Door Lock Cylinder: Service and Repair

Door Lock Cylinder (76.37.71)

Removal

1. WARNING: Before commencing work within a door interior, the earth cable must be disconnected from the battery terminal to prevent inadvertent activation of the global glass closing feature.

Remove driver's door casing.

2. Remove driver's door handle.
3. Remove operating arm and bias spring.
1. Remove 'C' clip securing plastic operating arm to barrel.
2. Remove operating arm and bias spring from barrel.







4. Slacken and remove screw securing barrel to housing and withdraw barrel.

Installation

1. NOTE: For re-fitting of original lock barrel, refer to operations 4 to 9.

Identify key cut code.

1. Hold key so that cut outs can be identified and commencing at key grip, note and record cut out sequence.







2. Fit lock discs to barrel.
1. Grease bore of lock barrel.
2. Ensure lock discs match recorded key code.
3. Grease the first seven discs and install them in the barrel in sequence with embossed spacers in between and orientated to align roller locations.
4. Fit wavy spring spacer.
5. Grease and fit final disc.







3. Fit shutter assembly and roller to barrel.
1. Grease shutter assembly and fit to barrel.
2. Align recesses in discs and spacers to accept the steel roller.
3. Grease steel roller and fit into recesses via barrel slot.
- Via adjacent barrel slot, check discs for correct sequence and orientation.







4. Fit lock barrel and shutter assembly to housing.
1. Align and fit barrel into lock housing.
2. Fit plastic securing ring to barrel and rotate to engage locking tangs.







5. Fit operating arm to barrel.
1. Fit bias spring to operating arm ensuring it is fully seated and tensioned, with ends positioned each side of pillar.
2. Fit operating arm and bias spring assembly to barrel and secure with 'C' clip.







6. Position lock assembly in door handle and fit and tighten securing screw.
7. Fit key and check lock function.
8. Fit driver's door handle.
9. Fit driver's door casing.