Great Wall Hover. Manual - part 18

Automatic transmission-3

8. Use two bolts to install the back device on the extended case of the transmission, these lengths are important. If it is too long,

it will hinder the end of the bolt and affect the threads on the case. Ensure the proper length and special torque of the bolt.

9. Pay attention that the height of the oil has been determined before delivery from the ION Company. The oil height needs not

checking or correction, except that improper oil is suspected to be used, or additional oil is needed because of leakage.

Automatic transmission-4

10. The gross weight of the transmission is 76kg; mostly weight is on the front of the transmission (side of torque converter). This

should be considered when design the handling/assembly tools.

11. The crankshaft speed/position sensor is installed on the top of transmission torque converter housing which must be installed

after the transmission is installed on the engine. The sensor will be damaged if it is installed before the installation of

transmission.

12. The transmission use the breathing tube connected to rear end of transmission. The tube must not be restricted or blocked

otherwise the air pressure in transmission will be increased. It is unallowable that the water/dirty/dust enters into the

breathing tube; otherwise the transmission will be damaged.

Removal of transmission

If the transmission needs removing for any reasons, following is the preventive measure to help the remove.

1. Must not only support the oil pan in middle of transmission for it will be deformed and leaked. The oil pan will not be deformed

when supports its external edge.

2. It must not allow the transmission to connect to the engine when the rear end is without connection, otherwise the exhaust

system of vehicle will be damaged.

3. Remove all torque converter bolts and push back the torque converter before remove the bolt connected the torque converter

housing to engine. Once all bolts connected the torque converter housing to engine are removed, use the torque converter the
push the transmission from the location pin, then ensure the torque converter is on the transmission and the transmission is

separated form location pin.

4. Install the dustproof cover on the cooler connector rapidly after open the oil cooler pipe; otherwise the oil leakage from the

torque converter will be 2L. The odometer dustproof cover can prevent the dirty from entering into the transmission and avoids

the leakage of oil form transmission.

5. The engine speed sensor is installed on the top of transmission and should be removed before the transmission is removed form

the engine, for the sensor will be damaged during the removal process of the transmission.

Figure 2.1 Gear selection interface

mode selection

gear selection

indication

gear slide way

Operation and display interface

The four-speed automatic transmission has three types of operation display interface which are shown as follows:

Gear selection

The transmission uses the traditional gear selection shifting handle, which is shown in figure. The gear rod can be moved on the gear

slide way according to the requirement. The relationship between the related gear and its function.

Automatic transmission-5

Table 2.1 Gear selection and its function

Gear selection

function

-Gear

(manual 1

-Gear )

The first gear is using for climbing and braking. It is a function which limits the speed of

the car. The speed limitation by engine is realized by reduce the opening degree of

throttle position.

2nd-Gear (automatic, manual

-Gear)

In economic mode, it can process the 1

and 2

shifting operation when engage the 2

–Gear. The limitation of vehicle speed by engine is realized through reducing the

opening of throttle position. in 4WD 4 high, , the transmission will maintain 2

-Gear

position The manual mode and winter-Mode will only maintain 2nd-Gear 。

-Gear

(automatic, manual 3rd-Gea)

In economic mode and dynamic mode, it can process the shifting operation of 1

, 2

and 3rd-Gear when engage the 3rd-Gear, and can reaches the very high vehicle speed. At

this time the locking clutch can process the locking action, refer to vehicle user manual.

The limitation of vehicle speed by engine is realized by reduce the opening of throttle

position. In 4WD 4 low, the transmission should be maintained in 3

–Gear position.

Under manual mode, the transmission will be kept in 3rd-Gear.

D-gear

(drive)

It can process the 1

, 2

, 3

and 4

–Gear position operation and gear-shifting operation

of (1-2), (1-3), (2-3), (2-4), (3-4), (4-3), (4-2), (3-1) and (2-1). This shifting operation is

processed by taking the vehicle speed, throttle position, throttle position switching

frequency (or forced Gear-decreasing) as the parameter. The locking clutch can process

the locking action in 3rd –Gear, 4

-Gear according to the type of vehicle. Refer to user

manual of vehicle.

N-Gear

(neutral gear)

Only the rear brake belt is engaged at this time. It determines whether the function can

be realized according to the vehicle speed, engine speed and throttle position. But the

gear-position sensor allows the starting of engine. Allow the slide of N-Gear.

R-Gear

(reverse gear)

Set the anti-misoperation in forward function according to the vehicle speed, engine

speed and throttle position opening to realize the reverse operation. The gear-position

sensor can start the reverse lamp.

P-gear

(parking gear)

Only the rear brake belt is engaged at this time. The function can be determined

according to the vehicle speed, engine speed and throttle position. The output shaft of

transmission is locked. The gear-position sensor can start the engine.

Automatic transmission-6

Selection of drive mode

The selection of drive mode includes a mode selection switch and indicator lamp. The drive mode selection switch is located

on the operating panel. It can provide the different mode selection according to the different type of car.

It has the optimal fuel economy when select the “normal” mode. At this time, the indicator lamp is not light. When select the

“dynamic” mode, the car will have the maximum dynamic performance and the “dynamic” mode indicator lamp is light. When select

the “snowland” mode, it will realize the starting of “2

-Gear”, the “snowland” mode indicator lamp is light, meanwhile the

“dynamic” mode indicator lamp will be closed. When select the manual mode, press down the “snowland” switch firstly, the

“manual” light will be light when the gear is in 3, 2, 1. When in manual mode, 1-2, 2-3, 3-4, 3-2, 2-1, 1-3, 3-1 is shifted by driver

manually and can not be shifted automatically. It can be used in car-racing etc. for the special mode of each model of car refers to

operation manual of user.

Operation instruction

Function

5 Brake

function

Can decrease the gear-position in slope to improve the brake effect and increase the vehicle safety.

6 Speed-up

function It can select the manual shifting to increase the vehicle speed completely during the speed-up.

cautions

It must place the transmission in the P-Gear or N-Gear when start the engine.

It must place the transmission in P-Gear during the parking.

It must place the transmission in N-Gear when trail the car.

It must be powered off when remove the transmission.

It must be powered off when install the transmission.

The transmission processes the communication and calculation with the engine electronic control computer by the precision
central on-line computer. It not only save the fuel, but also provide the maximum mode function, including field, winter and
manual selection. It provides the two conditions, manual and electric for the fast race of racing player. It has racing capacity which
can compete the speed increasing with the manual transmission.

automatic

Having anti-slide function

It is allowable that the D-Gear
in “W” mode is used in
snowland and M-A integration
mode.

automatic

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