Skytrak 6042 Operation Manual Manuel d'utilisateur Page 1

3126022 BPrinted in U.S.A. 2/09OWNERS/OPERATORSMANUALModel 6042(S/N 0160004111 thru 0160037382)Keep this manual with the vehicle at all times.OA1531®

8Model 6042 Origin 2/04Safety PracticesAvoidance SymbolsOH2320 OH2330OH2310OH2270OH2280OH2290Keep Lit Cigarettes AwayKeep Away From Rotating Fan Blade

98Model 6042 Origin 2/04Emergency Operations6. Replace the failed hydraulic line with a new part.• Boom Retract Line (1)• Boom Extend Line (2)• Boom L

Emergency Operations99Model 6042 Origin 2/042OA156013443112

100Model 6042 Origin 2/04Emergency OperationsUSE IN CASE OF:BOOM LIFT LINE FAILURE (Lift Cylinders to Control Valve)BOOM EXTEND LINE FAILURE1. Clear t

Emergency Operations101Model 6042 Origin 2/0412. Return to the cab, fasten your seat belt and start the engine.13. Cycle the lift/lower cylinder sever

102Model 6042 Origin 2/04Emergency OperationsBOOM LOWER LINE FAILURE (Lift Cylinders to Control Valve)1. Clear the area of any unnecessary personnel.

Emergency Operations103Model 6042 Origin 2/049. Check the hydraulic oil level and add oil if needed.10. Remove the blocking or support from the outer

104Model 6042 Origin 2/04Emergency Operations12. Tilt the carriage and/or attachment upward if necessary for clearance before retracting the boom.13.

Emergency Operations105Model 6042 Origin 2/04BOOM RETRACT LINE FAILURE 1. Clear the area of any unnecessary personnel.2. Place the travel select lever

106Model 6042 Origin 2/04Emergency OperationsNOTE: If a replacement hose is not available, the adjacent boom extend line (2) can be used to replace th

Emergency Operations107Model 6042 Origin 2/042OA15601121

Safety Practices9Model 6042 Origin 2/04Avoidance Symbols (cont’d)OH2260 OH2250OH2240 OH2230OH2170Engage Parking BrakeDo Not Travel With Personnel In W

108Model 6042 Origin 2/04General MaintenanceGeneral MaintenanceThis section of the manual contains a maintenance schedule and checklist with reference

General Maintenance109Model 6042 Origin 2/0410 Hour IntervalsMaintenance Schedule And ChecklistDrain Fuel/Water SeparatorCheck Engine Coolant LevelChe

110Model 6042 Origin 2/04General MaintenanceAt First 50 Hours of Use50 Hour IntervalsChange Engine Oiland FilterChange Transmission FilterChange Hydra

General Maintenance111Model 6042 Origin 2/04250 Hour Intervals500 Hour IntervalsChange Air FilterLubricate Pivot PointsChange Engine Oil and FilterPar

112Model 6042 Origin 2/04General Maintenance1000 Hour IntervalsCheck Boom Chain Tension Inspect Wear PadsChange Transmission Oil And FilterParagraph R

General Maintenance113Model 6042 Origin 2/042000 Hour IntervalsChange Engine CoolantParagraph Ref.3BOH20702000

114Model 6042 Origin 2/04General MaintenanceLubricate the following grease fittings using Multi-Purpose Grease (MPG)every 50 hours:A. Carriage pivot p

General Maintenance115Model 6042 Origin 2/042/2/IFIFABCFGHBJFFGGJKEDLubrication PointsOA1480

116Model 6042 Origin 2/04General MaintenanceNEVER operate the vehicle without the air cleaner assembly and both filters in place.A. Filter Check(10 Ho

General Maintenance117Model 6042 Origin 2/043. Remove dust from vacuator valve (4) by squeezing bottom of vacu-ator to allow loose particles to fall o

10Model 6042 Origin 2/04Safety Practices1. Seat BeltAlways fasten the seat belt before starting the engine.2. Clothing and Safety GearDO NOT wear loos

118Model 6042 Origin 2/04General MaintenanceTo change elements:1. Pull the air cleaner cover lock (1) OUT, turn the air cleaner cover (2) counter-cloc

General Maintenance119Model 6042 Origin 2/04C. Air Intake System-Inspection (1000 Hour Intervals)Inspect the intake piping for cracked hoses, loose cl

120Model 6042 Origin 2/04General MaintenanceA. Engine Coolant Level Check (10 Hour Intervals)1. Level the vehicle, ground the car-riage, place the tra

General Maintenance121Model 6042 Origin 2/04B. Drain And Flush Radiator (2000 Hour Intervals)1. Level the vehicle, ground the carriage, place the trav

122Model 6042 Origin 2/04General MaintenanceNOTE: Use the hose attached to the petcock to allow draining directly into a container.4. Allow coolant to

General Maintenance123Model 6042 Origin 2/04Engine Oil RecommendationsThe use of quality engine oil combined with the appropriate oil and filter chang

124Model 6042 Origin 2/04General Maintenance4. If oil is low, remove oil fill cap (1) and add 15W40 motor oil that at least meets the manufacturers mi

General Maintenance125Model 6042 Origin 2/04B. Oil And Filter Change (First 50 Hours)(250 Hour Intervals)1. Operate the engine until warm (approximate

126Model 6042 Origin 2/04General MaintenanceNOTE: The filter o-ring may stick to the filter head. Make sure the old o-ring is removed before installin

General Maintenance127Model 6042 Origin 2/04A. Drain Water From Fuel Water Separator/Filter (10 Hour Intervals)Unlock and open the right rear engine a

Safety Practices11Model 6042 Origin 2/04C. Ether or High Energy Starting Aids (Optional)The engine utilizes a grid heating system inside the induction

128Model 6042 Origin 2/04General MaintenanceB. Change Fuel Filter (500 Hour Intervals)The fuel filter must be changed at shorter intervals with eviden

General Maintenance129Model 6042 Origin 2/04C. Replace In-line Fuel Strainer(500 Hour Intervals)1. Unlock and open the right rear engine access door.2

130Model 6042 Origin 2/04General MaintenanceD. Bleeding Fuel SystemAir must be vented from the fuel system whenever any component between the fuel tan

General Maintenance131Model 6042 Origin 2/04The process to vent the high pressure fuel lines (6) involves energizing the starter motor to rotate the c

132Model 6042 Origin 2/04General MaintenanceA. Engine Fan Belt Check(1000 Hour Intervals)1. Ground the carriage, place the travel select lever in (N)

General Maintenance133Model 6042 Origin 2/04A. Hydraulic System OilHydraulic system oil can be either a hydraulic oil meeting the requirements of ISO

134Model 6042 Origin 2/04General MaintenanceB. Hydraulic Oil Level Check(10 Hour Intervals)1. Be sure all cylinders are fully retracted and oil is at

General Maintenance135Model 6042 Origin 2/04C. Hydraulic Oil & Filter Change(First 50 Hours)(Filter Only)(1000 Hour Intervals)(Oil & Filter)Ch

136Model 6042 Origin 2/04General Maintenance4. Clean area around filter head (1). Loosen but do not remove the nuts that secure the filter head to the

General Maintenance137Model 6042 Origin 2/04A. Transmission Oil Level Check(10 Hour Intervals)1. Level the vehicle, ground the car-riage, place travel

12Model 6042 Origin 2/04Safety PracticesE. BatteryThe following WARNING is intended to supplement and does not replace the warnings and information pr

138Model 6042 Origin 2/04General MaintenanceB. Transmission Oil & Filter Change(First 50 Hours)(Filter Only)(1000 Hour Intervals)(Oil & Filter

General Maintenance139Model 6042 Origin 2/043. Allow the transmission to cool.4. Place a receptacle under the transmission drain plug (3). Remove the

140Model 6042 Origin 2/04General MaintenanceA. Axle Oil Level Check(250 Hour Intervals)1. Level the vehicle, ground the carriage, place the travel sel

General Maintenance141Model 6042 Origin 2/04B. Axle Oil Change(First 50 Hours)(1000 Hour Intervals)NOTE: At the 1000 Hour Interval Oil Change also ins

142Model 6042 Origin 2/04General MaintenanceA. Brake Disc Wear Check(1000 Hour Intervals)Check the brake discs for wear every 1,000 hours of operation

General Maintenance143Model 6042 Origin 2/043. Attach a remote portable hydraulic pressurizing unit to the parking brake gauge port (3) on the seconda

144Model 6042 Origin 2/04General Maintenance5. Pressurize the parking brake with the pressurizing unit. Close the needle valve on the pressurizing uni

General Maintenance145Model 6042 Origin 2/04B. Rear Axle1. Working through the level plug hole (1), carefully use a screwdriver to spread the brake di

146Model 6042 Origin 2/04General MaintenanceA. Wheel End Oil Level Check(250 Hour Intervals)1. Position the vehicle on level ground, move the vehicle

General Maintenance147Model 6042 Origin 2/04B. Wheel End Oil Change(First 50 Hours)(1000 Hour Intervals)1. Position the vehicle on level ground, move

Safety Practices13Model 6042 Origin 2/045. Moving Parts HazardDO NOT place limbs near moving parts. Severing of any body part can result.Turn OFF engi

148Model 6042 Origin 2/04General MaintenanceA. Tire Air Pressure Check(10 Hour Intervals)Check all four tires:1. Remove the valve stem cap.2. Check ti

General Maintenance149Model 6042 Origin 2/04B. Wheel Lug Nut Torque Check(First 50 Hours)1. Wire brush the area around the lug nuts if necessary. Ther

150Model 6042 Origin 2/04General MaintenanceThe battery in this vehicle is a maintenance free type battery. It is shipped in the vehicle filled with e

General Maintenance151Model 6042 Origin 2/04Battery ChargingUnder normal conditions, the engine alternator will have no problem keeping the battery or

152Model 6042 Origin 2/04General MaintenanceThe fuses and relays in this vehicle protect the electrical system. The fuses most often fail if there is

General Maintenance153Model 6042 Origin 2/04No. Amp/Volt Color Circuit Protected340 Amp Orange Main4 7.5 Amp Brown Light Switch Relay5 10 Amp Red Inst

154Model 6042 Origin 2/04General MaintenanceCold Start Grid Heater Fuses (Optional)The two 125 amp fuses (1) that protect the cold start grid heater a

General Maintenance155Model 6042 Origin 2/04This Page Intentionally Left Blank

156Model 6042 Origin 2/04General MaintenanceA. Boom Chain Tension Check(First 50 Hours)(1000 Hour Intervals)Check the boom chain tension by measuring

General Maintenance157Model 6042 Origin 2/04Before making any adjustments to the extend chains, check the following measurement at the rear of the boo

14Model 6042 Origin 2/04Safety Practices1. Preparation and PreventionKnow the location and function of all vehicle controls.Make sure all persons are

158Model 6042 Origin 2/04General Maintenance7. If the measurement is more than 11" (279 mm), tighten the retract chain locknut (1) located on the

General Maintenance159Model 6042 Origin 2/0411. Measure the sag (3) in the top boom extend chains (4) between the bottom of the chains and the top of

160Model 6042 Origin 2/04General MaintenanceB. Top Boom Chain Tension Adjustment(As required)NOTE: Always perform the “Boom Chain Tension Check” start

General Maintenance161Model 6042 Origin 2/044. Start the vehicle and cycle the boom in and out several times. With the boom horizontal, fully extend t

162Model 6042 Origin 2/04General MaintenanceC. Boom Chain Inspection(250 Hour Intervals)Under normal operating conditions the boom chains will need to

General Maintenance163Model 6042 Origin 2/04Following are some examples of dynamic shock loading which can impose abnormal loads above the endurance l

164Model 6042 Origin 2/04General MaintenanceInspection Guidelines1. Park the vehicle on level ground. Place the travel select lever in (N) NEUTRAL, pl

General Maintenance165Model 6042 Origin 2/04ElongationWhen the original length (3) of 12.00" (305 mm) per foot of new chain has elongated from we

166Model 6042 Origin 2/04General MaintenanceTurning or Protruding PinsHighly loaded chain, operating with inadequate lubrication can generate abnormal

General Maintenance167Model 6042 Origin 2/04Cracked PlatesInspect the chains very carefully, front and back as well as side to side, for any evidence

Safety Practices15Model 6042 Origin 2/044. Underground HazardsKnow the location of all underground hazards before operating this vehicle in a new area

168Model 6042 Origin 2/04General MaintenanceD. Chain Lubrication(1000 Hour Intervals)After inspection and before being returned to service, chains mus

General Maintenance169Model 6042 Origin 2/04E. Wear Pad Inspection(50 Hour Intervals)Visually inspect boom wear pads between the boom sections at the

170Model 6042 Origin 2/04General MaintenanceF. Wear Pad Replacement(As Wear Pad Indicators Indicate)Each boom pad (1) is manufactured with a convenien

General Maintenance171Model 6042 Origin 2/04StorageA. Before StoringPerform the following steps prior to placing the vehicle in storage:1. Clean the e

172Model 6042 Origin 2/04General Maintenance6. Review and familiarize yourself and any other operator with all the safe and proper operating procedure

Test Procedures173Model 6042 Origin 2/04Test ProceduresTo test the function of the Stabil-TRAK system, read the Stabil-TRAK system test instructions o

174Model 6042 Origin 2/04Test ProceduresStabil-TRAK System Test ProceduresStep 1a. Place the vehicle on a level surface with 0° sway.b. Have the boom

Test Procedures175Model 6042 Origin 2/04IMPORTANT! Perform Steps 5 thru 9 with the engine rpm at idle.Step 5a. Keep the service brake pedal depressed.

176Model 6042 Origin 2/04Test ProceduresIf steps 1 through 9 prove positive, the Stabil-TRAK system is functioning properly and the vehicle can be ret

Test Procedures177Model 6042 Origin 2/04To check that the parking brake/transmission de-clutch system is functioning properly, perform the following t

16Model 6042 Origin 2/04Safety Practices6. Elevating PersonnelUse only a compliant work platform meeting the ASME B56.6 standards for lifting and lowe

178Model 6042 Origin 2/04Test ProceduresTest 3 - Park Brake Hold Performancea. With the rated load of 6,000 lbs (2.721 Kg) on the forks, drive the veh

Test Procedures179Model 6042 Origin 2/04If the vehicle does not drive “straight,” the steering could be out-of-phase. Perform the following Four Wheel

180Model 6042 Origin 2/04SpecificationsSpecificationsEngine Crankcase Oil:Capacity with Filter Change ... 10.5 quart

Specifications181Model 6042 Origin 2/04Axles:Differential Housing Capacity...12.2 quarts (11,5 liters)Type of Fluid...

182Model 6042 Origin 2/04SpecificationsWith Standard 13.00 - 24 Tires:(A) Length (less forks) ... 232 inches (

Specifications183Model 6042 Origin 2/04Rating:...12V DC Negative GroundNumber of Batteries:Wi

184Model 6042 Origin 2/04SpecificationsGrid Heater Fuse Ratings (Optional):125 Amp ...

Index185Model 6042 Origin 2/04AAccelerator Pedal ...23Accident Prevention Tags ...5Air Cleaner ...

Index186Model 6042 Origin 2/04Filter Check ... 116Fork Ratings ... 83Fork Sweep ...

Index187Model 6042 Origin 2/04RReading The Capacity Chart ...76Rear View Mirrors ...42Rear Window Latch ...

Safety Practices17Model 6042 Origin 2/047. Tip Over HazardTraveling with the boom raised is dangerous and can cause tipover. Keep the boom as low as p

Index188Model 6042 Origin 2/04WWarning Indicator Lights ... 38Wear Pad Inspection ... 169Wear Pad Replacement ...

Accident Prevention TagsAccident Prevention Tags8990401 Origin 5/00OS2180

Accident Prevention TagsOS21808990401 Origin 5/00

TRANSFER OF OWNERSHIPTo Product Owner:If you now own but ARE NOT the original purchaser of the product covered by this manual, we would like to know w

JLG Industries, Inc.1 JLG DriveMcConnellsburg PA. 17233-9533USAPhone: +1-717-485-5161Customer Support Toll Free: 1-877-554-5438Fax: +1-717-485-6417JLG

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

18Model 6042 Origin 2/04Safety Practices9. Tire PressureMAINTAIN proper tire pressures at all times. An underpressurized tire(s) adversely affects veh

Safety Practices19Model 6042 Origin 2/0411.SlopesDO NOT park the vehicle on an incline and leave it unattended.• Driving across a slope is dangerous,

20Model 6042 Origin 2/04Safety PracticesDO NOT by-pass or disconnect any electrical or hydraulic circuits. Consult the JLG Service Department or your

Safety Practices21Model 6042 Origin 2/04WARNINGAllow no ridersAVOIDCRUSHING,falling offvehicle cancause deathor seriousinjury DO NOT JUMP. Brace you

22Model 6042 Origin 2/04Safety PracticesItem Part Number Quantity Decal Description14110184 2 Moving Parts Warning2 4110172 1 Explosive Gases Warning3

Operation23Model 6042 Origin 2/04OperationAccelerator PedalPressing down the accelerator pedal (8) increases engine and hydraulic speed of the vehicle

24Model 6042 Origin 2/04OperationIgnition SwitchUsing the ignition switch key (1), the switch may be turned clockwise from the OFF (2) position to the

Operation25Model 6042 Origin 2/04Steering Select SwitchThis vehicle has one steering select switch (5) with three positions. The switch is located in

26Model 6042 Origin 2/04OperationPark Brake SwitchThe Parking Brake Switch (1) has two positions:ENGAGED... toggle switch downwardDISENGAGED.

Operation27Model 6042 Origin 2/04Neutral Lock LeverThe Travel Select Lever (2) is equipped with a neutral lock. The Neutral Lock Lever (3) locks the T

Table of Contents1 2004 JLG Industries, Inc.IntroductionThe Manual...2Replacement Parts...2Repo

28Model 6042 Origin 2/04OperationTravel Select LeverThe Travel Select Lever (1) has three positions to select direction of travel:F = FORWARD ...

Operation29Model 6042 Origin 2/04Gear Select LeverThe Gear Select Lever (2) has a twist grip handle with four positions. Vehicles have four forward ge

30Model 6042 Origin 2/04OperationBoom Control LeverThe boom control lever (1) is a joystick with variable motion from the center to control the boom f

Operation31Model 6042 Origin 2/04Attachment Tilt and Frame Sway Control LeverThe attachment tilt and frame sway control (2) is a joystick with four pe

32Model 6042 Origin 2/04OperationSeat BeltIMPORTANT! Inspect the seat belt every time it is used, looking for cut or worn webbing, or any defect in th

Operation33Model 6042 Origin 2/04Operator’s Seat AdjustmentThe operator’s seat (5) can be adjusted three ways:A. Fore and Aft AdjustmentPull the handl

34Model 6042 Origin 2/04OperationHourmeterThe hourmeter (1) records engine operating hours and has a total readout of 9,999.99 hours. It is located at

Operation35Model 6042 Origin 2/04Instrument Cluster Light TestTest the bulbs in the instrument cluster before starting the engine.Turn the ignition sw

36Model 6042 Origin 2/04OperationFunction Indicator LightsA. Stabil-TRAK Indicator LightThe Stabil-TRAK light (1) will come ON when the system has bee

Operation37Model 6042 Origin 2/04B. Park Brake LightThe park brake light (2) illuminates any time the park brake is applied and the ignition switch is

2Model 6042 Origin 2/04IntroductionIntroductionThis Owners/Operators Manual provides the information you need to properly operate and maintain this ve

38Model 6042 Origin 2/04OperationWarning Indicator LightsThere are five additional indicator lights in the instrument cluster that will illuminate dur

Operation39Model 6042 Origin 2/04C. Hydraulic Oil Temperature Warning Indicator LightThe hydraulic oil temperature light (3) illuminates when the hydr

40Model 6042 Origin 2/04OperationE. Alternator Charging Warning Indicator LightThe alternator charging light (1) illuminates when the charging system

Operation41Model 6042 Origin 2/04Frame Level IndicatorThe indicator (2) is mounted on the top inside of the Operator's Protective Structure (cab)

42Model 6042 Origin 2/04OperationRear View MirrorsTwo rear view mirrors are provided to aid the operator's rear vision. A rectangular flat lens m

Operation43Model 6042 Origin 2/04Auxiliary Attachment Control LeverThe auxiliary attachment control lever (5) controls the functions of an optional at

44Model 6042 Origin 2/04OperationWorklight Switch (Front, Rear & Boom Worklights)This three position rocker switch (1) controls the front, rear an

Operation45Model 6042 Origin 2/04Beacon Light SwitchThis rocker switch (2) turns the beacon light ON and OFF. The switch (2) is located in the upper s

46Model 6042 Origin 2/04OperationWorklight Switch (with Optional Road Lights)This rocker switch (1) activates the worklight system. The switch (1) is

Operation47Model 6042 Origin 2/04Emergency FlashersThe emergency flashers switch (2) is located in the upper switch bank on the right side dash panel.

Safety Practices3Model 6042 Origin 2/04Safety PracticesJLG reserves the right to make changes on and to add improvements upon its products at any time

48Model 6042 Origin 2/04OperationTurn SignalsThe directional signals are ACTIVATED from the lever (1) on the right side of the steering wheel. To acti

Operation49Model 6042 Origin 2/04Windshield Wiper ControlThis three position rocker switch (8) controls the speed of the windshield wiper. This switch

50Model 6042 Origin 2/04OperationSkylight Wiper ControlThis rocker switch (1) turns the skylight wiper ON and OFF. This switch is located in the lower

Operation51Model 6042 Origin 2/04Windshield & Skylight Washer ControlThis rocker switch (2) is spring loaded to return to the OFF position when re

52Model 6042 Origin 2/04OperationCab Heater & Fan ControlThe cab heater controls (1) are located directly below the switch banks on the right side

Operation53Model 6042 Origin 2/04Rear Window Latch(Figure )The rear window (5) can be partially opened and secured in place with the rear window latch

54Model 6042 Origin 2/04Operation1. Check safety belt for damage. Check for frayed or cut seat belt web-bing, damaged buckles or loose mounting bracke

Operation55Model 6042 Origin 2/041. Enter the cab using the hand holds and adjust the seat for comfort-able operation.2. Adjust the mirrors to obtain

56Model 6042 Origin 2/04OperationThe engine is equipped with a 120 volt 750 watt block heater. Block heaters are recommended when temperatures drop be

Operation57Model 6042 Origin 2/046. Turn the ignition switch to the START position to crank the starter.IMPORTANT! DO NOT crank the starting motor con

4Model 6042 Origin 2/04Safety PracticesSignal WordA signal word is a distinctive word located on hazard decals and used throughout this manual that al

58Model 6042 Origin 2/04OperationJump starting at the battery or battery replacement is required when the battery is discharged to the point where the

Operation59Model 6042 Origin 2/04Make sure the vehicle is level to assure an accurate fuel level reading. The fuel tank is capable of holding 37 gallo

60Model 6042 Origin 2/04OperationFuel CapUnlock the fuel cap (1) through the fuel cap access hole (2) in the cover on the hydraulic oil/diesel fuel re

Operation61Model 6042 Origin 2/04Understanding the Stabil-TRAK SystemThe following describes the three basic modes of the patented Stabil-TRAK system.

62Model 6042 Origin 2/04OperationLocked ModeWith the boom above 40° (1) and by activating one or more of the functions (as follows), the Stabil-TRAK s

Operation63Model 6042 Origin 2/04Slow Pivot ModeWith the boom above 40° (4), the Stabil-TRAK System is now in the SLOW PIVOT MODE (5). In this mode th

64Model 6042 Origin 2/04OperationStarting Travel1. Enter the operator cab, fasten the seat belt, start the engine, apply the service brake pedal and d

Operation65Model 6042 Origin 2/04Changing Travel Direction1. Stop the vehicle by applying the service brakes.2. Grasp the travel select lever (3), pul

66Model 6042 Origin 2/04OperationShifting Gears1. Rotate the twist grip of the gear select lever to the next desired gear. The transmission has four f

Operation67Model 6042 Origin 2/04Steering ModesIMPORTANT! DO NOT change steering modes unless you are at a complete stop and all four tires are in the

Safety Practices5Model 6042 Origin 2/04Before beginning any maintenance or service, place an Accident Prevention Tag (1) on both the starter key switc

68Model 6042 Origin 2/04OperationFour Wheel Steer IndexingIf the vehicle does not drive “straight,” the steering could be “out of phase.” Perform the

Operation69Model 6042 Origin 2/042. Front Wheel SteeringThe front wheels will steer in the direction that the steering wheel is turned. The rear wheel

70Model 6042 Origin 2/04Operation3. Crab SteeringAll wheels will steer in the same direction that the steering wheel is turned. This steering mode all

Operation71Model 6042 Origin 2/044. Maximum Fork SweepLeveling FrameWhen placing a load while on a slope, use the frame sway control to keep the vehic

72Model 6042 Origin 2/04OperationQuick AttachThis vehicle is equipped with a quick attach system for easy attachment changing.Attachment RemovalBe sur

Operation73Model 6042 Origin 2/04Attachment ReconnectBe sure you are performing this procedure on level ground.1. Position the vehicle directly behind

74Model 6042 Origin 2/04OperationThe individual capacity charts are located inside a booklet (1) on the right side of the front dash. Capacity charts

Operation75Model 6042 Origin 2/04As the boom is extended, boom extend letters will appear on the left side of the boom visible to the operator. The le

76Model 6042 Origin 2/04OperationReading The Capacity ChartExample:1. The operator has placed the load onto the forks, fully retracted the boom, posit

Operation77Model 6042 Origin 2/04Standard Carriage Capacity ChartDCBAWITH SKY TRAK APPROVEDSTANDARD CARRIAGES ONLYASME B56.6 - 2002 PART lll4110344604

6Model 6042 Origin 2/04Safety PracticesThe following symbol definitions will help you understand all hazard related decals and load charts used on thi

78Model 6042 Origin 2/04OperationSide Tilt Carriage Capacity Chart1511182128.410°0°DCBAE0 ft812162024428122024283236400 ft844WITH SKY TRAK APPROVEDSID

Operation79Model 6042 Origin 2/04Swing Carriage Capacity ChartWITH SKY TRAK APPROVEDSWING CARRIAGES ONLY41103466042SAFETY INSTRUCTIONSUse only with ve

80Model 6042 Origin 2/04Operation12 Foot Truss Boom Capacity ChartWITH SKY TRAK APPROVED12 FT. TRUSS BOOM ONLY4110347604212'ALWAYS travel slowly

Operation81Model 6042 Origin 2/043 Foot Truss Boom w/Winch Capacity Chart152128.410°0°DCBAE0 ft812162024428122024283236400 ft844WITH SKY TRAK APPROVED

82Model 6042 Origin 2/04OperationThis Page Intentionally Left Blank

Operation83Model 6042 Origin 2/04All approved forks for this vehicle are marked with a maximum load capacity rating. This rating (1) is stamped on the

84Model 6042 Origin 2/04OperationTo pick a load, tilt the carriage forward so the forks hang freely on the fork shaft. Move the forks inward or outwar

Operation85Model 6042 Origin 2/04b. Width of the platform shall not be wider than the width of the vehicle, measured across the load bearing tires plu

86Model 6042 Origin 2/04Operation10. A body belt and lanyard is to have an attaching point for freedom of movement, and its length is to limit free fa

Operation87Model 6042 Origin 2/046. Be sure the vehicle is in a level position (side to side) before any operation is begun. Use the frame sway to lev

Safety Practices7Model 6042 Origin 2/04Hazard Symbols-OH2110OH2120OH2300OH2130OH2140OH2150OH2161Lead Acid Batteries Generate Explosive GasesRotating F

88Model 6042 Origin 2/04OperationElevating Personnel1. Make sure there are no overhead obstructions or electrical wires above the platform before lift

Operation89Model 6042 Origin 2/04Numerous attachments, marketed by JLG are available for this vehicle. The capacity charts attached to this vehicles d

90Model 6042 Origin 2/04Operation1. Bring the vehicle to a complete stop using the service brakes.2. Park the vehicle on level ground.3. Place the tra

Emergency Operations91Model 6042 Origin 2/04Emergency OperationsTowing a disabled vehicle should only be attempted after exhausting all other options.

92Model 6042 Origin 2/04Emergency Operations4. Position the towing vehicle in place. Attach any chains needed to secure the disabled vehicle.5. Attach

Emergency Operations93Model 6042 Origin 2/048. Clear the area of all unnecessary personnel.9. Carefully remove the wheel blocks from each of the four

94Model 6042 Origin 2/04Emergency OperationsThis section discusses emergency boom lowering procedures:Part I In case of loss of engine power or hydra

Emergency Operations95Model 6042 Origin 2/04Part ll - Hydraulic Line FailureIn case of hydraulic line failure, there are step-by-step procedures avail

96Model 6042 Origin 2/04Emergency OperationsableNORMAL STEPSEMERGENCY STEPSHYDRAULICLINETHATFAILEDFOLLOW THIS STEP IF PARTS ARE AVAILABLEFOLLOW THIS S

Emergency Operations97Model 6042 Origin 2/041. Clear the area of any unnecessary personnel.2. Place the travel select lever in (N) NEUTRAL, move the n