HWH 725 SERIES User manual

OPERATOR’S MANUAL
ML53901/MP04.339
1
19JUN1
4
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
HYDRAULIC LEVELING SYSTEM
HWH 725 SERIES, COMPUTER-CONTROLLED
R
Straight-Acting (Power-Extend/Spring-Retract) Jacks
AP53900
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
Pilot Air Dump
DUMP
MANUAL
(with BI-AXIS Touch Panel Control)
R
Multiple Slide-Outs W/Air Seals
Generator Slide

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.
08APR10
MP14.0014
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.
HWH maintains technical and information services at 800-321-3494 or
563-724-3396. Assistance is available Monday thru Friday from 8:00A.M until 5:00P.M. C.S.T.
Technical and information service is also available on-line at www.hwh.com.

MP24.3151
07JUN10
"CANCEL" BUTTON:
any leveling system operation.
"AUTO LEVEL" BUTTON:
"AUTO STORE" BUTTON:
four jacks at the same time. WARNING LIGHTS:
"EXCESS SLOPE" LIGHT:
the leveling system cannot level the vehicle.
"NOT IN PARK/BRAKE" LIGHT:
when the hand/auto brake is not set and the "AUTO LEVEL"
"TRAVEL MODE" LIGHT:
when the ignition is on, when the jacks are retracted and
there are no red WARNING lights on.
MASTER "JACKS DOWN" WARNING LIGHT:
light mounted in the dash separate from the touch panel.
and the ignition is "ON".
BUZZER:
CONTROL FUNCTIONS
INDICATOR LIGHTS (CONTINUED)
CONTROL BUTTONS
Push this button to stop
Push this button to retract all
This indicator will light when
This indicator will light
This indicator light will be on
This is a
This is a jacks down warning.
EXTEND BUTTONS (UP ARROWS):
RETRACT BUTTONS (DOWN ARROWS):
LEVELING LIGHTS:
These buttons will
extend their respective jack pairs to lift the vehicle.
These buttons
will retract their respective jack pairs to lower the vehicle.
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.Push this button any time to
The four red lights surrounding the
yellow level indicators are jacks down WARNING lights.
They are functional only when the ignition is in the "ON"
extended 1/4 to 1/2 inch.
start the automatic leveling function.
It will sound if the master "JACKS DOWN"
CONTROL IDENTIFICATION
725 SERIES LEVELING SYSTEM
COMPUTER-CONTROL
or "ACC" position, the system is on, and the jacks are
It will be on when any one or more jacks are extended
button is being pushed.
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
INDICATOR LIGHTS
AUTO LEVEL INDICATOR LIGHT: This light will flash
during the automatic leveling function.
STORE INDICATOR LIGHT: This light will flash during
the automatic store function.
When all four yellow LEVEL lights are out, the vehicle is
level.
MANUAL
DUMP
"MANUAL DUMP"
Button
warning light is on.
"MANUAL DUMP" BUTTON: This is a manual button for
dumping air from the vehicle suspension.

CONTROL FUNCTIONS
CONTROL IDENTIFICATION
MP24.4560A
20JUN1
4
ROOM CONTROL
SWITCH
KEY SWITCH
The KEY SWITCH controls power to the ROOM
CONTROL SWITCH. When the KEY SWITCH is in the "ON"
POSITION the room can be operated, and the key cannot be
removed. When the KEY SWITCH is in the "OFF" position
the room cannot be operated, and the key can be removed.
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. Re-
leasing the ROOM CONTROL SWITCH will halt the operation
of the room.
ROOM OPERATOR’S PANEL
KEY
KEY SWITCH:
ROOM CONTROL SWITCH:
desired position to operate a room.
Push the selector switch to theROOM SELECTOR SWITCH:
ROOM RETRACTPASSENGER
ROOM EXTENSION
KEEP PEOPLE AND OBSTRUCTIONS CLEAR OF ROOM WHEN OPERATING.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING.
WARNING!
PUMP ON
ROOM EXTEND
OPERATE
READY TO
FLASH / WAIT
DRIVER
H
HYDRAULIC
HW
CORPORATION
STEADY
R
PUMP ON LIGHT OPERATE LIGHT
READY TO
This light will flash slowly fo
r
READY TO OPERATE LIGHT:
20 seconds after the key switch is turned on. The light wi
ll
then come on steady. The room can now be operated. If thi
s
light starts to flash rapidly, the room should still function bu
t
the air seal manifold may need service.
PUMP ON LIGHT: This light will be on when the room contro
l
switch is pushed to EXTEND or RETRACT and the READY TO
OPERATE light is on steady or flashing rapidly.
ROOM SELECTOR
SWITCH

OPERATING PROCEDURES
MP34.0232
07AUG13
GENERAL INSTRUCTIONS
PREPARATION FOR TRAVEL
If parking on soft ground or asphalt paving, a wood block or
pad should be placed under each jack.
Any time a hydraulic leveling process is interrupted, it is
recommended to retract the jacks according to the JACK
RETRACTION Section and then restart the leveling process.
If the hand / auto brake is not set when the "AUTO LEVEL"
button is pressed, the "NOT IN PARK/BRAKE" light will
come on. When the "AUTO LEVEL" button is released the
If the jacks are retracted but a red "WARNING" light is lit
the system needs to be serviced.
If the jacks cannot be retracted according to the JACK
RETRACTION Section, retract the jacks according to the
MANUAL JACK RETRACTION Section. The system
should then be checked.
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..
Any room extension or generator slide should be fully
DO NOT MOVE THE VEHICLE IF ONE
OR MORE JACKS ARE EXTENDED TO THE GROUND.
WARNING:
"NOT IN PARK/BRAKE" light will go out. The Automatic
retracted before traveling.
Leveling function will not start.
Press the "CANCEL" button or turn the ignition switch
"OFF" at any time to stop the operation of the system.
fail to retract completely, extend the jacks back down
to the ground then retract the jacks again.
NOTE: If the vehicle is parked or stored with the jacks
extended for an extended period of time and the jacks
IMPORTANT: Before traveling, the red jack warning
lights must be off the "TRAVEL MODE" light must be on
and the vehicle should be at the proper height for travel.
If lights are not correct for travel, retract jack as
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
WARNING:DO NOT MOVE THE VEHICLE WHILE
TRAVELING. CONTACT MANUFACTURER TECHNICAL
SERVICE BEFORE MOVING A VEHICLE THAT IS NOT
AT PROPER TRAVEL HEIGHT.
VEHICLE IS AT THE PROPER RIDE HEIGHT FOR
INTO THE STORE/TRAVEL POSITION AND 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 JACKS ARE FULLY RETRACTED
described in the JACK RETRACTION Section.

MP34.2751B
20JUN1
4
OPERATING PROCEDURES
725 SERIES LEVELING SYSTEM
or level the vehicle as close as possible according to the
to retract the jacks. Move the vehicle to a more level position
turning the red warning lights out. Push the "STORE" button
SLOPE" light will remain on if the ignition is in the "ON" or
One or more jacks may not be extended. The system will sh
ut
stabilize the vehicle if the "EXCESS SLOPE" light comes on
.
without turning the yellow level light out. The system will no
t
come on. Excess slope is one or two jacks fully extending
unable to level the coach, the "EXCESS SLOPE" light will
EXCESS SLOPE SITUATION: In the event the jacks are
AUTOMATIC HYDRAULIC LEVELING (HWH TOUCH PANEL CONTROLS)
the vehicle ignition is in the ON or ACC. position
the leveling system touch panel can be on anytime
NOTE: One or two yellow level indicator lights on
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,
and place a pad under each jack if the ground will not
2. At this time, the operator may want to check the jacks
engine off. Turn the ignition to the "ACCESSORY" position.
parking the vehicle and set parking brake. Turn the coach
1. Place transmission in the recommended position for
and the park brake is set.
support the vehicle.
MANUAL HYDRAULIC OPERATION section.
"ACC" position, until the jacks have been fully retracted
off leaving the "EXCESS SLOPE" light on. The "EXCESS
5. Turn the ignition switch to the "OFF" position.
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 indicato
r
light to "bump" the vehicle up slightly to turn that yellow
indicator light off.
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.
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 already 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 fron
t
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 leveling 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.
THE "AUTO LEVEL" BUTTON IS PUSHED.
AIR WILL BE EXHAUSTED FROM THE VEHICLE SUSPENSION
AND THE VEHICLE WILL LOWER IMMEDIATELY AFTER
BUTTON THE OPERATOR MUST BE SURE THAT ALL
PERSONS AND OBJECTS ARE CLEAR OF THE VEHICLE.
will begin to dump air from the vehicle suspension. After
approximately 25 seconds, the leveling process will begin.
The AUTO LEVEL light will start to flash. The system
3. Press the "AUTO LEVEL" button one time.
WARNING: PRIOR TO PUSHING THE "AUTO LEVEL"
When a jack extends approximately 1 inch, it’s individual
red warning light on the touch panel will come on. The
touch panel "TRAVEL MODE" light will go out. If the
ignition is in the ON position, the warning buzzer will
sound.
AUTO LEVEL SEQUENCE:
STABILIZE SEQUENCE: The stabilize sequence is part of
the Auto Level sequence. Each jack has a pressure switch.
NOTE: If a room control switch is used while the leveling
system is in the AUTO LEVEL mode, the leveling sequence
will be interrupted. When the room control switch is
released, the leveling sequence will resume.

MP34.3061B
20JUN1
4
WARNING:
JACK RETRACTION (HWH TOUCH PANEL CONTROLS)
THE OPERATOR MUST BE SURE THAT
THERE ARE NO OBJECTS UNDER THE VEHICLE AND THAT
ALL PEOPLE ARE CLEAR OF THE VEHICLE.
3. If jacks cannot be retracted by the above procedure see
MANUAL JACK RETRACTION Section.
WARNING: 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 JACKS ARE FULLY RETRACTED INTO
2. The vehicle can be moved as soon as the red warning
lights are out, the jacks are in the STORE/TRAVEL position
and the green "TRAVEL" light is on, if the vehicle is at the
THE STORE/TRAVEL POSITION AND THE VEHICLE IS AT
OPERATING PROCEDURES
725 SERIES LEVELING SYSTEM
NOTE: When traveling thermal expansion may cause
a jack to extend slightly. When the "AUTO STORE"
button has been used to retract the jacks, the system
will automatically retract any jack that extends due to
thermal expansion.
IMPORTANT: If a red warning light and buzzer come on
while traveling, the jacks should be checked as soon as
a safe parking location is found.
NOTE: When the jacks are stored with the ignition in
the ON position, the warning buzzer will sound until
the jacks have retracted to the STORE position. If
desired, the jacks can be stored with the ignition key
in the accessory position. This will eliminate the
warning buzzer while the jacks are retracting.
1. Start the engine and press the "AUTO STORE" button.
The store indicator light will flash. The vehicle should start
to return to proper ride height. The front jacks will retract for
5 seconds before the rear jacks will begin to retract. As each
jack retracts, its red WARNING light will go out. The system
will automatically shut down 1 minute after the four individual
red "WARNING" lights are out. If any one red "WARNING
light does not go out, the system will continue to store for fifty
minutes, then shut down regardless of the "WARNING" lights
the automatic store function.
"CANCEL" button on the HWH touch panel will stop
pushing the "AUTO LEVEL", "AUTO STORE" or the
IMPORTANT: During the Automatic Store procedures,
IMPORTANT: If power to the system is interrupted
after starting a store procedure with either the
touch panel or the remote rocker switch, the store
procedure should be reinitiated and the jacks
should be completely retracted with all four red
WARNING lights out prior to traveling.
condition.
THE PROPER RIDE HEIGHT.
proper ride height for traveling.
It is recommended to retract any room extensions
before retracting the jacks.
system is in the AUTO STORE mode, the store sequence
NOTE: If a room control switch is used while the leveling
released, the store sequence will resume.
will be interrupted. When the room control switch is

OPERATING PROCEDURES
MP34.3333
07AUG13
IMPORTANT: Do not continue to push an EXTEND
MANUAL JACK RETRACTION
MANUAL HYDRAULIC OPERATION
1. Place transmission in the recommended position for parking
2. Place pads under the jack feet if the ground will not support
the vehicle on the jacks.
4. The vehicle may be leveled using the manual EXTEND
(UP ARROW) buttons on the right half of the panel. If a yellow
LEVEL SENSING light is on, that side, end or corner of the
Jacks will extend (or retract) in pairs to raise (or lower) a side
or end of the vehicle.
button for more than ten (10) seconds after that pair of
5. When leveling is completed, turn the ignition
switch to the "OFF" position.
the vehicle, and set the parking brake. Turn the ignition to the
"ACCESSORY" position.
jacks are fully extended.
large and / or small valves.
NOTE: Assemblies can have different combinations of
release for retracting only if the "AUTO STORE" button on the
equipped with a manual valve release. Use the manual valve
The solenoid valves on the power unit valve assembly are
DO NOT CRAWL UNDER THE VEHICLE, KEEP A SAFE
DISTANCE IN FRONT AND REAR OF THE VEHICLE.
THE VEHICLE MAY DROP AND/OR MOVE FORWARD
OR BACKWARD WITHOUT WARNING AS THE VALVE
RELEASE IS OPERATED.
1. Locate the manual valve release on each solenoid valve.
The solenoid valves are located on the power unit/valve
2. Allow clearance for the vehicle to lower.
assembly.
WARNING: KEEP AWAY FROM THE WHEELS,
5. Check that all four jacks are now retracted.
6. Close the valves by moving the valve release cam to
7. The system should now be repaired before using again.
3. Retract the front jacks by slowly opening
the two center valves.
4. Repeat the process for the rear jacks by opening the two
the closed position.
outer valves.
vehicle is low. It is best to level the vehicle side to side first,
if needed, before front to rear.
Any jack not used for leveling can be extended to the
ground. This provides additional stability against wind and
activity in the vehicle. Jacks used to stabilize the vehicle
after leveling is complete should lift the vehicle slightly after
touching the ground.
BREATHER
RELEASE CAM
WITH VALVE
SMALL STYLE
MANIFOLD
CAP
from the vehicle suspension.
3. Push the "DUMP" button. Wait until all air is exhausted
CLOSED
VALVE
OPEN
VALVE RELEASE CAM
LARGE STYLE WITH
CLOSE VALVE
OPENED
VALVE RELEASE CAM OPERATION
control panel will not retract the jacks for travel.
Large and small valves will be equipped with a valve
release cam. The cam might be rotated in any direction
on the valve. Pushing the release cam in the wrong
direction may damage the valve.

OPERATING PROCEDURES
MP34.433
1
07MAY1
9
ROOM EXTEND PROCEDURE
1. The park brake must be set for the room to be operated.
WARNING: KEEP PEOPLE AND OBSTRUCTIONS
CLEAR OF ROOM WHEN OPERATING.
NOTE: Make sure there is adequate clearance to fully
extend the room.
3. Insert the KEY into the KEY SWITCH on the room
extension operator’s panel and turn it to the "ON" position.
The amber READY TO OPERATE light will flash. When the
amber light is on steady the room can be operated. If there
the room control switch will interrupt the leveling system
IMPORTANT: IF EITHER SIDE OF THE ROOM STOPS
MOVING, RELEASE THE ROOM CONTROL SWITCH
5. Turn the KEY SWITCH to the "OFF" position and remove
the key. The READY TO OPERATE light will go out. The air
IMMEDIATELY. THE ROOM OPERATION WILL HALT.
NOTE: Anytime the KEY SWITCH is on, the room
seal will inflate.
air seal will deflate. The panel is equipped with a room
NOTE: If the Leveling System is being operated, pushing NOTE: If the KEY SWITCH is left "ON" the air seal
will not inflate.
DO NOT FORCE THE ROOM. DO NOT REVERSE
DIRECTION OF THE ROOM. BINDING OF ROOM CAN
CAUSE ROOM DAMAGE. CONTACT HWH CORPORATION
CUSTOMER SERVICE FOR ASSISTANCE.
NOTE: Under normal operation of the room, the direction
of movement should not be reversed. If the movement o
f
the room must be reversed, do not try to re-extend the
room until the room has been fully retracted.
red PUMP ON light goes out.
release the room control switch.
remains on 30 seconds after the room is fully extended
Do not release the ROOM CONTROL SWITCH, until the
automatically shut off. The red PUMP ON light will go out.
If the red PUMP ON light
4. To extend the room, push and hold the ROOM CONTROL
come on. When the room is fully extended, the pump will
SWITCH in the extend position. The red PUMP ON light will
halt the movement of the room.
being pushed a loss of vacuum in the air seal will not
air seal is deflated. While the Room Control Switch is
seal is monitored by a vacuum switch to make sure the
NOTE: The room is equipped with an air seal, the air
2. It is recommended to move the room select switch to
the desired position before turning the panel key switch
on.
is an issue with the air seal manifold, the amber light will
flash rapidly. The room will still function.
select switch. Any time the panel key switch is on, the
air seal for the room indicated by the room select switch
will deflate.
operations, AUTO LEVEL or AUTO STORE. When the room
control switch is released, the automatic leveling system
function will resume.
If the park brake is not set when the room panel key switch
flash twice and turn off. The room will not extend.
is turned on, the amber "READY TO OPERATE" light will
Refer to vehicle manufacturer for proper sequence of
room extension and leveling system operation.

OPERATING PROCEDURES
ROOM RETRACT PROCEDURE
WARNING:
KEEP PEOPLE AND OBSTRUCTIONS
CLEAR OF ROOM WHEN OPERATING.
1. The park brake must be set for the room to be operated.
3. Insert the KEY into the KEY SWITCH on the room
extension operator’s panel and turn it to the "ON" position.
The air seal will deflate. The READY TO OPERATE light
will flash. When the amber light is on steady the room can
4. To retract the room, push and hold the ROOM CONTROL
SWITCH in the "RETRACT" position. The red PUMP ON light
will come on. When the room is fully retracted, the pump will
automatically shut off. The red PUMP ON light will go out.
Do not release the ROOM CONTROL SWITCH until the red
5. Turn the KEY SWITCH to the "OFF" position and remove
the key. The READY TO OPERATE light will go out. The air
IN THE EVENT OF THE FAILURE OF THE ROOM TO
RETRACT, CONTACT HWH CORPORATION CUSTOMER
SERVICE AT 1-800-321-3494 FOR ASSISTANCE.
seal will inflate.
be operated. If the amber light starts to flash rapidly, the
not inflate.
NOTE: If the KEY SWITCH is left "ON" the air seal will
PUMP ON light goes out.
CAUSE ROOM DAMAGE. CONTACT HWH CORPORATION
CUSTOMER SERVICE FOR ASSISTANCE.
DIRECTION OF THE ROOM. BINDING OF ROOM CAN
DO NOT FORCE THE ROOM. DO NOT REVERSE
IMMEDIATELY. THE ROOM OPERATION WILL HALT.
MOVING, RELEASE THE ROOM CONTROL SWITCH
IMPORTANT: IF EITHER SIDE OF THE ROOM STOPS
NOTE: Under normal operation the direction of
movement should not be reversed. If the movement of
the room must be reversed, do not try to retract the
room until the room has been fully extended.
remains on 30 seconds after the room is fully retracted
If the red PUMP ON light
release the room control switch.
MP34.453
1
08MAY1
9
2. The room control panel is equipped with a room select
switch. It is recommended the room select switch is in the
desired position before turning the room panel key switch
to the "ON" position.
NOTE: If the leveling system is being operated, pushing
the room control switch will interrupt leveling system
operations, AUTO LEVEL or AUTO STORE. When the
room control switch is released, the automatic leveling
system function will resume.
If the park brake is not set when the room panel key switch
is turned on, the amber "READY TO OPERATE" light will
flash twice and turn off. The room will not retract.
room will still function. There may be an issue with the air
seal manifold.
room extension and leveling system operation.
Refer to vehicle manufacturer for proper sequence of

OPERATING PROCEDURES
MP34.610
3
10SEP1
4
GENERATOR SLIDE EXTEND PROCEDURE
WARNING:
CLEAR OF SLIDE WHEN OPERATING.
NOTE:Make sure there is adequate clearance to fully extend
the slide. IMPORTANT: Do not hold the GENERATOR SLIDE
CONTROL SWITCH in the "EXTEND" position for more than
ten seconds after the slide is fully extended or stops moving
.
NOTE: Releasing the GENERATOR SLIDE CONTROL
SWITCH will halt the operation of the slide.
GENERATOR SLIDE RETRACT PROCEDURE
3. To retract the slide, press and hold the GENERATOR
SLIDE CONTROL SWITCH in the "RETRACT" position.
When the slide is fully retracted, release the GENERATOR
SLIDE CONTROL SWITCH.
than ten seconds after the slide is fully retracted or stops
CONTROL SWITCH in the "RETRACT" position for more
Do not hold the GENERATOR SLIDEIMPORTANT:
Releasing the GENERATOR SLIDE CONTROL
SWITCH will halt the operation of the slide.
NOTE:
4. If the slide will not retract see the MANUAL SLIDE
RETRACT PROCEDURE.
KEEP PEOPLE AND OBSTRUCTIONS
1. THE PARK BRAKE MUST BE SET FOR THE SLIDE TO
OPERATE.
THE PARK BRAKE MUST BE SET FOR THE SLIDE TO1.
OPERATE.
DO NOT FORCE THE SLIDE.
moving. DO NOT FORCE THE SLIDE.
2. The vehicle ignition does not have to be on to operate the
2. The vehicle ignition does not have to be on to operate
Refer to vehicle manufacturer for location of generator slide control switch.
generator slide.
NOTE: If the ignition is off, there may be a short delay before
the generator slide extends after the generator slide control
switch is pushed.
3. To extend the slide, press and hold the GENERATOR
SLIDE CONTROL SWITCH in the "EXTEND" position.
SLIDE CONTROL SWITCH.
When the slide is fully extended, release the GENERATOR
the generator slide.
the generator slide retracts after the generator slide control
If the ignition is off, there may be a short delay beforeNOTE:
is pushed.

MP34.950
0
20JUN1
4
MANUAL ROOM AND GENERATOR SLIDE RETRACT PROCEDURE
OVERVIEW
1. Retract jacks following the LEVELING SYSTEM
RETRACT PROCEDURE.
2. Locate the HYDRAULIC PUMP and/or MANIFOLD unit.
VALVES are opened and internal pressure is released.
WINCH
WINCH STRAP
WINCH HANDLE
RATCHET LEVER
HOOK
MANUAL RETRACT WINCH
5. Slowly winch the room in by turning the WINCH HANDLE
clockwise. The RATCHET LEVER should produce a loud, sharp
,
clicking noise.
in the hydraulic fluid and make winching more difficult.
WARNING:
ON
OFF
HYDRAULIC PUMP/MANIFOLD
NOTE: The room may move slightly as the SOLENOID
NOTE :
NOTE: Winching the room in quickly will raise pressure
IMPORTANT:
6. When the room is fully retracted, engage the room lockin
g
devices. Leave the retract winch engaged and the solenoid
WARNING: THE ROOM EXTENSION SOLENOID
VALVE RELEASE MUST BE IN THE OPEN POSITION
WHEN THE MANUAL RETRACT WINCH IS ENGAGED.
7. The system should be repaired before using again.
WARNING: A MANUAL RETRACT WINCH PROVIDED
OPERATE THE MANUAL RETRACT
WINCH BY HAND POWER ONLY. IF THE WINCH CANNOT
BE CRANKED EASILY WITH ONE HAND IT IS PROBABLY
OVERLOADED. IF WINCHING BECOMES TO DIFFICULT
STOP AND CHECK FOR OBSTRUCTIONS/RESTRICTIONS
ON THE ROOM AND ROOM EXTENSION MECHANISM.
LEVELING SYSTEM MANIFOLD NOT SHOWN
SOLENOID VALVES
VALVE
RELEASE
NUT 1/4"
CAM
VALVE
RELEASE
3. Open Nut Style Solenoid Valves by slowly turning the
valve release nut counter clockwise using a 1/4" nut driver.
Only open the valves enough to retract NOTE: After repairs are made, when closing the
VALVE RELEASE NUTS, do not over tighten the nuts.
When manually retracting the room, it is recommended
the jacks are retracted before retracting the room.
BY HWH IS EQUIPPED FOR MANUALLY RETRACTING THE
ROOM ONLY. IT IS NOT TO BE USED FOR LIFTING OR ANY
OTHER APPLICATION. HIGH FORCES ARE CREATED WHEN
USING A WINCH, CREATING POTENTIAL SAFETY HAZARDS.
FAILURE TO FOLLOW ALL WARNINGS AND INSTRUCTIONS
MAY CAUSE FAILURE OF THE MANUAL RETRACT WINCH OR
CONNECTIONS RESULTING IN DAMAGE OR PERSONAL INJURY.
MAINTAIN A FIRM GRIP ON THE WINCH HANDLE AT ALL TIMES.
NEVER RELEASE THE HANDLE WHEN RATCHET LEVER IS IN
THE OFF POSITION AND THE WINCH IS LOADED. THE WINCH
HANDLE COULD SPIN VIOLENTLY AND CAUSE PERSONAL
INJURY. CHECK THE WINCH AND STRAPS FOR DAMAGE OR
WEAR, AND CHECK FOR PROPER RATCHET OPERATION ON
EACH USE OF THE WINCH. DO NOT USE IF DAMAGED OR WORN.
the room. DO NOT turn the release nuts more than
4 and 1/2 turns. Turning the nuts more could damage
the valves.
4. Locate the MANUAL RETRACT DEVICE and connect it to
the room according to the vehicle manufacturer’s instructions
.
To extend a WINCH STRAP firmly grasp WINCH HANDLE
,
place RATCHET LEVER in its OFF position, and slowly rotate
the WINCH HANDLE counter clockwise, keeping a firm grip
on the handle. When enough WINCH STRAP is extended,
place the RATCHET LEVER in its ON position and slowly
rotate the WINCH HANDLE clockwise until the
RATCHET LEVER locks.
valves open.
(USE ONLY WHEN THE ROOM WILL NOT RETRACT WITH THE ROOM CONTROL SWITCH)
IMPORTANT: If the vehicle is not equipped with a winch,
DO NOT use other pulling devices to retract the room.
Follow steps 2 and 3 and try pushing the room in.
Contact the vehicle manufacturer or HWH Customer
Service at 1-800-321-3494 or 563-724-3396 for assistance.
The room can be retracted manually if a hydraulic or electric failure
prevents the room from being retracted using the CONTROL SWITCH.
For normal retract sequence see the ROOM SLIDE RETRACT
PROCEDURES. Refer to the vehicle manufacturer for storage
location of the retract device and information for connecting
the device to the room.
Open Cam Style Style Solenoid Valves by following the
instructions located on the last page of this manual
MP84.9999.
Some systems may have a remote manifold.

"UNIVERSAL PLATFORM LEVEL-OUT" ROOM EXTENSION MECHANISM
MANUAL ROOM LIFT PROCEDURES
ML52670/MP34.9559B
13MAY1
5
OPERATING PROCEDURES
"VALVE OPENED" position as shown.
retract solenoid valves by moving the cams to the
Manually open the valve release cams for the extend and
1. Determine which synchronizing cylinder controls the room.
the room, contact HWH Customer Service for assistance
understood or if the room begins to bind DO NOT force
IMPORTANT: If at any stage something is not
1-800-321-3494.
NOTE: Manual room lift procedures must be done before
manual room retraction procedures.
3. Leave the valves opened and refer to the next page
for room retract procedures.
If the pump manifold is equipped with an auxiliary hand pump
,
you may be able to retract the room by opening only the room
retract valve (as labeled by the wiring harness) and operating
the hand pump, refer to the AUXILIARY HAND PUMP
OPERATION page for instructions on the use of the hand
pump and valves equipped with a release cam. If the room
cannot be retracted with the hand pump, it will be necessar
y
to use the lift bolts and room retract screws.
INCORRECT MOVEMENT OF THE CAMS CAN DAMAGE
THE RELEASE CAMS IN THE CORRECT DIRECTION.
ANY DIRECTION ON THE VALVE. MAKE SURE TO MOVE
IMPORTANT: RELEASE CAM MIGHT BE ROTATED TO
THE VALVES.
NOTE: There may be more than one platform lift cylind
er
assembly There is a manual lift bolt for each assembly
.
All lift bolts must be used to lift the room.
2. Use a 13/16 wrench or socket to rotate the lift bolt(s) clockwise
until they are seated in the receiver block.
IMPACT WRENCH TO TURN LIFT BOLTS.
bolt(s) until the room is completely lifted. When there are
multiple lift bolts, alternate evenly between all lift bolts,
turning each bolt two or three complete turns each time.
Turning one lift bolt without alternating may cause
DO NOT USE AN
Continue to turn the
the room to bind.
ROOM EXTENDED
AND DOWN AND DOWN
ROOM EXTENDED
ROOM EXTENDED
AND UP
IN STORED
LIFT BOLT SHOWN ENGAGED WITH LIFT BOLT SHOWN
RECEIVER BLOCKPOSITION
FULLY LIFTED
WITH ROOM
LIFT BOLT SHOWN
RECEIVER
BLOCK
LIFT BOLT
BLOCK
LIFT BOLT
RECEIVER
DO NOT RETRACT LIFT BOLT UNTIL YOU HAVE READ
"EXTENDING ROOM AFTER SERVICE" ON NEXT PAGE
.
ROOM CONTROL MANIFOLD
TO
CLOSE
LOCATED ON SYNCHRONIZING CYLINDER
VALVE
CLOSED
OPENED
VALVE
OPEN
TO
CYLINDER
RETRACT
EXTEND
CYLINDER
RELEASE CAMS

"UNIVERSAL PLATFORM LEVEL-OUT" ROOM EXTENSION MECHANISM
MANUAL ROOM RETRACT PROCEDURES
ML52670\MP34.9561B
23SEP13
OPERATING PROCEDURES
PLATE
RECEIVER
ROOM EXTENDED
ROOM RETRACTED
PLATE
THREADED
manufacturer.
Using wrench provided,
a personal wrench or a tire iron with a 1-1/8" opening rotate
either mechanism’s threaded rod clockwise 6 complete turns.
the front and one for the rear mechanism should be provided.
1. Start both threaded rods until resistance is met, one for
NOTE: To access the threaded plates refer to vehicle
3. Move to the other room extension mechanism, rotate
the room, contact HWH Customer Service for assistance
understood or if the room begins to bind DO NOT force
IMPORTANT: If at any stage something is not
3 and 4 alternating from mechanism to mechanism rotating
each threaded rod 12 complete turns until room is sealed.
(DO NOT exceed 15 ft.lbs) Make sure the room does not bind.
4. Return to the first room extension mechanism and rotate
the threaded rod clockwise 12 complete turns. Repeat steps
the threaded rod clockwise 12 complete turns.
1-800-321-3494.
Do Not use an impact wrench.
THREADED ROD
PLATE
THREADED
THREADED ROD
NOTE: Manual room lift procedures must be done before
manual room retraction procedures.
2.
NOTE: Leave the solenoid valves open, the lift bolts
and threaded rods in place until the room has been
serviced.
EXTERIOR
WALL
COACH
END VIEW OF
ROOM EXTENDED
END VIEW OF
ROOM RETRACTED
WALL
COACH
EXTERIOR
EXTENDING ROOM AFTER SERVICE
1. Room lift bolts should not be retracted yet. Push and
hold the room switch to "RETRACT" for 5 to 10 seconds.
2. Push the room switch to "EXTEND" until the room is within
1 inch of being fully extended. Threaded rods should be
Do not allow room to bind.
3. Retract all lift bolts completely. If room starts to drop,
alternate between lift bolts evenly while turning lift bolts.
4. After lift bolts are retracted, push room switch to
"EXTEND" until room is fully extended and down. If
room dropped while retracting lift bolts, push room
switch to "EXTEND" for 5 to 10 seconds.
5. Retract room with room switch.
the room, contact HWH Customer Service for assistance
1-800-321-3494.
understood or if the room begins to bind DO NOT force
IMPORTANT: If at any stage something is not
IMPORTANT: DO NOT EXTEND THE ROOM UNTIL THE
ROOM HAS BEEN SERVICED. ANY SOLENOID VALVES
LEFT OPEN SHOULD BE CLOSED. THE THREADED
RODS SHOULD BE COMPLETELY REMOVED BEFORE
ROOM IS FULLY EXTENDED. If there is not enough
room to remove both threaded rods completely, alternate
backing the threaded rods out and slightly extending the
room. Be careful to not extend the room so far that the
threaded rods impact the coach wall or the mechanism.
completely removed at this time.

"UNIVERSAL STRAIGHT OUT" ROOM EXTENSION MECHANISM
MANUAL ROOM RETRACTION PROCEDURES - VALVES WITH RELEASE CAMS
MP34.9580A
14MAY14
OPERATING PROCEDURES
PLATE
RECEIVER
ROD
THREADED
ROOM EXTENDED
THREADED
BLOCK
ROOM RETRACTED
BLOCK
THREADED
THREADED
ROD
manufacturer.
the front and one for the rear mechanism should be provided.
2. Start both threaded rods until resistance is met, one for
NOTE: The valve release cam might be rotated in any
NOTE: To access the threaded blocks refer to vehicle
the open position.
retract solenoid valves by moving the valve release cam to
Manually open the valve release cams for the extend and
1. Determine which synchronizing cylinder controls the room. 4. Move to the other room extension mechanism, rotate
the room, contact HWH Customer Service for assistance
understood or if the room begins to bind DO NOT force
IMPORTANT: If at any stage something is not
6. Repeat steps 4 and 5 alternating from mechanism to
mechanism rotating each threaded rod 12 complete
turns until room is sealed. (DO NOT exceed 15
5. Return to the first room extension mechanism and rotate
the threaded rod clockwise 12 complete turns.
the threaded rod clockwise 12 complete turns.
ft.lbs) Make sure the room does not bind.
1-800-321-3494.
Do Not use an impact wrench.
either mechanism’s threaded rod clockwise 6 complete turns.
a personal wrench or a tire iron with a 1-1/8" opening rotate
3. Using wrench provided, threaded rods impact the coach wall or the mechanism.
Be careful to not extend the room so far that the
threaded rods out and slightly extending the room.
threaded rods completely, alternate backing the
NOTE: If there is not enough room to remove both
ROOM HAS BEEN SERVICED. ANY SOLENOID VALVES
RODS SHOULD BE COMPLETELY REMOVED.
LEFT OPEN SHOULD BE CLOSED AND THE THREADED
IMPORTANT: DO NOT EXTEND THE ROOM UNTIL THE
threaded rods in place until the room has been
NOTE: Leave the solenoid valves open and the
serviced.
direction on the valve. Pushing the release cam in the
wrong direction could damage the valve.
ROOM CONTROL MANIFOLD
LOCATED ON SYNCHRONIZING CYLINDER
RELEASE CAMS
TO
CLOSE
OPEN
TO VALVE
CLOSED
OPENED
VALVE
CYLINDER
EXTEND
RETRACT
CYLINDER

MAINTENANCE
MP44.001
8
13NOV1
7
OIL LEVEL
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"
clean. from weathering.
light is important.
position.
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.
ROOM EXTENSIONS
The HWH room 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. Refer to the vehicle manufacturer for
correct maintenance of the room seals.
See ML47149 for proper maintenance of all jacks.
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.

MAINTENANCE
NOT IN PARK/BRAKE CHECK
Apply the brake so the coach cannot roll. Turn the ignition
to the "ACC" or "ON" position. Release the parking brake.
THE COACH WHEELS SECURELY SO THE COACH
CANNOT ROLL FORWARD OR BACKWARD.
WARNING: WHEN MAKING THIS CHECK, BLOCK If any of the above checks or inspections reveal a problem
or if there are other problems or questions, consult a
qualified RV repair center, your vehicle or coach
manufacturer, or HWH CORPORATION
22NOV1
6
MP44.050
2
Push the "AUTO LEVEL" button. The "NOT IN PARK/
BRAKE" indicator light should come on while the "AUTO
LEVEL" button is pushed. Release the "AUTO LEVEL"
for service or repair.
button and set the park brake. The leveling system
should now function.
WINTER WEATHER DRIVING
have dried. This can facilitate corrosion of metallic
continue to absorb moisture from the air even after they
Anti-icing / deicing agents when splashed on your vehicle,
components, such as HWH jacks.
To help reduce the corrosion of jacks after exposure to anti
-
icing / deicing agents, thoroughly wash jacks with warm
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

NOTE: BEFORE OPERATING MANUAL
VALVE RELEASE, READ AND UNDERSTAND
PROCEDURE FOR MANUAL JACK RETRACTION
IN OPERATOR’S INSTRUCTIONS. VALVES MAY
HYDRAULIC LINE CONNECTION DIAGRAM
MP64.3917
17APR19
(WITH 4 STRAIGHT-ACTING JACKS)
PUMP/MANIFOLD
ASSEMBLY
SHUTTLE
VALVE
LEFT
FRONT RIGHT FRONT
RIGHT
REAR
LEFT
REAR
625/725 SERIES LEVELING SYSTEM
BREATHER
CAP
VELOCITY VALVE
NOTE: SOME
MANIFOLDS
ARE EQUIPPED
WITH VELOCITY
VALVES
LF RF
3000PSI
PRESSURE
SWITCH
50PSI
PRESSURE
SWITCH
RRLR
MANIFOLDS MAY HAVE FOUR (4) LARGE
VALVES OR FOUR (4) SMALL VALVES
BE EQUIPPED WITH VALVE RELEASE NUTS OR
RELEASE CAMS.
LARGE AND
SMALL VALVES
WITH RELEASE
NUTS
LARGE AND
SMALL VALVES
WITH RELEASE
CAMS
PRESSURE
3000 PSI
ALTERNATE
SWITCH
LOCATION
NOTE: Load center is
not shown, load center
may need to be removed
to access shuttle valve
and shuttle valve tube.
PRESSURE
CHECK
HERE VALVES (4)
CHECK
OUTER

HYDRAULIC
POWER UNIT
M
RELIEF VALVE
RETURN PRESSURE
SOLENOID MANIFOLD
ASSEMBLY
CHECK
VALVE
INNER
CHECK
VALVE
OUTER
SOL.VALVE
LR SOL.VALVE SOL.VALVE
RFLF
PRESSURE/RETURN
SHUTTLE VALVE
50 PSI
SWITCH
*JACK
PRESSURE
SWITCH
JACK
CYLINDER
LEFT REAR RIGHT REAR
RIGHT
FRONT
LEFT
FRONT
MP64.453
0
29MAR1
0
*3000 PSI
SWITCH
LEVELING SYSTEM
ROOM EXTENSION
MANIFOLD LOCATED HERE
WHEN APPLICABLE
RR
SOL.VALVE
* USED ON AUTOMATIC SYSTEMS ONLY
NOTE: 50 PSI PRESSURE SWITCH
MAY NOT BE USED ON ALL 625 MANIFOLDS
.
3500 P.S.I.
BI-AXIS LEVELING WITH STRAIGHT-ACTING JACKS
625, 625S OR 725 SERIES
HYDRAULIC SCHEMATIC DIAGRAM
800 PSI TO SHIFT