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Operator’s Manual Safety, Assembly, Operating, and Maintenance Instructions Please Read and Save These Instructions For Safety, Read All Safety and Operation Beginning S/N: 147211 Instructions Prior to Operating Machine P/N 2000-21...
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Foreword Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied custom ers. If for any reason this product does not perform to your expectations, please contact your local dealer.
Table of Contents General Information Operating Instructions ________________ 1 _____________ 28 HIGHLIGHTED INFORMATION _____________ 1 CONTROL IDENTIFICATION, GLOSSARY ____________________________ 1 LOCATION, AND FUNCTION _____________ 28 IDENTIFYING NUMBER LOCATIONS ________ 1 Ignition Switch _______________________ 28 ENGINE SERIAL NUMBER LOCATION _______ 2 Engine Throttle _______________________ 29 SERVICING OF ENGINE AND Body Latch __________________________ 29...
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Table of Contents CLEANING ____________________________ 52 ADJUSTMENTS ________________________ 69 Engine Air Cleaner System _____________ 52 Transmission Control__________________ 69 Kohler Air Cleaner ____________________ 52 Steering Lever Position Adjustment ______ 69 Engine Cooling System ________________ 54 Steering Handles Adjustment ___________ 69 Cooling Air Intake Screen ______________ 54 Neutral Function Adjustment ____________ 70 Cylinder Head Cooling Fins ____________ 54 Full Forward Speed Adjustment _________ 71...
Most accidents associated with the oper ● TRANSAXLE transmits and controls power ation or maintenance of a Walker Mower are caused from the ground drive belt to the main drive by disregarding basic safety precautions or specific warnings. Such accidents, in most cases, can be wheel.
If you have any dif ficulty finding an authorized outlet or obtaining warranty service, please contact our Service Depart ment for assistance: Tractor Serial Number Location Walker Manufacturing Company 5925 E. Harmony Road Fort Collins, CO 80528 19702215614 www.walkermowers.com...
Tractor with 64" Rear Discharge 1239 (562) Deck (DR643) DRIVE BELTS Engine PTO Walker P/N 2230 (Set of 3) Ground Drive Walker P/N 22481 SEAT Full Spring Suspension with Dampening and Adjustments for Back Angle, Lumbar Support, and Operator Weight.
Component Identification NOTE: Control Identification shown in Operating Instructions section. Deck Support Arm (Not Visible) Body TiltUp Latch TiltUp Latch Counterweight Springs and Protective Covers Adjustable Footrest Deck Support Arm (Not Visible) Adjustable Footrest Deck TiltUp Bar Forward Speed Control (FSC) Friction Adjustment Cutting Height Release Lever...
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Component Identification Engine Air Oil Fill Fuel Gauge Cleaner Dipstick (Not Visible) Body Lift Handle Adjustable Muffler Heat Footrest Shield Tailpipe Fuel Tank Fuel Pickup and Cap Line Left Hand Drive Wheel Cylinder Head Cooling Fins (Not Visible) Spread Axle Muffler (Tail Wheel) Rear View and Left Side View...
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Component Identification RH Transmission LH Transmission Steering Lever Spring/ Control Rod Control Rod Dampener Assembly RH Transaxle LH Transaxle LH Transaxle RH Transaxle Lockout Arm Lockout Arm Clutch Parking Brake Linkage Linkage PTO Clutch Parking Brake Lever Lever Transaxle Oil Expansion Battery Reservoir...
Manufacturing must take full responsibility for safety. comply with safety instructions may result in person al injury. The Walker Rider Lawnmower has been designed with many safety features to protect the operator The seriousness or degree of importance of each from personal harm or injury.
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Safety Instructions - Before Operating Do not wear loose fitting clothing that could get 11. Never attempt to make any adjustments caught in moving parts. Do not operate this ma while the engine is running, except where chine while wearing shorts; always wear ade- spe cifically instructed to do so.
Safety Instructions - Operating Operate the mower only in daylight or in Do not operate machine if the operator pres- good artificial light with good visibility of the area ence safety switch system is not working. being mowed. Verify proper operation by having the operator lift off the seat with the engine running and mov...
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Safety Instructions - Operating 14. The maximum recommended slope operat- 19. If the cutting blades strike a solid object or the ing angle is 15 degrees or 26% grade. When machine begins vibrate abnormally, operating the machine on a slope, reduce speed immediately disengage the blade clutch and use caution to start, stop, and maneuver.
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For service of the pressurized fuel system, includ ing the fuel pump, fuel lines, and fuel injectors, contact your Walker dealer or authorized Kohler service dealer. Altering the equipment or engine in any manner which adversely affects its operation, perfor...
Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 8600-12 Location: Engine Part Number: 8600-12...
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Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. BELT TWIST DR64 BELT P/N 2731-5 2749-7...
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Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 8600-2 Location: Flex Coupler Guard in Front of Engine Part Number: 8600-2...
Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. Throttle ●...
Assembly Instructions SETUP INSTRUCTIONS Walker Mowers are shipped partially assembled to our distribution network, and are typically assem bled by the selling dealer. For any additional as sembly besides the following, contact your Walker dealer. Battery Service CAUTION Battery Important Battery Service, Installation, and...
Assembly Instructions Dry Battery Service Battery Charging DANGER DANGER BATTERIES PRODUCE EXPLOSIVE GASES Activating a battery can be dangerous. The battery should be taken to a reliable ● Charge the battery in a well-ventilated service station, battery store, or power area, so that gases produced while charg- equipment dealer where a trained techni- ing can dissipate.
Assembly Instructions Battery Installation Mower Deck Assembly Deck Caster Wheels Installation IMPORTANT: Make sure battery is securely mount ed in the frame. A loose battery may cause damage Remove the bolts and washers from each deck to the case resulting in acid leakage and severe caster wheel.
Assembly Instructions PTO Shaft Guard Installation Mower Deck Installation on Tractor Position the shaft guard as shown and mount with Deck Installation two (2) 1/420 x 1/2 in. bolts. 1. Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm.
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Assembly Instructions Coupler Installation Tool PTO Coupler Tube Retract SpringLoaded Quick Disconnect Ring Coupler Installation Tool Removal (Shown with Debris Guard Removed for Clarity) PTO Coupler Installation Tool IMPORTANT: DO NOT operate tractor with Coupler Installation Tool installed. Coupler Installation Tool Align IMPORTANT: To prevent damage to the mow...
Assembly Instructions Deck Leveling Internal Balls PTO Drive Locked on Shaft Shaft The mower deck and support frame are jig welded and the deck support linkage is factory adjusted. Within normal tolerances, very little, if any, adjust ment should be required to level the deck. Tire size and pressure will affect the levelness of the deck.
Assembly Instructions Deck Leveling Procedure Measure the sidetoside level of the deck by measuring from the ground to the top of the Position the mower on a smooth, level surface, deck housing at the front corners of the deck as and set the deck height to the most common shown in the Deck Leveling illustration.
Assembly Instructions PREOPERATING CHECKLIST CHECK ENGINE CRANKCASE OIL LEVEL Before operating the mower for the first time, and as Check the engine crankcase oil level before use and a routine before daily operations, it is important to after each 8 hours of continuous operation. Refer make sure the mower is properly prepared and to LUBRICATION for Checking Engine Crankcase ready for operation.
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Assembly Instructions CHECK HYDROSTATIC TRANSAXLE OIL Tilt Bar LEVEL Refer to LUBRICATION for Check Transaxle Fluid Level in Maintenance Instructions. CHECK TIRE PRESSURE Deck Caster Wheel = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa) Tailwheel = 20 PSI (137 kPa) CHECK FUNCTIONS OF WARNING LIGHTS AND WARNING HORN Turn the ignition key to the ON (RUN) position.
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Assembly Instructions CHECK MOWER BLADE CONDITION, SHARPNESS, AND SECURITY OF MOUNTING Tilt Bar TiltUp Hook and The blade mounting nuts on gear driven decks Latch Connected · · should be torqued to 60 lb ft (81 N m) and the blade Hitch Pin mounting bolts on belt driven decks should be ·...
Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND If the engine does not start, return the key to the “O” FUNCTION position for at least 60 seconds before making a re start attempt. Prolonged cranking can damage the starter motor and shorten battery life. Release the CAUTION key when the engine starts, and it will return to the ON (RUN) position.
Operating Instructions Engine Throttle Forward Speed Control (FSC) The throttle control lever (red knob) is located on the Forward Speed Control (FSC) has two functions: left side of the seat and is used to control engine One is to set forward travel speed, and the other is speed.
Operating Instructions Parking Brake The parking brake functions by locking a detent arm to a cog in the hydraulic motor rotor. Moving the lever FOR WARD engages the parking brake; mov ing the lever BACKWARD releases the brake. IMPORTANT: Stop the tractor completely before engaging the parking brake.
Operating Instructions Oil Pressure Warning Light/Horn IMPORTANT: Continued operation of the engine with an illuminated engine service light will result in The oil pressure warning light and horn signal indi substandard performance and MAY cause engine cate that engine oil pressure is below the safe oper damage if not corrected as soon as possible.
Lockout Arms This reminder is only used one time. *** In normal operating conditions, oil changes in 100hour intervals are acceptable. Walker and Transaxle Lockout Arm Location the engine manufacturers recommend engine oil changes every 50 hours in extremely dirty or...
A fully adjustable suspension seat is standard on operation of the switch is checked by having the op Model H38i. This seat is adjustable for back pitch, erator lift off the seat with the tractor moving forward weight, lumbar support and armrest inclination.
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Operating Instructions For Backrest adjustment, moving the adjustment For adjusting the height of the armrest, pry out the handle upwards loosens the notching of the back round cap (arrow) of the cover and loosen the hexa rest adjustment. Refer to Figure 3. gon nut (size 13 mm) situated behind it.
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Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers FORWARD SPEED LEFT WHEEL RIGHT WHEEL CONTROL LEVER (FSC) STEERING LEVER STEERING LEVER Forward Position Full Forward (No Control Change) Ground Speed Position NeutralPark Position Intermediate Ground Speed Position...
Before operating the mower, read and un- motor and shorten battery life. Contact your derstand all Safety Instructions and Operat Walker dealer or authorized Kohler dealer for ing Instructions. additional help. ADJUSTING GROUND SPEED AND STEERING...
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♦ Remember it is not necessary to hold the a slope, the machine will freewheel down steering levers forward (a unique Walker the slope. To maintain control, immedi- feature); always PULL on the levers for ately (1) Release the steering levers and steering or for reverse motion of the mower.
Operating Instructions Stop ground travel by pulling both steering le vers backward to the NEUTRAL position (trac Pull Steering tor not moving) and then moving the FSC lever Levers with Left Hand to the NEUTRAL-PARK position. Keep Feet on NOTE: If the tractor creeps forward or back ward Footrest when with the FSC lever in the NEUTRAL-PARK posi...
(5) seconds, the brake should Disengaged be repaired or replaced before operating Position the mower. Contact your Walker dealer. 4. Turn the ignition switch OFF. Blade Clutch Disengaged WARNING CAUTION Remove the key from the ignition switch when leaving the mower unattended.
Operating Instructions ADJUSTABLE FOOT RESTS WARNING Some carrier frames are outfitted with adjustable foot rests. To adjust, rotate the footrests upward and In case the transmission drive belt breaks slide to the desired position. Rotate the footrest during operation, and if the machine is on down and insert the edge of the footrest into the a slope, the machine will freewheel down nearest notch to lock in position.
Operating Instructions LOCKOUT position. The levers must be in the Cutting Height highest position to completely unlock the trans Hitch Pin Release Lever axles. Deck Lift Pedal Transaxle Lockout Arm Height Adjustment Decal Cutting Height Adjustment Transaxle Lockout Arm - Freewheel Position After moving the mower, release the arms, plac...
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Operating Instructions ● Use a slow setting on the FSC for trimming op erations. ● Make sure the mower is leveled properly for a smooth cut. Refer to Deck Leveling in Assembly Instructions. ● Use an alternating stripe mowing pattern for best appearance and vary the direction of the stripe each time the grass is mowed to avoid wear patterns in the grass.
Operating Instructions RECOMMENDATIONS FOR TILT-UP DECK Maximum Recommended OPERATION/TRANSPORT Slope Do Not Operate on Steep Slopes To avoid potential deck and/or tractor damage while using the tiltup deck, the following recommenda tions are offered: ● Do not move the tractor with the deck in the tilt up position since both the roller wheels (on the back of the deck) may be damaged by moving the tractor.
Δ Change oil every 50 hours when operating in dry, dirty conditions ΔΔ Change transaxle oil after the initial break-in period of 75-100 hours operation ΔΔΔ See your Walker dealer for this service or refer to the Walker Service Manual...
Maintenance Instructions LUBRICATION LUBRICATION IMPORTANT: DO NOT operate engine without a sufficient oil supply in the crankcase. DO NOT operate with oil level below the “L” mark or above WARNING the “F” mark on the dipstick. DO NOT attempt to lubricate the machine with the engine running.
Maintenance Instructions LUBRICATION Remove the dipstick, oil fill cap, and oil drain Install the new oil filter on the engine. Turn the plug, and drain the oil into a suitable container. filter clockwise until the rubber gasket con tacts Be sure to allow ample time for complete the sealing surface, then tighten an additional drainage.
Maintenance Instructions LUBRICATION DR52, DS60 or DR64 Mower Deck Lubrication Transaxle Oil and Filter Change Change the transaxle oil after the initial break-in Lubricate the UJoint in the drive shaft every 25 period of 75-100 hours. Thereafter, change oil hours with SAE general purpose lithium or molyb every 400 hours of operation as follows: denum base grease.
Maintenance Instructions LUBRICATION Grease Fitting and Oil Point Lubrication Screw Locking Elbow Lubricate the grease fittings and oil points after ev- Nut Down ery 25 hours of operation. Lubricate more often when operating in dusty or dirty conditions. Use SAE general purpose lithium or molybdenum base grease for grease fittings and light machine oil (SAE 10) to lubricate oil points.
Maintenance Instructions CLEANING CLEANING IMPORTANT: Use only Kohler air filter elements for replacement (Kohler 25 083 01S and 25 083 04S). Aftermarket filters may not seal properly or filter ef CAUTION ficiently. If a pressure washer is used on the ex- Canister posed working parts, avoid water on the electrical parts and the engine cooling...
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Maintenance Instructions CLEANING Inspect the primary filter element after every 100 After removing the safety filter, use a clean, hours of service and replace the element and safe damp cloth and wipe the interior of the air cleaner ty filter yearly (or when dirty or damaged). More canister clean.
Maintenance Instructions CLEANING Rotating Engine Cooling Air Intake Screen Keep Engine Screen Clean Cover Cylinder Head Cooling Fins Latches It is essential for performance and longevity of the aircooled engine to keep the cylinder head cooling Proper Orientation of Air Cleaner Cover fins clean and free of obstruction.
Maintenance Instructions CLEANING Every 100 hours, inspect and clean the cooling fins (more often when operating in extremely dusty, dirty Remove conditions). Remove the two (2) cylinder head ac Access Panel cess panels in the engine shroud and clean the cool Oil Line ing fins and external surfaces using compressed air.
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Maintenance Instructions CLEANING Fit tilt bar into the socket on front of deck hous ing and secure with hitch pin. Tilt Bar TiltUp Hook and Latch Connected Hitch Pin Use Hitch Pin to Secure Tilt Bar. TiltUp TiltUp Latch Hook Tilt Bar Installed Remove footrest or, if equipped with adjustable footrests, move the footrest to the full forward...
Pay close attention to any oily dirt buildup on the transaxle housings. This may be the result of an oil leak. If an oil leak is noticed, contact Transaxle Cooling Fans your local Walker dealer. Cooling Fins Transaxle Housing and Cooling Fins...
Maintenance Instructions CHECKING/SERVICING CHECKING/SERVICING CAUTION DANGER Important Battery Service, Installation, and To prevent accidental starting of the en- Charging Tips for Electronic Fuel Injected gine when servicing or adjusting the ma- Engines: chine, remove the key from the ignition ● Do not allow the battery cables to touch switch and disconnect the spark plug opposing terminals.
Maintenance Instructions CHECKING/SERVICING Cleaning the Terminals Wheel Nut Torque Check the eight (8) Drive Tire mounting nuts. Every If battery terminals are corroded, remove battery 100 hours they should each be torqued to from the mower. Using a wire brush, remove corro ·...
If any of the following conditions occur during start ing or operating, a safety interlock switch may be Yearly or every 500 hours disassemble and clean malfunctioning. Contact your Walker dealer for trou the solenoid shift starter. Refer to the Kohler Service bleshooting and/or replacement.
Maintenance Instructions CHECKING/SERVICING Transmission Control Setting On a yearly interval or when an outofadjustment condition is observed, check the transmission con trol for proper function as follows: Neutral-Park With the mower parked on level ground, start and run the engine, first at idle and then normal operat ing speeds.
Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are five (5) individual drive belts on the ma DANGER chine: ● Engine/PTO Belt (Matched Set of 3) To prevent accidental starting of the engine when replacing parts or repairing ● Ground Drive Belt the machine, remove the key from the ignition switch and disconnect the spark ●...
Maintenance Instructions REPLACING/REPAIRING Engine/PTO Belt Remove two (2) wire lock pins and open To remove an engine/PTO belt: Lower LH Belt Guard and PTO Belt Guard. Remove Upper LH Belt Guard and RH Belt Roll the belt off the pulley( and remove the Guard by removing two (2) wing nuts.
Maintenance Instructions REPLACING/REPAIRING Ground Drive Belt To remove the ground drive belt: Slide belt off pulleys, then release the idler Remove belt tension by raising the spring loaded idler pulley with the deck tilt bar. pulley. Deck Tilt LH Transaxle Ground Drive Belt RH Transaxle...
Maintenance Instructions REPLACING/REPAIRING Deck Drive Belt From a position on the LH side of the deck, grasp belt midsection and pull to compress To remove the deck drive belt: the belt tensioner springs and move the tensioning pulley inward. The belt will then Remove deck footrest and two (2) covers slip off the LH spindle pulley and can be over the RH and LH blade spindles.
Fuel Filter Mower Blades Mower blades are removed and remounted as Model H38i is equipped with a 10 micron inline fuel described in the Sharpen Mower Blades instruc filter between the fuel tank and the fuel pump (low tions (refer to CHECKING/SERVICING to Sharpen pressure pump).
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Reinstall the blades following procedure from Sharp en Mower Blades instructions. If blades are re placed, always use Walker original equipment blades to ensure safety and optimum performance. The quality and performance of replacement blades offered by other manufacturers cannot be guar anteed, they could be dangerous.
Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Transmission Control IMPORTANT: The proper adjustment of the tran saxle control stops is essential for efficient opera tion and life of the transaxle. These stops are prop Stop erly ad justed at the factory and should only require Bolt read justment if the transaxle or related control link...
Maintenance Instructions ADJUSTMENTS Step 3 - Neutral Function Adjustment Control Rods Control Arm With the Forward Speed Control (FSC) in NEU- TRAL-PARK, the lever should be straight up. Adjust by loosening the jam nuts on the FSC Rod and turn the rod to attain the straight up position.
Maintenance Instructions ADJUSTMENTS WARNING Maximum Speed Tracking Adjustment The following adjustments are made with THandle the engine running. Keep all body parts Hex Wrench and tools away from rotating and hot com- ponents, and secure all loose clothing. With the body lowered and the FSC in NEU- Transmission TRAL-PARK, start the engine.
Maintenance Instructions ADJUSTMENTS If the forward travel is straight throughout the CAUTION speed range, except at maximum speed place the FSC in full FORWARD, turn the set screw in the Transmission Control Arm, of the faster Before testing the FSC Neutral Switch, dis- side, in until it contacts the limit stud.
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Maintenance Instructions ADJUSTMENTS The FSC friction is increased or decreased by tightening or loosening the friction adjust- ment nut. Loosen or tighten the nut and check the control function until the conditions of both steps 1 and 2 (above) are met. FSC Friction Adjustment Nut FSC Friction Adjustment Nut...
Maintenance Instructions ADJUSTMENTS Blade Clutch (PTO) Adjust the length of the clutch actuator link to achieve a clutch spring assembly bolt head clear Clutch Engagement/Belt Tension ance of 1/4 in. to 5/16 in. (6.35 mm to 7.94 mm) with the clutch engaged. To adjust length, remove The clutch engagement and PTO belt tension are ball joint from clutch arm and shorten the clutch adjusted using the clutch actuator link.
Maintenance Instructions ADJUSTMENTS Use the following procedures to check and adjust clutch disengagement and brake action: Step 1 - Idler Pulley Maximum Travel Adjustment Loosen the brake band adjustment nut allowing clutch pivot stop arm and stop bolt to make contact (refer to Blade Brake Band Adjustment illustra...
Maintenance Instructions ADJUSTMENTS Step 2 - Blade Brake Band Adjustment After the maximum pulley travel is set, adjust the working travel of the clutch idler pulley by adjusting the brake band nut and make the following adjust ment as needed: Blade Brake Adjust the blade brake band, using the adjust...
(1) year* after date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transpor...
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