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Operation and Safety Manual Original Instructions, keep this manual with the machine at all times. Model 3394RT 4394RT S/N-0200239053 to Present P/N - 3121641 ANSI March 2, 2016 ®...
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The purpose of this manual is to provide owners, users, operators, lessors, and lessees with the precautions and operating procedures essential for the safe and proper machine operation for its intended purpose. Due to continuous product improvements, JLG Industries, Inc. reserves the right to make specification changes without prior notification. Contact JLG Industries, Inc. for updated information.
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INDICATES INFORMATION OR A COMPANY POLICY THAT RELATES DIRECTLY INDICATES A POTENTIALITY HAZARDOUS SITUATION. IF NOT AVOIDED, OR INDIRECTLY TO THE SAFETY OF PERSONNEL OR PROTECTION OF PROP- COULD RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL WILL HAVE AN ERTY. ORANGE BACKGROUND. – JLG Lift – 3121641...
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Product Modifications JLG INDUSTRIES, INC. SENDS SAFETY RELATED BULLETINS TO THE OWNER Product Safety OF RECORD OF THIS MACHINE. CONTACT JLG INDUSTRIES, INC. TO ENSURE THAT THE CURRENT OWNER RECORDS ARE UPDATED AND ACCURATE. Contact: Product Safety and Reliability Department NOTICE JLG Industries, Inc.
JLG Industries, Inc. • Read, understand, and obey all applicable employer, local, and governmental regulations as they pertain to your utili- zation and application of the machine.
JLG. • Check the machine for modifications to original compo- • Ensure that the ground conditions are adequate to support nents.
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• When two or more persons are in the platform, the operator shall be responsible for all machine operations. • Always ensure that power tools are properly stowed and never left hanging by their cord from the platform work area. – JLG Lift – 3121641...
• Prior to operation, ensure all gates and rails are fastened and secured in their proper position. • JLG Industries, Inc. recommends that all persons in the plat- form wear a full body harness with a lanyard attached to an authorized lanyard anchorage point while operating this machine.
• Never exceed the maximum work load as specified on the Over 750 KV to 1000 KV 45 (14) platform. Keep all loads within the confines of the platform, unless authorized by JLG. NOTE: This requirement shall apply except where employer, local or govern- mental regulations are more stringent.
32-38 13.9-17.1 Near Gale/Moderate Gale Whole trees in motion. Effort needed to walk against the wind. 39-46 17.2-20.7 Fresh Gale Twigs broken from trees. Cars veer on road. 47-54 20.8-24.4 Strong Gale Light structure damage. – JLG Lift – 3121641...
• Keep hands and limbs out of the scissor arm assembly dur- ing operation and when elevated without safety prop engaged. • Watch for obstructions around machine and overhead when driving. Check clearances above, on sides, and bot- tom of platform when lifting or lowering platform. 3121641 – JLG Lift –...
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• Keep non-operating personnel at least 6 ft. (1.8m) away from machine during all operations. • Under all travel conditions, the operator must limit travel speed according to conditions of ground surface, conges- tion, visibility, slope, location of personnel, and other fac- tors. 1-10 – JLG Lift – 3121641...
• Ensure replacement parts or components are identical or damage to the machine or property. A maintenance program equivalent to original parts or components. 3121641 – JLG Lift – 1-11...
CLEAN WATER AND SEEK MEDICAL ATTENTION. • Charge batteries only in a well ventilated area. • Avoid overfilling the battery fluid level. Add distilled water to batteries only after the batteries are fully charged. 1-12 – JLG Lift – 3121641...
4. Use of approved fall protection device. the machine or the job site. 5. Enough knowledge of the mechanical operation of the machine to recognize a malfunction or potential malfunction. 3121641 – JLG Lift –...
NOTICE MAINTENANCE JLG INDUSTRIES, INC. RECOGNIZES A FACTORY-TRAINED SERVICE TECHNI- CIAN AS A PERSON WHO HAS SUCCESSFULLY COMPLETED THE JLG SERVICE The following table covers the periodic machine inspec- TRAINING SCHOOL FOR THE SPECIFIC JLG PRODUCT MODEL. tions and maintenance recommended by JLG Industries, Inc.
At intervals as specified in the Service and Mainte- Owner, Dealer, or User Qualified JLG Mechanic Service and Maintenance Man- nance nance Manual. NOTE: Inspection forms are available from JLG. Use the Service and Maintenance Manual to perform inspections. 3121641 – JLG Lift –...
SONNEL. DO NOT OPERATE THE MACHINE UNTIL IT IS DECLARED SAFE FOR legibility. Make sure none of the decals and placards OPERATION. are missing (refer to the Decal Installation in Section 3). Make sure all illegible decals and placards are cleaned or replaced. – JLG Lift – 3121641...
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SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION AND INSPECTION Figure 2-1. Walk Around Inspection Diagram 3121641 – JLG Lift –...
10. Leveling Jack Valve (If equipped) - No unsupported tioned. wires or hoses; no damaged or broken wires. NOTE: All wheel lugs are to be torqued at 170 ft lbs (240 Nm). Figure 2-2. Walk Around Inspection Points - Sheet 1 of 2 – JLG Lift – 3121641...
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16. Battery Cables/Routing Installation - See Note. Note. 17. Drive Header Valve (4WD only) (If applicable) - See Note. 18. Rotary Switch - See Note. Figure 2-3. Walk Around Inspection Points - Sheet 2 of 2 3121641 – JLG Lift –...
ControlS, Indicators and Operation, See Table 2-2 3394RT/4394RT 5° to full height 3° to full height and Table 2-3; (CE) d. Ensure that all machine functions are disabled when the Emergency Stop Button is activated. – JLG Lift – 3121641...
3. Set the DRIVE control switch into position and care- fully drive the machine up ascension ramp until left oscillating axle wheel is on top of block. 4. Verify the axle oscillates to maintain contact with the ground/ramp. (All four wheels on the ground). 3121641 – JLG Lift –...
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Right Side Wheel Test approximately 9 ft (2.7 m) on the 3394RT or 10 ft (3.1 m) on the 4394RT. 1. Place a 4 inch (10.16 cm) high block with ascension ramp in front of right wheel of the oscillating axle.
FOLLOWING INSTRUCTIONS MUST BE FOLLOWED. Changing from Gasoline to LP Gas: 1. Start the engine from the ground control station. 2. Open the hand valve on the LP Gas supply tank by turning counterclockwise. 3121641 – JLG Lift – 2-11...
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SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION AND INSPECTION NOTES: 2-12 – JLG Lift – 3121641...
SINCE THE MANUFACTURER HAS NO DIRECT CONTROL OVER MACHINE APPLI- The JLG Scissor Lift has a primary operator Control Station CATION AND OPERATION, CONFORMANCE WITH GOOD SAFETY PRACTICES IN in the platform. From this Control Station, the operator can...
Placards Stability Important points to remember during operation are pro- This machine, as originally manufactured by JLG and oper- vided at the control stations by DANGER, WARNING, CAU- ated within its rated capacity on a smooth, firm and level TION, IMPORTANT and INSTRUC TION placards. This...
The ground control emergency stop switch tor switch positioned to ground, fur- provides power to the key switch. With the power nishes operating power to the ground select switch in the center off position, power is shut 3121641 – JLG Lift –...
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14. Platform Overload Indicator (If equipped) - Illuminates when the plat- form becomes overloaded. 9. Hourmeter - The machine is equipped with an hour meter to indicate the number of hours the machine has been operated. – JLG Lift – 3121641...
The T-handle is connected, by a cable, to the manual descent valve on the lift cylinder. Pulling the manual descent handle opens the valve spool, lowering the platform. Manual Descent Control - T-Handle Location 3121641 – JLG Lift –...
On a machine equipped with a diesel pletely lowered. Use the following instructions to adjust engine this switch serves as a glow the level of the machine. plug switch. 3121641 – JLG Lift –...
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The speed on all a. Control Handle - The control handle controls five selected functions, (except leveling jacks), is pro- functions: drive, lift, power deck, leveling jacks portionally controlled by the distance of travel of 3-10 – JLG Lift – 3121641...
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Low/High switch and the dis- tion controls in the event of an emergency. With the 3121641 – JLG Lift – 3-11...
For high speed (Rabbit), Mid Speed (White Line) and FORM IS RAISED ABOVE THE STOWED POSITION. Low Speed (Turtle). All three speeds will work with the drive function. The high speed select will not operate the lift func- tion. 3-14 – JLG Lift – 3121641...
IF ENGINE FAILS TO START PROMPTLY, DO NOT CRANK FOR AN EXTENDED PERIOD. SHOULD ENGINE FAIL TO START ONCE AGAIN, ALLOW STARTER TO “COOL OFF” FOR 2 TO 3 MINUTES. IF ENGINE FAILS TO START AFTER SEVERAL ATTEMPTS, REFER TO ENGINE MAINTENANCE MANUAL. 3121641 – JLG Lift – 3-15...
The load should be runs smoothly on gasoline. placed near the center of the platform when possible. 3. Close the hand valve on the LPG supply tank by turn- ing clockwise. 3-16 – JLG Lift – 3121641...
1. Position the emergency stop switch at the platform control station to the on position. the wheels are centered. 2. Press the drive switch and move the control handle backward (reverse) and hold for the duration of travel. 3121641 – JLG Lift – 3-17...
If there is a proximity switch time is allowed for all leveling adjustments to be com- failure or elevation sensor failure, the leveling jacks func- pleted. tion is locked out. 3121641 – JLG Lift – 3-19...
NOTE: You can not adjust the level of the machine with the EASI- switch is not activated within 5 seconds after the trig- CLADDER™ option installed. ger switch is pressed, power is removed from the cir- 3-20 – JLG Lift – 3121641...
NOTE: There is a 5 second time out after the joystick is released. If one extension is selected and released the opposite deck extension cannot be selected for 5 seconds. 3121641 – JLG Lift – 3-21...
BE SURE AND RETRACT ANY POWER DECK BEFORE LOWERING MACHINE. the auxiliary power. Generator When the generator switch is activated the engine RPM will speed up. When the joystick is triggered the generator will shut off. 3-22 – JLG Lift – 3121641...
NOTE: If lifting becomes necessary from the lifting lugs, JLG 6. Turn the power selector switch to off and remove the Industries Inc. recommends the use of a proper spreader key to disable the machine and prevent unauthorized bar to avoid damage to the machine.
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SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION WHEELBASE MODEL(S) (in) (cm) (in) (cm) (in) (cm) 3394/4394RT Figure 3-6. Lifting and Tie Down Chart (Sheet 1 of 2) 3-24 – JLG Lift – 3121641...
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SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION Figure 3-7. Lifting and Tie Down Chart (Sheet 2 of 2) 3121641 – JLG Lift – 3-25...
The following procedures are to be used ONLY for emergency movement to a suitable maintenance area. 1. Chock wheels securely. 2. Disengage drive hubs by reversing disconnect caps. 3. Connect suitable equipment, remove chocks, and move machine. 3121641 – JLG Lift –...
Place the power select switch in the ground posi- tion and operate the lift switch to lift up or down. Manual Descent Control - T-Handle Location – JLG Lift – 3121641...
It is imperative that JLG Industries, Inc. be notified immedi- hours of such an occurrence may void any warranty con- ately of any incident involving a JLG product. Even if no sideration on that particular machine. injury or property damage is evident, the Product Safety...
The vibration total value to which the hand-arm system is Illustrated Parts Manual ............3121643 subjected does not exceed 2,5 m/s2. The highest root mean square value of weighted acceleration to which the whole body is subjected does not exceed 0,5 m/s2. 3121641 – JLG Lift –...
3.5 mph (5.6 kph) 3.5 mph (5.6 kph) Electrical System Voltage 12 Volt LIft Up Speed 32 - 39 seconds 40 - 45 seconds (Stowed to Full Height) Inside Turning Radius 8 ft 10.5 in (2.71 m) – JLG Lift – 3121641...
15,240 lbs (6,913 kg) Capacities w/Two Extensions 13,440 lb. (6,096 kg) 15,780 lbs (7,158 kg) Table 5-3. Capacities Note: Certain options or country standards increase weight. Fuel Tank 31.5 gal (119.2 L) Hydraulic Tank 32.3 gal (122.2 L) 3121641 – JLG Lift –...
152. sel - (T4F - API CJ-4), API CJ-4/CG-4 class, ACEA E3-90/E5-02. NOTE: When temperatures remain below 20° F (-7° C), JLG Indus- tries recommends the use of Mobil DTE13. NOTE: Aside from JLG recommendations, it is not advisable to...
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SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE Figure 5-1. Engine Oil/Diesel Fuel - Operating Temperature Specifications - Deutz - Sheet 1 of 2 – JLG Lift – 3121641...
-20°F (-29°C) FLUIDS, A FULL Y CHARGED BA TTER Y AND THE AID OF A COMPLETE JLG SPECIFIED COLD WEA THER P ACKAGE (IE. ENGINE BLOCK HEA TER, BA TTER Y W ARMER AND HYDRAULIC OIL T ANK HEA TER) -30°F (-34°C)
To store the safety prop, raise the platform, push the safety prop handle so that the prop can be restored back to its stowed position. TO AVOID PERSONAL INJURY, USE SAFETY PROP FOR ALL MAINTENANCE REQUIRING PLATFORM TO BE ELEVATED. 5-12 – JLG Lift – 3121641...
• Interval - Every Year or 600 hours of operation • Interval - 3 Months or 150 hours of operation • Comments - Check level daily/Change in accordance • Comments - Check level daily/Change in accordance with engine manual. with engine manual. 5-16 – JLG Lift – 3121641...
Pre-Filter with pressure sensor next to fuel tank • Interval - Every Year or 600 hours of operation Fuel Filter (Gasoline) - GM Engine • Lube Point(s) - Replaceable Element • Interval - Every 6 months or 300 hours of operation 3121641 – JLG Lift – 5-17...
5. Disconnect the electrical connection to the LPG fuel 2. Start the engine and bring to operating temperature. temperature sensor in the auxiliary fuel port of the EPR. 3121641 – JLG Lift – 5-19...
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8. Open the fuel tank manual valve. 9. Start the engine and verify all connections are secure. 10. Dispose of any drained oil per local regulations in a safe and proper fashion. 5-20 – JLG Lift – 3121641...
BE SURE TO REINSTALL THE FILTER MAGNET INTO THE HOUSING BEFORE 6. Seal 12. Retaining Bolt INSTALLING NEW SEAL. Figure 5-6. Filter Lock Assembly 1. Install the mounting plate to lock off O-ring seal. 3121641 – JLG Lift – 5-21...
Refer to Section 5.8, Propane Fuel System Leak Test. 3. Turn the ignition switch OFF. RESIDUAL VAPOR PRESSURE WILL BE PRESENT IN THE FUEL SYSTEM. ENSURE THE WORK AREA IS WELL VENTILATED BEFORE DISCONNECTING ANY FUEL LINE. 5-22 – JLG Lift – 3121641...
JLG Parts Manual for the part number of the approved width, tire pressure, and load capacity. Size changes such tires for a particular machine and model. If not using a JLG as rim width, center piece location, larger or smaller diam- approved replacement tire, we recommend that replacement eter, etc., without written factory recommendations, may...
Following the recommended sequence, tighten the nuts per wheel torque chart. Wheel nuts should be torqued after the first 50 hours of operation and after each wheel removal. Check torque every 3 months or 150 hours of operation. 3121641 – JLG Lift – 5-25...
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