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| Illustration 1 | g01316141 |
The TA19 has the following standard features:
- 16 forward gears
- 4 reverse gears
See Table 1 for information regarding the gear ratios.
| Gear Type | |
| Gear Ratios | High Contact Ratio Gears |
| 1F | 8.442 |
| 2F | 6.648 |
| 3F | 5.253 |
| 4F | 4.137 |
| 5F | 3.474 |
| 6F | 3.086 |
| 7F | 2.736 |
| 8F | 2.430 |
| 9F | 2.162 |
| 10F | 1.920 |
| 11F | 1.702 |
| 12F | 1.512 |
| 13F | 1.270 |
| 14F | 1.000 |
| 15F | 0.790 |
| 16F | 0.622 |
| 1R | 10.553 |
| 2R | 4.343 |
| 3R | 3.857 |
| 4R | 1.587 |
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| Illustration 2 | g01315565 |
The controls for the TA19 and the operation of the TA19 will be controlled within the operator's cab of the Original Equipment Manufacturer (OEM). The main harness assembly (1) will connect with the transmission control harness from the cab.
Transmission System
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| Illustration 3 | g01295013 |
Oil that is supplied to the transmission hydraulic control system is delivered into the modulating valves and into the relief valve.
When the modulating valves are energized, oil flows to the transmission clutches. When the modulating valves are de-energized, oil flows from the valve to the common sump.
The main relief valve regulates the pressure in the transmission hydraulic control system to a maximum pressure of 2100 kPa (305 psi).
Excess oil flows from the main relief valve to the transmission oil cooler. The cooler bypass valve will open if the pressure reaches 520 kPa (75 psi) at the input side of the transmission oil cooler. Normally, the cooler bypass valve will remain closed unless there is a restriction in the transmission oil cooler or if the oil is very cold.
Oil from the transmission oil cooler flows to the transmission for lubrication of the clutches. The transmission lubrication relief valve regulates the oil pressure for lubrication to 275 kPa (40 psi).