TASK DEFINITION: Translate the given Spanish text to English
PROBLEM: The two phases are applied sequentially.

SOLUTION: Las dos fases se aplican secuencialmente.

PROBLEM: The device is modular and stackable.

SOLUTION: El dispositivo es ensamblable y apilable.

PROBLEM: The sleeve (2) is then pulled upwardly.

SOLUTION:
La funda (2) se tira entonces hacia arriba.