Removal and Installation

CAUTION:

Because vacuum hose contains a check valve, it must be installed in the correct direction. Refer to the stamp or label to confirm correct installation. The brake booster will not operate normally if hose is installed in the wrong direction.
Insert vacuum hose for at least 24 mm (0.94 in).
Do not use lubricating oil during assembly.

Fig 1: Identifying Check Valve
Courtesy of NISSAN MOTOR CO., U.S.A.