Chrysler laser 1990 Technical Information Manual page 104

Reservoir
chamber /
Reservoir
chamber
Pressure
chamber
- -
ENGINE
Operation of the Auto Tensioner
WHEN THE BELT TENSION HAS INCREASED
tensioner arm
The
arrow @,
by
chamber to build up.
piston, which causes a small amount of oil to gradually leak
through the clearance between the piston and cylinder into
the reservoir chamber. This causes the piston to move
slowly
in the direction shown by arrow @.
balances the spring tension, which determines the load,
i.e., tension, applied to the belt.
WHEN THE BELT TENSION HAS DECREASED
spring tension.
chamber becomes lower than that in the reservoir cham-
ber.
(5) The piston stops moving when the belt tension balances
the spring tension, which determines the tension applied to
the belt.
pushes the piston in the direction shown
hydraulic
causing the pressure in the pressure