Time Lag Test
TIME LAG TESTWhen the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag before the shock can be felt. This is used for checking the condition of the O/D direct clutch, forward clutch, direct clutch, and first and reverse brake.
NOTICE:
- Perform the test at normal operating fluid temperature 50 - 60 °C (122 - 140 °F).
- Be sure to allow a one minute interval between tests.
- Make 3 measurements and take the average value.
MEASURE TIME LAG
Time Lag Testing:
(a) Fully apply the parking brake
(b) Start the engine and check idle speed.
Idle speed: 750 rpm (In N position and air conditioner OFF)
(c) Shift the shift lever from "N" to "D" position. Using a stop watch, measure the time it takes from shifting the lever until the shock is felt.
(d) In same manner. measure the time lag for "N" to "R".
Time lag:
N--> D Less than 1.2 seconds
N--> R Less than 1.5 seconds
EVALUATION
If N--> D time lag is longer than specified:
^ Line pressure is too low
^ Forward clutch is worn
^ O/D one-way clutch is not operating properly
If N--> R time lag is longer than specified:
^ Line pressure is too low
^ Direct clutch is worn
^ First and reverse brake band is worn
^ O/D clutch is worn