ZTR-TB-ENG-180727 Michelin X Tweel ZTR Airless Radial Tire
Product Information: Zero Turn Mowers
The zero turn mower is a type of lawn mower that has a turning
radius of zero. It is designed to be highly maneuverable, allowing
you to mow around obstacles and in tight spaces with ease. The
mower is powered by an engine and has two levers that control the
speed and direction of the mower.
Technical Bulletin: ZTR-TB-ENG-180727
This technical bulletin provides important information on the
proper installation instructions for zero turn mowers. It includes
a star pattern sequence for tightening lug bolts on both 4-bolt and
5-bolt hubs. Proper installation is crucial to ensure safe
operation of the mower.
Action Required: MICHELIN TWEEL Tire and Wheel Assembly
The MICHELIN TWEEL tire and wheel assembly must be mounted to
the machine torque specification to prevent incorrect mounting that
can lead to separation of the TWEEL from the vehicle, loss of
control, serious injury or death.
Good Lug Nut and Good Stud
It is important to ensure that the lug nuts and studs on your
zero turn mower are in good condition. This will help to prevent
any issues with the wheels coming loose while in use.
Product Usage Instructions:
- Before using the zero turn mower, ensure that it is properly
assembled according to the manufacturer’s instructions. - Check that all lug nuts and studs are in good condition and
tightened to the manufacturer’s torque specifications using the
star pattern sequence for tightening. - Ensure that the MICHELIN TWEEL tire and wheel assembly is
mounted correctly to the machine torque specification to prevent
any issues with separation or loss of control. - Start the engine and engage the blades only when you are seated
in the operator’s seat and have both hands on the levers. - When mowing, use the levers to control the speed and direction
of the mower. Always be aware of your surroundings and any
obstacles that may be in your path. - When finished mowing, turn off the engine and allow it to cool
before storing the mower in a safe and secure location.
Technical Bulletin
ZTR-TB-ENG-180727
MICHELIN® X® TWEEL® ZTR Airless Radial Tire
Proper installation Instructions for zero turn mowers
Star Pattern Sequence for Tightening Lug Bolts
4-Bolt Hub
5-Bolt Hub
ACTION REQUIRED
Inspect and verify that the MICHELIN® X® TWEEL® tire and wheel assembly is mounted properly.
MICHELIN TWEEL tire and wheel assembly to machine torque specification
· Ensure lug nuts with a 60° conical seat are used, and free from damage as pictured.
· Tighten lug nuts to a snug “finger tight” condition (no wobble evident between the MICHELIN TWEEL tire and wheel assembly and the mounting surface).
· Then torque each lug nut to the machine manufacturer’s specifications in a `star pattern’ sequence (see above). DO NOT EXCEED 75 lb-ft!
· Lug nuts should be re-torqued after first 10 hours of use, and during every maintenance interval.
Copyright © 2018 Michelin North America, Inc. All rights reserved.
Incorrect mounting can lead to separation of the TWEEL from the vehicle,
loss of control, serious injury or death
Good Lug Nut
Good Stud
Worn Lug Nut Do Not Use
Damaged Stud Do Not Use
