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6 Cam Brake Assembly and Installation
30 ArvinMeritor Maintenance Manual MM-0361 (Revised 04-10)
Manual Steering
Adjust both the right- and left-hand knuckle steering stops to touch
the housing when the maximum turning angle specified by the
vehicle manufacturer is reached. Lock the steering stop in position
with the jam nut tightened to the correct torque. Refer to Section 8.
Figure 6.24.
Figure 6.24
Power Steering
CAUTION
Meritor does not permit any power steering system that does
not have a pressure relief or positive mechanical stop to be set
before the maximum turn angle is reached. The power units
must be stopped before the axle stop touches the housing to
prevent stress to the axle components. Damage to
components can result.
Mechanical Relief
Vehicles with mechanical Pitman arm stops or cylinder stops must
be adjusted to end the travel of the Pitman arm or cylinder
0.125-inch (3.18 mm) before the steering stop screw touches the
housing. Maximum turn angle is then controlled by the arm or
cylinder stop, not the axle stop. Make the adjustments for both
full-right and full-left turns. Figure 6.25.
Figure 6.25
Hydraulic Relief
Hydraulic steering gears or cylinders with poppet valves must be
adjusted while a 0.250-0.1875-inch (6.35-4.76 mm) spacer is held
between the housing and stop screw. The poppet valves must be
adjusted to permit pressure bypass at this position with the spacer
in place for full-right and full-left turns. During this setting the
steering gear pressure must be at a maximum 600 psi (41.4 bar).
Figure 6.26.
Figure 6.26
Wheel Toe-In
Toe-in must be checked and adjusted on all front drive axles after
the axle is installed in the vehicle. Figure 6.27.
Figure 6.24
MAXIMUM
TURNING
ANGLE FULL TURN
POSITION
STOP
SCREW AND
JAM NUT 4000795a
Figure 6.25
Figure 6.26
MAXIMUM
TURNING
ANGLE FULL TURN
POSITION
STOP
SCREW AND
JAM NUT 4000795b
0.125" (3.18 MM)
CLEARANCE
MAXIMUM
TURNING
ANGLE FULL TURN
POSITION
STOP
SCREW AND
JAM NUT 4000795c
0.250-0.875"
(6.350-4.762 MM)
SPACER
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