Daewoo Musso. Manual — part 270
5A-112 AUTOMATIC TRANSMISSION
Pump Cover and Converter Support
Notice
1. Do not wash the nose of solenoids in solvent.
2. Ensure that the correct ‘O’ ring is fitted for the application.
3. Do not mix up the low first blow-off and the torque converter
blow-off ball springs.
4. Be careful not to damage the needle bearings on the
assembly. Avoid any axial impact loads during assembly.
5. Check the transmission end float. This will help to detect
any missing parts or incorrect assembly.
Notice
Figure 8.35 shows the orientation of the cross- sections for
figures 8.36 to 8.42.
To assemble the pump cover and converter support
(refer to figures 8.34 and 8.35), proceed as follows.
1. Check the pump body for any damage, chips or irregularity.
Check that the bush is firmly staked in the drive gear.
2. Install the seal flush with the front face of the pump body.
3. Lubricate the pump bush, and the drive and driven gears,
with automatic transmission fluid.
4. Install the pump driven gear and the pump drive gear into
the pump body.
5. Using a straight edge and thickness gauge, check that the
clearance between pump face and gears is 0.04 - 0.018
mm.
6. Lubricate the pump body ‘O’ ring with automatic transmission
fluid and fit it to the pump body. Put the pump body to one
side.
7. Ensure that the pump cover cavities, ports and holes are
clean and free of any obstruction.
8. Lubricate all loose parts with automatic transmission fluid
prior to assembly.
Figure 8.34 - Pump, Cover and Converter
Support
Figure 8.35 - Pump Cover Assembly
AUTOMATIC TRANSMISSION 5A-113
9. Assemble the primary regulator valve and plunger (refer
to figure 8.36) to the pump cover, ensuring that the
regulator valve slides freely, then fit the regulator valve
plug and ‘O’ ring.
10. Install the retaining pin.
11. Install the converter clutch regulator valve (refer to figure
8.37), plug, and ‘O’ ring.
Figure 8.36 - Primary Regulator Valve
Figure 8.37 - Converter Clutch Regulator Valve
5A-114 AUTOMATIC TRANSMISSION
13. Install the converter clutch control valve (refer to figure
8.38), spring, plug, and ‘O’ ring.
14. Install the retaining pin. Refer to figure 8.39.
Figure 8.39 - Valve Retaining Plugs and Pins
Figure 8.38 - Converter Clutch Control Valve
12. Install the retaining pin. Refer to figure 8.39.
AUTOMATIC TRANSMISSION 5A-115
15. Install the C1 bias valve spring, valve, plug and ‘O’ ring.
Refer to figure 8.40.
16. Install the retaining pin. Refer to figure 8.39.
17. Install the converter release check ball and spring and the
feed ball. Refer to figures 8.41, 8.42 and 8.43.
Figure 8.40 - C1 Bias Valve
Figure 8.41 - Converter Relief Ball and Spring
Figure 8.42 - Peed Ball
Figure 8.42 - Feed Ball
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