FOBO Ultra, Руководство пользователя, Страница: 13 / 53

13 | P a g e
the wrench to tighten the lock nut. The resultant friction force will make it
difficult to remove the sensor unit without loosening the lock nut. For rubber
valves, hold the valve stem with one hand and tighten the lock nut with the
wrench on another hand. This is to avoid the rubber valve from twisting
making it unable to tighten the lock nut.
WARNING: Do not apply too much force to tighten the lock-nut. You
may face difficulty to loosen the lock nut later on especially for rubber
valves that typically doesn’t stay firm on the tire rims.
NOTE: If your tire valve is too short, you shouldn’t use the lock nut as
this will block the sensors from being completely screwed on the tire
valve and causes air leak. Our sensors are designed to work on a tire
valve with a minimum of 5 thread counts.