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Testing time lag
While the engine is idling at a frequency when the lever movement to select the neutral position before the operation is felt, should take place in real time. Testing time delay - a checking of N-D, 1-2, and N-R battery, the forward clutch and single-loop, clutches, brake tape 2-4 gear shift and brake for low-speed and reverse. Preparation
Follow the training provided in the section "Testing of teamwork of an automatic transmission and the engine for the motionless car"
Testing
| PERFORMANCE ORDER | | 1. Start up the engine. | | 2. Check the engine speed of the engine idling. Specifications:
The frequency of rotation of the crankshaft of the engine idling: 800 ?� 50 min -1
Ignition timing (BTDC): 10 ?� 1 ?� (Contact TEN of a diagnostic socket is earthed) | | 3. Move the selector lever from the position "N" to the position "D" .Sekundomerom measure the time from the moment the lever to trigger transmission. | | 4. Stopwatch to measure the time from the lever to trigger transmission. |
A warning  Engine operation for at least one minute at idling speed transmission fluid cools and prevents deterioration of its properties.
| | 5. With the engine running, move the selector lever to position N and leave the engine running at idle speed for at least one minute. |
A warning Perform three tests on each mode, and calculate the average value of the time delay.
| 6. Similarly swipe tests when moving the selector lever in the following positions:
a. at position N> D;
b. at position N> D (hold mode of transmission);
c. at position N> R Time delay:
position N> D 0,5-1,0 with
position N> R 0,5-1,0 with |
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Evaluation test for the delay time
Condition | possible cause | | Switch N - D | More than the specified value | Insufficient pressure in the line
Slippage forward clutch
1 one-way clutch slip
Slip one-way clutch 2 | | Less than the specified value | Improper battery life N-D
Excessive pressure in line | | Switch N - D (HOLD TRANSFER) | More than the specified value | Insufficient pressure in the line
Slippage forward clutch
Slippage brake tape 2-4
1 one-way clutch slip | | Less than the specified value | Improper battery life 1-2
Excessive pressure in line | | Switch N - R | More than the specified value | Insufficient pressure in the line
Slippage brake for low speed and reverse
Slip clutch reverse | | Less than the specified value | Improper battery life N-R
Excessive pressure in line |
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