Vent Line Service - Hummer H1 Service Manual

5-134 Transmission/Transfer Case

VENT LINE SERVICE

The transmission, transfer case, front and rear hubs, and winch
are all connected to a common vent line system (Figure 5-34).
The main vent lines are plastic while lines from the hubs to the
tee connections consist of rubber hoses. Brass tee fittings are
used at each vent line junction.
The transmission and transfer case vent lines and fittings are all
serviceable parts.
TRANSMISSION
VENT LINES
TEE FITTING
LINE FROM
TRANSFER CASE
LINE FROM
REAR HUBS
___________________________________________
LINE TO FRONT
HUBS AND WINCH
TEE FITTING
Figure 5-34: Transmission Vent Line
Vent lines or fittings can be replaced individually. It is not nec-
essary to replace all of the lines if only one section is damaged.
In cases where plastic vent line is supplied in bulk quantity, the
required length can be cut to size with a fine tooth hacksaw
blade. Diagonal pliers or similar cutting implements are not
recommended.
If a plastic line proves difficult to install, a small amount of liq-
uid soap can be used as a lubricant. Do not use any other prod-
uct to ease line assembly and installation.
ENGINE
MOUNTING
BRACKET
VENT LINE
FRAME RAIL
TEE FITTING
ENGINE
MOUNTING
BRACKET
®