HWH 2000 SERIES User manual

H
CORPORATION
H
W
R
OPERATOR’S MANUAL
DUMP
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
NOT IN
TRAVEL
EXCESS
SLOPE
PARK/
BRAKE
RAISE
AIR
HWH COMPUTERIZED LEVELING
TRAVEL
EMERGENCY
STOP
MODE
MODE
HWH COMPUTER-CONTROLLED
2000 SERIES LEVELING SYSTEM
FEATURING:
Touch Panel Leveling Control
Air Leveling (With Tag Axle)
R
www.hwh.com
Ph: 800/321-3494 (or) 563/724-3396 | Fax: [phone]
2096 Moscow Road | Moscow, Iowa 52760
(On I-80, Exit 267 South)
HWH CORPORATION
AP25488 ML25489/MP05.998H
08SEP03

CAUTION !
READ THE ENTIRE OPERATOR’S MANUAL BEFORE OPERATING.
MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH.
CAUSING INJURY OR DEATH.
CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER APPLICABLE SHOP SAFETY PRACTICES.
OPERATOR’S MANUAL
MP15.4501
30MAY01
BLOCK FRAME AND TIRES SECURELY BEFORE CRAWLING UNDER VEHICLE. DO NOT USE LEVELING JACKS OR AIR
SUSPENSION TO SUPPORT VEHICLE WHILE UNDER VEHICLE OR CHANGING TIRES. VEHICLE MAY DROP AND/OR
NEVER PLACE HANDS OR OTHER PARTS OF THE BODY NEAR HYDRAULIC LEAKS. OIL MAY PENETRATE SKIN
WEAR SAFETY GLASSES WHEN INSPECTING OR SERVICING THE SYSTEM TO PROTECT EYES FROM DIRT, METAL
IMPORTANT: IF COACH IS EQUIPPED WITH A ROOM EXTENSION, READ ROOM EXTENSION SECTION BEFORE
OPERATING LEVELING SYSTEM.
DO NOT OPERATE THE LEVELING SYSTEM OR USE THE DUMP OR RAISE BUTTONS IF THE VEHICLE IS MOVING
IN EXCESS OF 5 MPH.
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE LEVELING SYSTEM AND ROOM EXTENSION ARE BEING OPERATED.
HOW TO OBTAIN WARRANTY SERVICE
THIS IS NOT TO BE INTERPRETED AS A STATEMENT OF WARRANTY
HWH CORPORATION strives to maintain the highest level of
customer satisfaction. Therefore, if you discover a defect or
problem, please do the following:
[phone] OR [phone]. Give your name and
coach was purchased, or the date of system installation,
Notify the dealership where you purchased the
vehicle or had the leveling system installed. Dealership
management people are in the best position to resolve
the problem quickly. If the dealer has difficulty solving
the problem, he should immediately contact the Customer
Service Department, at HWH CORPORATION.
If your dealer cannot or will not solve the problem,
notify the Customer Service Department:
HWH CORPORATION 2096 Moscow Rd. Moscow IA. 52760
address, coach manufacturer and model year, date the
SECOND:
FIRST:
authorization of an independent service facility, to be
defective part, either by appointment at the factory or by the
CORPORATION will authorize repair or replacement of the
determine whether or not your claim is valid. If it is, HWH
HWH CORPORATION personnel will contact you to
during business hours (8:00 a.m. till 5:00 p.m. c.s.t.).
description of the problem, and where you can be reached
determined by HWH CORPORATION. All warranty repairs
must be performed by an independent service facility
authorized by HWH CORPORATION, or at the
HWH CORPORATION factory, unless prior written approval
has been obtained from proper HWH CORPORATION
personnel.

CONTROL IDENTIFICATION
"EMERGENCY STOP" BUTTON
"EXCESS SLOPE"
"NOT IN PARK"
RAISE RIGHT SIDE BUTTON
LOWER RIGHT SIDE BUTTON
LEVELING LIGHTS
(4 - Yellow)
WARNING LIGHTS
(4 - Red)
RAISE REAR BUTTON
LOWER REAR BUTTON
"AIR" (ON) BUTTON
DUMP LIGHT
"TRAVEL MODE" BUTTON
"TRAVEL MODE"
This button will lower the whole coach by
dumping air from the suspension system.
This button will raise the whole coach
by adding air to the suspension system.
ON if the leveling system
can NOT level the coach.
CONTROL BUTTONS
MP25.998D
31OCT02
CONTROL FUNCTIONS
LEVELING SYSTEM
"DUMP" BUTTON
RAISE LEFT SIDE
BUTTON
LOWER LEFT SIDE
BUTTON
RAISE FRONT BUTTON
LOWER FRONT BUTTON
Flashes when "RAISE" button is pushed.
"AIR" BUTTON:
"DUMP" BUTTON:
"RAISE" BUTTON:
UP ARROWS (RAISE BUTTONS):
DOWN ARROWS (LOWER BUTTONS):
IMPORTANT:
DUMP LIGHT:
RAISE LIGHT:
"EXCESS SLOPE" LIGHT:
WARNING LIGHTS:
LEVELING LIGHTS:
"NOT IN PARK/BRAKE" LIGHT:
LIGHT
LIGHT
Flashes when "DUMP" button is pushed.
This is the system active and automatic
operation button. It works if the ignition is in the "ON" position.
These momentary
buttons are used for manually operating the air leveling
systems. Sides or ends of the vehicle will lower while these
buttons are pushed.
One or two yellow lights can be on
indicating the side, end or corner of the coach is low.
Function with the ignition in the
"ON" position. ON when the LEVELING SYSTEM ACTIVE
LIGHT is ON. See PREPARATION FOR TRAVEL.
Read "DUMP AND RAISE FUNCTIONS"
before using the "DUMP" or "RAISE" buttons.
CAUTION!
HWH COMPUTERIZED LEVELING
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
NOT IN
PARK /
BRAKE
DUMP
RAISE
EMERGENCY
STOP
AIR
TRAVEL
TRAVEL
EXCESS
SLOPE
RAISE LIGHT
"RAISE" BUTTON
"EMERGENCY STOP" BUTTON: This button turns the
"RAISE" buttons. Pushing this button will NOT put the system
system OFF but does NOT control power to the "DUMP" or
"TRAVEL MODE" BUTTON:
LEVEL SYSTEM ACTIVE LIGHT: ON when the system is
active, and flashes during automatic leveling.
"TRAVEL MODE" LIGHT (GREEN):
INDICATOR LIGHTS
"TRAVEL MODE" BUTTON LIGHT (RED):
This button will put the Leveling
System in the TRAVEL mode. The ignition must be "ON" for
ON if the ignition is in
the "ON" position, the system is not being used, and there is
sufficient air pressure in the suspension.
"TRAVEL MODE" BUTTON
LIGHT (Red)
Light flashes
for 3 seconds after the "TRAVEL MODE" button is pushed.
the vehicle to return to proper ride height for traveling.
ON while the "AIR" button
is being pushed if the Park Brake is NOT set. The light will go
out when the "AIR" button is released.
HARD RESET SWITCH
(SEE HWH LIGHTED RESET SWITCH)
MASTER WARNING LIGHT
These momentary
buttons are used for manually operating the air leveling
systems. Sides or ends of the vehicle will raise while these
buttons are pushed.
ACTIVE LIGHT
LIGHT (Green)
MODE
MODE
in the TRAVEL mode.
See PREPARATION FOR TRAVEL.
ON any time the
MASTER WARNING LIGHT:
"TRAVEL" light is not ON, if the ignition is in the
"ON" position.

OPERATING PROCEDURES
MP35.200C
26JUL01
NETWORK INFORMATION
to start the function.
work ONLY if the the ignition is in the "ON" or "ACC" position
when the network is active. Certain functions and lights will
functions and indicator lights for the leveling system will work
when any room extension control panel key is "ON". Certain
any time the ignition is in the "ON" or "ACC" position or
system and HWH room extensions. The network is active
modular network. It controls all functions of the leveling
The HWH 2000 series CAN system is a computerized The network will stay active for 10 minutes after theNOTE:
GENERAL INSTRUCTIONS
Maintain adequate clearance in all directions for vehicles,
room extensions, doors, steps, etc.. Vehicle may move in any
direction due to raising or lowering of vehicle during leveling,
settling of vehicle, equipment malfunction, etc..
The MASTER WARNING LIGHT will be on if an air bag has
low pressure if the ignition is in the "ON" position.
CAUTION: DO NOT MOVE THE VEHICLE AT SPEEDS
The "DUMP" and "RAISE" buttons will function with the
leveling system and park brake off, if the ignition is in the
"ON" or "ACC" position or if the network is active. See AIR
DUMP AND RAISE FUNCTIONS section of this manual.
If the Park Brake is not set, the Leveling System cannot
be turned ON.
HWH LIGHTED RESET SWITCH
The HWH lighted reset switch is located on the vehicle dash.
If there is a failure at any time in the HWH CAN network, the
network will shut down. The leveling system will not operate.
If the ignition is off, no indicator lights will come on. If the
ignition is in the "ON" or "ACC" position, the lighted reset
switch and the MASTER WARNING Light will come on.
If the lighted reset switch is on, the switch must be pushed
before the leveling system can be operated.
If the lighted reset switch will not go out when pushed, there
is a problem with the central control module of the network
system. The Leveling System will not operate. The vehicle
suspension will return to the travel mode if the ignition key
IF THE IGNITION IS IN THE "ON" POSITION
AND THE LIGHTED RESET SWITCH IS ON, THE VEHICLE
CAN RETURN TO RIDE HEIGHT WITHOUT RELEASING
THE PARK BRAKE.
is in the "ON" position.
CAUTION:
IN EXCESS OF 5 MPH IF THE MASTER WARNING LIGHT
IS ON.
ignition key has been turned "OFF". If the leveling system
was turned "ON", the network will stay active for 10 minutes
after automatic leveling is complete or the system goes
"EXCESS SLOPE". If manual leveling buttons were used, the
network stays active for 10 minutes after the last manual
button is released.
PREPARATION FOR TRAVEL
Visually check that the vehicle is at the proper ride height for
The ignition must be in the "ON" position for the vehicle
suspension to be in the travel mode. Also the "TRAVEL
MODE" button must be pushed or the park brake released
for the suspension to be in the travel mode If the Leveling
System was used.
A lit "TRAVEL MODE" light indicates that the HWH Leveling
System is in the TRAVEL MODE. It does not indicate that
the suspension is at ride height or that the coach is ready
to travel.
traveling.
procedures when moving the vehicle with the suspension
Refer to "DUMP" and "RAISE" FUNCTIONS operating
"TRAVEL MODE" light off and turn the
Low air pressure can turn the green
and the "TRAVEL MODE" light must be ON.
Before traveling, the MASTER WARNING light must be off
PROPER RIDE HEIGHT BEFORE TRAVELING.
RESPONSIBILITY TO CHECK THAT THE VEHICLE IS AT
IT IS THE OPERATOR’S
NOT at the proper ride height.
MASTER WARNING light on.
NOTE:
CAUTION:

OPERATING PROCEDURES
AUTOMATIC AIR OPERATION
the ignition is in the "ON" or "ACC" position, the four red
will begin. The system will attempt to level the vehicle by
SYSTEM ACTIVE LIGHT will start flashing and air leveling
3. Press the "AIR" button a second time. The LEVELING
vehicle should not be moved when these lights are on.
that the height control valves have been locked out. The
WARNING lights on the panel will come on. This indicates
LEVELING SYSTEM ACTIVE LIGHT will glow steady. When
2. Press the "AIR" button once to enter the air mode. The
"NOT IN PARK/BRAKE" light will be on while the "AIR"
the panel will not turn on if the park brake is not set. The
With the ignition key in the "ON" or "ACC" position,
required for leveling.
will level with the engine shut off, however more time will be
This will provide a better air supply for leveling. The vehicle
Leaving the engine running during leveling is recommended.
turned on if the ignition is in the "ON" or "ACC" position.
and set the park brake. The air leveling system can only be
1. Place the transmission in the proper position for parking
ignition can be moved to the "OFF" position and the operation
use the "AIR" button. Once the operation is started, the
The ignition must be in the "ON" or "ACC" position to
button is being pushed.
NOTE:
NOTE:
leveling is complete.
When all four yellow LEVEL SENSING lights are out the
the vehicle will be raised by adding air to the air bags.
achieved by lowering the vehicle, the low side and/or end of
exhausting air from the air bags. If a level position is not
4. When all four yellow level lights are out, the LEVELING
SYSTEM ACTIVE LIGHT will stop flashing and start pulsating
dimly. The Leveling System is now in the SLEEP MODE.
NOTE: After the ignition and all room extension KEY
SWITCHES are turned OFF, the CAN Network stays active
for 10 minutes before shutting down. Leveling System touch
will continue.
Only one or two yellow LEVEL SENSING lightsNOTE:
may be ON at one time.
The vehicle’s engine/ignition may now be turned OFF.
panel lights will stay ON during this time and go out when
the CAN Network shuts down.
5. 30 minutes after the Leveling System enters the SLEEP
MODE, the computer will monitor the LEVELING SENSING
UNIT. If no leveling is needed, the computer will continue
to monitor the LEVELING SENSING UNIT every 30 minutes.
6. If the vehicle needs to be releveled, the CAN Network will
become active. The Leveling System touch panel lights will
come ON during the leveling procedure. The LEVELING
SYSTEM ACTIVE LIGHT will flash. One or two yellow
LEVELING LIGHTS will be ON. When the yellow LEVELING
LIGHTS are all out, the LEVELING SYSTEM ACTIVE LIGHT
will stop flashing and start pulsating dimly. The Leveling
System will remain in the SLEEP MODE with the computer
monitoring the LEVELING SENSING UNIT every 30 minutes,
releveling the vehicle as needed.
ignition is in the "ON" position.
STOP" button is pushed or the park brake is released, if the
7. The SLEEP MODE will continue until the "EMERGENCY
relevels the vehicle.
touch panel lights OFF. This happens every time the system
after releveling the vehicle and then shut down, turning the
The CAN Network will stay active for 10 minutes
NOTE:
is active until the vehicle is leveled with all yellow LEVEL
The "EXCESS SLOPE" light will be on whenever the network
will go out. The "EXCESS SLOPE" light will be on whenever
SLOPE" light will come on. The LEVEL LIGHT indicator light
minutes, if a LEVEL SENSING light is still on, the "EXCESS
vehicle for approximately 15 to 20 minutes. After the 15 to 20
The system will attempt to level the
the network is active.
indicator lights off.
EXCESS SLOPE:
If the Leveling System is in the SLEEP MODE
when the Network shuts down, the computer will stay ON.
The Leveling System touch panel lights will all be OFF,
but the Leveling System will still be in the SLEEP MODE.
NOTE:
TAG AXLE DUMP
The tag axle dump-switch is supplied by Monaco. This is a
IMPORTANT: Refer to Monaco for the proper use of the Tag
Dump feature.
The Tag Dump switch will work only with the ignition switch in
the "ON" position and the leveling system panel off.
NOTE: If the Tag Dump switch is in the dump position and the
ignition key is turned on (with the leveling system panel off) the
tag axle air bags will go into the dump mode.
two position switch with one position for "TRAVEL" and one
position for "TAG DUMP".
11AUG03
MP35.206C

OPERATING PROCEDURES
MP35.207C
02AUG01
MANUAL AIR OPERATION
NOTE: The ignition must be in the "ON" or "ACC" position to
use the "AIR" button. Once the operation is started, the
ignition can be moved to the "OFF" position and the operation
1. Place the transmission in the proper position for parking
and set the park brake. The air leveling system can only be
turned on if the ignition is in the "ON" or "ACC" position.
Running the vehicle engine during leveling is recommended.
This will provide a better air supply for leveling. The vehicle
will level with the engine shut off, however more time will be
required for leveling.
NOTE:
2. Press the "AIR" button once to enter the air mode. The
LEVELING SYSTEM ACTIVE LIGHT indicator light will glow
steady. When the ignition is in the "ON" or "ACC" position,
the four red WARNING lights on the panel will come on. This
indicates that the height control valves have been locked out.
The vehicle should not be moved when these lights are on.
NOTE:
If the "NOT IN PARK/BRAKE" light is on, the leveling
system cannot be turned on.
3. The vehicle can now be leveled using the RAISE (up arrow)
and LOWER (down arrow) buttons on the right half of the
panel in conjunction with the yellow LEVEL indicator lights.
Any side to side leveling should be done before leveling
the vehicle front to rear. Try leveling the vehicle by lowering
the opposite side or end. If a level position is not achieved
use the RAISE (up arrow) button to raise the low side or end.
The yellow LEVEL indicator light indicates that side or end is
low. When all yellow lights are out the vehicle is level.
If the "DUMP" or "RAISE" buttons are pushed while
manually leveling the vehicle with air and the ignition is in the
"ON" position, the system will latch into the dump or raise
mode until the "EMERGENCY STOP" button is pushed or the
ignition is turned off.
4. Turn the ignition to the "OFF" position.
5. Turn the system off.
will continue.
The "DUMP" and "RAISE" functions are provided for operator
convenience for purposes such as dumping air suspension
when parked in the wind, or raising or lowering the vehicle to
avoid obstacles. The "DUMP" and "RAISE" buttons will function
with the system on or off.
1. Leave the engine running if the "RAISE" function is to be
used. The park brake does not have to be set and the system
does not have to be on to use the "RAISE" or "DUMP" functions.
2. Press and hold the "RAISE" or "DUMP" button as desired
to raise or lower the vehicle. The system will remain in the
"RAISE" or "DUMP" mode as long as the button is held down.
When the button is released the system will automatically turn
turn off. If the ignition is in the "ON" position the suspension will
return to travel height.
3. If desired for clearing an obstacle, the vehicle may be moved
while in the "RAISE" or "DUMP" mode for a short distance at
a slow speed. Remember the vehicle will return to travel height
when the "RAISE" or "DUMP" button is released and the leveling
system is off.
ally turn off when the button is released. If the ignition is in
the "ON" position the suspension will return to travel height.
CAUTION: REREAD CAUTIONS ON THE FIRST PAGE
OF THIS MANUAL. THE VEHICLE MAY DROP OR RAISE
AND/OR MOVE FORWARD OR BACKWARD WITHOUT
WARNING CAUSING INJURY OR DEATH.
DO NOT OPERATE THE VEHICLE OVER 5 M.P.H. UNLESS
AIR SUSPENSION IS AT THE PROPER HEIGHT FOR TRAVEL.
AIR DUMP AND RAISE FUNCTIONS
IMPORTANT: "DUMP" and "RAISE" functions will automatic-
OPERATIONAL CHECK
Review the operator’s manual and check that all functions
and lights work correctly.
"NOT IN PARK/BRAKE" Check: Set hand/auto park brake.
Set the transmission in the recommended position for
parking the vehicle. Turn the ignition on. Push the
"AIR" button on the touch panel. Release the hand/auto park
CAUTION: THE VEHICLE MAY MOVE FORWARD OR
BACKWARD WHEN THE PARK IS RELEASED.
NOTE: If any checks reveal any problems or if there are
other problems or questions, consult a qualified rv repair
center, your vehicle or coach manufacturer or HWH
Corporation for service or assistance.
Check that the "NOT IN PARK/BRAKE" light comes ON.
Reapply the park brake. The "NOT IN PARK/BRAKE" light
should go out.
brake.

07MAY09
MP45.271M
MP85.6148
± 1 inch side to side on a 36 foot vehicle. Typical leveling results will be better.
The sensing unit has an accuracy tolerance of ± 5.4 inches front to rear and
SENSING UNIT ACCURACY TOLERANCE
SENSING UNIT ADJUSTMENT
to the drawing below. The Sensing Unit is adjusted by turning
while making the A-C adjustment.
adjustments first, then hold the adjustment nut from moving
Control Box. If two LED’s are on, it is best to make the B-D
be a problem with the Sensing Unit or the mounting of the
be turned more than 3/4 turn to turn the LED out, there may
to be turned more than 1/2 flat or the adjustment screw has to
screw will turn out LED’s A and C. If the adjustment nut has
the adjustment nut to turn out LED’s B and D. The adjustment
MAY BE DIFFERENT
LED’S - LOCATION
BOX WALL
CONTROL
A
C
TOP VIEW - SENSING UNIT
D B
There are four LED’s on the Sensing Unit, A,B,C and D. Refer
Control Box is mounted to the power unit/valve assembly.
The Sensing Unit is mounted inside the Control Box. The
level the vehicle until the bubble is centered.
level, ignoring the yellow LEVEL lights on the Touch Panel,
that is to be level. Using the Leveling System and the bubble
the freezer floor or upon whichever surface within the vehicle
Level the vehicle by placing a bubble level in the center of
lights are on. Level the vehicle according to the yellow
"tweaking" process until the system levels the vehicle
touch panel. Recheck with a level. Repeat the
relevel the vehicle using the yellow level lights on the
the front up more. Again, unlevel the vehicle then
the front yellow light to stay on slightly longer to bring
instructions for LED’s A, B, C, and D. This will allow
the OPPOSITE direction that is given in the above
Move the adjustment for that light very, very, slightly in
which sensing unit light is the front light, A-B-C or D.
yellow level light is turning off too soon. Determine
the vehicle, the front is still low. This means the front
Example: After the initial adjustment and releveling
sensing unit, ignoring the LED’s on the sensing unit.
yellow level lights go out, instead just "tweak" the
needed, DO NOT try to adjust the sensing unit until the
LEVEL lights. Recheck the level. If more adjustment is
SIDE VIEW - CONTROL BOX
NUT (5/16" OLD) - (1/2" NEW)
ADJUSTMENT
NUT (7/8" or 3/4")
(OLD STYLE)
ADJUSTMENT
properly.
vehicle to an unlevel position so one or two yellow
IMPORTANT: When all 4 LED’s are off, move the
If LED (D) is lit: Turn the adjustment nut CLOCKWISE
If LED (B) is lit: Turn the adjustment nut COUNTER
If LED (C) is lit: Turn the adjustment screw CLOCKWISE
If LED (A) is lit: Turn the adjustment screw COUNTER
NOTE: If opposing LED’s are lit, there is a problem with
until the LED is off.
CLOCKWISE until the LED is off.
until the LED is off.
CLOCKWISE until the LED is off.
the Sensing Unit.
ADJUSTMENT SCREW SCREW (Phillips or 1/4")
ADJUSTMENT
ADJUSTMENT NUT (5/16" OLD) - (1/2" NEW)
ADJUSTMENT
NUT (7/8" or 3/4")
(OLD STYLE)
end wrenches of 7/8, 3/4, 1/2, 5/16 or 1/4 sizes will be needed.
needed. A Phillips screw driver or sockets w/driver or box
Touch Panel, manual adjustments to the Sensing Unit are
properly adjusted. If there are yellow LEVEL lights lit on the
are no yellow lights lit on the Touch Panel, the sensing unit is
With the vehicle level according to the bubble level, if there
SENSING UNIT MAINTENANCE/SERVICE

AIR LINE CONNECTION DIAGRAM
FOUR POINT AIR LEVELING WITH TAG AXLE
FRONT
HEIGHT CONTROL
VALVE (3-PLACES)
V
C
SUSPENSION BAG
AIR
BAG
AIR
FRONT
H
ASSEMBLY
MANIFOLD
REAR
C
HVHCV
AIR
BAG
AIR
BAG
SUSPENSION
DRIVE
AIR
CANISTER
ASSEMBLY
MANIFOLD
TAG
FRONT
AIR TANK
AUX. 12V
AIR
COMPRESSOR
AIR TANK
REAR
1/4" LINE
1/4" LINE
1/4" LINE
1/4" LINE
AIR
SUPPLY
3/8" LINE
3/8" LINE
3/8" LINE
REGULATOR
LINE FROM
HEIGHT
CONTROL
VALVE
TO AIR SUPPLY
AIR PRESSURE
REGULATOR
REGULATOR
3/8" LINE
3/8" LINE
3/8" LINE
3/8" LINE
1/4"
LINE
3/8" LINE
1/4"
LINE 1/4"
LINE
3/8"
LINE
LINES TO
AIR BAGS
05DEC06
MP75.010C
TAG

MP75.020C
02AUG01
EXH EXH
REAR MANIFOLD ASSEMBLY
EXHEXH
RR HCVLR HCV
LOWER
RAISE
TRAV.
LOWER
RAISE
TRAV.
COMPRESSOR
DIAGRAM
SEE AIR
RAISE RAISE
FRONT MANIFOLD ASSEMBLY
LOWER
TRAV.
LOWER
TRAV.
(HCV)
CONTROL VALVE
FRONT HEIGHT
EXH
TRAV.
RAISE
TAG MANIFOLD ASSEMBLY
LOWERLOWER
EXH
RAISE
TRAV.
EXH
TAG
AIR
BAG
BAG
AIR
BAG
AIR
EXISTING
SUPPLY
BAG
AIR AIR
BAG
AIR
BAG
BAG
AIR AIR
BAG
AIR
BAG
AIR
BAG
TAG
DRIVER
FRONT
EXH EXH
REGULATOR
FRONT
AIR
TANK
TANK
AIR
REAR
85 PSI PRESSURE SWITCH
AIR PRESSURE
REGULATOR
TAG AXLE
AIR SUPPLY
REGULATOR
FRONT
AIR LEVEL SCHEMATIC - MONACO
4-POINT LEVELING WITH AIR COMPRESSOR
PRESSURE SWITCHES FRONT AND REAR DRIVE AXLE
PRESSURE
SWITCH
20 PSI (2)
SWITCH
20 PSI (2)
PRESSURE

MP75.030C
02AUG01
FRONT AIR SOLENOID MANIFOLD CONNECTIONS
6 VALVE WITH TWO PRESSURE SWITCHES
ABBABABABABABABABA
BA BA BA BA BA BA BA BA
RS
TRAVEL
LS
LOWER
RS
PSW
RS
RAISE
RS
LOWER
LS
RAISE
LS
TRAVEL
LS
PSW
SYS
PSW
RS
TRAVEL
LS
LOWER
RS
PSW
RS
RAISE
RS
LOWER
LS
RAISE
LS
PSW
LS
TRAVEL
REAR
LEFT SIDE RIGHT SIDE
PRESSURE
SWITCH-20 PSI
LINE TO LF
AIR BAG
3.400"
PRESSURE
SWITCH-20 PSI
AIR BAG
LINE TO RF
AIR BAG
LINE TO LF LINE TO RF
AIR BAG
EXHAUST
PORT EXHAUST PORT
LINES FROM HEIGHT
CONTROL VALVES -
TWO MAY BE TEE’D
TOGETHER IF ONE
HCV IS USED.
AIR
SUPPLY
RIGHT RAISE
SOLENOID VALVE (LEFT
VALVE NOT SHOWN)
VALVE NOT SHOWN)
SOLENOID VALVE (LEFT
RIGHT LOWER
VALVE NOT SHOWN)
SOLENOID VALVE (LEFT
RIGHT TRAVEL
IMPORTANT: LEFT AND RIGHT
CONNECTIONS MUST BE MAINTAINED
AS SHOWN. GROUND SUPPLY WIRES
FOR AIR PRESSURE SWITCHES AND
AIR SOLENOID VALVES CANNOT
BE INTERCHANGED.
CHECK
VALVE (2)
RIGHT SIDE
VIEW
VIEW
MOUNTING HOLES
LINE FROM HEIGHT
CONTROL VALVE (MAY BE
TEED TOGETHER IF ONE
HCV IS USED)
LINE TO AIR BAGS
(2 LEFT AND RIGHT)
EXHAUST PORTS
(2 LEFT AND RIGHT)
PRESSURE SWITCH
20 PSI (2 LEFT AND RIGHT)
LINE TO AIR BAGS
(2 LEFT AND RIGHT)
AIR SUPPLY