A/T - Air Pressure Testing Clutch Operation

TRANSMISSION: MB-1 Series

BULLETIN: # 051

SUBJECT: Air Testing

APPLICATION: Renault

DATE: May 1991

MB-1 & MB-3

Air Pressure Checks

Air Pressure Test

Air pressure testing is used as a method of confirming proper clutch and brake operation after a repair. The tests involve substituting air pressure for fluid pressure. By applying air pressure to the appropriate case passages movement of the piston can be felt and a soft thud may be heard as the clutch or brake is applied, check for excessive air leakage.

CAUTION
Use dry, filtered compressed air only when performing air pressure tests. Pressure of 207 to 689 kPa (30 to 100 psi) is required to perform the tests.




Applying air to passage A will apply F1 brake.
Applying air to passage B will apply F2 brake.
Applying air to passage C will apply E2 clutch.
Applying air to passage D will apply E1 clutch.