Worksheets
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| Power Train | |||
|---|---|---|---|
| Machine Model | Today's Date | ||
| Machine Serial Number | Machine Hours | ||
| Serial Number of Converter | Hours | ||
| ECM Flash File (Transmission) | |||
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| Visual Checks | |||
|---|---|---|---|
| Oil level | Oil Viscosity | ||
| Air in Oil | Oil Filter Examination |
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| Water in Oil | |||
Torque Converter Test
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| Test | Specifications | Actual |
|---|---|---|
| Torque Converter Oil Temperature |
> 80 °C (176 °F) < 121 °C (250 °F) |
|
| Torque Converter Inlet Pressure | Max restriction 930 ± 35 kPa (135 ± 5 psi) |
Low idle: High idle: |
| Torque Converter Outlet Pressure at Stall rpm | 345 to 550 kPa (50 to 80 psi) |
Low idle: High idle: Stall: |
| Torque Converter Stall Speed | 1672 ± 65 RPM (1) 1640 ± 65 RPM (2) |
|
| Transmission Charge Pressure (Converter Drive) | Low idle > 2515 kPa (365 psi) High idle < 3065 kPa (445 psi) |
Low idle: High idle: |
| Transmission Charge Pressure (Direct Drive) | 2310 ± 70 kPa (335 ± 10 psi) Turning at 1300 rpm |
|
| Lockup Clutch Pilot Pressure (3) |
1725 ± 70 kPa (250 ± 10 psi) |
|
| Lockup Clutch Signal Pressure (Lockup Solenoid) (4) |
1445 to 2240 kPa (210 to 325 psi) |
|
| Lockup Clutch Primary Pressure (3) |
1030 ± 35 kPa (150 ± 5 psi) |
|
| Lockup Clutch Maximum Pressure (4) |
2153 to 2350 kPa (312 to 340 psi) |
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| ( 1 ) | This is for the (S/N: 4GZ) and the (S/N: ATY). |
| ( 2 ) | This is for the (S/N: CBR). |
| ( 3 ) | The engine is running at low idle. The transmission is in neutral and the torque converter is in direct drive. |
| ( 4 ) | The engine is running at 1300 rpm. The transmission is in neutral and the torque converter is in direct drive. |
Transmission Tests
Transmission Pressure
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| Converter Drive | Lockup Solenoid De-Energized |
|||
| Specification | Actual | |||
| LI | HI | LI | HI | |
| Pump pressure | 2515 kPa (365 psi) Minimum |
3065 kPa (445 psi) Maximum |
||
| Lube oil pressure | 5 ± 65 kPa (0.7 ± 10 psi) |
160 ± 50 kPa (23 ± 7 psi) |
||
| Pilot pressure | 2410 to 2755 kPa (350 to 400 psi) |
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| Transmission Oil Temperature |
> 82 °C (180 °F) |
< 121 °C (250 °F) |
||
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| Direct Drive Pressures | Lockup Solenoid Energized |
|||
| Specification | Actual | |||
| LI | 1300 RPM | LI | 1300 RPM | |
| Pump Pressure Adjust with the priority reducing valve. |
X | 2310 ± 70 kPa (335 ± 10 psi) |
X | |
| Station D Pressure | X | Adjust station D in order to get correct rail pressure. | X | |
| Neutral Clutch Pressure Station C |
X | 1620 ± 70 kPa (235 ± 10 psi) |
X | |
Transmission Clutch Tests
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| Clutch Chart | |
| Speed | Engaged Clutches |
| N | 3 |
| R | 1 and 6 |
| 1 | 1 and 5 |
| 2 | 2 and 5 |
| 3 | 1 and 4 |
| 4 | 2 and 4 |
| 5 | 1 and 3 |
| 6 | 2 and 3 |
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| Primary Clutch Pressure at Low Idle (1) (2) | |||
| Station | Clutch | Specifications | Actual |
| A | 2 | 525 kPa (76 psi) |
|
| B | 1 | 475 kPa (69 psi) |
|
| C | 3 | 480 kPa (70 psi) |
|
| D | Dual relief | X | X |
| E | 4 | 425 kPa (62 psi) |
|
| F | 5 | 450 kPa (65 psi) |
|
| G | 6 | 425 kPa (62 psi) |
|
| H | X | X | X |
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| ( 1 ) | The pressure for the primary clutch has a tolerance of +50 -35 kPa (+7 -5 psi). |
| ( 2 ) | The load piston plug must be removed. |
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| Maximum Clutch Pressure (1) (2) (3) |
|||||||
| Specification | Actual | ||||||
| Station | Clutch | LI | HI | Lockup at 1300 rpm | LI | HI | Lockup at 1300 rpm |
| A | 2 | X | X | 1620 kPa (235 psi) |
X | X | |
| B | 1 | 2400 kPa (348 psi) |
2425 kPa (352 psi) |
1620 kPa (235 psi) |
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| C | 3 | 2470 kPa (358 psi) |
2470 kPa (358 psi) |
1620 kPa (235 psi) |
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| D | Dual relief | Adjust Station D in order to get the correct clutch pressure during lockup. | X | X | |||
| E | 4 | X | X | 1620 kPa (235 psi) |
X | X | |
| F | 5 | 2585 kPa (375 psi) |
2720 kPa (395 psi) |
1620 kPa (235 psi) |
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| G | 6 | 2585 kPa (375 psi) |
2805 kPa (407 psi) |
1620 kPa (235 psi) |
|||
| H | X | X | X | X | X | X | X |
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| ( 1 ) | The maximum pressure for the clutches has a tolerance of +240 -100 kPa (+35 -15 psi). |
| ( 2 ) | During the test for the lockup, plug the hose for the lockup signal to D station. The pressure will be approximately 965 kPa (140 psi). |
| ( 3 ) | The load piston plug must be installed. |
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