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Releasing and dismantling contact housings

Secondary locking element

The secondary locking mechanism is a housing catch (second line locking mechanism) that secures all the wires in one contact housing. If a secondary locking mechanism is fitted to a contact housing, this must always be opened or removed using the appropriate tool before releasing and pulling out individual crimp contacts.
The secondary locking mechanism is different in colour from the rest of the contact housing. This makes it easier to identify the secondary locking mechanism and clarifies its intended function.
The types of contact housing shown here are just a few examples to show the different functions of secondary locking mechanism.

Example 1:

The housing catch is disengaged by removing a “toothed element”-arrow-.

vw_contact_housing_secondary_1

Example 2:

The housing catch is disengaged by opening a “flap”-arrow-.

vw_contact_housing_secondary_2

Example 3:

The housing catch can be disengaged by detaching a “slide”-arrow-.

vw_contact_housing_secondary_3

Primary locking element

The primary locking mechanism is what fixes an individual crimp contact in the contact housing.
If necessary, any housing catches in place (secondary locking mechanisms) must be released or removed prior to disengaging the contacts using the prescribed tool.
The types of primary locking mechanisms shown as follows are just a few examples to show the different functions of primary locking mechanism.

Round connector systems

If necessary, any housing catches in place (secondary locking mechanisms) must be released or removed prior to disengaging the contacts using the prescribed tool.

  • Insert the release tool appropriate for the contact housing in the release port of the contact housing.
  • Grab hold of the contact by the wire and push it lightly into the contact housing -arrow-.

vw_contact_housing_primary_round_1

Note: By pushing the contact in the direction of the contact housing, the locking tabs of the contact are lifted up by the housing edge and can be disengaged using the release tool.

  • At the same time, push the release tool in the direction of the contact housing -arrow- and pull out the released contact from the contact housing.
  • The release tool can be pulled out of the contact housing again once the contact has been removed.

vw_contact_housing_primary_round_2

Flat connector systems

If necessary, any housing catches in place (secondary locking mechanisms) must be released or removed prior to disengaging the contacts using the prescribed tool.

Flat connector with one locking tab:

  • Insert the release tool appropriate for the contact housing in the release port of the contact housing.
  • Grab hold of the contact by the wire and push it lightly into the contact housing -arrow-.

vw_contact_housing_primary_flat_1

Note: By pushing the contact in the direction of the contact housing, the locking tab of the contact is lifted up by the housing edge and can be disengaged using the release tool.

vw_contact_housing_primary_flat_2

  • At the same time, push the release tool in the direction of the contact housing and pull out the released contact from the contact housing -arrow-.
  • The release tool can be pulled out of the contact housing again once the contact has been removed.

Flat connector with two locking tabs:

  • Insert the release tool appropriate for the contact housing in the release port of the contact housing.
  • Grab hold of the contact by the wire and push it fully into the contact housing -arrow-.

vw_contact_housing_primary_flat_3

Note: By pushing the contact in the direction of the contact housing, the locking tabs of the contact are lifted up by the housing edge and can be disengaged using the release tool.

vw_contact_housing_primary_flat_4

  • At the same time, push the release tool in the direction of the contact housing and pull out the released contact from the contact housing -arrow-.
  • The release tool can be pulled out of the contact housing again once the contact has been removed.

Asymmetrical:

  • Insert the release tool appropriate for the contact housing in the release port of the contact housing.
  • Grab hold of the contact by the wire and push it lightly into the contact housing -arrow-.

vw_contact_housing_primary_flat_5

Note: By pushing the contact in the direction of the contact housing, the locking tabs of the contact are lifted up by the housing edge and can be disengaged using the release tool.

vw_contact_housing_primary_flat_6

  • At the same time, push the release tool in the direction of the contact housing and pull out the released contact from the contact housing -arrow-.
  • The release tool can be pulled out of the contact housing again once the contact has been removed.

Special connector systems

If necessary, any housing catches in place (secondary locking mechanisms) must be released or removed prior to disengaging the contacts using the prescribed tool.

Faston contacts:

  • Insert the release tool appropriate for the contact housing in the release port of the contact housing.
  • Grab hold of the contact by the wire and push it lightly into the contact housing.

vw_contact_housing_primary_special_1

Note: By pushing the contact in the direction of the contact housing, the locking tabs of the contact are lifted up by the housing edge and can be disengaged using the release tool.

vw_contact_housing_primary_special_2

  • At the same time, push the release tool in the direction of the contact housing and pull out the released contact from the contact housing -arrow-.
  • The release tool can be pulled out of the contact housing again once the contact has been removed.

GT 150/280 contacts:

  • Insert the release tool appropriate for the contact housing under the locking tab into the contact housing.
  • Push the tool onto the limit stop -arrow- in the contact housing.

vw_contact_housing_primary_special_3

The contact is ejected from the contact housing.

vw_contact_housing_primary_special_4

  • The release tool can be pulled out of the contact housing again once the contact has been ejected.

Contacts without locking tabs:

  • Insert the release tool under the locking tab of the contact housing.
  • Push through the release tool with a light upward movement -arrow- onto the limit stop.

vw_contact_housing_primary_special_5

The contact is ejected from the contact housing.

vw_contact_housing_primary_special_6

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