2. Remove the mounting bolt caps (photo). Do not unscrew the two octagonal head bolts, as they connect the caliper body and bracket.
Photo 5.2 Remove the caliper bolt cap (GMF type).
3. Disconnect the fluid tube from the caliper and either plug it with rubber rings or allow the fluid to drain into a container.
4. Using an Allen key, unscrew the two socket head mounting bolts (photo).
Photo 5.4 Unscrew the caliper bolt (type GMF).
5. Remove the caliper from the machine.
Photo 5.5 Removing the caliper
6. Brush off any external dirt and remove the disc pads as indicated in Section 3.
7. Using a chisel, free the sliding inner caps from dust from the caliper housing (Figure 9.13).
8. Remove the piston dust boot (Figure 9.14).
9. Press on the outer ends of the sliding cuffs until it is possible to detach their dust caps from the cuff grooves and remove them.
10. Remove the sliding cuffs from the caliper housing (Figure 9.15).
11. Perform the operations described in Section 4, paragraphs 9-15.
Figure 9.11 - Removing the caliper mounting bolt caps (GMF)
12. Install the new dust seal into the groove on the piston when the piston is already partially inserted.
Figure 9.12 - Removing a Socket Head Fastening Bolt (GMF)
13. Replace the sealing rings on the sliding cuffs, using the special grease provided in the repair kit on the grooves of the sealing rings. Make sure the sealing ring is positioned in the center groove.
Figure 9.13 - Removing the inner dust caps from the sliding seals (GMF)
14. Install the sliding seals so that the groove on the dust cap faces the caliper bracket. Do not push the cuffs all the way in at this stage. Install new dust caps for the sliding cups in their place on the caliper. Use a piece of pipe to install them permanently.
Figure 9.14 - Removing the piston dust boot (GMF)
15. Press the piston in completely and secure the dust boot to the housing, holding it in place with a piece of suitable pipe.
Figure 9.15 - Removing the caliper sliding seals (GMF)
16. Reinstall the caliper, screw in and tighten the socket head bolts, after cleaning the threads and lubricating them with a thread locking compound.
Figure 9.16 - Correct position of the dust cap groove of the sliding cuff - indicated by the arrow. (GMF)
17. Install the bolt caps.
18. Reconnect the fluid hose using new seals.
19. Install the disc pads as shown in Section 3.
20. Bleed the hydraulic system as described in Section 20.
21. Install the wheels and lower the car.
Text copied from an internet website: opelbook.ru
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