MCi 102D Series Maintenance Manual page 20

102D SERIES MAINTENANCE MANUAL
NOTE: The stop bolt should NOT touch the beam. it
should always have a minimum clearance of 0.125
inches (3 mm) as shown in Figure 42, below.
FIGURE 42. Minimum stop bolt clearance
1. Put a 1/8 inch (3 mm) spacer between the stop bolt
and the boss on the axle beam.
2. Turn the steering wheel until the boss on the axle
beam touches the spacer in front of the stop bolt.
Measure the angle (Figure 43).
FIGURE 43. Spacer placement
3. If the maximum
specifications, correct it. Adjust the pressure relief.
4. When a maximum turn angle is correct (51
o
front axle, 11 for the trailing axle):
a. Loosen the stop bolt jam nut (Figure 43).
b. Insert a 1/8 inch (3 mm) spacer and adjust the
stop bolt.
01-FRONT AXLE
angle does not meet
o
for the
c. T ighten the jam nut to 65 to 85 lb ft (68 to 101
N m).
Pressure relief adjustment (Setting maximum
turn angle)
The pressure relief in the power steering system stops
or reduces the forces applied to the axle when the wheel
is moved into the full turn position.
Check the pressure relief if the steering arm is
damaged or the power steering gear is serviced.
To adjust the pressure relief, use hydraulic pressure
relief in the power steering gear.
Hydraulic pressure relief in the steering gear
NOTE: The stop should always have a 1/8 inch (3 mm)
clearance between the stop bolt and the axle beam
boss.
Hydraulic steering gears with poppet valves are
adjusted with a spacer between the stop bolt in the
knuckle and the boss on the axle beam. The poppet
valves are adjusted to stop or reduce steering forces from
the 1/8 inch (3 mm) specified distance between the beam
boss and the stop bolt (Figure 44).
FIGURE 44. Pressure relief
LUBRICATION
Lubricant specifications
Lubricate king pins, bushings, ends of tie rod
assemblies, ball studs of drag link and wheel bearings
with the following lubricant:
Chassis grease, 6% 12 hydroxy lithium stearate
grease, NLGI Grade No. 1, Rockwell specification
0 617 A or equivalent, or
Chassis Grease, 8% 12 hydroxy lithium stearate
grease, NLGI Grade No. 2, Rockwell specification 0 617B
or equivalent.
August 2000
Date
1B 20
Page