Time Lag Test

The shift lever is shifted while the engine is idling, there will be a certain time elapse or lag before the shock can be felt. This is used for checking the condition of the OD clutch, forward clutch, direct clutch and first and reverse brake.

CAUTION:
a. Perform the test at n6rmal operating fluid (50 - 80 °C or t22 - 176 °F).
b. Be sure to allow a one minute interval between tests.
c. Make three measurements and take the average value.

MEASURE TIME LAG
a. Fully apply the parking brake.
b. Start the engine and check the idle speed.

Idling speed: 700 rpm

c. Shift the shift lever from N -> D range.
Using a stop watch, measure the time it takes from shifting the lever until the shock is felt.

Time lag: Less than 1.2 seconds

d. In same manner, measure the time lag for N -> R.

Time lag: Less than 1.5 seconds

EVALUATION
a. If N -> D time lag is longer than specified:
- Line pressure too low
- Forward clutch worn
- OD one-way clutch not operating properly

b. If N -> R time lag is longer than specified:
- Line pressure too low
- Direct clutch worn
- First and reverse brake worn
- OD one-way clutch not operating properly