HWH 725 SERIES User manual

OPERATOR’S MANUAL
ML49233/MP04.3380
23SEP11
Touch Panel Leveling Control
BI-AXIS Hydraulic Leveling
FEATURING:
HWH CORPORATION
(On I-80, Exit 267 South)
2096 Moscow Road | Moscow, Iowa 52760
Ph: 800/321-3494 (or) 563/724-3396 | Fax: [phone]
www.hwh.com
725 SERIES LEVELING SYSTEM
HWH COMPUTER-CONTROLLED
R
Straight-Acting Jacks
AP49234
R
RETRACT
EXTEND
HWH COMPUTERIZED LEVELING
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
CANCEL
STORE
AUTO
AUTO
LEVEL
TRAVEL
BRAKE
MODE
WARNING!
EXCESS
SLOPE
NOT IN
PARK/
R
MANUAL
RETRACT
EXTEND
CORPORATION
W
HH
R
Auxiliary Hand Pump
Canopy Lift

WARNING !
READ THE ENTIRE OPERATOR’S MANUAL BEFORE OPERATING.
MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH.
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE LEVELING SYSTEM IS IN USE.
CAUSING INJURY OR DEATH.
CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER APPLICABLE SHOP SAFETY PRACTICES.
OPERATOR’S MANUAL
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
MP14.0020
23SEP11
IMPORTANT: IF VEHICLE IS EQUIPPED WITH A ROOM EXTENSION, READ ROOM EXTENSION SECTION BEFORE
OPERATING LEVELING SYSTEM.
WHILE HITCHING OR UNHITCHING, AVOID AREAS WHERE BODY MAY BE CRUSHED BY SUDDEN DROPPING OR SLIDING
OF THE TRAILER.
DO NOT LIFT TOW VEHICLE WITH 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.
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE CANOPY IS RAISING OR LOWERING.

MP24.3156
23SEP11
CONTROL IDENTIFICATION
725 SERIES LEVELING SYSTEM
COMPUTER-CONTROL
RETRACT
EXTEND
HWH COMPUTERIZED LEVELING
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
"EXCESS SLOPE"
Indicator light
"AUTO LEVEL"
AUTO LEVEL/STORE
"CANCEL" Button
"NOT IN PARK"
Indicator light
Indicator light
"TRAVEL MODE"
Indicator light
Indicator light
AUTO LEVEL
"AUTO STORE"
Button
STORE
Button
RAISE LEFT SIDE
Manual button
LOWER LEFT SIDE
Manual button
STORE
AUTO
CANCEL
AUTO
LEVEL
TRAVEL
BRAKE
MODE
WARNING!
EXCESS
SLOPE
NOT IN
PARK/
R
LOWER FRONT
Manual button
RAISE FRONT
Manual button
JACK DOWN
Indicator light
RAISE RIGHT SIDE
Manual button
LOWER RIGHT SIDE
Manual button
LEVEL SENSING
Indicator light
(4) yellow
RAISE REAR
Manual button
LOWER REAR
Manual button
MANUAL
RETRACT
EXTEND (4) red
CONTROL FUNCTIONS
the automatic store function.
STORE INDICATOR LIGHT:
during the automatic leveling function.
AUTO LEVEL INDICATOR LIGHT:
INDICATOR LIGHTS
start the automatic leveling function.
They are functional only when the ignition is in the "ON"
yellow level indicators are jacks down WARNING lights.
will retract their respective jack pairs to lower the vehicle.
extend their respective jack pairs to lift the vehicle.
RETRACT BUTTONS (DOWN ARROWS):
EXTEND BUTTONS (UP ARROWS):
CONTROL BUTTONS
WARNING LIGHTS:
four jacks at the same time.
"AUTO STORE" BUTTON:
"AUTO LEVEL" BUTTON:
any leveling system operation.
"CANCEL" BUTTON:
This light will flash during
This light will flash
The four red lights surrounding the
Push this button any time to
These buttons will
Push this button to retract all
Push this button to stop
These buttons
The four yellow indicating lights are
level sensing indicators. When a yellow light is on, it
indicates that its side, end, or corner of the vehicle is low.
No more than two lights should be on at the same time.
When all four yellow LEVEL lights are out, the vehicle is
This indicator light will be on
This indicator will light
This indicator will light when
INDICATOR LIGHTS (CONTINUED)
when the ignition is on, when the jacks are retracted and
when the hand/auto brake is not set and the "AUTO LEVEL"
the leveling system cannot level the vehicle.
"TRAVEL MODE" LIGHT:
there are no red WARNING lights on.
button is being pushed.
"NOT IN PARK/BRAKE" LIGHT:
"EXCESS SLOPE" LIGHT:
LEVELING LIGHTS:
or "ACC" position, the system is on, and the jacks are
extended 1/4 to 1/2 inch.
level.

CONTROL FUNCTIONS
CONTROL IDENTIFICATION
MP24.5681
23SEP11
CORPORATION
H
CAUTION!
CLEAR OF ROOM WHEN OPERATING.
UNDERSTAND OPERATOR’S MANUAL BEFORE
USING. KEEP PEOPLE AND OBSTRUCTIONS
HYDRAULIC ROOM EXTENSION
OFF
ON
RETRACT
H
W
R
EXTEND LIFT CONTROL
SWITCH
KEY SWITCH
The KEY SWITCH controls power to the LIFT
CANOPY LIFT OPERATOR’S PANEL
KEY
KEY SWITCH: LIFT CONTROL SWITCH:
The LIFT CONTROL SWITCH is
a two position momentary switch. Pressing the switch in the
EXTEND POSITION will raise the canopy. Pressing the switch
in the RETRACT POSITION will lower the canopy. Releasing
the LIFT CONTROL SWITCH will halt the operation of the lift.
CONTROL SWITCH and the leveling system touch panel.
When the KEY SWITCH is in the "ON" POSITION the lift and
the leveling system can be operated, and the key cannot be
removed. When the KEY SWITCH is in the "OFF" position
the lift and the leveling system cannot be operated, and the
key can be removed.

MP25.9995
14MAR12
CONTROL IDENTIFICATION
PUMP RUN TIME
SYSTEM VARIATIONS FOR PUMP RUN TIME
Contact HWH corporation to get specific information about the system in this vehicle.
No matter what HWH system is on the vehicle, the pump should not be ran for more than four minutes
(3" motors) or six minutes (3.7" or 4.5" motors) without allowing the pump motor to cool for thirty minutes.
Continuous operation of the pump motor without allowing the motor to cool can damage the pump motor.
Some HWH systems are equipped with a lighted reset switch.
If the processor turns the pump off because the run time has
been exceeded, the light in the reset switch will turn on. The
With some systems, when the processor has turned the pump off because the run time has been exceeded, power
to the HWH system must be turned off and back on before the system will operate. With motorized vehicles, turn the
ignition off and back on. With non-motorized vehicles, turn the master power switch for the HWH system off and back
DO NOT continue without allowing the pump motor to cool for thirty minutes.
When operating some leveling systems manually or operating the room extensions, the pump will turn off and back
on while pushing the control button when the pump run time has been exceeded.
the pump motor to cool for thirty minutes.
Some systems can be turned back on immediately after the processor turns the pump off.
back on or run the pump without allowing the pump motor to cool for thirty minutes.
Some systems with rooms run the rooms separate from the system processor. These systems do not monitor pump
run time when operating the rooms.
pump motor to cool for thirty minutes.
The HWH systems with a computer processor monitor the pump run time and will turn the pump off if the run time exceeds a
specified time. This time can vary with different systems. Due to available electronics or system design, the pump run time
programs will also vary. Leveling systems and room extensions that are not controlled by a system processor have no pump
run time protection.
thirty minutes.
Pump motors used with HWH leveling systems and room extension systems come in 3 different diameters; 3", 3.7" and 4.5".
Contact the vehicle manufacturer or HWH for help with identifying the motor size.
runs for more than four minutes with a 3" motor; or six minutes with a 3.7" or 4.5" motor that the motor is allowed
to cool for thirty minutes before continuing. Continuous operation of the pump motor without allowing the motor
PUMP RUN TIME
It is important that any time the pump
to cool can damage the motor.
DO NOT run the pump more than four or six minutes without allowing the pump motor to cool for
DO NOT run the pump more than four or six minutes without allowing the
DO NOT turn the system
DO NOT continue without allowing
on.
system will not operate until the reset switch is pushed.
DO NOT continue without allowing the pump motor to
cool for thirty minutes. LIGHTED RESET SWITCH
For cold weather information see "COLD WEATHER OPERATIONS" below.
COLD WEATHER OPERATIONS
HWH leveling and room extension systems are designed to function in cold weather down to 0 degrees Fahrenheit. Below
freezing (32 degrees Fahrenheit) the jacks or rooms will operate slower than usual.
For operation in temperatures dropping below -20 degrees Fahrenheit, it is necessary that the system is equipped with oil
designed for extreme cold weather application such as a synthetic oil. (Contact HWH for recommendations.)
DO NOT run the pump motor continuously.
Continuous operation of the pump with slow moving jacks or rooms in cold weather, without allowing the pump motor to
cool will cause the pump motor to burn up and damage the pump assembly.
It is important that any time the pump runs for more than four minutes
continuing. Continuous operation of the pump motor without allowing the motor to cool can damage the motor.
with a 3" motor; or six minutes with a 3.7" or 4.5" motor that the motor is allowed to cool for thirty minutes before

OPERATING PROCEDURES
MP34.0242
23SEP11
GENERAL INSTRUCTIONS
PREPARATION FOR TRAVEL
If parking on soft ground or asphalt paving, wood blocks or
pads must be placed under the jacks.
Press the "CANCEL" button and turn the master power switch
"OFF" at any time to stop the operation of the system.
Before traveling, the red jack warning lights must be off
and the "TRAVEL MODE" light must be on. If lights are
not correct for travel, retract jack as described in the
JACK RETRACTION Section.
If the jacks are retracted but a red "WARNING" light is lit
or the green "TRAVEL MODE" light is not lit, the system
If the jacks cannot be retracted according to the STORING
JACK Section, retract the jacks according to the MANUAL
JACK RETRACTION Section. The system should then be
checked.
TO CHECK THAT ALL JACKS ARE FULLY RETRACTED
LIGHTS. IT IS THE OPERATOR’S RESPONSIBILITY
HAZARD. DO NOT RELY SOLELY UPON WARNING
AND OR THE VEHICLE AND CREATE A DRIVING
EXTENDED CAN CAUSE SEVERE DAMAGE TO THE JACKS
MOVING THE VEHICLE WITH THE LEVELING JACKS
VEHICLE IS EQUIPPED WITH STRAIGHT-ACTING JACKS.
THE GROUND OR IN THE EXTEND POSITION. THIS
THE LEVELING JACKS ARE STILL IN CONTACT WITH
DO NOT MOVE THE VEHICLE WHILEWARNING:
Maintain adequate clearance in all directions for vehicle, room
extensions, awnings, doors, steps, etc. Vehicle may move in
any direction due to jacks extending or retracting, settling of
the jacks or the vehicle, equipment malfunction, etc..
The canopy should be fully retracted before traveling.
DO NOT MOVE THE VEHICLE IF ONE
OR MORE JACKS ARE EXTENDED TO THE GROUND.
WARNING:
needs to be serviced. INTO THE STORE/TRAVEL POSITION.
Any time the "AUTO LEVEL" button has been pushed, push
the "STORE" button before traveling.
on for the leveling system or canopy to operate.
The HWH or OEM supplied master power switch must be
The master power switch and the canopy lift control panel
key switch should be off while traveling.

MP34.2727
23SEP11
OPERATING PROCEDURES
AUTOMATIC HYDRAULIC LEVELING
the automatic leveling function.
"CANCEL" button on the HWH touch panel will stop
pushing the "AUTO LEVEL", "AUTO STORE" or the
IMPORTANT: During the Automatic Leveling procedures,
The AUTO LEVEL light will start to flash.
Press the "AUTO LEVEL" button one time.
The slight lift experienced during the stabilizing procedure
normally is not sufficient to cause a level issue for the motor
home. However, a feature of the single step leveling system
is the manual leveling buttons will function anytime the
ignition is in the ON or ACC. position and the park brake is
set. If desired, the operator can use the UP ARROWS
(extend jacks) that correspond to any lit yellow level indicator
light to "bump" the vehicle up slightly to turn that yellow
indicator light off.
AUTO LEVEL SEQUENCE: During the automatic
leveling sequence, after the system has extended the
appropriate jacks to level the vehicle and has turned
the yellow level indicator lights off, the system will
then stabilize the vehicle.
Each jack has a pressure switch. The switch will turn on
when the jack extends to the ground and lifts the vehicle
slightly. Jacks that have lifted the vehicle for leveling
should have pressure switches that are on.
The stabilize procedure is a specific sequence where the
computer checks the jack pressure switches. If the switch
is on, the jack is stabilizing the vehicle. If the switch is not
on, the computer turns the pump and valve on for that jack
until the pressure switch turns on.
The sequence starts with the right rear jack. If the pressure
switch is not on, the system will extend the jack as necessary.
If the switch is on (or when it comes on) the system will check
the left rear jack pressure switch, extending the jack if necessary
If the left rear switch is on (or when it comes on), the system
will recheck the right rear (extending if necessary) then recheck
the left rear (extending if necessary). After checking and
rechecking both rear jacks, the system then checks the front
jacks. The system checks both front jacks at the same time.
If either pressure switch is not on, the system will turn the
pump on and open the valves for both front jacks. When
If at this time a yellow level light is on, the system will
automatically repeat the complete leveling and stabilizing
sequence. The repeat sequence will only happen if a
yellow level light is on at the end of the initial leveling
and stabilizing sequence.
If a yellow level light is still on after the repeat sequence,
the system will turn off, leaving the level light on.
both front pressure switches are on, the system turns the
pump and front valves off.
In the event the jacks are
unable to level the coach, the "EXCESS SLOPE" light will
come on. Excess slope is one or two jacks fully extended
without turning the yellow level light out. The system will not
One or more jacks may be extended. The system will shut
off leaving the "EXCESS SLOPE" light on. The "EXCESS
SLOPE" light will remain on if there is power to the control
box, until the jacks have been fully retracted using the
"STORE" button, turning the red warning lights out. Refer
to the HITCHING AND STORING JACKS section. Move
the trailer to a more level position or level the trailer as close
as possible according to the MANUAL LEVELING section.
Manual leveling will operate when the EXCESS SLOPE
stabilize the vehicle if the "EXCESS SLOPE" light comes on.
EXCESS SLOPE SITUATION:
light is on.
The trailer must be unhitched from the tow vehicle before
leveling the trailer.
NOTE: Refer to the trailer manufacturers owner’s
manual for unhitching instructions.
The trailer master power switch and the canopy lift control
panel key switch must be on to operate the HWH leveling
system jacks. The HWH panel will function in the manual
mode with the master power switch and HWH key switch
on.
The HWH front jacks may be used to lift the trailer for
unhitching. Use the front UP ARROW button on the HWH
touch panel to extend the front jacks.
NOTE: Before extending the front jacks or leveling the
trailer, the operator may want to check the jacks and
place pads under the jacks if the ground will not
support the trailer.
If the rear yellow level light is on after unhitching, the front
of the trailer should be lowered until the rear level light is
off before starting the automatic leveling procedure.
AUTOMATIC LEVELING
The canopy lift control panel key switch should be off when
the leveling system or canopy lift are not in use.

MP34.2823
23SEP11
WARNING:
HITCHING AND STORING JACKS
THE OPERATOR MUST BE SURE THAT
THERE ARE NO OBJECTS UNDER THE TRAILER AND
THAT ALL PEOPLE ARE CLEAR OF THE TRAILER.
OPERATING PROCEDURES
2. Push the rear down arrow (RETRACT button) until
the weight of the trailer is off the rear jacks.
3. Hitch the trailer to the tow vehicle according to the
manufacturers instructions. Use the existing landing
gear or the front UP (EXTEND jacks) and DOWN
(RETRACT jacks) arrows.
1. After the trailer is securely hitched to the tow vehicle,
HITCHING
1. The master power switch and the HWH canopy lift control
panel key switch must be on to hitch the trailer and store the
The manual UP (extend jacks) and DOWN (retract jacks)
arrows will function anytime the master power switch and
the HWH canopy lift control panel key switch are on if the
"AUTO LEVEL" or AUTO STORE lights are not flashing.
STORING JACKS
NOTE: If the trailer is equipped with an air suspension,
it is recommended to not connect the tow vehicle air
supply to the trailer until the trailer is hitched to the
tow vehicle and the jacks are not touching the ground.
and the green "TRAVEL MODE" light is on.
lights are out, the jacks are in the STORE/TRAVEL position
3. The trailer can be moved as soon as the red warning
2. Turn the master power switch and HWH key switch off
OR SECURELY SUPPORTED BY THE AUXILIARY
IF THE TRAILER IS HITCHED TO A TOW VEHICLE
ONLY USE THE "STORE" BUTTON
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 TRAILER AND
WITH THE LEVELING JACKS EXTENDED CAN CAUSE
WITH STRAIGHT-ACTING JACKS. MOVING THE TRAILER
OR IN THE EXTEND POSITION. THIS TRAILER IS EQUIPPED
LEVELING JACKS ARE STILL IN CONTACT WITH THE GROUND
DO NOT MOVE THE TRAILER WHILE THE
THE STORE/TRAVEL POSITION.
JACKS.
WARNING:
WARNING:
jacks.
button has been used to retract the jacks, the system
with all four red WARNING lights out prior to traveling.
reinitiated and the jacks should be completely retracted
starting a store procedure the store procedure should be
IMPORTANT: If power to the system is interrupted after
thermal expansion.
will automatically retract any jack that extends due to
the "WARNING" lights condition.
to store for fifty minutes, then shut down regardless of
"WARNING light does not go out, the system will continue
individual red "WARNING" lights are out. If any one red
will automatically shut down 1 minute after the four
retracts, its red WARNING light will go out. The system
before the rear jacks will begin to retract. As each jack
light will flash. The front jacks will retract for 5 seconds
press the "AUTO STORE" button. The store indicator
a jack to extend slightly. When the "AUTO STORE"
NOTE: When traveling thermal expansion may cause
"CANCEL" button on the HWH touch panel will stop
pushing the "AUTO LEVEL", "AUTO STORE" or the
IMPORTANT: During the Automatic Store procedures,
the automatic store function.
before traveling.
If jacks cannot be retracted by the above procedure see the
MANUAL JACK RETRACTION section.

MP34.3040
23SEP11
MANUAL TOUCH PANEL OPERATION
OPERATING PROCEDURES
The trailer must be unhitched from the tow vehicle before
leveling the trailer.
The trailer master power switch and the canopy lift control
panel key switch must be on to operate the HWH leveling
system jacks. The HWH panel will function in the manual
mode with the master power switch and HWH key switch
on.
The HWH front jacks may be used to lift the trailer for
unhitching. Use the front UP ARROW button on the
HWH touch panel to extend the front jacks.
NOTE: Refer to the trailer manufacturers owner’s
manual for unhitching instructions.
NOTE: Before extending the front jacks or leveling the
trailer, the operator may want to check the jacks and
place pads under the jacks if the ground will not
support the trailer.
The vehicle may be leveled using the manual EXTEND
(UP ARROW) buttons or RETRACT (DOWN 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.
Jacks will extend (or retract) in pairs to raise (or lower) a
side or end of the trailer.
Any jack not used for leveling can be extended to the ground.
This provides additional stability against wind and activity in
the trailer. Jacks used to stabilize the trailer after leveling is
complete should lift the trailer slightly after touching the
ground.
IMPORTANT: DO NOT CONTINUE TO PUSH AN EXTEND
BUTTON FOR MORE THAN TEN (10) SECONDS AFTER
THAT PAIR OF JACKS ARE FULLY EXTENDED.
Turn the canopy control panel key switch off anytime the
leveling system or canopy lift is not in use.

MP34.4325
23SEP11
CANOPY LIFT RAISE PROCEDURE
WARNING: KEEP PEOPLE AND OBSTRUCTIONS
CLEAR OF CANOPY WHEN OPERATING.
NOTE: Make sure there is adequate clearance to fully
extend the canopy.
1. Insert the KEY and turn the KEY SWITCH to the "ON"
POSITION. The trailer master power switch must be on.
2. To raise the canopy, press and hold the LIFT CONTROL
SWITCH in the "EXTEND" POSITION. When the canopy is
fully raised, release the LIFT CONTROL SWITCH.
IMPORTANT: Do not hold the LIFT CONTROL SWITCH in
the "EXTEND" POSITION for more than ten seconds after the
canopy is fully extended or stops moving. IF EITHER SIDE
OF THE CANOPY STOPS MOVING, RELEASE THE LIFT
CONTROL SWITCH IMMEDIATELY.
NOTE: Releasing the LIFT CONTROL SWITCH will halt
the operation of the lift.
3. Turn the KEY SWITCH to the "OFF" POSITION.
4. Remove the KEY to prevent undesired operation of the lift.
CANOPY LOWER PROCEDURE
fully retracted, release the LIFT CONTROL SWITCH.
SWITCH in the "RETRACT" POSITION. When the canopy is
3. To lower the canopy, press and hold the LIFT CONTROL
OF THE CANOPY STOPS MOVING, RELEASE THE LIFT
the "RETRACT" POSITION for more than ten seconds after the
Do not hold the LIFT CONTROL SWITCH in
CONTROL SWITCH IMMEDIATELY.
canopy is fully retracted or stops moving.
IMPORTANT:
IF EITHER SIDE
4. Turn the KEY SWITCH to the "OFF" POSITION.
6. If the room will not retract see the MANUAL CANOPY LOWER
PROCEDURE.
OPERATING PROCEDURES
5. Remove the KEY to prevent undesired operation of the lift.
IMPORTANT: AS THE CANOPY BECOMES FULLY
EXTENDED, ONE FRONT AND ONE REAR SAFETY
LOCK SHOULD SNAP INTO PLACE. MAKE SURE
THESE LOCKS ARE IN THE CORRECT POSITION
FOR A RAISED CANOPY.
WARNING:
CLEAR OF CANOPY WHEN OPERATING.
KEEP PEOPLE AND OBSTRUCTIONS
POSITION. The trailer master power switch must be on.
1. Insert the KEY and turn the KEY SWITCH to the "ON"
2. Release the canopy safety locks. There is one front and
one rear lock. They are on opposite sides of the trailer. Pull
up on the safety lock release handle to move the safety lock.
If necessary, push the canopy control switch to EXTEND to
raise the canopy so the safety locks can be released.
NOTE: The pump will not run while the canopy
is lowering.
the operation of the lift.
NOTE: Releasing the LIFT CONTROL SWITCH will halt
LOCK RELEASED
POSITIONPOSITION
CANOPY RAISED
CANOPY SAFETY LOCKS
PULL UP TO RELEASEPULL UP TO RELEASE
LOCK RELEASE HANDLE

MP34.9905
26SEP11
AUXILIARY HAND PUMP OPERATION
WARNING:
OPERATING PROCEDURES
LEVELING SYSTEM
KEEP PEOPLE AND OBJECTS
CLEAR OF TRAILER WHEN OPERATING THE
LEVELING SYSTEM.
The auxiliary hand pump can be used to extend the jacks
anytime the pump will not function.
The auxiliary hand pump is a two stage pump that will
produce enough pressure to extend the jacks and lift the
vehicle. When operating the auxiliary pump to lift the
vehicle, 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(s). Insert the hand pump handle into the handle
receptacle and move the handle in a fore and aft motion.
EXTENDING JACKS
To extend jacks use the valve release cam to open the
appropriate valve(s).
Operate hand pump in a fore and aft motion to extend
jacks or lift the canopy.
Note: It is best if jacks are extended in pairs; both front,
both rear, right front & right rear or left front & left rear.
Return valve release cams to valve closed
position when finished.
RETRACTING JACKS
WARNING: ONLY USE THE RETRACT VALVE CAM
RELEASES IF HITCHING THE TRAILER TO THE TOW
VEHICLE OR IF THE TRAILER IS SUPPORTED BY THE
AUXILIARY MANUAL JACK(S). ALLOW AMPLE ROOM
FOR THE VEHICLE TO MOVE IN ANY DIRECTION WHEN
A JACK MANIFOLD VALVE IS OPENED. OPEN THE
VALVE RELEASE CAMS SLOWLY TO KEEP THE TRAILER
FROM DROPPING RAPIDLY. TRAILER WILL DROP WHEN
THE JACK RETRACT MANIFOLD VALVE IS OPENED.
The hand pump is not needed to retract the jacks. Move the
retract valve cam release to the opened position to retract a
jack.
It is recommended to retract the rear jacks before retracting
the front jacks.
When the jacks are fully retracted, move the retract valve
cam releases to the valve closed position.
AUXILIARY HAND
PUMP HANDLE
JACK EXTEND
VALVES (4)
JACK RETRACT
VALVES (4)
SIDE VIEW OF
JACK MANIFOLD &
POWER UNIT JACK MANIFOLD & POWER UNIT
TOP VIEW OF
(ON BOTTOM SIDE
OF THE MANIFOLD)
RIGHT FRONT
LEFT FRONT
RIGHT REAR
LEFT REAR
OPENED
VALVE
VALVE
CLOSED
CAM
RELEASE
VALVE
OPEN
CLOSE
VALVES (4)
JACK EXTEND

MP34.9906
23SEP11
AUXILIARY HAND PUMP OPERATION
WARNING:
OPERATING PROCEDURES
CANOPY LIFT
KEEP PEOPLE CLEAR OF THE
TRAILER WHEN OPERATING THE CANOPY LIFT.
The auxiliary hand pump can be used to raise the
canopy lift anytime the pump will not function.
The auxiliary hand pump is a two stage pump that
will produce enough pressure to lift the canopy.
When operating the auxiliary pump to lift the canopy,
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
To operate the auxiliary hand pump, open the
appropriate solenoid valve. Insert the hand pump
handle into the handle receptacle and move the
LIFTING THE CANOPY
Move the canopy lift valve release cam
AUXILIARY HAND
PUMP HANDLE
SIDE VIEW OF
JACK MANIFOLD &
POWER UNIT
more pressure.
handle in a fore and aft motion.
to the valve open position.
Operate the hand pump handle in a fore and aft motion
until the canopy is fully lifted.
The canopy safety locks should snap into place
as the canopy becomes fully lifted.
LOCK RELEASE HANDLE
PULL UP TO RELEASEPULL UP TO RELEASE
CANOPY RAISED
POSITION POSITION
LOCK RELEASED
LOWERING THE CANOPY
Release the canopy safety locks. There is a front and rear
safety locks on opposite sides of the trailer.
NOTE: It may be necessary to raise the canopy slightly
to release the safety locks.
Slowly move the canopy lower valve release cam to the
valve opened position. The canopy should lower without
using the auxiliary hand pump.
When the canopy is fully lowered, move the canopy lower
valve cam release to the valve closed position.
VALVE
OPENED
MANIFOLD
CANOPY LIFT
SIDE VIEW OF
CLOSE
OPEN
CLOSED
VALVE
CANOPY
LIFT VALVE
LOWER VALVE
CANOPY
VALVE RELEASE CAMS

MAINTENANCE
MP44.0035
23SEP11
OIL LEVEL
The oil level should be checked when the vehicle is first
purchased and then once every two years. More often if
there is an oil leak in the system.
NOTE: Overfilling the tank can cause leakage of oil
through the breather cap.
ELECTRICAL SYSTEM
The batteries should be in good condition and fully charged.
Weak batteries can cause erratic operation. Battery cable
terminals and battery posts and connections should be kept
All electrical connections, especially ground connections,
should be clean, tight, free from corrosion and protected
JACKS
There are very few user serviceable parts on the jacks
The jacks require very little maintenance. If the jacks are
VISUAL INSPECTION
Periodically inspect the system for oil leaks and
damaged or missing parts, such as pivot bolts or springs.
Check the hydraulic lines and wiring for damage and wear.
Check that the jacks do not interfere with any parts of the
vehicle when they are in the "STORE" position.
The system will operate better if kept clean and free
from caked on mud or ice.
OPERATIONAL CHECK
Check that all lights work according to the "INDICATOR
LIGHT" Section. Correct function of the red "WARNING"
Review the OPERATOR MANUAL. Run the system
according to the SYSTEM OPERATION Section.
Note any abnormal operation.
Review the "JACK RETRACTION" Section. Make sure the
jacks will fully retract to the "STORE" position. Jacks should
not interfere with any of the coach when in the "STORE"
All maintenance should be done as part of the normal
servicing of the coach.
clean. from weathering.
light is important.
position.
FLUID: HWH Specialty Hydraulic Oil is recommended. In an
brake fluid or hydraulic jack fluid. Use of these can damage
and can cause staining should a leak occur. DO NOT USE
Dexron automatic transmission fluid contains red dye
emergency Dexron automatic transmission fluid can be used.
seals.
NOTE:
extremely dirty with caked on mud they should be washed.
If extremely dirty, the jack rods should NOT be wiped. The
jack rods do not need to be oiled or sprayed with anything.
CANOPY LIFT
The HWH lift mechanisms need no maintenance.
DO NOT grease or lubricate any parts of the HWH
mechanism.
Any visible mechanism can be kept clean by washing
with water.
See ML47149 for proper maintenance of all jacks.
All jacks and the canopy lift should be completely retracted
before checking the oil level. The oil reservoir is part of the
pump / manifold assembly. The oil level is checked and
filled through the breather cap. Clear any dirt away from
the breather / filler cap before removing. The oil level
should be within one inch of the top of the reservoir.
Most breather caps have a dipstick.

MAINTENANCE
MP44.050
9
21NOV1
6
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.

SENSING UNIT MAINTENANCE/SERVICE
SENSING UNIT ADJUSTMENT / WITH ADJUSTING ENHANCEMENT
NOTE: If opposing LED’s are lit, there is a problem with
the Sensing Unit.
If LED (A) is lit: Tighten adjustment screw number 1
until the LED is off.
If LED (C) is lit: Loosen adjustment screw number 1
until the LED is off.
If LED (B) is lit: Loosen adjustment screw number 3
until the LED is off.
until the LED is off.
If LED (D) is lit: Tighten adjustment screw number 3
09NOV10
MP44.1511
With the vehicle level according to the bubble level, if there
are no yellow lights lit on the Touch Panel, the sensing unit is
properly adjusted. If there are yellow LEVEL lights lit on the
Touch Panel, manual adjustments to the Sensing Unit are
needed.
SENSING UNIT ACCURACY TOLERANCE
The sensing unit has an accuracy tolerance of ± 5.4 inches front to rear and
INSTRUCTION SHEET
± 1 inch side to side on a 36 foot vehicle. Typical leveling results will be better.
IMPORTANT: THE SENSING UNIT MOUNTING SPRINGS
SHOULD BE COMPRESSED ABOUT 1/2 THEIR FREE
LENGTH. SCREW NUMBER 2 SHOULD NOT BE TURNED
MOUNTED BELOW
FRONT
MOUNTING SURFACE
(3) MOUNTING
(3) MOUNTING
SCREWS
SPRINGS
THIS
SIDE
UP
LED A - FRONT OF VEHICLE
LED B - LEFT SIDE OF VEHICLE
LED C - REAR OF VEHICLE
LED D - RIGHT SIDE OF VEHICLE
REMOTE MOUNTED "POTTED" ELECTRONIC SENSING UNIT
WHILE ADJUSTING THE SENSING UNIT. AFTER
ADJUSTING THE SENSING UNIT, BUMP THE SENSING
UNIT TO SEE THAT IT IS SETTLED TIGHT AGAINST ALL
THREE SCREW HEADS AND STILL INDICATES THAT
THE UNIT IS LEVEL.
Level the vehicle by placing a bubble level in the center of the
freezer floor or upon whichever surface within the vehicle that
is to be level. It is best if the level is placed close to the
mounting area of the sensing unit. Using the Leveling System
and the bubble level, ignoring the yellow LEVEL lights on the
Touch Panel, level the vehicle until the bubble is centered.
The ignition (motorized units) or master power switch (towable
units) must be on. Remove the "Adjusting Enhancement Cap".
DO NOT LOSE THIS CAP. There is a small pin beneath the
cap. Use a jumper wire with an alligator clip to apply a ground
to the pin. This will make the sensing unit very sensitive. The
yellow lights may "jump" around while adjusting the sensing unit.
Let the lights settle down after each adjustment. Small, gentle
turns will work best. Turn mounting screws 1 and 3 to adjust
the sensing unit. Turn screws as instructed to turn out all the
yellow LEDs. When all the LEDs are out, remove the jumper
wire and replace the adjusting enhancement cap. DO NOT
over tighten.
SENSING UNIT
BOTTOM VIEW OF
LED
3
D
C
LED
LED
ABYELLOW LEDs
2
MOUNTING/ADJUSTMENT
SCREWS (3)
1
LED
Move the vehicle to an unlevel position and level the
vehicle according to the yellow level sensing lights on
the touch panel. Readjust if necessary.
ADJUSTING
ENHANCEMENT
CAP

4 - FIXED JACKS
MP64.3955
23SEP11
FRONT OF TRAILER
HYDRAULIC LINE CONNECTION DIAGRAM
REMOTE CANOPY LIFT MANIFOLD
LEFT FRONT RIGHT FRONT
LEFT REAR RIGHT REAR
LEFT REAR
RIGHT REAR
LEFT FRONT
RIGHT FRONT
RETRACT
PRESSURE
RETURN
SEE HYDRAULIC LINE CONNECTION DIAGRAM
TO REMOTE
CANOPY LIFT
MANIFOLD
JACK
VALVES (4)
EXTEND
VALVES (4)
JACK
JACK JACK
JACKJACK
4 CYLINDER CANOPY LIFT
PRESSURE
SWITCH IS
SET AT
2000 PSI
NOTE: PUMP RELIEF
IS SET AT 2500 PSI

MP64.5130
23SEP11
4 CYLINDER CANOPY LIFT
HYDRAULIC LINE CONNECTION DIAGRAM
CANOPY
LIFT
CYLINDER
CYLINDER
CANOPY
LIFT
SIDE VIEW OF
MAIN POWER UNIT
CYLINDER
CANOPY
LIFT
CANOPY
CYLINDER
LIFT
CAP END
ROD END
B
A
B
A
ROD END
CAP END
PRESSURE
CAP END
B
CAP END
B
ROD END
A
ROD END
A
CANOPY LIFT
MANIFOLD
FRONT VIEW
DE
C
RETURN
VALVE
LIFT
CANOPY
SYNCHRONIZING CYLINDER
ROD END HOSES (A) FROM CANOPY LIFT
CYLINDERS TO SYNCHRONIZING CYLINDER
CAP END HOSES (B) MUST BE THE SAME
MUST BE HIGH PRESSURE HOSE OF THE
SAME LENGTH AND DIAMETER
LENGTH AND DIAMETER
VALVE
CANOPY
LOWER

MP84.3121
23SEP11
TOUCH PANEL
LF RF
LR RR
AB B A
B A B A
6235
4000
4200 3200
6235
3000
6235
1000
1200 2200
6235
2000
WARNING
SWITCH
PRESSURE SWITCH
SWITCH
WARNING
PRESSURE SWITCH
SWITCH
WARNING
SWITCH
PRESSURE
SWITCH
WARNING
PRESSURE
SWITCH
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
HWH COMPUTERIZED LEVELING
EXTEND
RETRACT
AUTO
STORE
LEVEL
AUTO
WARNING!
BRAKE
TRAVEL
CANCEL MODE
PARK/
NOT IN
EXCESS
R
SLOPE
MANUAL
RETRACT
EXTEND
SEE ELECTRICAL CONNECTION DIAGRAM
LEVELING SYSTEM HYDRAULIC MANIFOLD
SEE ELECTRICAL CONNECTION
DIAGRAM - SENSING UNIT
DO NOT CUT
TERMINATING
RESISTOR
DO NOT CUT
TERMINATING
RESISTOR
MULTIPLEXED INPUT/OUTPUT MODULE
SEE ELECTRICAL CONNECTION DIAGRAM
8100
MAIN I/O MODULE HARNESS ROUTING
ELECTRICAL CONNECTION DIAGRAM
725 SERIES SINGLE STEP LEVELING SYSTEM
MAIN HARNESS
CONNECTOR FOR
I/O MODULE
SEE ELECTRICAL CONNECTION
DIAGRAM - CANOPY LIFT
8601
6231
TO HWH
GROUND
STUD
B A
P.E.D
6810

MP84.3172
ELECTRICAL CONNECTION DIAGRAM
MULTIPLEXED INPUT/OUTPUT MODULE
23SEP11
PIN # WIRE
COLOR WIRE NUMBER WIRE DESCRIPTION AND FUNCTION
A1
LED AND WIRE/CONNECTION INFORMATION
CAN HIGH COMMUNICATION WIREYELLOWA2 N/A NO CONNECTIONA3 AND A4 SWITCHED GROUND FROM RIGHT FRONT JACK WARNING SWITCH2000BLACKA5 SWITCHED GROUND FROM RIGHT FRONT JACK PRESSURE SWITCHBLACKA6 2200 SWITCHED GROUND FROM RIGHT REAR JACK PRESSURE SWITCHBLACKA7 3200 NO CONNECTIONA8 +12 VOLT POWER TO THE TOUCH PANELREDB1 6800 CAN LOW COMMUNICATION WIREGREEN N/AB2 GROUND TO THE TOUCH PANELWHITEB3 6230 NO CONNECTIONB4 SWITCHED GROUND FROM RIGHT REAR JACK WARNING SWITCHBLACKB5 3000 SWITCHED GROUND FROM LEFT REAR JACK PRESSURE SWITCHBLACKB6 4200 NO CONNECTIONB7 SWITCHED GROUND FROM 2000 PSI MANIFOLD PRESSURE SWITCHBLACKB8 8100 +12 VOLT POWER FOR LEVEL SENSING UNITC1 RED 6121 SHIELD WIRE FOR GREEN & YELLOW CAN COMMUNICATION WIRESN/AC2 N/A GROUND FOR LEVEL SENSING UNITWHITEC3 6231 SWITCHED GROUND FROM SENSING UNIT - REAR0400BLACKC4 SWITCHED GROUND FROM LEFT REAR JACK WARNING SWITCH4000BLACKC5 NO CONNECTIONC6 AND C7 SWITCHED GROUND FROM SENSING UNIT - RIGHT SIDE0300BLACKC8
D1 6810 +12 VOLT POWER FOR I/O MODULE FROM LIFT CONTROL PANEL
GROUND FOR JACK WARNING SWITCHESWHITED2 6235 NO CONNECTIOND3 SWITCHED GROUND FROM LEFT FRONT JACK WARNING SWITCH1000BLACKD4 SWITCHED GROUND FROM LEFT FRONT JACK PRESSURE SWITCHBLACKD5 1200 SWITCHED GROUND FROM SENSING UNIT - LEFT SIDE0100BLACKD6 SWITCHED GROUND FROM SENSING UNIT - FRONTBLACKD7 0200 GROUNDBLACKD8 6231
RIGHT FRONT JACK EXTEND
LEFT FRONT JACK EXTEND
RIGHT REAR JACK EXTEND
LEFT REAR JACK EXTEND
LINK LIGHT
MASTER RELAY
PUMP RELAY
FRONT VIEW
OF I/O
MODULE
CONNECTOR
87654321
A
B
C
D
A LIT RED LED INDICATES THERE SHOULD BE
+12 VOLTS ON THE CORRESPONDING WIRE.
LR RR LF RF
LEFT REAR JACK RETRACT
RIGHT REAR JACK RETRACT
LEFT FRONT JACK RETRACT
RIGHT FRONT JACK RETRACT
LINK LIGHT: LINK LIGHT FLASHING
INDICATES PROPER COMMUNICATION
BETWEEN THE I/O MODULE AND THE
TOUCH PANEL. LINK LIGHT ON SOLID
OR OFF INDICATES A FAILURE.
BLACK 8601 +12 PUMP REQUEST FROM LIFT CONTROL PANEL
BLACK

MP84.3242
ELECTRICAL CONNECTION DIAGRAM
LEVELING SYSTEM HYDRAULIC MANIFOLD
23SEP11
P.E.D
AB
P.E.D
AB
P.E.D
AB
P.E.D
AB
P.E.D
ABBA
P.E.D
B A
P.E.D
AB
P.E.D
2400140034004400
4500 15003500 2500
1400 - LEFT FRONT JACK EXTEND
1500 - LEFT FRONT JACK RETRACT
2400 - RIGHT FRONT JACK EXTEND
2500 - RIGHT FRONT JACK RETRACT
3400 - RIGHT REAR JACK EXTEND
3500 - RIGHT REAR JACK RETRACT
4400 - LEFT REAR JACK EXTEND
4500 - LEFT REAR JACK RETRACT
NOTE: MOTOR, RELAY AND SYSTEM
GROUNDS ARE NOT SHOWN. SEE
ELECTRICAL CONNECTION DIAGRAM
MASTER AND PUMP RELAY WIRING
FOR CONNECTION INFORMATION.
SEE ELECTRICAL CONNECTION DIAGRAM
725 SERIES SINGLE STEP LEVELING SYSTEM
MAIN I/O MODULE HARNESS ROUTING
8100
LR
RET RET
RR RET LF RET RF
LR RR LF RF
EXTEND
VALVES
UNDER
I/O MODULE
8100 - 2000 PSI PRESSURE SWITCH