Contents: Position "P" – parking ("Parking") ↳ Position "R" - reverse ↳ Position "N" - neutral position ↳ Position "D" - automatic gear… ↳ Position "2" – automatic gear… ↳ Position "1" – 1st gear is… ↳ Using forced gear reduction… ↳ Towing ↳
Elements of automatic transmission Ford A 4 LD
1 - oil pan, 2 - oil receiver, 3 - gaskets, 4 - reverse gear drive, 5 - hydrokinetic control unit, 6 - cover and seals, 7 - forward gear drive, 8 - middle gear drive, 9 - vacuum regulator, 10 - acceleration valve, 11 - safety switch, 12 - locking ratchet and parking lock mechanism, 13 - sealing ring, 14 - rear gearbox housing, 14a - gasket, 15 - parking lock mechanism latch, 16 - secondary shaft, 17 - regulator, 18 - Viton sealing rings, 19 - regulator hub with parking lock mechanism gear, 20 - ring, 21 - middle gearbox housing, 22 - oil pan gasket, 23 - rear clutch, 24 - ring, 25 - band brakes, 26 - brake drum, 27 - rear planetary gear, 28 - retaining ring, 28a - gasket, 29 - sun gears, 30 - front planetary gear housing, 31 - front planetary gear, 32 - needle bearing, 32a and 33 - rings, 34 - front clutch, 35 - sealing rings, 36 - direct drive multi-plate clutch, 37 - thrust lining, 37a - sealing rings, 38 - middle planetary gear housing, 39 - thrust lining, 40 - middle planetary gear, 41 - one-way clutch, 41a - needle bearing, 42 - multi-plate clutch, 43 - gasket, 44 - thrust lining, 45 - oil pump, 45a - sealing rings, 45b - oil pump shaft sealing ring, 46 – oil pump gear, 47 – intermediate plate, 47a – intermediate plate gasket, 48 – hydrokinetic transmission housing, 48a – gasket, 49 – output shaft, 50 – hydrokinetic transmission
Position "P" – parking ("Parking")
In this position, the rear wheels are fixed. The automatic transmission is locked by a ratchet mechanism, preventing its shafts from rotating. Setting the gearshift lever to the "P" position is only possible when the car is stationary.
Position "R" - reverse
The gearshift lever can only be set to the "R" position when the vehicle is stationary. Even at very low speeds, the vehicle must be stopped and only then reverse gear engaged.
Caution! Do not attempt to move the gearshift lever to position "R" when the vehicle is moving forward or to position "1", "2", "3" or "D" when the vehicle is moving backward.
Position "N" - neutral position
In this position of the gearshift lever, the drive is disconnected. The running engine does not drive the car. The engine carburetor is equipped with an automatic starting device, which, after it is started, maintains the accelerated idle speed of the engine during its warming up.
When the gearshift lever is moved from the "N" position to the "1", "2", "3", "D" or "R" position, the vehicle tends to move. Therefore, before moving the gearshift lever to one of these positions, you should press the brake pedal.
Position "D" - automatic gear shifting when moving forward
When the gearshift lever is in this position, the car starts moving in 1st gear, and shifting to 2nd, 3rd and 4th gears occurs automatically depending on the speed of the car, as well as the opening level of the throttle valve (the position of the accelerator pedal). Shifting to a lower gear also occurs automatically. Pressing the accelerator pedal all the way down and holding it in this position for a short period of time (kick-down) causes, depending on the speed, shifting from 3rd gear to 2nd or from 2nd to 1st, i.e. to a lower gear.
During engine warm-up, when the engine is running at a high idle speed, the vehicle tends to move slowly when the gearshift lever is set to position "1", "2", "3", "D" or "R". This tendency decreases as the engine warms up and its idle speed decreases. Therefore, when warming up the engine, it is recommended to press the brake pedal or tighten the handbrake lever before setting the gearshift lever to one of the above positions.
Position "2" – automatic gear shifting from 1st to 2nd and back
The car starts moving in 1st gear and during the movement it automatically switches to 2nd gear only. 3rd gear is not included. Position "2" is recommended for use during long descents from hills, since in this position quite intensive engine braking is possible and, thus, the brakes are protected from excessive heating.
Position "1" – 1st gear is constantly engaged
The car starts moving in 1st gear and does not shift to a higher gear. Position "1" is recommended for use when descending steep hills, as this position may result in very intense engine braking. Moving the gearshift lever to position "1" while driving in 3rd gear causes the gear to shift to 2nd. Shifting to 1st gear will only occur when the speed drops to 20–40 km/h.
When driving with the gearshift lever set to the "D" position, it is possible to immediately set the gear to 1st, provided that the vehicle speed is 30–50 km/h. This requires pressing the accelerator pedal all the way down.
Using forced gear reduction (kick-down)
Pressing the accelerator pedal all the way down makes possible sharp acceleration when driving downhill or overtaking (except for the above-mentioned cases of engine braking). When the gearshift lever is set to the "D" position, the gear automatically switches from a higher gear to a lower one. The described actions can only be used in the corresponding range of vehicle speed.
Towing
Instructions for towing a vehicle, as well as vehicles equipped with an automatic transmission, are provided in subsection 1.18.
(The text is available on the specified website info portal FordBook.ru)