HWH 200 series Installation Manual Download Page 1

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CORPORATION

HWH CORPORATION

2096 MOSCOW ROAD

MOSCOW, IOWA 52760

(800) 321-3494 / (563) 724-3396

INTERNET: http: //www.hwhcorp.com

INSTALLATION MANUAL

HWH HYDRAULIC LEVELING

UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES

SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.

OFF

CAUTION!

5 AMP

FUSE

NOT IN

PARK/

BRAKE

EXTEND

RIGHT

HWH HYDRAULIC LEVELING

"CAUTION"

REMOVING TIRES OR CRAWLING UNDER VEHICLE.

BLOCK FRAME AND TIRES SECURELY BEFORE

UNDERSTAND OPERATOR’S MANUAL BEFORE USING.

REAR

FRONT

LEFT

EXTEND

OPERATE

STORE

REAR

FRONT

STORE

OPERATE

HWH JOY STICK-CONTROLLED

LEVELING SYSTEM

200 SERIES

FOR MOTORHOMES

19MAR01

ML10897/MI35.0006

(ON I-80, EXIT 267 SOUTH)

Summary of Contents for 200 series

Page 1: ...RE REMOVING TIRES OR CRAWLING UNDER VEHICLE OFF CAUTION ON 5 AMP FUSE FUSE NOT IN PARK BRAKE EXTEND RIGHT HWH HYDRAULIC LEVELING CAUTION REMOVING TIRES OR CRAWLING UNDER VEHICLE BLOCK FRAME AND TIRES SECURELY BEFORE UNDERSTAND OPERATOR S MANUAL BEFORE USING REAR FRONT LEFT EXTEND EXTEND EXTEND OPERATE STORE REAR FRONT STORE OPERATE HWH JOY STICK CONTROLLED LEVELING SYSTEM 200 SERIES FOR MOTORHOMES...

Page 2: ...NOTE HWH Corporation assumes no liability for installation of this product CAUTION READ THE ENTIRE INSTALLATION PROCEDURE BEFORE STARTING INSTALLATION BLOCK FRAME AND TIRES 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 DO NOT ...

Page 3: ...structure If the vehicle is equipped with a full air bag suspension an air dump system must be used Vehicles with supplemental air bags or suspensions such as JET AIR do not Are all components necessary for the installation including mounting brackets hardware kits Does the vehicle need exhaust work done before the jacks are installed Does the vehicle have a good set of batteries that are fully ch...

Page 4: ...ounting heights CAUTION VEHICLE WILL RAPIDLY DROP SEV ERAL INCHES IF AIR BAGS DEFLATE DEFLATE AIR BAGS BEFORE WORK ING UNDER THE VEHICLE 4 DEFLATING AIR BAGS the vehicle s frame must be securely blocked The air can be released by disconnecting the air line between the height control valve and the air bag Usually the fitting at the height control valve is easiest to get to See the SUSPENSION AIR DU...

Page 5: ...nents on the vehicle such as axles springs air bags steering linkage etc Kick down jacks may need to be adjusted to allow full extension of the jack in the horizontal position HWH Corporation assumes no liability for damages to the vehicle or jack resulting from jack extension in the horizon tal position Jacks must NOT be exposed to high temperatures such as exhaust pipes If exhaust pipes need to ...

Page 6: ...6 75 MIN 15 5 MAX 17 5 21 5 MIN 2 0 MAX 4 0 MIN 16 5 MAX 18 0 22 0 MIN 3 0 MAX 4 5 MIN 17 5 MAX 19 0 23 5 MIN 3 0 MAX 4 5 MIN 19 75 MAX 21 25 24 75 MIN 3 0 MAX 4 5 8 0 6 5 8 5 8 5 9 0 8 5 8 0 12 5 1 5 4 5 1 5 4 5 1 5 4 5 4 0 4 0 Dimension E is the suggested mounting height Dimension G is the suggested ground clearance when the jack is vertical but not extended If using kick down jacks on vehicles ...

Page 7: ...00 X 13 AP9823 16000 X 16 8 0 9 4 4 9 6 0 6 0 4 9 4 9 8 0 9 4 6 0 9 4 6 0 9 4 6 0 7 0 12 0 7 0 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 8 0 MIN 10 0 MAX 13 0 13 0 13 0 13 0 13 0 13 0 16 0 16 0 16 0 16 0 22 5 22 5 20 0 21 7 25 8 21 9 25 9 22 0 28 5 21 0 23 5 17 0 17 0 21 0 17 0 17 3 17 5 17 5 14 5 0 0 0 0...

Page 8: ...ts Keep welding cables away from electrical systems 5 SPARTAN Disconnect both battery cables ALWAYS DISCONNECT THE GROUND CABLE FIRST Attach the welding ground to the part to be welded Do not use suspension components as ground points Keep welding cables away from electrical systems HWH Corporation does not suggest welding brackets to the frame rails However if any welding is done such as modifyin...

Page 9: ...le to freely fold back to its stored position Straight Acting Jacks wiring harnesses must have enough slack to allow free move ment of the jack There are different lengths of hoses to be routed to the four leveling jacks Refer to the Hydraulic Hookup Diagram Straight Acting Jacks and connect it to the hose fitting 90 degree swivel fittings are available if needed for clearance IMPORTANT A LEAKING ...

Page 10: ...n the front of the jack After connect ing the hose to the fitting the hose should be clamped with a 1 4 bolt to the left side of the pivot bracket Be sure the hose is snug against the jack in the retracted horizontal position Route the hose around the left pivot then across the back side of the cylinder and connect to the actuator fitting Attach the hose to the pivot bracket using a hose clamp The...

Page 11: ...tective sealant such as Kraylon 1307 7 THE MASTER WARNING LIGHT BUZZER Warning Light should be used with all systems A buzzer must be used with systems using straight acting jacks The Master Warning Light should be mounted in the dash in a location highly visible to the driver This light will warn the driver if any of the jacks are down when the ignition is turned to ON Drill a 1 2 hole at the des...

Page 12: ...es with full air bag suspension not on coaches with spring suspensions and air booster bags Most coaches have three height control valves one for the right rear air bag one for the left rear air bag and one for the front two air bags OR one for the two rear bags one for left front air bag and one for the right front air bag An air dump solenoid valve must be teed into the air line be tween each he...

Page 13: ...l wires are securely clamped or tie wrapped 4 Check oil level before operating the system 5 Check Hydraulic circuit a Hoses are connected to corresponding valves and jacks b All fittings for tightness 6 Check Wiring circuits a That color coded wires are hooked properly b All cables are securely fastened c All ground wires are securely fastened to the ground stud PART III ...

Page 14: ...MPONENT INSTALLATION MI35 2025 06OCT95 PART III FLUSH MOUNT DASH PANEL TEMPLATE DASH LINE INDICATES OUTER BEZEL USE ACTUAL BEZEL FOR POSITIONING MOUNTING HOLES 0 4883 3 610 3 250 3 1240 4 6240 5 110 4 750 ...

Page 15: ...ER The ignition switch controls power to these leveling and room extension systems This light illuminates when the ON button is pushed and the parking brake has not been A yellow LEVELING LIGHT indicates the side or end of the coach that is low When the vehicle is level all the LEVELING LIGHTS will be out A red WARNING LIGHT indicates the jacks the WARNING LIGHTS and the POWER ON LIGHT It does not...

Page 16: ...ich may interfere with the operation of the jack FIGURE 12 The stop must be adjusted so that the jack can be fully extended in the horizontal pos ition without interfering with suspension components or tanks etc If the jack stopped short of being vertical the jack went beyond vertical loosen the set screw and turn the adjusting cap counterclockwise After each counterclock wise adjustment the weigh...

Page 17: ...drawing up the corre sponding screw if the sensing unit is mounted above the sur face Bump the sensing unit to see that it has settled down in the level position After all adjustments are made 1 Run the system several times 2 Check the oil level 3 Check the connections and the adjustments one final 4 Show the vehicle owner the correct operation of the 5 Make sure the owner receives an Operator s M...

Page 18: ...ACK RIGHT REAR JACK PRESSURE RETURN HYDRAULIC LINE CONNECTION DIAGRAM MP65 04FEB03 LR 200 210 225 SERIES BI AXIS VALVE NOTE Hose fittings at the pump will come directly out of the pump or if equipped with a room manifold out of the top of the room manifold BREATHER FILLER CAP ...

Page 19: ...R DUMP VALVE IS TO TEE INTO THE LINE BETWEEN THE AIR BAG AND THE HEIGHT CONTROL VALVE THREE HEIGHT CONTROL VALVES ARE THE MOST COMMON ON AIR SUSPENSION SYSTEMS 2 3 OR 4 CONTROL VALVES MAY BE USED USE ONLY DOT APPROVED FITTINGS AND TUBING HEIGHT CONTROL VALVE AIR DUMP SOLENOID VALVES ARE ACTIVATED OPENED BY A 12 SIGNAL SEE ELECTRICAL DIAGRAM FOR CONNECTION FROM WIRE HARNESS B A A B A B A B ...

Page 20: ... B DO NOT REVERSE WIRE LF WHITE 6230 ORANGE LR WHITE GREEN RR WHITE BLACK GRAY RF WHITE DASH 9001 BLUE 9000 LABELED WIRES ARE TO BRAKE LIGHT ON FROM 12 ACC TO PARK BRAKE SWITCH 9000 WARNING SWITCH WARNING SWITCH WARNING SWITCH WARNING SWITCH MP85 1500 20JAN03 FUSE 15 AMP MAX HWH HYDRAULIC LEVELING UNDERSTAND OPERATOR S MANUAL BEFORE USING BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRA...

Page 21: ...ARNESS FROM HARNESS GROUND STUD WIRES ARE LABELED DO NOT REVERSE FROM VALVE NOTE IF THE PUMP BRACKET IS WELDED TO THE WHITE 6230 BLUE 6820 8600 6230 NOTE THE 4 DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS PANEL CONNECTION DIAGRAM SENSING UNIT 5 PIN MTA RIGHT SIDE GREEN REAR RED PARK BRAKE 4 PIN MTA LEFT REAR GREEN 4000 LEFT FRONT ORANGE 1000 RIGHT REAR BLACK 3000 RIGHT FRONT GRAY 2000 WARN...

Page 22: ...G SWITCH WARNING SWITCH WARNING SWITCH WARNING SWITCH B A MP85 1515 02JAN01 AIR DUMP VALVE WITH SUSPENSION AIR DUMP SEE SUSPENSION AIR DUMP DIAGRAM FOR ADDITIONAL EXPLANATION OF AIR DUMP VALVE CONNECTIONS PUMP RELAY HARNESS DIAGRAM CONNECTION SEE PANEL HWH HYDRAULIC LEVELING UNDERSTAND OPERATOR S MANUAL BEFORE USING BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE OFF...

Page 23: ...AY BE REQUIRED CHECK APPLICABLE CODE PUMP MUST BE MOUNTED SOLIDLY TO FRAME SOME PUMPS HAVE A GROUND CABLE THAT IS TO BE ATTACHED TO THE GROUND STUD IF THE PUMP BRACKET IS WELDED TO THE FRAME USE THE GROUND STUD TO ATTACH THE PUMP TO THE BRACKET IF THE PUMP BRACKET IS BOLTED TO THE FRAME USE THE GROUND STUD TO ATTACH THE BRACKET TO THE FRAME GROUND BATTERY FUSE GROUND STUD NOTE 5 PIN MTA SENSING UN...

Page 24: ...TION SWITCH THE POWER MUST COME FROM THE ON SIDE OF THE IGNITION SWITCH NOT THE ACC SIDE SEE FIGURE 2 BELOW BY SUPPLYING IGNITION POWER TO THE WARNING BUZZER AND LIGHT AND ACC POWER TO THE CONTROL PANEL THE SYSTEM MAY BE OPERATED IN ACCESSORY WITHOUT THE BUZZER SOUNDING THE NEGATIVE SIGNAL FOR THE WARNING INDICATORS MUST ALWAYS COME FROM THE CONTROL PANEL CAUTION THE PURPLE WIRE IN THE MASTER WARN...

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