounted on the top inside of the Operator's Protective Structure (cab).

Operation43Model 8042 Rev. 11/03Rear View MirrorsTwo rear view mirrors are provided to aid the operator's rear vision. A rectangular flat lens mi

44Model 8042 Rev. 11/03OperationAuxiliary Attachment Control LeverThe auxiliary attachment control lever (1) controls the functions of an optional att

Operation45Model 8042 Rev. 11/03Worklight Switch (Front, Rear & Boom Worklights)This three position rocker switch (2) controls the front, rear and

46Model 8042 Rev. 11/03OperationBeacon Light SwitchThis rocker switch (1) turns the beacon light ON and OFF. The switch is located in the lower switch

Operation47Model 8042 Rev. 11/03Worklight Switch (with Optional Road Lights)This rocker switch (2) activates the worklight system. The switch is locat

Safety Practices3Model 8042 Rev. 11/03Safety PracticesJLG reserves the right to make changes on and to add improvements upon its products at any time

48Model 8042 Rev. 11/03OperationEmergency FlashersThis switch (1) is located in the upper switch bank on the right side dash panel.• To ACTIVATE the e

Operation49Model 8042 Rev. 11/03Turn SignalsThe directional signals are ACTIVATED from the lever (2) on the right side of the steering wheel and will

50Model 8042 Rev. 11/03OperationWindshield Wiper ControlThis three position rocker switch (1) controls the speed of the windshield wiper. This switch

Operation51Model 8042 Rev. 11/03Skylight Wiper ControlThis rocker switch (2) turns the skylight wiper ON and OFF. This switch is located in the lower

52Model 8042 Rev. 11/03OperationCab Heater & Fan ControlThe cab heater controls (1) are located directly below the switch banks on the right side

Operation53Model 8042 Rev. 11/03Rear Window LatchThe rear window (5) can be partially opened and secured in place with the rear window latch (6). To o

54Model 8042 Rev. 11/03Operation1. Check safety belt for damage. Check for frayed or cut seat belt web-bing, damaged buckles or loose mounting bracket

Operation55Model 8042 Rev. 11/031. Enter the cab using the hand holds and adjust the seat for comfort-able operation.2. Adjust the mirrors to obtain t

56Model 8042 Rev. 11/03OperationThe engine is equipped with a 120 volt 750 watt block heater. Block heaters are recommended when temperatures drop bel

Operation57Model 8042 Rev. 11/038. The engine oil pressure warning indicator light should go OFF within five seconds after starting. If the light rema

4Model 8042 Rev. 11/03Safety PracticesSignal WordA signal word is a distinctive word located on hazard decals and used throughout this manual that ale

58Model 8042 Rev. 11/03OperationMake sure the vehicle is level to assure an accurate fuel level reading. The fuel tank is capable of holding 37 gallon

Operation59Model 8042 Rev. 11/03Fuel CapUnlock the fuel cap (1) through the fuel cap access hole (2).Slowly remove the fuel cap from the fuel fill nec

60Model 8042 Rev. 11/03OperationUnderstanding the Stabil-TRAK SystemThe following describes the three basic modes of the patented Stabil-TRAK system.

Operation61Model 8042 Rev. 11/03Locked ModeWith the boom above 40° (4) and by activating one or more of the functions (as follows), the Stabil-TRAK sy

62Model 8042 Rev. 11/03OperationSlow Pivot ModeWith the boom above 40° (1), the Stabil-TRAK System is now in the SLOW PIVOT MODE (2). In this mode the

Operation63Model 8042 Rev. 11/03Starting Travel1. Enter the operator cab, fasten the seat belt, start the engine, apply the service brake pedal and di

64Model 8042 Rev. 11/03OperationShifting Gears1. Rotate the twist grip of the gear select lever to the next desired gear. The transmission has four fo

Operation65Model 8042 Rev. 11/03Steering ModesIMPORTANT! DO NOT change steering modes unless you are at a complete stop and all four tires are in the

66Model 8042 Rev. 11/03OperationFour Wheel Steer IndexingIf the vehicle does not drive “straight,” the steering could be ”out of phase.” Perform the “

Operation67Model 8042 Rev. 11/032. Front Wheel SteeringThe front wheels will steer in the direction that the steering wheel is turned. The rear wheels

Safety Practices5Model 8042 Rev. 11/03Before beginning any maintenance or service, place an Accident Prevention Tag (1) on both the starter key switch

68Model 8042 Rev. 11/03Operation3. Crab SteeringAll wheels will steer in the same direction that the steering wheel is turned. This steering mode allo

Operation69Model 8042 Rev. 11/034. Maximum Fork SweepLeveling FrameWhen placing a load while on a slope, use the frame sway control to keep the vehicl

70Model 8042 Rev. 11/03OperationQuick AttachThis vehicle is equipped with a quick attach system for easy attachment changing.Attachment RemovalBe sure

Operation71Model 8042 Rev. 11/03Attachment ReconnectBe sure you are performing this procedure on level ground.1. Position the vehicle directly behind

72Model 8042 Rev. 11/03OperationThe individual capacity charts are located inside a booklet (1) on the right side of the front dash. Capacity charts a

Operation73Model 8042 Rev. 11/03As the boom is extended, boom extend letters (2) will appear on the left side of the intermediate boom (4) visible to

74Model 8042 Rev. 11/03OperationReading The Capacity ChartExample (1):1. The operator has placed the load onto the forks, fully retracted the boom, po

Operation75Model 8042 Rev. 11/03Standard Carriage Capacity ChartWITH SKY TRAK MANUFACTUREDSTANDARD CARRIAGES ONLY41104388042ASME B56.6 - 2002 PART lll

76Model 8042 Rev. 11/03OperationSide Tilt Carriage Capacity ChartWITH SKY TRAK MANUFACTUREDSIDE TILT CARRIAGES ONLY4110439804224284812162024 0 ft280

Operation77Model 8042 Rev. 11/03Swing Carriage Capacity ChartWITH SKY TRAK MANUFACTUREDSWING CARRIAGES ONLY41104408042121618.522.527.59.5280 ft4812162

6Model 8042 Rev. 11/03Safety PracticesThe following symbol definitions will help you understand all hazard related decals and load charts used on this

78Model 8042 Rev. 11/03Operation12 Foot Truss Boom Capacity ChartWITH SKY TRAK MANUFACTURED12' TRUSS BOOMS ONLY411044180423035.528 4812162024 0 f

Operation79Model 8042 Rev. 11/033 Foot Truss Boom w/Winch Capacity Chart41103768042284812162024 0 ft280 ft481216202432364044-4162127ABCDE40°68°0°10°20

80Model 8042 Rev. 11/03OperationThis Page Intentionally Left Blank

Operation81Model 8042 Rev. 11/03All approved forks for this vehicle are marked with a maximum load capacity rating. This rating is stamped on the left

82Model 8042 Rev. 11/03OperationTo pick a load, tilt the carriage forward so the forks hang freely on the fork shaft. Move the forks inward or outward

Operation83Model 8042 Rev. 11/03b. Width of the platform shall not be wider than the width of the vehicle, measured across the load bearing tires plus

84Model 8042 Rev. 11/03Operation10. A body belt and lanyard is to have an attaching point for freedom of movement, and its length is to limit free fal

Operation85Model 8042 Rev. 11/036. Be sure the vehicle is in a level position (side to side) before any operation is begun. Use the frame sway to leve

86Model 8042 Rev. 11/03OperationElevating Personnel1. Make sure there are no overhead obstructions or electrical wires above the platform before lifti

Operation87Model 8042 Rev. 11/03Numerous attachments, marketed by JLG are available for this vehicle. The capacity charts attached to this vehicles da

Safety Practices7Model 8042 Rev. 11/03Hazard Symbols-OH2110OH2120OH2300OH2130OH2140OH2150OH2161Lead Acid Batteries Generate Explosive GasesRotating Fa

88Model 8042 Rev. 11/03Operation1. Bring the vehicle to a complete stop using the service brakes.2. Park the vehicle on level ground.3. Place the trav

Emergency Operations89Model 8042 Rev. 11/03Emergency OperationsTowing a disabled vehicle should only be attempted after exhausting all other options.

90Model 8042 Rev. 11/03Emergency Operations4. Position the towing vehicle in place. Attach any chains needed to secure the disabled vehicle.5. Attach

Emergency Operations91Model 8042 Rev. 11/03This section discusses emergency boom lowering procedures:Part I In case of loss of engine power or hydrau

92Model 8042 Rev. 11/03Emergency OperationsPart ll - Hydraulic Line FailureIn case of hydraulic line failure, there are step-by-step procedures availa

Emergency Operations93Model 8042 Rev. 11/03In any case of hydraulic line failure, it is critical to correctly identify which hydraulic line has failed

94Model 8042 Rev. 11/03Emergency Operations1. Clear the area of any unnecessary personnel.2. Place the travel select lever in (N) NEUTRAL, move the ne

Emergency Operations95Model 8042 Rev. 11/0313. Shut off the engine.14. Completely remove the load from the carriage and/or attachment if you haven’t a

96Model 8042 Rev. 11/03Emergency OperationsUSE IN CASE OF:BOOM LIFT LINE FAILURE (Lift Cylinders to Control Valve)BOOM EXTEND LINE FAILURE1. Clear the

Emergency Operations97Model 8042 Rev. 11/0312. Return to the cab, fasten your seat belt and start the engine.13. Cycle the lift cylinder several times