Terminal Housings
Terminal Housings
=> [ Terminal Housings, Release and Disassembly, General Information ]
=> [ Secondary Lock ]
=> [ Primary Lock ]
=> [ Primary Connector with Round Terminal Connector Systems ]
=> [ Primary Connector with Flat Terminal Connector Systems ]
=> [ Primary Connector with Flat Terminal Connector Systems ]
Terminal Housings, Release and Disassembly, General Information
CAUTION!
Risk of injury.
• Some tools are supplied with a tool safety clip, which is slid over the tool points after using the tool, in order to protect other workers from injuries and tool points from damage.
• Observe general notes for repairs on the vehicle electrical system => [ Vehicle Electrical System, General Information ] Wiring Harnesses and Connectors.
• Always use the release tools intended for the releasing process. Under no circumstances may terminals be pulled forcefully out of terminal housings.
• Damaged contact housings must always be replaced.
• Small screwdrivers may be used as an aid to release the secondary locks.
• Chamber/pin assignment is located partially stamped in on secondary lock or rear side of terminal housing.
• Detailed information on component locations of harness connectors.
• Allocation of the correct release tool to the respective retainers => (VAS 1978/35) instructions.
Secondary Lock
• The secondary lock is a housing securing mechanism (second locking mechanism) that secures all wires in one terminal housing. If a secondary lock is installed at a terminal housing, it must always be opened or removed using specified tool before releasing and pulling out individual crimp contacts.
• Secondary lock is distinguished by a different color from the rest of the contact housing. It simplifies recognizing the secondary lock and clarifies its function.
• The shapes of the terminal housings depicted here are only a selection which, as an example, should make clear the various functions of the secondary lock.
Example 1:
- Release housing lock by removing "cam" - arrow -.
Example 2:
- Release housing lock by opening "lid" - arrow -.
Example 3:
- Release housing lock by disengaging "slider" - arrow -.
Primary Lock
• The primary lock is the locking mechanism of an individual crimp contact in the terminal housing.
• If necessary, housing securing mechanisms (secondary locks) must be released or removed using specified tool before releasing the contacts => [ Secondary Lock ].
• The shapes of the primary locks depicted in the following are only a selection which, as an example, should make clear the various functions of the secondary lock.
• Allocation of the correct release tool to the respective locking mechanism => (VAS 1978/35) operating instructions.
Primary Connector with Round Terminal Connector Systems
Procedure
• If necessary, housing securing mechanisms (secondary locks) must be released or removed using specified tool before releasing the contacts => [ Secondary Lock ].
- Guide release tool (which fits terminal housing) into release channel on terminal housing as illustrated.
- Grasp contact at wire and gently push into terminal housing - left arrow -.
• By pushing contact in direction of terminal housing, contact retaining tabs are lifted off the housing shoulder and can be released using release tool.
- At the same time, push release tool in direction of the terminal housing - right arrow - and pull the released contact out of the terminal housing.
- Remove the release tool after removing the contact from the housing.
Primary Connector with Flat Terminal Connector Systems
Procedure
• If necessary, housing securing mechanisms (secondary locks) must be released or removed using specified tool before releasing contacts => [ Secondary Lock ].
Flat connector system with one retaining tab:
- Guide release tool (which fits terminal housing) into release channel on terminal housing.
- Grasp contact at wire and push gently into terminal housing - arrow -.
• By pushing contact in direction of terminal housing, contact retaining tab is lifted off the housing shoulder and can be released using release tool.
- At the same time, push release tool in direction of terminal housing and pull released contact out of terminal housing - arrow -.
- Remove release tool after removing contact from housing.
Flat connector system with two retaining tabs:
- Guide release tool (which fits terminal housing) into release channel on terminal housing.
- Grasp contact at wire and push gently into terminal housing until it stops - arrow -.
• By pushing contact in direction of terminal housing, contact retaining tabs are lifted off the housing shoulder and can be released using release tool.
- At the same time, push release tool in direction of terminal housing and pull released contact out of terminal housing - arrow -.
- Remove release tool after removing contact from housing.
Asymmetrical:
- Guide release tool (which fits terminal housing) into release channel on terminal housing.
- Grasp contact at wire and push gently into terminal housing - arrow -.
• By pushing contact in direction of terminal housing, contact retaining tabs are lifted off the housing shoulder and can be released using release tool.
- At the same time, push release tool in the direction of terminal housing and pull released contact out of terminal housing - arrow -.
- Remove the release tool after removing the contact from the housing.
Primary Connector with Special Connector Systems
Procedure
• If necessary, housing securing mechanisms (secondary locks) must be released or removed using specified tool before releasing the contacts => [ Secondary Lock ].
Faston contacts:
- Guide release tool (that fits terminal housing) into release channel on terminal housing - arrow -.
- Grasp contact at wire and push gently into terminal housing.
• By pushing contact in direction of terminal housing, contact retaining tabs are lifted off the housing shoulder and can be released using release tool.
- At the same time, push release tool in direction of terminal housing and pull released contact out of terminal housing - arrow -.
- Remove release tool after removing contact from housing.
GT 150/280 contacts:
- Guide release tool (which fits terminal housing) under retaining tab into terminal housing.
- Push tool into terminal housing until it stops - arrow -.
• Contact is ejected from the terminal housing.
- Remove release tool after removing contact from housing.
Contacts without retaining tabs:
- Insert release tool under retaining tab of terminal housing.
- Push release tool through until it stops by gently lifting - arrow -.
• Contact is ejected from terminal housing.
- Remove release tool after removing the contact from housing.