© 2021 Copyright Newmar Corporation. All rights reserved. For the most up-to-date version of this content, and for more product-specific information, please refer to Newgle.
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CHASSIS
Source(s): HWH Computer-Controlled 725 Series Leveling System Operator’s
Manual (ML55155, Rev. 09NOV15)
Product(s): This source is associated with more than one product. Refer to Newgle
for more information about the product(s) offered for your coach’s model year.
Jacks will extend (or retract) in pairs to raise (or
lower) a side or end of the vehicle. Any jack not
used for leveling can be extended to the ground.
This provides additional stability against wind and
activity in the vehicle. Jacks used to stabilize the
vehicle after leveling is complete should lift the
vehicle slightly after touching the ground.
NOTICE
!
Do not operate the vehicle over uneven ground
such as ramps, speed bumps, curbs, etc. with
the air springs deflated. Doing so may lead to air
bag separation from the piston, preventing the
suspension air springs from re-inflating.
NOTICE
!
Never exhaust air from the suspension while
driving. When the air is exhausted, the suspension
will not absorb road shocks, and components may
be damaged.
NOTICE
!
Do not continue to push an Extend button for more
than ten (10) seconds after that pair of jacks are fully
extended.
IMPORTANT
!
If a red warning light and buzzer come on while
traveling, the jacks should be checked as soon as a
safe parking location is found.
IMPORTANT
!
Manual Hydraulic Operation
Place transmission in the recommended position for
parking the vehicle, and set the parking brake. Turn the
ignition to the “Accessory” position.
Place pads under the jack feet if the ground will not
support the vehicle on the jacks.
Push the “Dump” button. Wait until all air is exhausted
from the vehicle suspension.
The vehicle may be leveled using the manual Extend (up
arrow) buttons on the right half of the panel. If a yellow
Level Sensing light is on, that side, end or corner of the
vehicle is low. It is best to level the vehicle side to side
first, if needed, before front to rear.
When leveling is completed, turn the ignition switch to the
“Off” position.
Fluid Level Maintenance
The hydraulic leveling system was filled with Dexron/
Mercon transmission fluid during production. Periodically
check the fluid levels in the leveling system when using
the breather cap/dipstick. Remove any debris from
the dipstick before reinserting it into the reservoir. The
reservoir level should remain between the oil level
grooves when the jacks are retracted. Add fluid as
needed. Change the fluid if it becomes contaminated.
Suspension Dump Switch Operation on Freightliner
M2 Super C Chassis
This article is intended to clarify the operation (dump and inflate procedure) of the Freightliner Air Bag Dump Switch located
on the dash of Super Star and Supreme Aire coaches after the HWH leveling System is installed during the Newmar
production process.
The suspension dump switch is a two-position guarded
rocker switch. It allows the air in the vehicle air
suspension to be quickly exhausted, lowering the rear
of the vehicle. This makes it easier to connect to, or
disconnect from, a trailer.
If the HWH leveling jacks have been deployed, the air bags
will be dumped as part of this process. The dash suspension
switch will be inoperable until the HWH leveling jacks are
stored and the air bags have re-inflated as part of the auto-
store process. The dash suspension dump switch should not
be used for any part of the coach leveling process.
NOTE FROM NEWMAR
Summary of Contents for Kountry Star 2022
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