HWH SYSTEM CONTROL User manual

OPERATOR’S MANUAL
ML46343/MP04.5650
16MAR10
BI-AXIS Computerized Hydraulic Leveling
Multiple Rooms
FEATURING:
HWH SYSTEMS CONTROL MODULE
R
HWH SYSTEMS CONTROL
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
LIGHT
STATUS
AUTO STORE
HYD LEVEL
MANUAL
HOME
R
RESET
STOP
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
CONTRAST
CORPORATION
W
HH
R
ROOM
HYD LEVEL
AUTOMATIC STEP /
STP COVER
R
Hydraulic Step and Step Cover
Dual Direction Hydraulic Storage Slide Out
Auxiliary Hand Pump
PAGE
HOME

WARNING !
READ THE ENTIRE OPERATOR MANUAL BEFORE OPERATING.
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 MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH.
WEAR SAFETY GLASSES WHEN INSPECTING OR SERVICING THE SYSTEM TO PROTECT EYES FROM DIRT, METAL
CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER APPLICABLE SHOP SAFETY PRACTICES.
OPERATOR’S MANUAL
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE DUMPING AIR FROM THE VEHICLE’S SUSPENSION.
DO NOT MOVE THE VEHICLE IF THE VEHICLE IS NOT AT THE PROPER RIDE HEIGHT. CONTACT MANUFACTURER
IMPORTANT: IF COACH IS EQUIPPED WITH A ROOM EXTENSION, READ ROOM EXTENSION SECTION BEFORE
OPERATING LEVELING SYSTEM.
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.
04MAR10
MP14.0002
TECHNICAL SERVICE FOR MOVING THE VEHICLE WHEN NOT AT THE PROPER RIDE HEIGHT.
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE OPERATING LEVELING SYSTEM OR ROOM EXTENSIONS.

CONTROL IDENTIFICATION
MP24.4000
17MAY10
HOME PAGE
"HOME" BUTTON: Pushing the "HOME" button at any time
will return the control panel to HOME PAGE 1 EXCEPT
when the system is actively leveling the vehicle in an
"LIGHT" BUTTON: Pushing the "LIGHT" button will turn the
back light off. The panel will appear dark but the system will
remain on. Push the "LIGHT" button to turn the back light on.
"STOP" BUTTON: Pushing the "STOP" button will turn the
system off halting any active function. The LCD screen will
go dark. If the ignition is on, the Master Warning Light will
will come on.
automatic mode.
"RESET" BUTTON: This button will reset the SYSTEM
CONTROL PANEL if the panel ceases to function due to a
malfunction. The "RESET" button will also reactivate the
CONTROL PANEL if the "STOP" button is pushed at ANY
"AUTOMATIC HYD LEVEL" BUTTON: This button will
start the automatic hydraulic leveling procedure and bring
up the AUTOMATIC HYD LEVEL screen.
"MANUAL HYD LEVEL" BUTTON: This button will put the
system in the manual hydraulic leveling mode and bring up
the HYD LEVEL page for manual hydraulic leveling control.
"AUTO STORE" BUTTON: This button will start the
automatic retract sequence for the jacks when manual or
NOTE: See individual function pages in the OPERATING PROCEDURES section
of this manual for detailed information about specific screen buttons.
PANEL BUTTONS
SCREEN BUTTONS AND LIGHTS
time. The ignition key must be on for the "RESET" button
to work.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
HWH SYSTEMS CONTROL
HOME
CAUTION!
LIGHT
STATUS
AUTOMATIC
HYD LEVEL
HYD LEVEL
AUTO STORE
MANUAL
R
STOP
CONTRAST
STP COVER
ROOM
STEP /
RESET
automatic hydraulic leveling has been used.
This light will flash as "STORING""AUTO STORE" LIGHT:
When the "AUTO STORE" button is pushed.
If Hydraulic Leveling was used, this light will flash while the
jacks are retracting plus 1 minute after all the jack down
indicators are off.
PANEL
BUTTON
BUTTON
SCREEN
HOME
PAGE
"STATUS" BUTTON: This button will bring up the "STATUS"
page. The "STATUS" page will have jack pressure and
warning switch information.
SCREEN BUTTONS AND LIGHTS CONTINUED
"CONTRAST" BUTTON: This button will bring up a page
that will allow you to change the contrast of the screen.
"ROOM" BUTTON: This button will bring up a room
selection screen. A room control screen will be accessed
from the room selection screen.
"STEP / STP COVER" BUTTON: This button will bring up
the step and step cover control screen.

CONTROL IDENTIFICATION
MP24.4001
17MAY10
STATUS PAGE
HWH SYSTEMS CONTROL
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
LIGHT
HOME
R
RESET
STOP
SCREEN TEXT
STATUS PAGE
RR HYD PRESSURE SWITCH
LR HYD PRESSURE SWITCH
RF HYD PRESSURE SWITCH
LF HYD PRESSURE SWITCH
RR JACK WARNING SWITCH
LR JACK WARNING SWITCH
RF JACK WARNING SWITCH
LF JACK WARNING SWITCH
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON - Jack has load on it, it is supporting weight.
OFF - Jack has no load on it, It is not supporting weight.
NOTE: This "STATUS PAGE" is specific to HWH hydraulic leveling systems ONLY.
"LR HYD PRESSURE SWITCH"
"RF HYD PRESSURE SWITCH"
"LF HYD PRESSURE SWITCH"
"RR JACK WARNING SWITCH"
"LR JACK WARNING SWITCH"
"RF JACK WARNING SWITCH"
"LF JACK WARNING SWITCH"
"RR HYD PRESSURE SWITCH"
ON - Jack is extended approximately 1 inch
OFF - Jack is "FULLY" retracted
PARK BRAKE OFF
EXCESS SLOPE OFF
"PARK BRAKE"
ON - Park brake is set
OFF - Park brake is not set
ON - Leveling system is in an excess slope situation
OFF - Leveling system is not in an excess slope situation
"EXCESS SLOPE"

CONTROL FUNCTIONS
CONTROL IDENTIFICATION
MP24.4566
16MAR10
OFF
ON
RETRACT
EXTEND
ROOM CONTROL
SWITCHES
KEY SWITCH
The KEY SWITCH controls power to the
ROOM CONTROL SWITCH. When the KEY SWITCH is in
the "ON" POSITION the rooms can be operated, and the key
cannot be removed. When the KEY SWITCH is in the "OFF"
position the rooms cannot be operated, and the key can be
The ROOM CONTROL SWITCH
is a two position momentary switch. Pressing the switch in
the EXTEND POSITION will extend the room. Pressing the
switch in the RETRACT POSITION will retract the room.
Releasing the ROOM CONTROL SWITCH will halt the
operation of the room.
ROOM OPERATOR’S PANEL
KEY
KEY SWITCH: ROOM CONTROL SWITCH:
OPERATE ONE
ROOM AT A TIME
CORPORATION
W
KEEP PEOPLE AND OBSTRUCTIONS CLEAR OF ROOM WHEN OPERATING.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING.
HYDRAULIC ROOM EXTENSION
CAUTION!
HH
R
EXTEND
RETRACT
removed.

OPERATING PROCEDURES
GENERAL INSTRUCTIONS
The Hydraulic Leveling system, cannot be activated
MP34.0901
16MAR10
Turn the ignition to the "ON" or "ACC" position to turn the
SYSTEM CONTROL panel on.
Push the "HOME" button to return the SYSTEM CONTROL
panel to the HOME PAGE. Any function that is to be operated
from the SYSTEM CONTROL panel can only be accessed
from the HOME PAGE. Individual screen functions are
Push the "STOP" button to stop any function. Pushing the
"STOP" button will turn the SYSTEM CONTROL panel off.
if the park brake is not set.
Maintain adequate clearance in all directions for vehicle,
room extensions and generator slide, doors, steps, etc..
Vehicle may move in any direction due to raising and
lowering of vehicle during leveling, settling of vehicle,
equipment malfunction etc..
explained in this section.
The SYSTEM CONTROL screen will exhibit messages to
the operator when there is a problem or malfunction in the
system or when a function cannot be used. The "HOME"
button must be pushed to acknowledge the message. The
malfunction or situation must be corrected before proceeding.
APPEARS ON THE CONTROL SCREEN, IT IS THE
CAUTION:ANYTIME A "WARNING" MESSAGE
OPERATORS RESPONSIBILITY TO CORRECT THE
PROBLEM TO ENSURE SAFE OPERATION OF THE
VEHICLE AND IT’S SYSTEMS.
PREPARATION FOR TRAVEL
1. When either leveling system has been used, push the
"AUTO STORE" button to retract the jacks and/or return
the system to the traveling mode. It is a good idea to
always, push the "AUTO STORE" button after starting the
engine. This will ensure thermal expansion of the fluid in
the hydraulic leveling system will not cause a jack down
indicator to come on while traveling.
2. Check that all four leveling jacks are fully retracted
to the STORE position.
3. If the flashing "STORE" light does not shut off after
three to four minutes there may be a malfunction. Bring
up the correct STATUS page to determine which jack
may not be retracted. The jacks may take longer to
retract in cold weather.
4. The SYSTEM CONTROL PANEL should be
on when traveling.
5. Check that the vehicle is at the proper ride height
for traveling.
CAUTION:DO NOT MOVE THE VEHICLE WHILE
THE LEVELING JACKS ARE STILL IN CONTACT WITH
THE GROUND OR IN THE EXTEND POSITION. THIS
VEHICLE IS EQUIPPED WITH STRAIGHT-ACTING JACKS.
MOVING THE VEHICLE WITH THE LEVELING JACKS
EXTENDED CAN CAUSE SEVERE DAMAGE TO THE
JACKS AND OR THE VEHICLE AND CREATE A DRIVING
HAZARD. DO NOT RELY SOLELY UPON WARNING
LIGHTS. IT IS THE OPERATOR’S RESPONSIBILITY TO
CHECK THAT ALL THE JACKS ARE FULLY RETRACTED
INTO THE STORE/TRAVEL POSITION AND THE VEHICLE
IS AT THE PROPER RIDE HEIGHT FOR TRAVELING.
CONTACT MANUFACTURER TECHNICAL SERVICE
BEFORE MOVING A VEHICLE THAT IS NOT AT
PROPER TRAVEL HEIGHT.
Place a pad or block under each jack if the ground is too
soft to support the vehicle or when parking on soft asphalt.

OPERATING PROCEDURES
MP34.2900
16MAR10
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LIGHT RESET
HOME STOP
HWH SYSTEMS CONTROL
R
1. Turn the ignition key on and set the park brake.
are out the vehicle is level.
corner of the vehicle is low. When all level sensing lights
lights. A lit level sensing light indicates that side, end or
The system will level the vehicle according to level sensing
be started when the "HOME" page is being displayed.
NOTE: Automatic leveling and automatic store can only
LEVELING SYSTEM.
OF THE VEHICLE WHILE OPERATING THE HYDRAULIC
CAUTION:KEEP PEOPLE AND OBJECTS CLEAR
AUTOMATIC HYDRAULIC LEVELING
OFF
ON SENSING
LIGHT (4)
LEVEL
BUTTON
AUTO STORE
HOME PAGE
HOME PAGE
AUTOMATIC HYD
LEVEL BUTTON
The ignition key must be on and the park brake must be set
to use automatic hydraulic leveling. If the ignition and/or the
park brake are not on, a message will appear on the screen
when the "AUTOMATIC HYD LEVEL" button if pushed.
Push the "HOME" button and correct the problem before
pushing the "AUTOMATIC HYD LEVEL" button again.
AUTOMATIC
OFF
ON
DOWN
LIGHT (4)
WARNING
JACK
The Jack Down Warning Lights will come on as there
respective jack extends approximately 1 inch.
NOTE: Suspension air must be dumped before
automatic leveling is started. Refer to the vehicle
manufacturer for suspension air dump instructions.
2. Dump the suspension air.
3. At this time, the operator may want to check the jacks.
Place a pad under each jack at this time, if necessary.
4. When the suspension air is completely exhausted, push
the AUTOMATIC HYD LEVEL button on the HOME page.
The AUTOMATIC HYD LEVEL page will appear.
5. The system will extend the jacks as necessary according
to the level sensing lights starting with any lit side lights.
6. When all the level lights are out, the system will extend
any remaining jacks to the ground to stabilize the vehicle.
Stabilizing jacks should lift the vehicle slightly,
approximately 3/4 inch.
7. When the leveling sequence is completed a message
confirming this will appear on the screen.
8. Push the "HOME" button and turn the ignition off
or continue with other functions.
EXCESS SLOPE: Excess slope is two jacks extending fully
with out turning that level sensing light out. In the event the
jacks are unable to level the vehicle, the control screen will
display a message stating the attempt to level was
unsuccessful. One or more jacks may not be extended.
Push the "HOME" button to return to the HOME page.
Use "AUTO STORE" to retract the jacks. Move the vehicle
to a more level position or level the vehicle as close as
possible according to the MANUAL HYD LEVEL section.
HYD
LEVEL

OPERATING PROCEDURES
MP34.3200
16MAR10
RAISE
RAISE
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LIGHT RESET
HOME STOP
HWH SYSTEMS CONTROL
R
LOWER
LOWER
RAISE
LOWER
LOWER
RAISE
MANUAL HYDRAULIC LEVELING
LEVELING SYSTEM.
OF THE VEHICLE WHILE OPERATING THE HYDRAULIC
CAUTION:KEEP PEOPLE AND OBJECTS CLEAR
ON SENSING
LIGHT (4)
LEVEL
OFF
3. At this time, the operator may want to check the jacks
LEVEL
HYD
ON
OFF
JACK DOWN
WARNING
LIGHT (4)
HOME PAGE
AUTO STORE
BUTTON
LEVEL BUTTON
MANUAL HYD
HOME PAGE
pushing the "AUTOMATIC HYD LEVEL" button again.
Push the "HOME" button and correct the problem before
when the "AUTOMATIC HYD LEVEL" button if pushed.
park brake are not on, a message will appear on the screen
to use automatic hydraulic leveling. If the ignition and/or the
The ignition key must be on and the park brake must be set
NOTE: Manual leveling and automatic store can only
be started when the "HOME" page is being displayed.
Level the vehicle according to level sensing lights. A lit
level sensing light indicates that side, end or corner of the
vehicle is low. When all level sensing lights are out the
vehicle is level.
The "RAISE" buttons are used to extend the jacks and raise
the vehicle. The "LOWER" buttons are used to retract the
jacks. Each set of buttons operate a pair of jacks, front, rear
left or right side. The RAISE and LOWER buttons are
momentary buttons. The jacks will extend or retract while
the buttons are being pushed.
The Jack Down Warning Lights will come on as there
respective jack extends approximately 1 inch.
1. Turn the ignition key on and set the park brake.
2. Push the "MANUAL HYD LEVEL" button on the
"HOME" page.
and place a pad under each jack at this time, if necessary.
4. Dump air from the vehicle suspension at this time.
Refer to the vehicle manufacturer for air dump instructions.
5. Push and hold the "RAISE" buttons as necessary to
raise the vehicle according to lit LEVEL SENSING lights.
If a side LEVEL SENSING light is on, extend that pair of
jacks to turn the side light out first before leveling the
vehicle from front to rear.
6. Any jack(s) not used for leveling should be extended to
the ground to stabilize the vehicle. Use the front and/or
rear "RAISE" button to accomplish this. Jacks extended to
stabilize the vehicle should lift the vehicle at least 3/4 of an
inch.
IMPORTANT: DO NOT continue to push a "RAISE"
button for more than 10 seconds after that pair of
jacks are fully extended.
7. When the leveling and stabilizing procedure is complete,
push the "HOME" button and turn the ignition off or proceed
with other functions.
IMPORTANT: Although the jacks can be retracted using
the "LOWER" buttons the "AUTO STORE" button on the
"HOME" page should be used to retract the jacks.
Always use the "AUTO STORE" button when
preparing to travel.

CONTROL IDENTIFICATION
MP34.3370
16MAR10
JACK RETRACTION
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
HWH SYSTEMS CONTROL
HOME
CAUTION!
LIGHT
STATUS
AUTOMATIC
HYD LEVEL
HYD LEVEL
STORING
MANUAL
R
STOP
CONTRAST
STP COVER
ROOM
STEP /
RESET
HOME
PAGE
HOME PAGE
AUTO STORE
BUTTON
Jack retraction is achieved from the "HOME" page. The
"AUTO STORE" button can be used with the ignition and
park brake on or off as long as the control panel screen is
on at the "HOME" page.
CAUTION:THE OPERATOR MUST BE SURE THAT
THERE ARE NO OBJECTS UNDER THE VEHICLE AND
THAT ALL PEOPLE ARE CLEAR OF THE VEHICLE.
1. Turn a room panel key or ignition key on to turn the
CONTROL PANEL on. If preparing to travel, start the
engine.
2. Push the "AUTO STORE" button. The "AUTO STORE"
light will flash as "STORING".
3. As each jack retracts fully, it’s jack down indicator will
go out. (The panel does not show this). One minute after
all the jacks are fully retracted, the "STORING" light will
stop flashing and revert to a solid "AUTO STORE" light.
THE STORE/TRAVEL POSITION AND THE VEHICLE IS AT
STORE/TRAVEL POSITION
CHECK THAT ALL JACKS ARE FULLY RETRACTED INTO
WARNING LIGHTS. IT IS THE OPERATOR’S RESPONSIBILITY TO
CREATE A DRIVING HAZARD. DO NOT RELY SOLELY UPON
SEVERE DAMAGE TO THE JACKS AND OR THE VEHICLE AND
WITH THE LEVELING JACKS EXTENDED CAN CAUSE
WITH STRAIGHT-ACTING JACKS. MOVING THE VEHICLE
OR IN THE EXTEND POSITION. THIS VEHICLE IS EQUIPPED
LEVELING JACKS ARE STILL IN CONTACT WITH THE GROUND
DO NOT MOVE THE VEHICLE WHILE THE
THE PROPER RIDE HEIGHT FOR TRAVELING.
CAUTION:
JACK POSITIONS
EXTEND POSITION
4. Check that the jacks are retracted and the vehicle is
at the proper ride height for traveling before proceeding.

OPERATING PROCEDURES
MP34.4251
16MAR10
ROOM 1
OPERATION
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LIGHT RESET
HOME STOP
HWH SYSTEMS CONTROL
R
OPERATION
ROOM 4
ROOM SELECTION
1. Push the "ROOM" button on the "HOME" page
to access the ROOM SELECTION page.
2. Push the corresponding button to select a room that is to
be operated. A ROOM OPERATION page will be displayed.
The park brake must be set to access the ROOM
SELECTION page from the home page. If the park brake
is not set, a message will appear when the ROOM button
on the "HOME" page is pushed. The operator is directed
to push the "HOME" button and correct the problem. If the
If an attempt to level the vehicle in an automatic leveling
mode fails putting the system in an EXCESS SLOPE
situation, rooms cannot be extended. Individual ROOM
OPERATION pages can be accessed from the ROOM
SELECTION page, but when the EXTEND button is pushed,
a message will appear directing the operator to push the
HOME button and resolve the EXCESS SLOPE situation.
Rooms can be retracted when the leveling system is in an
EXCESS SLOPE situation.
NOTE: See "EXCESS SLOPE" in the AUTOMATIC HYD or
AIR procedures for detailed explanation of "EXCESS SLOPE".
OPERATION
ROOM 2 OPERATION ROOM 3
park brake is released while the ROOM SELECTION page
is on the screen, the screen will return to the HOME PAGE.
NOTE: The two rear rooms may be operated from a two
rocker switch panel at the rear of the vehicle. The
system LCD panel does not have to be on to use the
rocker switch panel.
NOT
USED

MP34.431
5
06MAY1
9
ROOM 1 EXTEND/RETRACT/STATUS
WARNING: OPERATING A ROOM WITH ANY ROOM LOCKING,
CLAMPING OR MANUAL RETRACTING DEVICES ATTACHED OR
ENGAGED CAN CAUSE PERSONAL INJURY AND VEHICLE DAMAGE
IT IS THE OPERATOR’S RESPONSIBILITY TO ENSURE THAT ALL ROOM
ALL ROOM LOCKING, CLAMPING OR MANUAL RETRACTING DEVICES
ARE DETACHED OR DISENGAGED BEFORE OPERATING THE ROOM.
1. Unlock all room-locking devices.
NOTE: If a MANUAL RETRACT device is attached to
the room remove it before extending the room.
WARNING:KEEP PEOPLE AND OBSTRUCTIONS
CLEAR OF ROOM WHEN OPERATING.
NOTE: Make sure there is adequate clearance to fully
extend the room.
2. To extend the room, press and hold the EXTEND ROOM
button until the room is fully extended. The EXTEND ROOM
LIGHT will flash while the button is being pushed.
NOTE: Hold the switch to "EXTEND" three or four seconds after the room
is fully extended. This assures proper pressurization of the cylinders.
During normal operation of the room, do not reverse direction of the
room until the room is fully extended. If necessary, the direction of
the room may be reversed, but watch for binding of the room. If the
direction of the room has been reversed, DO NOT re-extend the room
IMPORTANT:
If either side of the room stops moving, release the room control
switch immediately. DO NOT force the room. DO NOT reverse direction
NOTE: Releasing the ROOM CONTROL SWITCH will
halt the operation of the room.
Do not hold the ROOM CONTROL SWITCH in the "EXTEND"
position for more than ten seconds after the room is fully extended or stops
moving.
ROOM RETRACT PROCEDURE
retracting the hydraulic leveling system.
It is recommended to retract room extensions before
light will flash while the button is being pushed.
pressurization of the cylinders.
has been fully extended.
after the room is fully retracted. This assures proper
Hold the switch to "RETRACT" three or four second
s
of the room, do not reverse direction of the room until
the room is fully retracted. If necessary, the direction
of the room may be reversed, but watch for binding of
the room. If the direction of the room has been
reversed, DO NOT retract the room until the room
CLEAR OF ROOM WHEN OPERATING.
button until the room is fully retracted. The RETRACT ROOM
1. To retract the room press and hold the RETRACT ROOM
WARNING:
NOTE:
During normal operation
KEEP PEOPLE AND OBSTRUCTIONS
Do not hold the ROOM CONTROL SWITCH
in the "RETRACT" position for more than ten seconds
after the room is fully retracted or stops moving.
If either side of the room stops moving, release the
room control switch immediately. DO NOT force the
room. DO NOT reverse direction of the room, contact
HWH Customer Service for assistance 1-800-321-3494.
NOTE: Releasing the ROOM CONTROL SWITCH will
3. If the room will not retract see the MANUAL ROOM
IMPORTANT: Room-locking devices should be locked
RETRACT PROCEDURE.
while traveling.
2. Engage all room-locking devices.
halt the operation of the room.
NOTE:
IMPORTANT:
RETURN TO ROOM PAGE BUTTON: This button will
return the screen to the ROOM SELECTION page.
NOTE: If the park brake is released while operating a
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LIGHT
RETRACT ROOMEXTEND ROOM
RESET
(ROOM LOCATION)
ROOM # OPERATION
RETURN TO
ROOM PAGE
HOME
HWH SYSTEMS CONTROL
R
STOP
OPERATING PROCEDURES
until the room has been fully extended.
of the room, contact HWH Customer Service for assistance 1-800-321-3494.
IMPORTANT: DO NOT USE A ROOM EXTENSION
SUPPORT WHEN THE VEHICLE IS SUPPORTED BY
THE LEVELING SYSTEM.
room, the screen will return to the home page.
Refer to vehicle manufacturer for proper sequence of
room extension and leveling system operation.

OPERATING PROCEDURES
ROOM EXTEND PROCEDURE
1. Unlock all room-locking devices to include travel
the room remove it before extending the room.
WARNING:
extend the room.
3. To extend the room, press and hold the appropriate
ROOM CONTROL SWITCH in the "EXTEND" position
until the room is fully extended.
halt the operation of the room.
4. Turn the room control panel KEY SWITCH to
KEEP PEOPLE AND OBSTRUCTIONS
CLEAR OF ROOM WHEN OPERATING.
IMPORTANT: Do not use a room extension support
when the vehicle is supported by the leveling system.
NOTE: If a MANUAL RETRACT WINCH is attached to
NOTE: Make sure there is adequate clearance to fully NOTE: Releasing the ROOM CONTROL SWITCH will
2. Turn the room control panel KEY SWITCH to
the "ON" position.
after the room is fully extended or stops moving.
in the "EXTEND" position for more than ten seconds
of the room, do not reverse direction of the room until
after the room is fully extended. This assures proper
Hold the switch to "EXTEND" three or four seconds
pressurization of the cylinders.
Do not hold the ROOM CONTROL SWITCHIMPORTANT:
NOTE:
During normal operation
the room is fully extended. If necessary, the direction
of the room may be reversed, but watch for binding of
the room. If the direction of the room has been
reversed, DO NOT re-extend the room until the room
has been fully retracted.
If either side of the room stops moving, release the
room control switch immediately. DO NOT force the
room. DO NOT reverse direction of the room, contact
HWH Customer Service for assistance 1-800-321-3494.
MP34.431
6
06MAY1
9
the "OFF" position.
DISENGAGED BEFORE OPERATING THE ROOM.
RETRACTING DEVICES ARE DETACHED OR
ALL ROOM LOCKING, CLAMPING OR MANUAL
OPERATOR’S RESPONSIBILITY TO ENSURE THAT
PERSONAL INJURY AND VEHICLE DAMAGE. IT IS THE
DEVICES ATTACHED OR ENGAGED CAN CAUSE
ROOM LOCKING, CLAMPING OR MANUAL RETRACTING
WARNING: OPERATING A ROOM WITH ANY
clamps/locks supplied by manufacturers other than HWH.
NOTE: The park brake must be set to operate the rooms.
WITH ROCKER SWITCH CONTROL PANEL
Refer to vehicle manufacturer for proper sequence of
room extension and leveling system operation.

OPERATING PROCEDURES
2. Turn the room control panel KEY SWITCH to
3. To retract the room press and hold the appropriate
ROOM CONTROL SWITCH in the "RETRACT"
position until the room is fully retracted.
halt the operation of the room.
4. Turn the room control panel KEY SWITCH to
IMPORTANT: Room-locking devices should be locked
while traveling.
WARNING:
CLEAR OF ROOM WHEN OPERATING.
KEEP PEOPLE AND OBSTRUCTIONS
5. If the room will not retract see the MANUAL ROOM
RETRACT PROCEDURE.
NOTE: Releasing the ROOM CONTROL SWITCH will
HWH Customer Service for assistance 1-800-321-3494.
room. DO NOT reverse direction of the room, contact
room control switch immediately. DO NOT force the
If either side of the room stops moving, release the
after the room is fully retracted or stops moving.
in the "RETRACT" position for more than ten seconds
Do not hold the ROOM CONTROL SWITCH
reversed, DO NOT retract the room until the room
the room. If the direction of the room has been
of the room may be reversed, but watch for binding of
the room is fully retracted. If necessary, the direction
of the room, do not reverse direction of the room until
During normal operation
Hold the switch to "RETRACT" three or four seconds
after the room is fully retracted. This assures proper
has been fully extended.
pressurization of the cylinders.
IMPORTANT:
NOTE:
MP34.451
0
07MAY1
9
1. The park brake must be set. The room will not
operate if the park brake is not set.
the "ON" position.
the "OFF" position.
ROOM RETRACT PROCEDURE
WITH ROCKER SWITCH CONTROL PANEL
room extension and leveling system operation.
Refer to vehicle manufacturer for proper sequence of

MP34.5701
16MAR10
STEP AND STEP COVER OPERATION
CLEAR OF STEP AND STEP COVER WHEN OPERATING.
WARNING:KEEP PEOPLE AND OBSTRUCTIONS
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LIGHT
STEP COVERSTEP COVER
RESET
EXTEND STEP
HOME
HWH SYSTEMS CONTROL
R
STOP
OPERATING PROCEDURES
RETRACTEXTEND
RETRACT STEP
Push the "STEP / STP COVER" button on the "HOME" page
to access the STEP AND STEP COVER OPERATION page.
The park brake must be set to access the STEP AND STEP
COVER OPERATION page from the home page. If the park
brake is not set, a message will appear when the "ROOM"
button on the "HOME" page is pushed. The operator is
directed to push the "HOME" button and correct the problem.
If the park brake is released while the STEP / STEP COVER
operation page is on the screen, the message to push the
"HOME" button will appear if a step or step cover control
button is pushed.
STEP / STEP COVER
STEP OR STEP COVER - EXTEND PROCEDURE
NOTE: Make sure there is adequate clearance to fully
extend the step or step cover.
To extend the step or step cover, press and hold the
appropriate control switch in the "EXTEND" position.
When the step or cover is fully extended, release the
control switch.
HOME PAGE
STEP / STEP
COVER BUTTON
IMPORTANT: If the pump is running, DO NOT hold the
control switch in the "EXTEND" position for more than
ten seconds after the STEP or STEP COVER is fully
extended or stops moving. DO NOT FORCE THE STEP
or STEP COVER.
NOTE: Releasing the control switch will halt the
operation of the STEP or STEP COVER.
operation of the STEP or STEP COVER.
NOTE: Releasing the control switch will halt the
retracted or stops moving. DO NOT FORCE THE STEP
ten seconds after the STEP or STEP COVER is fully
control switch in the "RETRACT" position for more than
IMPORTANT: If the pump is running, DO NOT hold the
To retract the step or step cover, press and hold the
appropriate control switch in the "RETRACT" position.
When the step or cover is fully extended, release the
control switch.
or STEP COVER.
STEP OR STEP COVER - RETRACT PROCEDURE
CLEAR OF STEP AND STEP COVER WHEN OPERATING.
KEEP PEOPLE AND OBSTRUCTIONSWARNING:
MANUAL STEP COVER RETRACT PROCEDURE:
See hydraulic connection diagram - step cover manifold
and cylinder.
MANUAL STEP RETRACT PROCEDURE: Refer to the
hand pump operating page or open both solenoid valves
for the step then fold the step and push the assembly back
into the vehicle.
OUTSIDE STEP CONTROL SWITCH
There is a step control switch on the outside of the vehicle,
close to the entrance door.
The park brake must be set to use the switch. The LCD
panel and the vehicle ignition do not have to be on to use
this switch.
CLEAR OF STEP AND STEP COVER WHEN OPERATING.
KEEP PEOPLE AND OBSTRUCTIONS
WARNING:
NOTE: Make sure there is adequate clearance to fully
extend the step.
Refer to the "STEP or STEP COVER EXTEND / RETRACT
PROCEDURE for operating instructions.

MP34.7002
16MAR10
OPERATING PROCEDURES
DUAL DIRECTION STORAGE SLIDE OUT OPERATION
The HWH SLIDE OUT is operated by toggle switches inside
the compartment doors. There is a switch on the driver’s
side and passenger’s side of the compartment.
The park brake must be set to use the STORAGE
SLIDE OUT. The system control module and the
vehicle ignition do not have to be on.
extend the storage slide out.
NOTE: Make sure there is adequate clearance to fully
WARNING:
CLEAR OF THE STORAGE SLIDE OUT WHEN OPERATING.
KEEP PEOPLE AND OBSTRUCTIONS
The passenger side control toggle switch must be used to
extend the storage slide out the passenger’s side. The
driver side control toggle switch must be used to extend
the storage slide out the driver’s side.
If the storage slide is extended (either side) either control
switch can be used to retract the storage slide.
EXAMPLE 1: The storage slide is extended out the
passenger side of the vehicle. Push and hold the driver’s
side control switch to "RETRACT". The storage slide will
move to the retracted position and stop.
EXAMPLE 2: The storage slide is extended out the
passenger side of the vehicle. Push and hold the driver’s
side control switch to "EXTEND". The storage slide will
retract into the vehicle then extend out the driver’s side
as long as the control switch is held to the extend position.
IMPORTANT: DO NOT hold the control switch in the
"EXTEND" or "RETRACT" position more than 10
seconds after the storage slide is fully extended,
retracted or stops moving. DO NOT FORCE THE
STORAGE SLIDE.

OPERATING PROCEDURES
MP34.9901
23SEP13
AUXILIARY HAND PUMP OPERATION
The auxiliary hand pump can be used to extend or retract
the landing gear, jacks or room extensions anytime the pump
HITCHED TO THE TOW VEHICLE BEFORE OPENING
SUPPORTED BY AUXILIARY STANDS OR SECURELY
ANY VALVES.
WARNING: THE VEHICLE SHOULD BE
IMPORTANT: FOLLOW THE "SET UP" AND
"PREPARATION FOR TRAVEL" PROCEDURES
WHEN USING THE AUXILIARY HAND PUMP.
AUXILIARY
HAND PUMP
HANDLE
The auxiliary hand pump is a two stage pump that will produce
enough pressure to extend the landing gear and lift the vehicle
as well as retract the landing gear. When operating the auxiliary
pump to lift the vehicle or when the jacks are fully retracted, the
pump handle will seem to "snap" as the pump goes to the
second stage. The pumping action will be easier at first as the
second stage starts to create more pressure.
To operate the auxiliary hand pump, open the appropriate
solenoid valve. Insert the hand pump handle into the handle
receptacle and move the handle in an up and down motion.
The auxiliary hand pump may work easier if only one
valve is open at a time. Be careful to not twist the
vehicle if only one solenoid valve is open.
It is recommended to operate the auxiliary hand
pump occasionally to check it’s operation.
FRONT VIEW END VIEW
CLOSE
OPEN
OPERATING
MOTION
will not function.
RELEASE CAM
IMPORTANT: ONLY MOVE THE RELEASE CAM
IN THE DIRECTION SHOWN. MOVING THE CAM
IN THE OPPOSITE DIRECTION CAN DAMAGE
THE VALVES.
RET
JACK
EXT
P42088
LEFT
RET
P42089
RIGHT
EXT JACK
EXT
B-STYLE
RET
P42091
ROOM
TOP VIEW
NOTE: If a room cannot be retracted using the
auxiliary hand pump, see "MANUAL ROOM
RETRACTION PROCEDURES".
NOTE: The hand pump will swivel to any position
which will ease the operation of the hand pump.
number of functions and the items controlled by each pair of
valves one each for the extend and retract procedures. The
NOTE: Each hydraulic function requires a pair of solenoid
solenoid valves will very for each system. The diagrams shown
on this page represent a (3) function system of (2) jacks and
(1) room as indicated by the labels shown in FIG 1. Use the
labels specific to your system when following these procedures.
FIG 1
ROOM
B-STYLE
JACK
RIGHT
EXT
RET
RET
P42089
EXT
P42091
IF A LARGE VALVE IS USED, OPEN THE VALVE
BY REMOVING THE PLASTIC PLUG THEN TURN
THE 1/4" VALVE RELEASE NUT NO MORE THAN
2 FULL TURNS COUNTER CLOCKWISE.
PLUG
PLASTIC
Room control solenoid valves may be located at the
synchronizing cylinder, not on the pump manifold.

MAINTENANCE
MP44.0009
15JAN10
PRIMING THE HAND PUMP
JACK CONTROL HYDRAULIC SWITCH
NEUTRAL POSITION
To prime the hand pump, it will be necessary to remove a
hose from one of the jacks. One of the front jacks would be
HAND PUMP
HANDLE
MOTION
OPERATING
If the system has Double-Acting cylinders on the front,
remove the rod end hose from either of the front jacks.
Place the end of the hose in a bucket. Make sure the
tank is at least half full. Pump the hand pump until a
healthy flow of oil is coming from the hose.
Reattach the hose and retry the hand pump. Repeat the
procedure if the hand pump does not move the jacks.
TANK
best, but use the easiest hose to get to.
IMPORTANT: DO NOT ALLOW THE FLUID LEVEL IN
THE TANK TO LOWER MORE THAN 1 INCH BEFORE
ROD END
CAP END
ADDING FLUID.
If the system has only Single-Acting jacks with return springs,
remove the easiest hose to access and place the end in a
bucket. Using the release cam, manually open the EXTEND
solenoid valve for that jack (if equipped with solenoid valves)
or move the jack control hydraulic switch to "EXTEND" for
that jack. Make sure the tank is at least half full. Pump the
hand pump until a healthy flow of fluid comes from the hose.
procedure if the hand pump does not move the jacks.
Reattach the hose and retry the hand pump. Repeat the
THE TANK TO LOWER MORE THAN 1 INCH BEFORE
IMPORTANT: DO NOT ALLOW THE FLUID LEVEL IN
ADDING FLUID.
EXTEND
POSITION
TO
CLOSED
HANDLE
HAND PUMP
TANK
EXT
RET
EXTEND SOLENOID VALVE
SINGLE ACTING JACKS
(CAP END HOSE -
EXT
EXT
EXT
EXT
RET
RET
RET
RET
OPEN CLOSE
TO
VALVE RELEASE CAM
SHOWN IN
POSITION OPEN
POSITION
SHOWN IN
(CAP AND ROD END HOSES)
DOUBLE-ACTING JACKS
NO ROD END HOSE -
WITH RETRACT SPRINGS)

MAINTENANCE
In general, to insure the smooth operation of the leveling
system, it is a good idea to occasionally check the individual
leveling units to prevent problems. This is especially true
under the unusual conditions stated in the following:
If driving conditions are unusually muddy, the units may
become caked or clogged with mud. This condition may
hamper the proper operation of the leveling system. This
problem may be prevented or remedied by cleaning off each
leveling unit if they become excessively muddy.
In wet or icy weather leveling units may become encrusted
with ice. This may cause the leveling system to function
improperly. To eliminate this problem, periodically check the
leveling units and break loose any ice which may be causing
Do not move the trailer while the leveling units are still in
All major components of the system can be replaced
with rebuilt units or can be sent to HWH CORPORATION to
be rebuilt, when the system is out of warranty.
contact with the ground. Visually check to see if the leveling
units have returned to the STORE/TRAVEL position before
moving the trailer.
MP44.001
7
13NOV1
7
UNUSUAL CONDITIONS
NOTE:
OIL LEVEL
improper operation.
NOT IN PARK/BRAKE CHECK
should now function.
button and set the park brake. The leveling system
LEVEL" button is pushed. Release the "AUTO LEVEL"
BRAKE" indicator light should come on while the "AUTO
Push the "AUTO LEVEL" button. The "NOT IN PARK/
WARNING:
CANNOT ROLL FORWARD OR BACKWARD.
THE COACH WHEELS SECURELY SO THE COACH
to the "ACC" or "ON" position. Release the parking brake.
Apply the brake so the coach cannot roll. Turn the ignition
WHEN MAKING THIS CHECK, BLOCK
qualified RV repair center, your vehicle or coach
or if there are other problems or questions, consult a
If any of the above checks or inspections reveal a problem
manufacturer, or HWH CORPORATION
for service or repair.
WINTER WEATHER DRIVING
components, such as HWH jacks.
have dried. This can facilitate corrosion of metallic
Anti-icing / deicing agents when splashed on your vehicle,
continue to absorb moisture from the air even after they icing / deicing agents, thoroughly wash jacks with warm
To help reduce the corrosion of jacks after exposure to anti
-
soapy water.
cap before removing.
and steps should be fully retracted before checking fluid
breather cap. Clear any dirt away from the breather / filler
assembly. The oil level is checked and filled through the
level. The oil reservoir is part of the pump / manifold
Any HWH hydraulic equipment, including jacks, slide-outs
servicing of the coach.
All maintenance should be done as part of the normal
there is an oil leak in the system.
purchased and then once every two years. More often if
The oil level should be checked when the vehicle is first should be between the bottom of the dipstick and the
reservoir. Most breather caps have a dipstick. Fluid level
The oil level should be within one inch of the top of the
emergency Dexron automatic transmission fluid can be used
.
Dexron automatic transmission fluid contains red dye
and can cause staining should a leak occur. DO NOT USE
brake fluid or hydraulic jack fluid. Use of these can damage
HWH Specialty Hydraulic Oil is recommended. In an
NOTE: Overfilling the tank can cause leakage of oil
through the breather cap.
center mark.
FLUID:
NOTE:
seals.

01MAR10
MP44.1500
± 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
ADJUSTMENT SCREW
SENSING UNIT ADJUSTMENT
to the drawing below. The Sensing Unit is adjusted by turning
ADJUSTMENT
NUT (7/8" or 3/4")
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
(OLD STYLE)
A
C
TOP VIEW - SENSING UNIT
D B
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
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
SCREW (Phillips or 1/4")
ADJUSTMENT
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 NUT (5/16" OLD) - (1/2" NEW)
SENSING UNIT MAINTENANCE/SERVICE
MI15.4550