3A
Air Locking Hub Inspection
1) Start engine and select transfer to 2H position.
2) Connect vacuum pump gauge (special tool) to the spindle hose (2) which is disconnected from upper side pipe as shown. Apply vacuum and check operating sound from air locking hub (1).
If there is not operating sound, replace air locking hub assembly.
Vacuum specification
More than 40 kPa (0.40 kg/cm², 5.70 Psi)
Special Tool
(A) : 09917–47011
3) Connect hose, then start engine and select transfer to 4H or 4L position.
4) Connect vacuum pump gauge to the spindle hose (2) disconnected from lower side pipe.
Apply vacuum and check operating sound from air locking hub (1).
If there is no operating sound, replace air locking hub assembly.
Vacuum specification
More than 40 kPa (0.40 kg/cm², 5.70 psi)
Special Tool
(A) : 09917–47011