Patlite WDT-4LR-Z2 Instruction Manual page 34

②
The following are the steps for attaching the WDT to the LR series signal tower.
Attach or detach units in the prescribed order, beginning with 1.
Detach and attach units one at a time.
③
The following are the steps for detaching the WDT from the LR series signal tower.
Detach units in the prescribed order, from 1 to 5.
Detach and attach units one at a time.
Wireless Data Acquisition System Instruction Manual
34