Holiday Neptune 2004, Owner'S Manual

Page: 365 / 416

CHASSIS INFORMATION --- SECTION 10 • 365
NEPTUNE 2004
10
Caster Adjustments:
Caster is the fore and aft tilt (toward the front or rear of the motorhome) of the
steering kingpin as viewed from the side of the motorhome.
“ Positive ” caster is the tilt of the top end of the kingpin toward the rear of the
motorhome.
“ Negative ” caster is the tilt of the top end of the kingpin toward the front of
the motorhome.
Setting the caster angle more positive than
specified may result in excess steering effort
and/or shimmy. Decreasing the angle may result
in vehicle wander or poor steering return to center.
The caster angle is determined by the installed
position of the steer axle.
The steering system uses hydraulic power from the pump to provide full-time
hydraulic steering, instant response, and the ability to help absorb road shock at
the steering wheel. The steering system is comprised of the steering gear, steering
column, and steering linkages to the front axle.
When the operator turns the steering wheel the steering shaft causes hydraulic
power from the pump to move the sector shaft of the steering gear. This
movement of the sector shaft is then transferred to the front axle and tires through
the steering linkages.
STEERING
SYSTEM
090266
SPEC TOL
LEFT FRONT CAMBER 0.00° 0.40°
CASTER 3.50° 1.00°
TOE 0.03° 0.12°
RIGHT FRONT CAMBER -0.25° 0.40°
CASTER 3.50° 1.00°
TOE 0.03° 0.12°