Compressor Belt Pulley, Removing and Installing from Compressor

Compressor Belt Pulley, Removing and Installing from Compressor

• If overload protection of pulley triggers, check compressor for ease of motion before replacing the pulley. If compressor creates friction, replace it completely.

• To remove belt pulley, it depends on engine version if it is necessary to remove compressor from engine => [ Compressor with Pulley, Removing and Installing at Bracket ] Compressor with Pulley, Removing and Installing at Bracket.

• The compressor can be removed and installed at the bracket without opening the refrigerant lines => [ Compressor with Pulley, Removing and Installing at Bracket ] Compressor with Pulley, Removing and Installing at Bracket.

• Mark direction of rotation of ribbed belt using chalk or felt-tip marker before removing. Running a used belt in the opposite direction could destroy it.

• Different compressors may be installed depending on engine and country variant.

• Belt pulley is made of plastic and is sensitive to impact, therefore handle it with especial care





• If overload safeguard of drive plate - C - has triggered, drive plate can be pried off from belt pulley - D - after removing circlip - A -





Preparation

- Remove noise insulation.

- Release tension on ribbed belt and remove it.

- If necessary, remove compressor from engine => [ Compressor with Pulley, Removing and Installing at Bracket ] Compressor with Pulley, Removing and Installing at Bracket

Removing

- Remove the plastic disc - B - from belt pulley - A - (if installed).





- Using e.g. a small screwdriver or needle-nose pliers, carefully remove circlip - A - (which might have rubber disc vulcanized on to it); take extreme care not to damage belt pulley when doing this.





- Hold compressor driveshaft - B - firmly in place using a standard Allen wrench or a socket wrench from shock absorber set (T10001) (depending on version of compressor) and rotate drive plate - C - along with belt pulley - D - in direction of arrow - E - (tightening torque 35 Nm).

- Remove drive plate - C -.

- Remove circlip - A -.





- Remove pulley - B -.

Installing

• Replace circlip - A -.

• Clean compressor flange before sliding on belt pulley.

• When installing the circlip - A -, note that it cannot be bent open more than is necessary for installation.





- Install belt pulley - B -.

- Insert circlip - A - on proper side, the side with beveled insertion edge - C - faces away from compressor (install flat side facing compressor).

- Insert rubber element - D - in belt pulley - B - according to illustration.

- When installing drive plate, coat rubber element - D - lightly e.g. with tire mounting paste or soap solution (as sliding compound).

- Insert drive plate - C - far enough into rubber elements - D - until it contacts compressor shaft.

- Screw drive plate - C - onto compressor shaft - B - by rotating in direction of arrow - F -.





- Tighten drive plate - C - (via belt pulley - D -) to 35 Nm by rotating in direction of arrow - F - using a standard band wrench (with webbing), hold compressor shaft - B - firmly in place using a standard Allen wrench or a socket wrench from shock absorber set (T10001).

- Install circlip - A -.

- Clean drive plate of belt pulley - A - and glue plastic disc - B - centered onto drive plate (only on compressors without rubber ring on circlip).