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.

Proper Method for Checking Transmission Fluid

Models Affected: JLG Telehandlers equipped with ZF TSC-model transmissions

JLG® telehandler models equipped with the ZF TSC transmission are also equipped with a thermal bypass valve in the cooling circuit to facilitate faster warm-up of the transmission. When the transmission cooling circuit is below operating temperature, this valve may be fully or partially closed, affecting the amount of fluid in the transmission. It is necessary to check the fluid level with the valve fully open to ensure the proper amount of fluid is present in the system. Improper fluid levels can contribute to premature failure of the transmission.

JLG Part Number: 7025995

Refer to our latest tech bulletin for more information and procedures. TIB 17-05 JLG Telehandlers equipped with ZF TSC-model transmissions