ML21956 - HWH Corporation
Contents
1. O RING DETAILB REFER TO MP85 3038 MI91 209F 24JUN05 TROUBLE SHOOTING PROBLEM SOLUTION FIGURES Part 6 If the check valv is OK or fluid flows from the hose end the room ex DUAL CYLINDER RAIL Continued tension cylinder should be replaced REFER TO MP45 9435 AND MP45 9436 VERTICAL ARM REFER TO MP45 9447 AND MP45 9448 Part 7 The room Check for external oil leaks Replace the retract solenoid valve for creeps in that room extension This is the only possibility that would cause this after being problem extended REFER TO MP85 3038 Part 8 DUAL CYLINDER RAIL The room does not seal tightly when fully re tracted or ex tended The room stops need to be adjusted See the adjustment section of MP45 9412 and MP45 9415 REFER TO MP45 9435 AND MP45 9436 VERTICAL ARM REFER TO MP45 9449 AND MP45 9450 MI91 209K 08MAROO CONTROL IDENTIFICATION ROOM OPERATOR S PANEL KEY SWITCH ON CAUTION HWH CORPORATION HYDRAULIC ROOM EXTENSION UNDERSTAND OPERATOR S MANUAL BEFORE USING KEEP PEOPLE AND OBSTRUCTIONS CLEAR OF ROOM WHEN OPERATING RETRACT EXTEND ROOM CONTROL SWITCH CONTROL FUNCTIONS KEY SWITCH The KEY SWITCH controls power to the ROOM CONTROL SWITCH When the KEY SWITCH is in the ON2. ROOM EXTENSION POWER ADAPTOR PART NUMBER AND SERIAL NUMBER GRAY 7541 OUOU HY BROWN 6120 BLACK 6100 PARK BRAKE BLUE 9000 ACC FUSE SEE ROOM EXTENSION OPERATOR S PANEL CONNECTION DIAGRAM 12 ACC BROWN 6120 ACA ROOM EXTENSION PUMP CONTROL HARNESS L ee 7 77777 TOUCH PANEL CABLE PUMP CONTROL FROM ROOM EKTENSION SLIDE OUT SWITCH NOTE THE 4 WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS OPERATOR S PANEL CONNECTION LABEL MP85 3028 12MAY03 PUMP RELAY WIRING DIAGRAM PUMP RELAY CONNECTION DIAGRAM FROM ROOM FROM LEVELING NOTE THE 4 DIGIT WIRE NUMBER EKTENSION SYSTEM SUPERSEDES ANY AND ALL MANIFOLD GRAY 8600 WIRE COLORS HARNESS RED 6810 CABLE TO NN SS he 4 ECE OO RL III POE SKIS EES SECC WAN NN ROM LEVELING SYSTEM BLACK 6100 SNS ara LEVELING SYSTEM BATTERY LEVELING SYSTEM 5 HARNESS WHITE 6231 BLACK 6100 GRAY 8600 SEE ELECTRICAL CONNECTION DIAGRAM ROOM EXTENSION SYSTEM WHITE 6231 FROM u BATTERY gt
3. ROOM A A EXTENSION MANIFOLD HARNESS 2 55224 I I I I SS 554 MP85 3029 250CT99 ELECTRICAL CONNECTION DIAGRAM ONE ROOM EKTENSION SYSTEM ROOM EKTENSION OPERATOR S PANEL 12 ACC r3 BROWN gt KEY ROOM CONTROL SWITCH 12 25 ROCKER SWITCH 24 V ap SEE DETAIL A 11 24 AH yy 13 26 DETAIL A SEE ELECTRICAL CONNECTION DIAGRAM CONTROL 12 BOX WITH ROOM EXTENSION 12 FROM ojo PUMP RELAY RETRACT SOLENOID RED 6810 VALVE BLACK 5100 gy REE YA GRAY 7541 H BROWN 5 Kx pood KAY KAY KAY KK RRS KK IK EAL KRY KR 2 on EXTEND SOLENOID A EIL AMMO MMA VALVE YELLOW 5000 2 ROOM EKTENSION YA PUMP CONTROL 2 HARNESS NOTE THE 4 DIGIT WIRE NUMBER SSUPERSEDES ANY AND ALL WIRE COLORS Se ROOM EXTENSION YA MANIFOLD HARNESS r LEVELING SYSTEM MANIFOLD MANIFOLD CHECK VALVE SEE DETAIL B i ROOM EXTENSION HYDRAULIC MANIFOLD uem al EXTEND SOLENOID VALVE CAP SPRING Ew O RING DETAIL B NOTE VIEW FROM PUMP END RETRACT SOLENOID VALVE SEE POWER UNIT m 24 HARNESS GROUNDING 4 INSTRUCTIONS 55 DO NOT REVERSE L WIRE COLORS A amp BON PACKARD
4. ROOM EXTENSION MANIFOLD REFER TO MP85 3029 191 2090 08 00 PROBLEM Part 4 The room moves erratically from side to side walk ing as it extends or retracts TROUBLE SHOOTING SOLUTION Check that the pivot bracket is free to pivot Check that the inner tubes are free of paint or undercoating Make sure the room is not binding on the top bottom or sides Check that the hoses between the rod end of the room cylinders and the synchronizing cylinder are the same length and diameter Check that the hoses connected to the cap end of the room cylinders are the same length and diameter Check that the room exten sion mechanisms are not binding Check that the awning is working prop erly If this is all OK contact HWH Customer Service for assistance FIGURES REFER TO MP45 3004 REFER TO MP65 9418 Part 5 The ends of the room do not move at an equal dist ance from the ve hicle Due to variations such as weight and dimensions from end to end of a room it is possible for one end of the room to lead the other when the room is moving If the room seals properly top to bottom and end to end there may not be a problem Make the same checks as in part 4 then call HWH Customer Service for assistance Part 6 The room creeps out after being retracted The following deals with dual cylinder room extensions There are four 4 possibilities A An extend solenoid valve is leaking room ex
5. EXTEND HYDRAULIC LINE CONNECTION DIAGRAM 310 SERIES LEVELING SYSTEM DUAL CYLINDER ROOM EXTENSION SYSTEM W SYNCHRONIZING CYLINDER LF RF RR LEVELING SYSTEM SHUTTLE VALVE VALVE MANIFOLD RELEASE T HANDLES acl 2 RELEASE VALVE RETRACT VALVE ROOM JE E T HANDLES T EXTENSION le ES MANIFOLD LF RF mt 3 16 HIGH PRESSURE HOSE STEEL TARN 1 IMPORTANT THE 3 16 HIGH gx PRESSURE HOSES BETWEEN HYDRAULIC CYLINDER THE STEEL TUBES ROD END OF THE HYDRAULIC CYLINDERS ROD END CAPEND AND THE SYNCHRONIZING CYL lt INDER MUST BE THE SAME LENGTH AND DIAMETER IMPORTANT THE HOSES BETWEEN THE 3 NOTE SOME SYSTEMS CAP END AT THE HYDRAULIC CYLINDERS HAVE 1 8 HIGH PRES AND THE TEE MUST BE THE SAME LENGTH SUREHOSE AND DIAMETER ROD END 3 16 lt HIGH PRESSURE z C NNECTIO 92 3 16 HIGH PRESSURE HOSE m L SECUN zx HYDRAULIC CYLINDER HO
6. SYNCHRONIZING VALVE FIXED TO VEHICLE SYNCHRONIZING VALVE 7 L SA SYNCHRONIZING CYLINDER FIKED TO VEHICLE REAR CYLINDER EN ELS CYLINDER NS EKTEND VALVE VALVE N CYLINDER RETRACT a U RETURN PRESSURE MP65 9455 10NOV03 CONNECTION DIAGRAM 310 325 SERIES LEVELING SYSTEM TOUCH PANEL O STORE HWH HYDRAULIC LEVELING O O ON NOT IN PARK BRAKE 4j OQ O O CAUTION O OFF UNDERSTAND OPERATOR S MANUAL BEFORE USING BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE 7 GROUND 6 PARK BRAKE 5 STORE RETURN 4 FUSED ACCESSORY 3 SWITCHED ACCESSORY TO CONTROL BOX 2 FUSED ACCESSORY TO CONTROL BOX 1 JACK DOWN e STORE 9
7. CORPORATION SERVICE MANUAL FOR MOTORIZED VEHICLES 310 SERIES HYDRAULIC LEVELING SYSTEM SPACEMAKER ROOM EKTENSION SYSTEMS FEATURING Dual Cylinder Rail Room Extension With Synchronizing Cylinder Dual Cylinder Vertical Arm Room Extension With Synchronizing Cylinder HWH CORPORATION On I 80 Exit 267 South 2096 Moscow Road Moscow lowa 52760 Ph 800 321 3494 or 563 724 3396 Fax 563 724 3408 www hwh com 1 21956 191 0017 16 05 SECTION 1 4 2 18008 CURES 2 PART OLDER HOW TO USE MANUAL NOTE This manual will work for systems with single cylinder room extensions also The only difference is the exclusion of synchronizing cylinder problems This manual is written in two sections Section 1 is the Trouble Shooting Guide Section 2 is the figures Begin diagnosis of the system with Section 1 the Trouble Shooting Guide The Trouble Shooting Guide is broken into 3 columns Problem Solutions and Figures Under Problems find the symptom you have encountered The testing and repair for that problem is in the Solution center column Diagrams for a particular Problem and Solution are in the Figures right hand column This column will direct you to the proper figure in Section 2 Figures for a more detailed view Before beginning your repair it is IMPORTANT to read the CAUTIONS and NOTES AND CHECKS in the first section TROUBLE SHOOTING GUIDE In many cases
8. CONNECTION DIAGRAM WHITE 6233 SEE ELECTRICAL CONNECTION DIAGRAM ROOM EXTENSION 2 SYSTEM ROOM EKTENSION MANIFOLD HARNESS MP85 3051 12MAY03
9. ACC position The park brake must be set A red Jack Down Warning Light on the HWH panel must be on A jack must be extended app roximately two inches The key switch on the room operator s panel must be PROBLEM Part 1 The pump will not run when the room ex tension switch SOLUTION Check for 12 at Terminal 24 of the room control switch Refer to MP85 3038 Power is not present on Terminal 24 Check for power on the FIGURES is pushed BROWN 6120 wire from the room extension pump control harness ward EXTEND If power is present the key switch is bad replace the operator s REFER TO 85 3038 and or RE panel If power is not present on the BROWN 6120 wire at the op TRACT erator s panel refer to MP85 3208 Check the connections and the Remember a red WARNING light on the lev eling system touch panel must be on for the pump to run room extension power adapter If the connections are OK and there is 12 power at the power adapter the problem is with the BROWN 6120 wire in the room extension pump control harness Power is present on Terminal 24 Check Terminals 25 and 26 of the room control switch while pushing the switch to extend and re tract If power is not present while pushing the switch replace the switch If power is present check for 12 power on the GRAY 7541 wire from the room extension pump control harness at the control box If
10. 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 ROOM CONTROL SWITCH 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 MP25 9405 30JAN97 MANUAL ROOM RETRACT PROCEDURE WITH SOLENOID VALVES WITH VALVE RELEASE T HANDLES USE ONLY WHEN THE ROOM WILL NOT RETRACT WITH THE ROOM CONTROL SWITCH OVERVIEW 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 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 WARNING THE MANUAL RETRACT WINCH 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 GREATING POTENTIAL
11. Tighten the jam nut 23 Check again for leaks and hose routings Clean any oil spills Reinstall the coach interior ML18750 MP45 9447 27 01 CYLINDER REPLACEMENT VERTICAL ARM ROOM EKTENSION WITH SYNCHRONIZING CYLINDER IMPORTANT HOSES 1 AND 2 BETWEEN THE CAP END OF THE CYLINDERS AND THE PUMP MUST BE THE SAME LENGTH AND DIAMETER HOSES 3 AND 4 BETWEEN THE ROD END OF THE LEVELING SYSTEM MANIFOLD OR FITTINGS NOT SHOWN RETRACT CYLINDERS AND THE SYNCHRONIZING CYLINDER MUST SOLENOID BE THE SAME LENGTH OF 3 16 HIGH PRESSURE HOSE VALVE SOME OLDER SYSTEMS USED 1 8 HIGH PRESSURE HOSE DO NOT MIX 1 8 HIGH PRESSURE AND 3 16 HIGH PRESSURE HOSE VALVE RELEASE ROOM EXTENSION MANIFOLD T HANDLE P EXTEND SOLENOID FITTING A HOSE A TO CAP END OF SYNCHRONIZING CYLINDER TO CAP END OF ROOM EXTENSION CYLINDER 1 8 LINE HOSE 1 HOSE 2 OUT STOP CYLINDER ADJUSTMENT JAM NUT CYLINDER CAP END CYLINDER REPLACEMENT Mkwa MANGU pon BOLT 2 2 BER 9f O S to n ov ME GROOVE ROD END CYLINDER FOR TRUNION MOUNTING NUT 5 BOLT THREADED 6 A A NA ROD END TO SECOND ROOM CAP PIN EXTENSION VERTIC
12. bolts if the chain is loose 1 Loosen the retract stop jam nuts 2 Turn the retract stop adjustment bolts clockwise to adjust the room in and counter clockwise to adjust the room out Both ad justment bolts must be in contact with the stop when adjusted 3 Tighten the retract stop jam nuts when the adjustment is complete Contact HWH CORPORATION Customer Service for assistance at 1 800 321 3494 or 319 724 3396 ML18751 MP45 9449 14SEP99 ROOM ADJUSTMENT PROCEDURES VERTICAL ARM ROOM EKTENSION CHAIN 95 ROOM RETRACTED m O STOP ADJUSTMENT I BOLTS 2 5 P oh i RETRACT STOP c JAM NUT CHAIN ADJUSTMENT NUT CHAIN VERTICAL ADJUSTMENT AU AENT JAM NUT ROOM EXTENDED CYLINDER ROD EXTENDED STOP JAM NUT DETAIL A ROOM EXTENDED STOP ADJUSTMENT DETAIL A END VIEW POINT B DETAIL B VERTICAL ADJUSTMENT ROOM RETRACTED ADJUSTMENT BLOCK WITH SHIMS SHIMS LOWER UL SLOTTED BOLT LOCKNUTS 2 SLOTTED ADJUSTMENT BOLTS 2 Q DETAIL B ADJUSTMENT BLOCK WITH SLOTTED ADJUSTMENT BOLTS ML18751 MP45 9450 11SEP98 FRONT LR
13. power is not present the GRAY 7541 wire is the problem Refer to MP85 3028 Remember the leveling system must operate properly before testing the room extension system Power is present on the GRAY 7541 wire at the control box Pin 1 JACK DOWN WARNING SENSOR of the touch panel cable input MP85 3028 should have a ground present if a red Jack Down Warning Light is on If Pin 1 at the control box has a ground replace the control box If Pin 1 MP85 3028 at the control box does not have a ground check Pin 1 MP85 3007 touch panel cable con nection If Pin 1 at the touch panel has a ground the problem is the touch panel cable Check that the wires at both ends are securely in the connectors If there is no ground at Pin 1 of the touch panel replace the touch panel no 1 sus BROWN REFER TO MP85 3038 REFER TO MP85 3028 1 JACK DOWN WARNING SENSOR TOUCH PANEL CABLE CONNECTION REFER TO MP85 3007 GRAY 7541 m n 34 1 JACK DOWN WARNING SENSOR REFER TO MP85 3028 191 2037 250CT99 PROBLEM Part 2 The pump runs but the room will not extend a The pump runs under no load b The pump runs under a load TROUBLE SHOOTING SOLUTION The retract valve is open Make sure the solenoid valve T handle is closed Check for 12 power on the BLACK 5100 wire at the manifold If power is not present replace the retract
14. the cylinders until they are running fully synchronized CAUTION po Nor TRY TO LINE THE ROOM CYLINDER ROD UP WITH THE MOUNTING HOLE WHILE THE ROD IS EXTENDING 17 Slide the cylinder rod thru the rod mounting plate hole on the inner sliding tube Install the nuts and lock washers on the cylinder cap end mounting plate Turn the cylinder rod inner adjusting nut into place and install the cylinder rod outer adjusting nut Make the nut snug only as a final adjustment will have to be made Do this for the front and rear cylinders IMPORTANT Do not reverse direction of the room until the room is fully extended or retracted 18 Push the room control switch to retract and hold until the room is fully retracted plus 5 seconds Watch for excessive racking of the room Some racking can occur do to air in the System If the room starts to bind up release the room control switch immediately If the room does not bind up proceed to Step 20 If the room is bound up go to Step 19 19 If the room is bound up repeat Steps 2 3 4 and 5 Manually push the room out to its full extension Now repeat Steps 13 16 17 and 18 If the room will still not run properly contact HWH CORPORATION Customer Service at 800 321 3494 or at 563 724 3396 20 Extend the room fully again Do not reverse direction until the room is fully extended Repeat retracting and extending the room several times being careful not to reverse directions until the room is full
15. valve If the retract valve is open the leveling system will not work properly If the retract valve is OK the problem may be the shuttle valve or the pump itself may be bad If there is power on the BLACK 5100 wire unplug the BLACK 5100 wire from Terminal 13 of the room control switch Check Ter minal 13 on the room control switch while pushing the switch toward the EXTEND position If there is power replace the switch If there is no power on Terminal 13 The BLACK 5100 wire in the room ex tension manifold harness is shorted to a 2 supply The extend solenoid valve is not opening While pushing the room control switch toward EXTEND check between the YELLOW 5000 and WHITE 6245 wires of the extend valve plug for 2 power If power is present replace the extend solenoid valve If power is not present check between the YELLOW 5000 wire and ground If power is present repair the WHITE 6245 wire in the plug NOTE Low voltage can cause solenoid valves to not open even though the pump is running NOTE The following checks and test must be performed with the room control switch being pushed and the pump must be running Power is not present on the YELLOW 5000 and WHITE 6245 wires of the extend valve plug Check the WHITE 6245 wire for a good ground connection Check Pin 12 of the room control switch while pushing the switch toward extend If power is present fix the YELLOW 5000 wire in the manifold harn
16. AGES OR INJURIES RESULTING FROM THE INSTALLATION OR REPAIR OF THIS PRODUCT 1 The leveling system must work correctly or the room ex tension will not function properly If the leveling system is not working correctly make the necessary repairs before continuing 2 The following conditions must be met for the room exten sion to operate The ignition must be in the ACC position and the park brake must be set A red Jacks Down Warning light on the HWH Panel must be on 3 If the room extension cannot be retracted see Figures page MP35 9490 for temporary measures Make sure the manual retract valves are closed before trouble shooting If the room will not retract using the manual winch there may be a problem with a room cylinder or the sync cyl DO NOT use alternate devices such as a power winch to retract the room Contact HWH Customer services 1 800 321 3494 for assistance IMPORTANT The room extension will not operate unless a jack is extended enough to turn a Jacks Down Warning light on but the vehicle should NOT be supported by the leveling jacks when working on the room extension 4 Check that the oil reservoir is full with the room and the level ing system in the fully retracted position 5 Batteries should read 12 6 volts Batteries must be in good condition with no weak cells An alternator converter or battery charger will not supply enough power for the system to operate properly 6 Proper ground of al
17. AL END PLATE ARM ASSEMBLY CYLINDER MOUNTING BOLT 2 CAP END HOSE CAP END HOSE 3 512 NOTE NEW TRUNION BOLTS MOUNTING NUTS AND JAM HOSE 3 HOSE 4 NUTS ARE SUPPLIED WITH THE REPLACEMENT _ Q CYLINDER cni SYNCHRONIZING CYLINDER a ROD END CAP END ML18750 MP45 9448 02MAROO THOROUGHLY ROOM ADJUSTMENT PROCEDURE N BEFORE VERTICAL ARM ROOM EXTENSION TAI PROCEEDING VASPASPASPAS IMPORTANT The room should be properly adjusted to fit the vehicle and seal correctly when extended and retracted before leaving the factory Changing adjustments in the field may cause the room to work improperly or change the way paint lines match up This sheet is meant to help make adjustments if a room is damaged or if a room extension mechanism is being replaced Please contact the vehicle manufacturer before making adjustment NOTE If a room extension cylinder is replaced only the room extended stop adjustment should need to be made VERTICAL ADJUSTMENT ROOM EXTENDED CHAIN ADJUSTMENT IMPORTANT This adjustment should never be changed Only make this adjustment if the complete arm assembly is being removed and replaced At no time whether the room is extended or retracted should the chain be be loose 1 Point B should move parallel to the vehicle floor at the same height as point A 2 If Point B should be raised loosen the chain adjustment jam nut and tighten the chain adjustment nut 3 If Point B should be lower
18. ANIFOLD GROUND CHANNEL ON SOME PUMPS SEE HYDRAULIC MANIFOLD PUMP RELAY ELECTRICAL PUMP MOUNTING CONNECTION DIAGRAM x POSITIONS PUMP MANIFOLD HARNESS 2 LOCK WIRES 6 INCHES FROM WHITE 6241 EKTENSION END OF LOOM TO BE SS WHITE 6240 MANIFOLD GROUNDED TO STUD L i WHITE 6230 SEE ELECTRICAL CONNECTION 3 8 16 NUT DIAGRAM ROOM EXTENSION NOTE THE 4 DIGIT WIRE NUMBER SUPERSEDES SYSTEM ANY AND ALL WIRE COLORS WHITE GROUP OF WHITE i ROOM WHITE 6231 HARNESS PUMP MOUNTED REMOTE FROM FRAME USE GROUNDING STUD AND 3 8 EXTERNAL STAR LOCKWASHERS AS SHOWN IMPORTANT 3 8 STAR LOCKWASHERS MUST BE USED BETWEEN GROUNDING SURFACE AND WIRE TERMINALS NOTE THE 4 DIGIT NE u GROUND CABLE WIRE NUMBER STRAP NOT USED N SOME PUMP SUPERSEDES ANY 3 8 EXTERNAL STAR LOCK PYMES AND ALL WIRE WASHERS 4 USED 4 PUMP COLORS MANIFOLD HARNESS A 3 8 16 NUT WHITE 6241 2 USED g 111 2 WHITE 6240 WHITE 6231 GROUND r WHITE 6230 FRAME RAIL STUD oc WHITE 6245 MANIFOLD GROUND SEE HYDRAULIC MANIFOLD PUMP RELAY ELECTRICAL
19. CONNECTORS i EU BLACK YELLOW 5000 5100 WHITE 6245 EC WHITE SEE 6245 PUMP RELAY WIRING RED 6810 qb WHITE 6245 YA EOI VIEW FROM PUMP END MP85 3038 250CT99 ELECTRICAL SCHEMATIC ROOM EKTENSION SYSTEM 12 ACC FROM CONTROL BOX BROWN 6120 RED 6810 15 AMP FUSE ROOM EXTENSION no OPERATOR S PANEL GRAY BOX BLACK 5100 gt YELLOW 5000 ROOM CONTROL SWITCH DPDT P lt 6245 5000 PUMP RELAY CONTACTS 12 CHASSIS BATTERY EXTEND SOLENOID VALVE WHITE BLACK 6245 5100 WHITE YELLOW RETRACT SOLENOID VALVE WHITE GRAY 6231 e 8600 PUMP RELAY M ise LIC PUMP MANIFOLD ASSEMBLY NOTE THE 4 DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS MP85 3042 19JAN99 GROUNDING INSTRUCTIONS POWER UNIT HARNESS 310 325 SERIES TOUCH PANEL CONTROLLED LEVELING SYSTEM WELDED PUMP MOUNT USE GROUNDING STUD AND 3 8 EKTERNAL STAR LOCKWASHERS AS SHOWN IMPORTANT 3 8 STAR LOCKWASHERS MUST BE USED BETWEEN GROUNDING SURFACE AND WIRE TERMINALS 4 GROUND CABLE Se ONG STRAP NOT USED M
20. IZING CYLINDER MUST THE SAME LENGTH HIGH PRESSURE 2 HOSE SOME EARLY SYSTEMS USED 1 8 HIGH PRESSURE HOSE DO m MIX 1 8 HIGH PRESSURE AND 3 16 HIGH PRESSURE HOSE HOSE 2 jm OUTER ROOM SEN ROOM EXTENSION OUT STOP TUBE HOSE 3 ADJUSTMENT 7 3 16 HIGH PRESSURE HOSE WE INNER ROOM TIGHTENING OF HOSE ENDS IF TIGHTENING A NEW HOSE END EXTENSION LOCK WASHERS MAKE THE HOSE END SNUG FINGER TIGHT ON THE FITTING TUBE OLDER UNITS MAY THEN TIGHTEN THE HOSE END 1 3 TURN 2 FLATS IF NOT HAVE LOCK TIGHTENING AN EXISTING HOSE END TIGHTEN THE HOSE END m WASHERS SNUG PLUS 1 4 TURN 1FLAT ADJUSTING NUT INNER OUT STOP CYLINDER MOUNTING ADJUSTING NUT PLATE CYLINDER MOUNTING PLATE NUT ROD END 1 8 HIGH PRESSURE HOSE CONNECTION HOSE S CAPEND s CYLINDER VIEW B MOUNTING NUT VIEW A CYLINDER MOUNTING ML16463 MP45 9436 PLATE NUT 30JANO1 J INSTRUCTIONS THOROUGHLY A BEFORE PROCEEDING SSS A w S 252525252525 m lt 292024 AAAA READ ROOM EXTENSION CYLINDER REPLACEMENT DUAL CYLINDER VERTICAL ARM WITH SYNCHRONIZING CYLINDER 2250 WITH ROOM EXTENSION MANIFOLD IMPORTANT The following instructions must be followed or air lo
21. PUMP 10 LEFT FRONT 11 LEFT REAR 12 RIGHT REAR 13 KEY N C 14 RIGHT FRONT 15 WARNING TOUCH PANEL SENSOR CABLE CONNECTIONS RED REAR 1 GREEN RIGHT SIDE 2 SERENO BLACK FRONT 3 l UNIT YELLOW LEFT SIDE 4 INPUTS WHITE COMMON 5 9 BLANK 1 LEFT REAR GREEN 4000 8 CONTROL BROWN 7699 2 RIGHT REAR BLACK 3000 WARNING 7 12 PURPLE 6121 3 RIGHT FRONT RED 2000 SWITCH 6 BLANK 4 LEFT FRONT YELLOW 1000 INPUTS VAA 5 COMMON WHITE 6235 WARNING INDICATOR NOTE ALL WIRE CONNECTIONS WILL POINT PIGTAIL AWAY FROM THE PANEL WHEN PLUGGED IN NOTE THE 4 DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS MP85 3007 12MAY03 2 RIGHT REAR ORANGE 3400 PRESSURE SWITCH BLACK 8100 10 GROUND WIRE WHITE 6230 ELECTRICAL CONNECTION DIAGRAM CONTROL BOX 310 325 SERIES TOUCH PANEL CONTROLLED LEVELING SYSTEM WITH ROOM EXTENSION LEFT REAR BROWN 4400 LEFT FRONT BLUE 1400 RIGHT FRONT GREEN 2400 LEFT REAR FUSE PUMP GRAY 8600 10 POWER WIRE LEFT FRONT FUSE RIGHT FRONT FUSE RIGHT REAR FUSE POWER HARNESS 6420 12 ACCESSORY 1 JACK DOWN WARNING SENSOR TOUCH PANE CABLE INPUT 15 PIN 4
22. SAFETY HAZARDS FAILURE TO FOLLOW ALL CAUTIONS AND INSTRUCTIONS MAY CAUSE FAILURE OF THE MANUAL RETRACT WINCH OR CONNECTIONS RESULTING IN DAMAGE OR PERSONAL INJURY MAINTAIN 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 GOULD 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 1 Retract jacks following the LEVELING SYSTEM RETRACT PROCEDURE NOTE When manually retracting the room make sure the jacks are retracted before retracting the room 2 Locate the HYDRAULIC PUMP MANIFOLD unit SOLENOID VALVES I HANDLES 1 HYDRAULIC PUMP MANIFOLD 3 Open the SOLENOID VALVES by turning the T HANDLES counterclockwise NOTE The T HANDLE may turn easily at first but will become more difficult to turn as an internal spring is compressed Be sure to open both valves completely about six turns of the T HANDLE NOTE The room may move slightly as the SOLENOID VALVES are opened and internal pressure is released 4 Locate the MANUAL RETRACT WINCH and connect it to the room according to the vehicle manufacturer s instructions To exte
23. SE CONNECTION AT REAR OF ROD END ROOM EXTENSION TUBE DUAL CYLINDER ROOM EXTENSION N LR RR pa L lm p MP65 3004 18JAN99 HYDRAULIC CONNECTION DIAGRAM VERTICAL ARM ROOM EKTENSION WITH SYNCHRONIZING CYLINDER LEVELING I SYSTEM O MANIFOLD TO SYNC La CYLINDER EXTEND VALVE RETRACT VALVE VIEW FROM MOTOR END OF PUMP HYDRAULIC LINE ROD END OF CYLINDER 3 16 HIGH PRESSURE IMPORTANT WHEN REPLACING THE HYDRAULIC HOSES EXACT DIAMETER AND LENGTHS MUST BE MAINTAINED DO NOT REPLACE AN 1 8 HIGH PRESSURE HOSE WITH A 3 16 HIGH PRESSURE HOSE NOTE HYDRAULIC PUMP SHOWN WITH ROOM EXTENSION MANIFOLD ONLY OTHER MANIFOLDS MAY BE MOUNTED ON TOP TOP VIEW OF PUMP ab e THESE TWO HOSES MUST BE THE SAME d LENGTH THESE 1 8 LINES CONNECT TO THE CAP END OF THE CYLINDERS ROD END OF CYLINDER 3 16 HIGH PRESSURE HYDRAULIC LINE THESE TWO HOSES MUST BE THE SAME LENGTH SYNCHRONIZING CYLINDER MP65 9418 21MAR00 HYDRAULIC FLOW DIAGRAM VERTICAL ARM OR DUAL CYLINDER ROOM EKTENSION WITH SYNCHRONIZING CYLINDER STATIONARY POSITION FRONT CYLINDER
24. ck of the synchronizing cylinder and unsynchronized operation of the room cylinders may result causing damage to the room Please read the instructions before replacing the cylinder DO NOT reverse direction of the room unless the room is fully extended or retracted NOTE Do not remove the caps from the new cylinder hose connections until you are ready to reattach the hoses Save the caps 1 Extend the room fully Support the outer edge of the room so that the room cannot sag when the room extension arms are disconnected 2 Loosen the extend valve T handle Valve release nut 3 Loosen the retract valve T handle Valve release nut 4 Remove coach equipment and panels to gain access to the front and rear room extension arm assemblies Protect the coach interior from possible oil spillage 5 Remove the pin plate from both room extension arms This will allow both arms to move separately from the room IMPORTANT Step 5 must be done to protect the room from being damaged while bleeding air from and synchronizing the the room cylinders NOTE Only the faulty cylinder is to be removed from the room extension arm 6 Remove and cap the hose from the rod end of the cylinder that is to be removed Cut the wire ties holding the hose to the cylinder There may be some pressure on the hoses 7 Remove the four cylinder mounting bolts 8 Work the cylinder out of the arm assembly Remove and cap the hose from the cap end of the cyl
25. ed loosen the chain adjustment jam nut and loosen the chain adjustment nut 4 Tighten the chain adjustment jam nut when the adjustment is complete VERTICAL ADJUSTMENT ROOM RETRACTED Make this adjustment if the room is not properly positioned up and down with the coach when the room is fully retracted 1 There are two possible ways to make this adjustment The bearing adjustment block is either shimmed or it has slotted bolt adjustments 2 If the block is shimmed add more shims as needed to lower the room Remove shims if the room needs to be raised 3 If the block has slotted bolts for adjustment loosen the lower slotted bolt lock nut and turn the slotted end of the bolt clockwise to raise the room and counter clockwise to lower the room 4 Tighten the slotted bolt lock nut when the adjustment is complete ROOM EXTENDED STOP ADJUSTMENT Make this adjustment if the room is not properly sealed or if the interior trim is not properly positioned when the room is fully ex tended 1 Loosen the extended stop jam nut 2 Use a 5 16 hex key to turn the cylinder rod clockwise to move the room out or counter clockwise to move the room in 3 Tighten the extended stop jam nut when the adjustment is complete ROOM RETRACTED STOP ADJUSTMENT Make this adjustment if the room is not properly sealed or the outer room wall is not flush with the outside of the coach NOTE The chain should not be slack in the retracted position Readjust the retract stop
26. ess If power is not pre sent on Pin 12 check Pin 11 of the room control switch If power is present replace the switch If power is not present on Pin 11 check the RED 6810 wire in the room manifold harness for 412 power If power is present the key switch is bad replace the room operators panel If power is not present on the RED 6810 wire check the 15 amp fuse on the RED 6810 wire of the manifold harness at the pump relay If the fuse is not blown the problem is the RED 6810 wire If the fuse is blown unplug the extend and retract solenoid valves Replace the fuse and retry If the fuse blows replace the room extension manifold harness If the fuse does not blow plug the extend valve in and retry If the fuse blows replace the extend solenoid valve If the fuse does not blow replace the retract solenoid valve FIGURES RETRACT SOLENOID VALVE BLACK 5100 WHITE 6245 REFER TO MP85 3038 25 24 LL P Tg asl REFER 85 3038 A oc T EXTEND SOLENOID VALVE WHITE 6245 YELLOW 5000 REFER TO MP85 3038 ROOM EXTENSION MANIFOLD REFER TO MP85 3029 MI91 2085 08 00 PROBLEM Part 3 The pump runs but the room will not retract a The pump runs under no
27. fitting A 18 Push and hold the room control switch to RETRACT until both arm assemblies are fully retracted The new cylinder may not retract until the other arm is fully retracted 19 Repeat extending and retracting the arms fully at least 3 more times or until the arms are completely synchronized Do not go from RETRACT to EXTEND until the arms are fully retracted Do not go from EXTEND to RETRACT until the arms are fully extended Check that there are no leaks and that hose routings are ok 20 Reattach the arms to the room with the pin plates 21 Retract the room watching carefully that the room does not bind up If the room binds up DO NOT try to extend the room Remove the pin plates and manually push the room out and support it Repeat Steps 18 thru 20 If the room will still not work properly call HWH CORPORATION Customer Service at 800 321 3494 or at 563 724 3396 22 If the room works properly extend and retract the room several times Watch carefully that the room does not extend too far Check that the room seals are properly compressed with the room extended If the room needs to extend more loosen the out stop cylinder adjustment jam nut Use an allen wrench to turn the rod clockwise until the room is seated properly Tighten the jam nut If the room is extended too far loosen the out stop cylinder adjustment jam nut and use an allen wrench to turn the rod counterclockwise until the room is properly seated
28. he WHITE 6245 wire for a good ground connection Check Pin 13 of the room control switch while pushing the switch toward retract If power is present then fix the BLACK 5100 wire in the manifold harness If power is not present on Pin 13 check Pin 11 of the room control switch If power is pres ent replace the switch If power is not present on Pin 11 check the RED 6810 wire in the room manifold harness for 12 power If power is present the key switch is bad replace the room operator panel If power is not present on the RED 6810 wire Check the 15 amp fuse on the RED 6810 wire of the manifold harness at the pump relay If the fuse is not blown the problem is the RED 6810 wire If the fuse is blown unplug the extend and retract solenoid valves Replace the fuse and retry If the fuse blows replace the room extension manifold harness If the fuse does not blow plug the retract valve in and retry If the fuse blows replace the retract solenoid valve If the fuse does not blow replace the extend sol enoid valve FIGURES RETRACT SOLENOID VALVE BLACK 5100 T WHITE 6245 A REFER TO MP85 3038 26 LI Tg asl REFER 85 3038 SOLENOID VALVE WHITE 6245 YELLOW 5000 REFER TO MP85 3038
29. inder IMPORTANT DO NOT PULL THE CYLINDER ROD OUT OF THE NEW CYLINDER INSTALL THE NEW CYLINDER WITH THE ROD RETRACTED AS IT WAS SHIPPED 9 Install the new cylinder First attach the proper hose to the cap end of the cylinder Do not over tighten the fittings Tightening of hose ends If tightening a new hose end make the hose end snug finger tight on the fitting then tighten the hose end 1 3 turn 2 FLATS If tightening an existing hose end tighten the hose end to snug plus 1 4 turn 1 FLAT 10 Install the cylinder into the arm assembly Make sure the cap end hose is properly routed over the pivot pin as shown in the drawing 11 Install the cap end trunion bolts Make sure the bolts are properly seated into the groove at the cap end of the cylinder 12 Attach the rod end hose to the cylinder Do not over tighten the fitting Wire tie the hose to the cylinder so it will not bind or be cut be the arm assembly 13 Pull the arm assembly together and attach the rod end cylinder mounting nut to the arm 14 Remove hose A from the pump Remove the breather cap and direct hose A into the tank Cap fitting A with a steel cap from the replacement cylinder 15 Close the extend and retract valve T handles Valve release nuts 16 Push and hold the room control switch to EXTEND until the new cylinder is fully extended plus 3 to 5 seconds Watch carefully that the cylinder does not extend too far 17 Reattach hose A to
30. ing nut and lock washer completely onto the threaded rod of the new cylinder IMPORTANT DO NOT PULL THE CYLINDER ROD OUT OF THE NEW CYLINDER INSTALL THE NEW CYLINDER WITH THE ROD RETRACTED AS IT WAS SHIPPED IMPORTANT BEFORE INSTALLING THE NEW CYLINDER CLEAN ALL EXCESS OIL FROM THE ROOM EXTENSION TUBE SWAB THE TUBE THOROUGHLY WITH A MILD SOLVENT AND RAGS EXCESS OIL LEFT IN THE TUBE MAY LEAK OUT GIVING THE APPEARANCE OF A LEAKY CYLINDER OR HOSE CONNECTION 10 Install the new cylinder in the room extension tube DO NOT install the two cylinder cap end mounting plate nuts and washers 11 Attach the hoses to the cylinder Do not over tighten the hose ends See MP45 9436 for tightening of hoses 12 Remove Hose A from the room extension manifold Use a cap from the new cylinder to cap the fitting in the manifold Direct Hose A into the fluid reservoir 13 Close the extend amp retract valve T handles Valve release nuts 14 Push and hold the room control switch to EXTEND until the new cylinder is fully extended plus five seconds NOTE The cap end of the cylinder will push the cylinder cap end mounting plate off the room extension tube This is ok 15 Reattach Hose A to the room extension manifold 16 Push and hold the room control switch to RETRACT until both cylinders are fully retracted plus 5 seconds Extend and retract the cylinders at least twice or until they are running fully synchronized DO NOT reconnect
31. l components is critical See the elec trical circuit for specific grounds required Faulty grounds especially for the solenoid manifold or the pump assembly may cause component damage and or improper or erratic operation This manual is intended for use by experienced mechanics with knowledge of hydraulic and automotive electrical systems People with little or no experience with HWH Room Extension systems should contact HWH technical service 800 321 3494 before beginning Special attention should be given to all cautions wiring and hydraulic dia grams Tightening of hose ends If tightening a new hose end make the hose end snug finger tight on the fitting then tighten the hose end 1 3 turn 2 FLATS If tightening an existing hose end tighten the hose end to snug plus 1 4 turn 1 FLAT Suggested tools for trouble shooting the HWH room extension systems JUMPER WIRES UP TO 10 GAUGE PRESSURE GAUGE 3500 PSI MIN MULTI METER 12 VOLT TEST LIGHT PROCEED WITH THE TROUBLE SHOOTING STEPS ON THE FOLLOWING PAGE MI91 103F 25APR11 TROUBLE SHOOTING The following is a list of possible problems and solutions which might occur to room extensions Only qualified technicians should install or repair room extension systems An understanding of the operation of the room extension hydraulic and elec trical components is required The following conditions must be met for the room extension to operate The ignition must be in the
32. load b The pump runs under a load TROUBLE SHOOTING SOLUTION The extend valve is open Make sure the solenoid valve T handle is closed Check for 12 power on the YELLOW 5000 wire at the manifold If power is not present replace the extend valve If the extend valve is OK the problem is the shuttle valve on the lev eling system manifold or the pump is bad If there is power on the YELLOW 5000 wire unplug the YELLOW 5000 wire from Terminal 12 of the room control switch Check Ter minal 12 on the room control switch while pushing the switch toward the RETRACT position If there is power replace the switch If there is no power on Terminal 12 the YELLOW 5000 wire in the room extension manifold harness is shorted to a 412 supply The retract solenoid valve is not opening While pushing the room control switch toward RETRACT check between the BLACK 5100 and WHITE 6245 wires of the retract valve plug for 12 power If power is present replace the retract solenoid valve If power is not present check between the BLACK 5100 wire and ground If power is present repair the WHITE 6245 wire in the plug NOTE Low voltage can cause solenoid valves to not open even though the pump is running NOTE The following checks and test must be performed with the room control switch being pushed and the pump must be running Power is not present on the BLACK 5100 and WHITE 6245 of the retract valve plug Check t
33. nd the WINCH STRAP firmly grasp WINCH HANDLE place RATCHET LEVER in its OFF position and slowly rotate the WINCH HANDLE counterclockwise 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 WINCH STRAP RATCHET LEVER WINCH HANDLE 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 NOTE Winching the room in quickly will raise pressure in the hydraulic fluid and make winching more difficult WARNING operate THE MANUAL RETRACT WINCH BY HAND POWER ONLY IF THE WINCH CANNOT BE CRANKED EASILY WITH ONE HAND IT IS PROBABLY OVER LOADED IF WINCHING BECOMES TOO DIFFICULT STOP AND CHECK FOR OBSTRUCTIONS OR RESTRICTIONS ON THE ROOM AND ROOM EXTENSION MECHANISM 6 When the room is fully retracted engage the room locking devices Leave the retract winch in place WARNING THE ROOM EXTENSION SOLENOID VALVE T HANDLES MUST BE IN THE OPEN POSITION WHEN THE MANUAL RETRACT WINCH IS ENGAGED 7 The system should be repaired before using again MP35 9490 02FEB12 b b e A 1 9 P Eoo PROCEEDING VASPASPASPASPASPAS ROOM EXTENSION CYLINDER REPLACEMENT DUAL CYLINDER ROOM EXTENSION WITH SYNCHRONIZING CYLINDER IMPORTANT The following instructions mus
34. t be followed or air lock of the synchronizing cylinder and unsynchronized operation of the room cylinders may result causing damage to the room Please read the instructions before replacing the cylinder DO NOT reverse direction of the room unless the room is fully extended or retracted 1 Extend the room fully There is an access hole on the inner sliding tube to access the cylinder rod mounting nuts If the room cannot be fully extended the inner sliding tube access hole must be extended far enough to access the cylinder rod mounting nuts 2 Loosen the extend valve T Handle Valve release nut 3 Loosen the retract valve T Handle Valve release nut 4 Remove the two nuts and washers from the cylinder cap end mounting plate for both the front and rear room cylinders IMPORTANT Steps 4 and 5 must be done to protect the room from being damaged while bleeding air from and synchronizing the the room cylinders 5 Remove the cylinder rod outer out stop adjusting nut for both the front and rear room cylinders 6 Remove and cap the hoses at the end of the cylinder that is to be replaced 7 Remove the cylinder that is to be replaced from the room extension tube NOTE Do not remove the caps from the new cylinder hose connections until you are ready to reattach the hoses Save the caps 8 Remove the cylinder cap end mounting plate from the old cylinder and attach it to the new cylinder 9 Install the inner out stop adjust
35. tension cylinder has an internal leak The manifold check valve is leaking D External oil leak Note If the room creeps out 1 inch or less the problem is most likely the check valve If only one side of the room creeps out replace the room cylinder for the side that creeps out If both sides creep out do the following tests If the tests are not conclusive replace the extend solenoid valve for the room Check the o rings at the end of the valve If the o rings are dam aged there may be a problem with the manifold Retract the room completely Remove the hydraulic line for the cap end of the cylinder at the manifold Hold the hose end in an upright position Press the rocker switch for that room to the RETRACT position If fluid flows from the manifold fitting the extend solenoid valve needs to be changed If no fluid flows from either the hose end or the manifold fittings in spect the manifold check valve There is a spring below the cap DO NOT lose the spring Check for cuts on the poppet O ring Check the poppet and cap for burrs The poppet should easily slide in the cap REFER TO MP45 3004 REFER TO MP65 9418 EXTEND SOLENOID VALVE Wan J WHITE 6245 Qt YELLOW 5000 REFER TO MP85 3038 MANIFOLD CHECK VALVE EXTEND SOLENOID VALVE MANIFOLD CHECK
36. this will save time and mistakes when trouble shooting a system This Repair Manual is offered as a guide only It is impossible to anticipate every problem or combination of problems For any problems encountered that are not addressed in this manual contact HWH Corporation for assistance 800 321 3494 The room should be fully retracted before Trouble Shooting the system If the room will not retract use the manual retract pro cedure on pages MP35 9490 Make sure all room locks and the manual retract winch are not engaged before trouble shooting the system PROCEED WITH TROUBLE SHOOTING GUIDE MI91 101F 09MAROO TROUBLE SHOOTING WARNING BLOCK FRAME AND TIRES SECURELY BEFORE CRAWLING UNDER VEHICLE DO NOT USE THE 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 WHEN ROUTING OR REROUTING HYDRAULIC HOSES AND WIRES BE SURE THEY ARE NOT EXPOSED TO ENGINE EXHAUST OR ANY HIGH TEMPERATURE COMPONENTS OF THE VEHICLE NEVER PLACE HAND OR OTHER PARTS OF THE BODY NEAR HYDRAULIC LEAKS OIL MAY CUT AND PENETRATE THE SKIN CAUSING INJURY OR DEATH SAFETY GLASSES ARE TO BE WORN TO PROTECT EYES FROM DIRT METAL CHIPS OIL LEAKS ETC FOLLOW ALL OTHER SHOP SAFETY PRACTICES NOTES AND CHECKS Read and check before proceeding with Trouble Shooting Steps NOTE HWH CORPORATION ASSUMES NO LIABILITY FOR DAM
37. y extended or retracted 21 With the room fully extended check seals for proper compression If the seal is not compressed or needs more compression loosen the cylinder rod outer adjusting nut and tighten the cylinder rod inner adjusting nut If the seal is compressed too much loosen the cylinder rod inner adjusting nut and tighten the cylinder rod outer adjusting nut 22 Check all hose connections and mounting nuts and bolts for tightness and leaks ML16463 MP45 9435 27NOV01 CYLINDER REPLACEMENT DUAL CYLINDER ROOM EKTENSION WITH SYNCHRONIZING CYLINDER NOTE ROD AND CAP END HOSE CONNECTIONS RETRACT SOLENOID WILL BE THE SAME FOR MULTIPLE ROOM VALVE EKTENSIONS VALVE RELEASE s T HANDLES HEN O EXTEND SOLENOID A VALVE THIS LINE ROOM EXTENSION MANIFOLD kaba THE TANK CAP THIS FITTING HOSE 4 e E STOP i5 ADJUSTMENT VIEW A VIEWB gt 3 16 HIGH PRESSURE HOSE 2 IMPORTANT HOSES 1 AND 2 BETWEEN THE CAP END OF THE HOSE 1 z CYLINDERS AND THE PUMP MUST BE THE SAME LENGTH AND DIAMETER 6 9 HOSES 3 AND 4 BETWEEN THE ROD END OF THE CYLINDERS AND THE SYNCHRON
Download Pdf Manuals
Related Search