JLGScissor liftsDiesel

JLG 4394RT

Diesel rough-terrain scissor lift · 15 m

Rough-terrain diesel scissor lift with 15 m working height and 680 kg capacity.

Also known as: RT4394

Working height: 15.11 m
Platform size: 1.79 × 3.86 m (extensions retracted)
Overall width: 2.31 m
Platform capacity: 568 kg (dual extension) / 682 kg (single extension)
Machine weight: 6,727 kg
Power: Diesel, Kubota 18.5 kW

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Official JLG dealer in Portugal · sales, parts and technical service

JLG 4394RT: what it is for

The JLG 4394RT is the 15 m diesel rough-terrain scissor lift: 15.11 m working height and a 1.79 × 3.86 m platform with two 1.14 m manual extensions.

JLG now builds this model as the RT4394; the specifications on this page are those of the current RT4394.

It carries up to 568 kg with the dual extension (682 kg with a single extension), the same indoors and outdoors, and drives at full height. 4WD with oscillating axle, 45% gradeability and an HVO-ready 18.5 kW Kubota engine: built for site work with several people and materials on the platform.

Applications

Building construction and refurbishment
Steel structures and roofs
Panel and glazing installation
Industry and outdoor maintenance
Outdoor events and installations

JLG 4394RT specifications

Values from the manufacturer's European (CE) spec sheet. They can vary with the configuration and options.

Datasheet (PDF)

Height and reach

Working height: 15.11 m
Platform height: 13.11 m
Platform height (lowered): 1.84 m
Maximum drive height: Full height
Lift/lower time (no load): 45 / 47 s

Capacity

Platform capacity (indoor): 568 kg (dual-extension deck; 682 kg with single-extension deck)
Platform capacity (outdoor): 568 kg (dual-extension deck; 682 kg with single-extension deck)
Deck extension capacity: 230 kg

Platform

Platform size (internal): 1.79 × 3.86 m (extensions retracted)
Deck extension length: 1.14 m front + 1.14 m rear (manual)
Guardrail height: 1.10 m

Dimensions and transport

Stowed length: 4.88 m
Overall width: 2.31 m (12 x 16.5 non-marking tyres; 2.35 m with 33/1550-16.5; 2.37 m with IN315/55D20)
Stowed height: 3 m
Wheelbase: 2.97 m
Ground clearance: 0.35 m (centre of machine)

Weight and ground pressure

Machine weight (CE): 6,727 kg
Max. ground bearing pressure: 3.94 kg/cm² (on wheels)
Max. ground bearing pressure (on jacks): 4.85 kg/cm²

Engine and power

Engine: Kubota D1305-E4B diesel, 18.5 kW (25 hp), HVO ready
Drive system: 2-speed piston type hydraulic motors
Fuel tank: 83 l
Hydraulic system (capacity): 122 l
Hydraulic tank: 100 l

Travel

Drive speed (4WD, stowed): 5.6 km/h
Drive speed (elevated): 0.8 km/h
Gradeability (4WD): 45%
Turning radius (inside): 2.70 m
Turning radius (curb to curb): 5.93 m
Max. tilt rating (side to side): 3°
Max. tilt rating (fore and aft): 5°
Drive / steer: Hydrostatic 4WD with anti-stall; oscillating front axle
Tyres: 12 x 16.5, foam-filled

Use

Use: Indoor and outdoor (same capacity)

JLG 4394RT equipment

Standard

1.79 m x 3.86 m dual deck extension steel platform (extensions retracted)
1.14 m manual front deck extension
1.14 m manual rear deck extension
Fold-down handrails
Dual side entry with half swing gates
Lanyard attach points
Proportional drive control with thumb steer
Proportional lift/lower speed control
Joystick enable for lift and drive
Moveable and removable platform console box
Load sensing system
Kubota D1305-E4B (18.5 kW) diesel engine
HVO fuel ready
Programmable "personality" settings
On-board self-diagnostic testing
Engine distress warning / shut-down system
Hydrostatic drive with anti-stall function
Two speed drive selection
Four wheel drive
Tilt alarm and indicator light
Guardless system with audio-visual alarm
12 x 16.5 foam-filled loader lug tread tyres
12 x 16.5 foam-filled tyres
Oscillating front axle
Hydraulic levelling jacks
Lifting / tie-down lugs
Hour meter
Ground control selector switch with key lock
Lubrication-free scissor arm bushings
Scissor armstack safety prop
Horn
All-motion alarm
AC power cable to platform
Flashing amber beacon
ClearSky Smart Fleet connectivity module (subscription through Online Express)

Optional

1.79 m x 3.8 m single deck extension steel platform (extension retracted)
33/1550 x 16.5 foam-filled tyres
315/55 D20 foam-filled tyres
12 x 16.5 non-marking foam-filled tyres
On-board 4000 W / 50 Hz belt-driven generator
Descent alarm
13 mm air line to platform
Platform work lights
Plugs & sockets
Pipe racks (rail mounted)
Large material rack
SkySense Level 3
Cold weather package

Compare the JLG 4394RT

The main specifications of the JLG 4394RT next to similar models.

Specification	JLG 4394RT	JLG 3246ES
Working height	15.11 m	11.75 m
Platform size	1.79 × 3.86 m (extensions retracted)	0.95 × 2.12 m
Overall width	2.31 m	1.17 m
Platform capacity	568 kg (dual extension) / 682 kg (single extension)	320 kg indoor (2 persons) / 230 kg outdoor (1 person)
Machine weight	6,727 kg	2,550 kg
Power	Diesel, Kubota 18.5 kW	Electric, 24 V

Transport and use

Transport: 6,727 kg and 4.88 × 2.31 × 3.00 m stowed: plant lorry.

Where it works: site terrain and outdoors (4WD, 45% gradeability), with the same capacity indoors and outdoors. Maximum ground pressure 3.94 kg/cm² on the wheels.

Operator: The operator must be properly trained to use mobile elevating work platforms (MEWPs): the employer is required to ensure this (Decree-Law 50/2005). The IPAF/PAL card is the most widely recognised training.

Inspections: Like any work equipment that lifts people, it needs mandatory periodic inspections (DL 50/2005), in addition to the manufacturer's preventive maintenance.

Mandatory periodic inspections (DL 50/2005)

JLG 4394RT price

The price of a new JLG 4394RT is on request: it depends on the configuration (options, tyres, power, accessories), lead time and delivery location. Tell us what the machine is for and we will send a quote.

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JLG 4394RT fault codes

Search the code the machine shows to see what it means.

The flash code is indicated on the System Fault light of the platform control box and is also displayed on the handheld analyzer together with the help message. Some help messages have no flash code and are only hints.

124 codes

Code	Meaning
	FUNCTION SELECTED BUT TRIGGER SWITCH OPEN
	RUNNING AT CUTBACK – ABOVE ELEVATION
	ACCESSORY FAULT
	FRONT LEFT LEVELING JACK AT END OF STROKE
	FRONT RIGHT LEVELING JACK AT END OF STROKE
	REAR LEFT LEVELING JACK AT END OF STROKE
	REAR RIGHT LEVELING JACK AT END OF STROKE
	LEVELING JACK SET PREVENTED – ECM LOST
	GENERATOR PREVENTED – ECM LOST
	DRIVE PREVENTED – ECM LOST
	ELEVATION SENSOR DISAGREEMENT
2/12-1	KEYSWITCH FAULTY – PLATFORM & GROUND ACTIVE TOGETHER
2/22-2	TRIGGER SWITCH WIRING SHORTED HIGH IN PLATFORM CABLE
2/22-2	TRIGGER SWITCH WIRING SHORTED LOW IN PLATFORM CABLE
2/22-2	FUNCTION LOCKED OUT – DRIVE SELECT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – LIFT SELECT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – FRONT DECK SELECT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – REAR DECK SELECT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – START PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – STEER LEFT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – STEER RIGHT PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – AUX POWER SWITCH PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – GENERATOR SWITCH PERMANENTLY CLOSED
2/22-2	FUNCTION LOCKED OUT – AUTOLEVEL SWITCH PERMANENTLY CLOSED
2/22-2	TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL
2/22-2	FUNCTION LOCKED OUT – JOYSTICK NOT CENTERED
2/22-2	FUNCTION LOCKED OUT – TRIGGER SWITCH PERMANENTLY CLOSED
2/22-2	JOYSTICK FAULTY – STEER SWITCHES ACTIVE TOGETHER
2/22-2	FUNCTION LOCKED OUT – HORN SWITCH PERMANENTLY CLOSED
2/22-2	JOYSTICK CALIBRATION FAULTY
2/32-3	FUNCTION LOCKED OUT – GROUND LIFT UP PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND LIFT DOWN PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND FRONT DECK EXT PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND FRONT DECK RET PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND REAR DECK EXT PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND REAR DECK RET PERMANENTLY CLOSED
2/32-3	GROUND LIFT UP/DOWN ACTIVE TOGETHER
2/32-3	GROUND FRONT DECK EXTEND/RETRACT ACTIVE TOGETHER
2/32-3	GROUND REAR DECK EXTEND/RETRACT ACTIVE TOGETHER
2/32-3	NO SIGNAL FROM TILT SENSOR X AXIS – CHECK WIRING
2/32-3	NO SIGNAL FROM TILT SENSOR Y AXIS – CHECK WIRING
2/32-3	LEVEL SENSOR FAILURE
2/32-3	FUNCTION LOCKED OUT – GROUND AUX SWITCH PERMANENTLY CLOSED
2/32-3	FUNCTION LOCKED OUT – GROUND START SWITCH PERMANENTLY CLOSED
2/52-5	ELEV ANGLE SENSOR FAULTY – NOT MOUNTED OR VOLTAGE OUT OF RANGE
2/52-5	ELEV ANGLE SENSOR HAS NOT BEEN CALIBRATED
2/52-5	ELEVATION PROX SWITCH PERMANENTLY CLOSED
2/52-5	ELEVATION PROX SWITCH PERMANENTLY OPEN
2/52-5	FRONT LEFT LEVELING JACK PRESSURE TRANSDUCER FAILURE
2/52-5	FRONT RIGHT LEVELING JACK PRESSURE TRANSDUCER FAILURE
2/52-5	REAR LEFT LEVELING JACK PRESSURE TRANSDUCER FAILURE
2/52-5	REAR RIGHT LEVELING JACK PRESSURE TRANSDUCER FAILURE
2/52-5	PLATFORM OVERLOAD
2/52-5	FRONT LEFT LEVELING JACK STOW SWITCH PERMANENTLY CLOSED
2/52-5	FRONT RIGHT LEVELING JACK STOW SWITCH PERMANENTLY CLOSED
2/52-5	REAR LEFT LEVELING JACK STOW SWITCH PERMANENTLY CLOSED
2/52-5	REAR RIGHT LEVELING JACK STOW SWITCH PERMANENTLY CLOSED
2/52-5	ELEV ANGLE SENSOR NOT DETECTING CHANGE
2/62-6	FRONT LEFT LEVELING JACK OPEN CIRCUIT
2/62-6	FRONT LEFT LEVELING JACK SHORT TO GROUND
2/62-6	FRONT LEFT LEVELING JACK SHORT TO BATTERY
2/62-6	FRONT RIGHT LEVELING JACK OPEN CIRCUIT
2/62-6	FRONT RIGHT LEVELING JACK SHORT TO GROUND
2/62-6	FRONT RIGHT LEVELING JACK SHORT TO BATTERY
2/62-6	REAR LEFT LEVELING JACK OPEN CIRCUIT
2/62-6	REAR LEFT LEVELING JACK SHORT TO GROUND
2/62-6	REAR LEFT LEVELING JACK SHORT TO BATTERY
2/62-6	REAR RIGHT LEVELING JACK OPEN CIRCUIT
2/62-6	REAR RIGHT LEVELING JACK SHORT TO GROUND
2/62-6	REAR RIGHT LEVELING JACK SHORT TO BATTERY
2/62-6	LEVELING JACK EXTEND VALVE OPEN CIRCUIT
2/62-6	LEVELING JACK EXTEND VALVE SHORT TO GROUND
2/62-6	LEVELING JACK EXTEND VALVE SHORT TO BATTERY
2/62-6	LEVELING JACK RETRACT VALVE OPEN CIRCUIT
2/62-6	LEVELING JACK RETRACT VALVE SHORT TO GROUND
2/62-6	LEVELING JACK RETRACT VALVE SHORT TO BATTERY
2/62-6	FRONT DECK EXTEND VALVE OPEN CIRCUIT
2/62-6	FRONT DECK EXTEND VALVE SHORT TO GROUND
2/62-6	FRONT DECK EXTEND VALVE SHORT TO BATTERY
2/62-6	FRONT DECK RETRACT VALVE OPEN CIRCUIT
2/62-6	FRONT DECK RETRACT VALVE SHORT TO GROUND
2/62-6	FRONT DECK RETRACT VALVE SHORT TO BATTERY
2/62-6	REAR DECK EXTEND VALVE OPEN CIRCUIT
2/62-6	REAR DECK EXTEND VALVE SHORT TO GROUND
2/62-6	REAR DECK EXTEND VALVE SHORT TO BATTERY
2/62-6	REAR DECK RETRACT VALVE OPEN CIRCUIT
2/62-6	REAR DECK RETRACT VALVE SHORT TO GROUND
2/62-6	REAR DECK RETRACT VALVE SHORT TO BATTERY
4/34-3	FUEL SENSOR SHORT TO BATTERY
4/34-3	FUEL SENSOR SHORT TO GROUND
4/34-3	FUEL SENSOR DISCONNECTED
4/34-3	OIL PRESSURE SHORT TO BATTERY
4/34-3	OIL PRESSURE SHORT TO GROUND
4/34-3	COOLANT TEMPERATURE SHORT TO GROUND
4/34-3	ENGINE TEMPERATURE HIGH
4/34-3	AIR FILTER BYPASSED
4/34-3	NO ALTERNATOR OUTPUT
4/34-3	OIL PRESSURE LOW
4/34-3	ENGINE SHUTDOWN COMMANDED – CHECK ENGINE SENSORS
4/34-3	WRONG ENGINE SELECTED
4/34-3	DEUTZ ECM FAULT CODE
4/44-4	BATTERY LOW
4/44-4	BATTERY TOO HIGH – SYSTEM SHUTDOWN
4/44-4	BATTERY TOO LOW – SYSTEM SHUTDOWN
4/44-4	LSS BATTERY VOLTAGE HIGH
4/44-4	LSS BATTERY VOLTAGE LOW
5/55-5	SPEED SENSOR READING INVALID SPEED
5/55-5	SPEED INPUT LOST
6/66-6	CAN BUS FAILURE
6/66-6	LSS NOT SENDING CAN MESSAGES
6/66-6	ENGINE CONTROLLER CAN COMMUNICATION LOST
6/66-6	TWO PLATFORM MODULES DETECTED
8/18-1	LSS CELL #1 ERROR
8/28-2	LSS CELL #2 ERROR
8/38-3	LSS CELL #3 ERROR
8/48-4	LSS CELL #4 ERROR
9/19-1	LSS WATCHDOG RESET
9/29-2	LSS EEPROM ERROR
9/39-3	LSS HAS NOT BEEN CALIBRATED
9/99-9	LSS NEEDS TO BE RE-CALIBRATED
9/99-9	LSS INTERNAL ERROR – PIN EXCITATION
9/99-9	LSS INTERNAL ERROR – DRIVER FAULT
9/99-9	LSS INTERNAL ERROR – DRDY MISSING FROM A/D
9/99-9	EEPROM FAILURE – CHECK ALL SETTINGS

Source: 3394RT, 4394RT Service and Maintenance Manual (S/N 0200239053 to present), Table 5-2 – Fault Code Listing – Software P1.X, no. 3121642 (2018-01-23). Codes and their meaning can vary with the serial number: always check your machine's manual. PDF JLG 4394RT manuals

Code keeps coming back, or the machine will not work?

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JLG 4394RT parts, manuals and service

JLG 4394RT manuals

Operation, service and parts manuals as PDF, by serial number.

JLG 4394RT parts

Genuine parts: send the part number or a photo of the part and the ID plate.

Technical service

Fault diagnosis, repairs, maintenance and periodic inspections.

JLG 4394RT FAQ

How high does the JLG 4394RT go?

15.11 m working height, with the platform at 13.11 m (current RT4394).

What is the capacity of the JLG 4394RT?

568 kg with the dual-extension deck or 682 kg with a single extension, indoors and outdoors. Each extension takes 230 kg.

How much does the JLG 4394RT weigh?

6,727 kg in the European (CE) version of the RT4394.

Does the JLG 4394RT work on rough ground?

Yes: it has 4WD, an oscillating front axle, 45% gradeability and can drive at full height.

How much does the JLG 4394RT cost?

The price is on request: it depends on the configuration (options, tyres, accessories) and delivery. Ask Trapézio de Prismas, the official JLG dealer in Portugal, for a quote.

Where can I find the JLG 4394RT manual?

The JLG 4394RT operation, service and parts manuals are in our JLG manuals library, by serial number. You can also request genuine parts from the same page.