Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

Electric Low Fuel Shutoff

Models Affected: JLG Boom Lifts after 2011

JLG boom lifts manufactured after 2011 have an “electric low fuel shutoff” feature, which shuts the machine down between 1/8 and 1/4 of a tank. This prevents the machine from running out of fuel completely and potentially damaging the engine as well as the fuel system. When the machine shuts off, it will not flash a code, but the analyzer will display “low fuel level engine shutdown." No need to reset: Simply add fuel, and the machine will restart.

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

Enabling Jib Side Swing for Electric Booms

Models Affected: JLG Boom Lifts with Jibs

• Enter the code “33271” from the “Access Level 2” menu.
• Press Enter for the “Access Level 1” menu.
• Press the “Right Arrow” key to access the “Machine Set Up” menu.
• Press Enter on “Machine Set Up.”
• Press the “Right Arrow” key until you find “jib.” Press Enter.
• Press the “UP” arrow key to change the selection to display “2=side swing.”
• Shut the machine down so it accepts the change.

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

How to Activate the AWP Drive Orientation System

Models Affected: JLG Boom Lifts

On newer aerial work platforms, there is an orientation switch installed on the platform control box. The drive orientation system is activated if the machine is swung to the side past the rear tires.

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

JLG 400S and 460SJ Boom Lifts Fuel Sensors

Models Affected: JLG 400S and 460SJ Boom Lifts

Resolution: It is recommended that customers who have received machines with serial numbers included on this list should inspect the gauge on the platform and the analyzer to ensure that they are reading accurately. If found to be inaccurate, please replace per the Warranty guidelines below.

Warranty: JLG recommends the installation of this replacement at your next maintenance interval. JLG will reimburse your account for the cost of the part, as well as one (1.0) hour of labor for each unit completed. No travel will be paid in accordance with this Service Letter. This bulletin will expire 12 months after the date of distribution. Please reference SL 14-06 on your warranty claim.

This part can only be ordered through a local servicing entity of JLG products. The servicing entity must have a JLG account and be capable of purchasing parts and filing warranty claims. When ordering a part, the servicing entity will be charged (debited) for the cost of each part.

JLG Part Number: 1001148607

Refer to our latest tech bulletin (19 KB PDF) for more information and procedures. SL 14-06 Distribution

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

Overcrank Protection and JSP Cover Torque

Models Affected: JLG G6-42A, G9-43A, G10-43A, G10-55A, G12-55A and SkyTrak 6036, 6042, 8042, 10042, 10054 Telehandlers with Tier 4i (ULS) Cummins Engines, (Models QSB3.3 and 4.5)

With the incorporation of Tier 4i (ULS) engines into the telehandler models listed above, Cummins has added an overcrank protection feature to prevent overheating of the starter solenoid due to intentional continuous cranking. The starter manufacturer dictates the solenoid may be engaged for a maximum of 30 seconds at a time. An attempt to exceed the 30-second interval will result in the interruption of current through the starter lockout relay until the solenoid has an opportunity to cool. The cooldown period takes approximately 120 seconds and will allow the relay to reset.

The starter also has a feature that prevents accidental crossing of the solenoid terminals while servicing, called a JSP (Jump Start Protection) cover. If the nut securing this cover is torqued beyond the recommended value, an interruption of current through the starter solenoid may result and the engine will not crank. In the event current through the starter solenoid is lost, recheck the torque of the cover nut prior to replacing the starter.

JLG Starter Part Numbers 70024277 and 70024311

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

Stowing the Ultra Boom Jib

Models Affected: JLG 1500SJ

The JLG Ultra Boom model 1500SJ is equipped with a telescopic jib boom that must be in the stowed position prior to transport.

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

TIB 15-41 Engine Cold Start Enhancement

Models Affected: JLG Model 340AJ with Dual Fuel GM Engine

JLG has received reports of hard starting of the JLG® Model 340AJ equipped with GM .97L dual fuel engine while operating on gasoline and in cold weather applications.

The engine supplier has developed updated ECM software for the GM .97L dual fuel engine. If your machine experiences difficulty starting in cold weather, please contact the JLG District Service Manager (DSM) or Service Provider in your region to schedule the software installation.

When equipped with the recommended engine oil (5W-30) and the ECM software update, the engine should start in temperatures as low as +15oF. For use in temperatures below 15oF, JLG offers optional Cold Weather Start* and an Artic packages**.

*The Cold Weather Start package includes a battery blanket, a hydraulic tank heater and an engine block heater.

**The Arctic package includes the same items in the Cold Weather Start package plus arctic hoses (drive and steer only) and a main boom cable, extreme cold weather engine oil, fuel conditioner and an oversized foot switch.

Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.

Do Not Perform Maintenance Unless:

1. You are trained and qualified to perform maintenance on this machine.
2. You read, understand and obey:
   1. manufacturer’s instructions and safety rules
   2. employer’s safety rules and worksite regulations applicable governmental regulations
3. You have the appropriate tools, lifting equipment and a suitable workshop.

Toucan Brake Release Valve

Models Affected: JLG Vertical Mast Toucan Machines

If you have a Toucan machine that will not drive even though the pump runs, check the brake release valve on the back of the machine. This valve, if bumped accidentally, can cause a no-drive situation, but adjusting the valve can correct the problem.

This short video, taken from the Toucan operator safety video, explains how to properly engage and disengage the brake release valve.