Operation Manual for Automatic Leveling Systems © 11/12 Power Gear #82-L0379 Rev. 0E Operation Manual for Automatic Leveling Systems with Touch Pad # 140-1226 and Control Box # 140-1229 Contents Before You Level Your Coach Before You Level Your Coach 1 Operating Instructions 2 Retracting Your Leveling Jacks 3 1. Engine must be running, the park brake must be set, and the transmission in “park” (”neutral” for diesel coaches) for the jacks to operate. Manually Operating Your Leveling Jacks 3 2. Check leveling site to make sure obstructions have been cleared away for proper jack operation. Preventative Maintenance 4 Troubleshooting Charts 5 Manual Override Valves 8 ! CAUTION • Keep people clear of coach prior to turning the leveling system on and while leveling system is in use. • Never expose hands or other parts of the body near hydraulic leaks. High-pressure oil leaks may cut and penetrate the skin causing serious injury. • If your coach is equipped with a slide out(s), always level your unit first, and then operate the slide out room(s). When retracting the slide(s), always retract the room(s) first then retract the leveling jacks. Following this procedure will produce the least amount of stress on your chassis. • Please read the owners manual from the manufacturer who built and designed your motor home for further leveling and slide out room operating information and safety features. ! WARNING This is a leveling system only and is not intended to lift your coach’s tire or tires completely off the ground. Attempting to lift your coach completely off the ground (for example to use this leveling system to change a tire) could cause damage to the system and serious injury to the parties involved. If a tire should require changing please have the proper equipment and contact a professional. Do not use a high pressured wash/rinse system on any of the components associated with the leveling system. This includes the pump, pump motor, wiring harness, control, and touchpad. The use of a high pressure wash/rinse system will void the warranty. Auto Level Operation Manual Page 2 Operating Instructions Leveling Your Coach 1. Turn on the ignition and start the coach. Your leveling control will start a self check sequence indicated by the lights on the panel blinking in a rotating pattern. It will turn off when it has finished its self check. 2. Push the “On/Off” button on the control panel. The system is now operational and “On/Off” LED will turn on. (On some controls, there will be a 10 second wait period before operation is allowed. During this time, the wait light will flash.) Note: Check to see that the Low Voltage light is not illuminated. If so, start the engine and wait a few minutes to ensure that the battery voltage is good. The engine must be running for the jacks to operate. 3. Check to see that the engage park brake light is not illuminated. If so, engage the parking brake. (Your coach will have to be in neutral or park to operate the system.) 4. Push the “AUTO” button. The automatic leveling system will begin its leveling procedure. Please avoid movement in the coach during automatic leveling as it can cause errors in the results. It will signal that it has completed the process by illuminating the center green “Power Gear LEVEL” light. Check to make sure that all jacks are on the ground. Also check to make sure that no tire is off the ground. If so, your leveling process is complete. If further adjustments are needed, or one or more tires are off the ground, retract all jacks and refer to the “Manual Operation” section of this manual. 5. You can then turn the system off by pushing the On/Off button again. Page 3 Auto Level Operation Manual Retracting Your Leveling Jacks 1. Turn on the ignition and start the coach. 2. Turn on the system by pushing the “On/Off” button. The system is now operational and the “On/Off” LED will turn on. 3. Push the “RETRACT-ALL JACKS” button. When the “JACKS DOWN” light turns off, visually check to make sure that all jacks have fully retracted. If so, your coach leveling system is ready to travel. ! NOTE The right and left rear jacks are used to level the coach side to side. Pushing the “LEFT” button on the control panel will extend the left rear jack. Pushing the “RIGHT” button on the control will extend the right rear jack. ! NOTE If the “Wait” LED is ever flashing by itself, it means the control is busy and you cannot operate the jacks. After a short period of time (from 5 to 30 seconds), the “WAIT” LED will go off again, and you can resume operation as normal. Manually Operating Your Leveling Jacks Leveling Your Coach There are certain conditions where manually leveling your coach may be desirable. Conditions where large amounts of side to side leveling are necessary or when one or more tires are off the ground at the end of the auto-level sequence, it may work better using the manual leveling procedures that follow: 1. Turn on the ignition and start the coach. 2. Push the “On/Off” button to turn on the system. 3. Push and hold the “MAN” button for 5-7 seconds in order for the system to switch to the manual mode. It will signal that it is in the manual mode when the light under the “MAN” button is illuminated. 4. Push “FRONT” button until the front of the coach rises at least 3”. This is important and necessary to allow the coach to pivot when leveling side to side. If there is insufficient jack stroke to lift the front of the coach at least 3 inches, the coach will have to be moved to an area with less front to back slope, or a weight distribution block will have to be placed under the jack. 5. Push the “REAR” button until jacks contact the ground. 6. Level the coach from front to rear by pushing the “REAR” button if the light under the “REAR” button is illuminated. If the light is illuminated above the “FRONT JACKS” button, push the “FRONT” button. In either case, keep button depressed until the green center “LEVEL ” light is illuminated, or both front and rear lights are dark. 7. Level the coach from side to side by pushing the “RIGHT” button if the light beside the”RIGHT” button is illuminated. If the light beside the ”LEFT” button is illuminated, push the “LEFT” button until the “LEVEL” light is illuminated. 8. Repeat steps 6 and 7 if needed. 9. Turn power off to leveling system by pushing “ON/OFF” button. 10. Visually inspect jack to ensure all pads are touching ground. Should one of the rear jacks not be touching the ground, press the corresponding left or right rear jack buttons to lower the appropriate jack to the ground. Never lift the wheels off the ground to level the coach. This can lead to an unsafe condition and damage to the leveling system or coach. 11. If a level condition cannot be reached or one or more tires are off the ground at the completion of leveling, retract the leveling jacks and move the coach to a different location or change its orientation to achieve a more level starting position and repeat steps 1 through 10. 12. If a level condition cannot be obtained with the previous steps, level the coach as much as possible while maintaining tire contact with the ground. Auto Level Operation Manual Page 4 Preventative Maintenance 1. Check and/or fill the reservoir with the jacks and room(s) in the fully retracted position, each month. The fluid should be one inch onto the dipstick (on models so equipped) or to the bottom of the fill port on models without dipsticks. 2. Change fluid every 24 months. 3. Inspect and clean all hydraulic pump electrical connections every 12 months. 4. Remove dirt and road debris from jacks as needed. 5. If jacks are down for extended periods, it is recommended to spray exposed leveling jack chrome rods with a silicone lubricant every 5 to 7 days for protection. 6. If your coach is located in a salty environment (within 60 miles of coastal), it is recommended to spray the rods every 2 to 3 days with a silicone lubricant. 7. Grease the fitting on the bottom of each jack cylinder with Lithium grease every 20-30 uses. 8. Do not use a high pressured wash/rinse system on of the components associated with the leveling system. This includes the pump, pump motor, wiring harness, control, and touchpad. The use of a high pressure wash/rinse system will void the warranty. Recommended Hydraulic Fluids for Your Hydraulic Pump The fluids listed here are acceptable to use in your pump assembly. Contact coach manufacturer or selling dealer for information about what specific fluid was installed in your system. • It is not recommended that hydraulic fluid and automatic transmission fluids be mixed in the reservoir. • In most applications, Type A automatic transmission fluid (ATF, Dexron III, etc.,) will work satisfactorily. Mercon V is also recommended as an alternative fluid for Power Gear hydraulic systems. • If operating in cold temperatures (less than -10° F), the jacks may extend and retract slowly. • For cold weather operation, fluid specially-formulated for low temperatures may be desirable. Mobil DTE 11M, Texaco Rando HDZ-15HVI, Kendall Hyden Glacial Blu, or any Mil. Spec. H5606 hydraulic fluids are recommended for cold weather operation. Please consult factory before using any other fluids than those specified here. Auto Level Operation Manual Page 5 Troubleshooting Tips T ro u b le S h o o tin g T ip s T h e fo llo w in g ch a rt co n ta in s tro u b le sh o o tin g tip s if yo u r syste m is n o t o p e ra tin g p ro p e rly, a n d th e to u ch p a d is not givin g yo u a tro u b le co d e Description T ouch P ad w ill not turn O N Probable Cause Corrective Action C oach ignition not in T urn on the ignition and start the coach. T he engine m ust run position. be running for the jack s to operate. B low n fuse or tripped circuit break er A uto S hut O ff has occurred (b/c low n fuse or 4 Jack s w ill not extend. B tripped circuit is not P um p running break er R eplace fuse or reset break er P ush O n/O ff button to turn the control back O N . R eplace fuse or reset break er B atteries are w eak . T urn on the ignition and start the coach. W ait a few m inutes to allow the batteries som e tim e to charge. T he engine m ust be running for the jack s to operate. Jack s w ill not extend (or are extending slow ly), pum p is running F luid level low . F ill tank to proper level w ith autom atic transm ission fluid, see tip sheet 140. B atteries are w eak . T urn on the ignition and start the coach. W ait a few m inutes to allow the batteries som e tim e to charge. T he engine m ust be running for the jack s to operate. Jack s w ill not retract fully A ir in the system C heck for coils in hose. R em ove the coil if present then extend all jack s to full extension, then retract fully. R epeat 4 cycles w aiting a few m inutes betw een cycles, check fluid level in betw een cycles. Auto Level Operation Manual Page 6 Troubleshooting Tips, cont’d N o rm a l O p e ra tio n : D e scrip tio n o f F la sh in g L ig h ts T h e fo llo w in g ch a rt co n ta in s in fo rm a tio n a b o u t d iffe re n t se ts o f fla sh in g ligh ts yo u w ill se e d u rin g n o rm a l o p e ra tio n Flashing Mode Lights Description of Reason operation Wait W ait W ill not allow operation w hile the w ait light is flashing T he system is busy. T he w ait light w ill go out w ithin one m inute. A t that tim e operation can be resum ed. Power Gear Logo A lready Level T he Power Gear Logo is flashing indefinitely T he coach is already level as it sits. H ow ever leveling can still be executed as norm al (to stabilize the coach) A ny tw o N ot Level T hese tw o of: lights could be Front, O N solid or Right, F lashing Rear & Left Left, D iagnostic F or Right, C heck approxim ately Front, 5 seconds, the Front, Right, Rear & Rear & Left the Power Gear lights flash in a Logo clock w ise pattern, along w ith the Power Gear Logo T his is norm al anytim e the coach is not already level. T he arrow s indicate the side of the coach that w ould need to be raised to reach level, if m anual m ode is used. T his is a norm al diagnostic check anytim e the ignition is turned O N . T he control w ill either turn back O F F after this diagnostic check , or a trouble code w ill start to flash. A ll lights are flashing Emergency A ll of the lights Retract are flashing, and the jacks are retracting. A buzzer sounds for the first 10 seconds of retract W hile the jack s w ere extended, either the park ing brak e w as released or the transm ission w as put into gear. T his is norm al behavior as a safety feature. T his is to prevent dam age to the coach or leveling system due to driving aw ay w ith your jack s dow n. A ll lights are flashing P rogram M ode T his m ode w as intentionally entered, and cannot be entered by accident. S ee T IP S heet # 153 for a description of operation in program m ode. A ll of the lights are flashing indefinitely. N o buzzer is sounding. Auto Level Operation Manual Page 7 T ro u b le C o d e s : D e s c rip tio n o f F la s h in g L ig h ts T h e fo llo w in g ch a rt co n ta in s tro u b le sh o o tin g tip s if yo u r syste m is n o t o p e ra tin g p ro p e rly, b u t th e to u ch p a d is g ivin g yo u a tro u b le co d e Flashing Lights Low Voltage Fault Code Low V o lta g e Description of operation Probable Cause Corrective Action L o w V o lta g e lig h t is O N s o lid o r fla s h in g . M a y o r m a y n o t a llo w o p e ra tio n B a tte rie s a re weak. T u rn o n th e ig n itio n a n d s ta rt th e c o a c h . W a it a fe w m in u te s to a llo w th e b a tte rie s s o m e tim e to c h a rg e . T h e e n g in e m u s t b e ru n n in g fo r th e ja c k s to o p e ra te . On/Off and T ra n s m is s Wait io n Park Brake P a rk B ra k e Left, Right, E x c e s s ive Front, Rear S lo p e & the Power Gear Logo W ill n o t a llo w o p e ra tio n T ra n s m is s io n is in g e a r P la c e th e tra n s m is s io n in P a rk (o r N e u tra l fo r d ie s e l c o a c h e s ). W ill n o t a llo w o p e ra tio n P a rk in g B ra k e is not engaged 1) Too s te e p /u n e ve n te rra in 2 ) T h e c o n tro l w a s im p ro p e rly p ro g ra m m e d E n g a g e th e p a rk in g b ra k e Jacks Down & Wait W ill n o t a llo w o p e ra tio n P re s s u re Loss T h e lig h ts a re fla s h in g in d e fin ite ly, b u t le ve lin g is p o s s ib le On/Off , C o m m u n i W ill n o t a llo w o p e ra tio n Jacks c a tio n Down & E rro r Park Brake T h e le ve lin g s ys te m h a s a p re s s u re le a k a n d n e e d s s e rvic e T a k e yo u r c o a c h to a n a u th o rize d s e rvic e c e n te r fo r re p a ir. N o te : T h e e le c tro n ic s a re fin e a n d d o n o t n e e d s e rvic e . O n ly th e h yd ra u lic p o rtio n o f th e s ys te m n e e d s s e rvic e . F a u lty w irin g , C h e c k to m a k e s u re th a t a ll p o o r c o n n e c tio n s , c o n n e c tio n s a re tig h t a n d p ro p e rly o r fa u lty c o n n e c te d . C yc le th e ig n itio n p o w e r com ponent to re s e t. If th a t d o e s n o t w o rk , try re p la c in g c o m p o n e n ts in d ivid u a lly, in th e fo llo w in g o rd e r: a ) H a rn e s s (b e tw e e n th e to u c h p a d a n d c o n tro l) b ) th e to u c h p a d c ) th e c o n tro l T h is is a n in te rn a l A n e w c o n tro l b o x is n e e d e d . e rro r H o w e ve r, a to u c h p a d is not needed. All of the Lights are on Solid, indefinitely In te rn a l E rro r W ill n o t a llo w o p e ra tio n Left, Right & the Power Gear Logo T im e o u t E rro r B a tte rie s a re L e ve lin g o p e ra tio n w a s a b o rte d . T h e re a re s e ve ra l w e a k . in te rn a l tim e rs th a t c o u ld h a ve trip p e d . T h e s e tim e rs a re b u ilt-in to p ro te c t th e h yd ra u lic p u m p o r th e c o a c h fro m b e in g d a m a g e d . T h e m o s t c o m m o n a re a ) J a c k s to o k to o lo n g to re tra c t o r b ) J a c k s to o k to o lo n g to fin is h a u to le ve lin g 1 ) M o ve c o a c h to g ro u n d th a t is m o re le ve l 2 ) S e e T IP S h e e t # 1 5 3 to re p ro g ra m c o n tro l T u rn o n th e ig n itio n a n d s ta rt th e c o a c h . W a it a fe w m in u te s to a llo w th e b a tte rie s s o m e tim e to c h a rg e . T h e e n g in e m u s t b e ru n n in g fo r th e ja c k s to o p e ra te . T o o s te e p /u n e ve n M o ve th e c o a c h to g ro u n d th a t is te rra in m o re le ve l T h ic k h yd ra u lic flu id c a u s e d b y c o ld w e a th e r S e e P a g e 4 fo r re c o m m e n d e d c o ld w e a th e r h yd ra u lic flu id A ir in th e L e ve lin g C h e c k fo r c o ils in h o s e . R e m o ve th e S ys te m c o il if p re s e n t th e n e x te n d a ll ja c k s Auto Level Operation Manual Page 8 Manual Override Valves In case of a loss of power at the pump assembly, the manual override valves (MOV’s) can be used to retract the leveling jacks. Not all Power Gear leveling system pumps have manual override valves. Power units for double acting systems that have manual override valves have flexible rubber caps on the valves and a hex override nut under the button cap on the electric motor. To use the MOV’s: 1. Remove the button cap from the end of the electric motor. First remove the two Phillips head screws from the top of the motor. The button cap can now be removed from the electric motor. You should now see a 7/16” override nut on the end of the electric motor shaft. 2. After verifying all personnel and tools are clear of the press the rubber cap on the valve for the front legs valve. The front end of the coach will start to descend. Only allow the coach to descend for 2 inches. 3. Push and hold the rubber cap on the Roadside Rear valve. Allow the coach to descend for 2 inches. 4. Push and hold the rubber cap on the Curbside Rear valve. Allow the coach to descend for 2 inches. 5. Repeat procedures 2-4 until the weight of the coach is transferred off the jacks and onto the suspension and tires. ! WARNING Care must be taken during the manual retraction of jacks to prevent bodily injury or death. The next step will allow fluid to transfer from the legs to the reservoir. This procedure will allow the coach to descend. Keep all personnel and equipment clear of the coach. Make sure no one is under the coach prior to this procedure. Do not have any body parts or equipment positioned such that the coach will descend on it. 6. This procedure will retract the front legs. Using a 7/16” socket attached to a drill, spin the override nut clockwise while holding the button on the front legs valve. Stop when the legs are fully retracted. 7. This procedure will retract the roadside rear leg. After the front legs are retracted, press the button on the roadside rear leg valve and spin the override nut clockwise. Stop when the leg is fully retracted. 8. This procedure will retract the curbside rear leg. After the front legs are retracted, press the button on the curbside rear leg valve and spin the override nut clockwise. Stop when the leg is fully retracted. 9. Replace the button cap on the electric motor and securely tighten the Phillips head screws.
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