Chery QQ6 (S21) / S12LHD. Manual — part 238

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Figure 15

Be sure to use special tool and be careful to remove the oil seal on the clutch housing, because

excessive deformation or damage of the oil seal may result in oil leak of the transmission. Use a special tool

to remove the two oil seals on the clutch housing, and then remove the remaining bushes, oil ducts and outer

rings of bearings as shown in Figure 16. Replacing with new oil seals after the former ones are removed is

recommended.

Oil seal

Fork shaft bearing (3)

Outer ring of bearing

Oil duct

Figure 16

14. Disassembly of transmission housing

As shown in Figure 17, use a special tool to remove the oil seal of transmission housing, and then

remove oil drain channel, fork shaft bush and linear bearing.

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Linear bearing

Fork shaft bush

Oil seal Oil drain channel

Figure 17

Chapter Three Assembly and Regulation of QR513 Transmission

I. Assembly of QR513 Transmission

After disassembly, visually inspect parts for any abnormal condition such as deformation etc, and make

records; Replace the damaged parts, clean and wash all parts, then reassemble.

1. Assembly of differential assembly

Fit adjustment gaskets respectively at backsides of the two half axle gears, and then install the two half

axle gears together with their gaskets into the differential. When fitting adjustment gaskets for the half axle

gears, select the gasket with thickness as 1.2mm first. Fit spherical washers for the planetary gear, and then

simultaneously engage the two planetary gears with the two half axle gears (fit them to correct positions

while turning the gears). Insert the planetary gear shaft; note that the fixing pin hole on the shaft should align

correctly with that on the differential housing both in the position and along the direction. Measure the

clearance between the half axle gear and the planetary gear, and the normalized value should be

0.025~0.150mm; if the clearance does not conform to the normalized value, replace the adjustment gaskets

for the half axle gear, and then re-measure the clearance until it conforms to the standard with uniform

clearance at both sides. Drive down the fixing pin of planetary gear shaft from the fixing pin hole at the side

of differential housing with flange with the pin with end surface of the pin hole. Install driven gear of main

decelerator and ensure that the installation end surface of the gear fits well with the end surface of the

differential housing, and then fix the driven gear of main decelerator with bolts (apply sealant to full thread

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of the bolt before installation); screw the bolts home with the torque as 130±5Nm cornerwise and alternately;

respectively press in an inner ring of front and rear bearings from each of both ends of the differential

housing and check if it has been pressed to the designated position. Note that the lubricant applied onto

adjustment gaskets for half axle gears, planetary gear gaskets, junction surface of planetary gear and

planetary gear shaft, junction surface of half axle gear and differential housing should be the same as that

used inside the transmission. Refer to Figure 18.

Planetary gear (2) Planetary gear shaft Connecting bolt (8)

Half axle gear (2)

Figure 18

2. Assembly of clutch housing

Use a hammer and a special tool to fit oil seal of input shaft with spring side of the oil seal up and

grease applied to lip of the oil seal. Use a special tool and a hamper to fit right side oil seal of differential

with end surface of the oil seal flush with the housing surface, and then apply grease to lip of the oil seal. See

Figure 19.

Inner ring of

bearing (2)

Adjustment gasket

for planetary gear

(2 sheets)

Fixing pin of planetary

gear shaft

Adjustment gasket for half

axle gear (2 sheets)

20

Right side oil seal of differential

Special tool for installation

Oil seal of input shaft

Special tool

Figure 19

First, install the oil duct of output shaft to its designated position as shown in Figure 20 (note that the

oil inlet and outlet of the oil duct should align with those on the housing), and then use a special tool to

respectively install the outer rings of the front bearing of output shaft and the differential bearing.