GMC G Service Manual page 1065

Figure 18 — Micro-Pack Connector
crimped on the wire and the terminal pulled back into the
connector to seat it in place.
To remove a terminal:
1. Slide the seal back on the wire.
2. Insert tool (3) BT-8518, or J35689, or equivalent, as
shown in insert "A" and "B", to release the terminal
locking tab (2).
3. Push the wire and terminal out through the connector.
If re-using the terminal, reshape the locking tang (2).
Weather-Pack
A Weather-Pack connector can be identified by a rubber
seal, at the rear of the connector. This connector, which is
in the engine compartment, protects against moisture and
dirt, which could create oxidation and deposits on the termi­
nals. This protection is important, because of the very low
voltage and current levels found in the electronic system.
Repair of a Weather-Pack terminal is shown in Figure
20. Use tool J 28742, or BT 8234-A, to remove the pin and
sleeve terminals.
1. METRI-PACK SERIES
ISO FEMALE TERMINAL
LOCKING TANG
2.
Figure 19 — Metri-Pack Series 150 Terminal Removal
DIESEL EMISSIONS 6E2-45
If removal is attempted with an ordinary pick, there is a
good chance that the terminal will be bent, or deformed.
And, unlike standard blade type terminals, there terminals
cannot be straightened once they are bent.
Make certain that the connectors are properly seated
and all of the sealing rings in place, when connecting leads.
The hinge type flap provides a backup, or secondary, lock­
ing feature for the connector. They are used to improve the
connector reliability, by retaining the terminals, if the small
terminal lock tangs are not positioned properly.
Weather-Pack connections cannot be replaced with
standard connections. Instructions are provided with
Weather-Pack connector and terminal packages.
1. OPEN SECONDARY LOCK HINGE ON CONNECTOR
^
TERMINAL
3. CUT WIRE IMMEDIATELY BEHIND CABLE SEAL
4. REPLACE TERMINAL
A. SLIP NEW SEAL ONTO WIRE.
B. STRIP 5 m m (.2") OF INSULATION FROM WIRE.
C. CRIMP TERMINAL OVER WIRE AND SEAL.
5. PUSH TERMINAL AND CONNECTOR AND
ENGAGE LOCKING TANGS.
6
. CLOSE SECONDARY LOCK HINGE
Figure 20 — Weather-Pack Terminal Repair
3. TOOL J35689 OR BT 8446
4. CONNECTOR BODY
5. SEAL
A A
3
PUSH TO
^ ^ ^ RELEASE
TOOL J-28742 BT8234-A
WIRE
SEAL
7S3542-6E
4-18-86
■7S3213 6 E