RANKO R24X Operation And Maintenance Manual

Mini excavator

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6450 NE 14th Street, Des Moines, IA 50313

515-635-0079

Ranko R24X Mini Excavator

Operation and Maintenance

Manual

Table of Contents

Summary of Contents for RANKO R24X

Page 1 6450 NE 14th Street, Des Moines, IA 50313 515-635-0079 Ranko R24X Mini Excavator Operation and Maintenance Manual...
Page 2: Table Of Contents
☆ Chapter Three - Safe Operating………………………....7 ☆ Chapter Four - Transportation and Parking……......23 ☆ Chapter Five - Operate and Control notes…………....27 ☆Chapter Six - Main Structure characters of Ranko excavator………..............33 ☆ Chapter Seven - Maintenance and Repair……………………..34 ☆ Chapter Eight - Common faults and trouble shooting....43...
Page 3: Chapter One Important Notes
250 service or monthly, 50 service hours, or weekly, and every 10 service hours or daily. Ranko cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are therefore not all inclusive. If a tool, procedure, work method or operating technique not specifically recommended by Ranko is used;...
Page 4: Chapter Two - How To Drive And Operate
The operator should wear the safety cap and the safety spectacles. 2. The driver should read the Operation and Maintenance Book and remember the characters of the structure of the Ranko brand excavator. 3. The excavator can be used after the break-in according to the break-in period.
Page 5 13. Don’t fold or knock high pressure oil pipe. Hydraulic oil is about 150℉ when the excavator is working, so do not touch to avoid scalding. Please stop and wait for the oil to cool before repairing the hydraulic system. Please pay attention to safety as well.
Page 6 5. When working in the winter, please start the engine about 15-20 minutes before operation, until the temperature of the hydraulic oil reaches above 50℉. Otherwise, it can cause damage to the parts and the sealing elements. 6. Please apply additional oil to all the pin rolls, joint parts, and swing support of the whole machine after about 6-8 hours working.
Page 7 You can reduce the abrasion of the moving surface by lubricant (grease) to avoid any noise. Please do not fix any dust, sand, water or other impurity within storage of the lubricant grease. We recommend the G2-L1 lithium base grease. G2-L1 model is good for anti-wearing and is suitable for heavy working.
Page 8: Chapter Three - Safe Operating
Chapter Three：Safety There are many accidents in the operating and excavating because of the overlook of the basic notes. We will introduce some notes that you should pay attention to. The purpose of this is so we can prevent some injuries . Please read and understand all the safety notes before operating the machine.
Page 9 ●Do not make any alterations to the machine yourself Please do not make any modifications to the machine without the permission of Ranko. Ranko is not responsible for any accidents. ●I n c a s e o f E m e r g e n c y Please ensure the fire extinguisher and first-aid can be easily located in case of any fire or accident.
Page 10 ●Pay attention to the points and marks. Put the mark point at the ground. If necessary, the driver should pay attention to the marks and comply with the flag director. All the workers should understand the meaning of all the marks and the signals. Also, all the marks and signals should be operated by just one person.
Page 11 Read manual carefully before selecting and assembling parts. Please use the recommended or appointed parts by Ranko. If not, it may cause accidents and shorten useful time and performance. Ranko is not responsible injuries, accidents, machinery breakdown caused by incorrect use of parts.
Page 12 Operating Notes ●Starting up the engine properly Please press the horn to warn the people around you before starting the engine while in the operator seat. Do not start the engine by the method of short circuit or battery. Because it may cause serious accidents or the damage to the circuit system.
Page 13 ●Please comply with the instructions of rotation or traveling. Please prevent other person touching the rotation area and please confirm there is no other person in the working area before starting. Please press the horn to warn others! If it is dangerous or bad visibility, please find another person to guide the directions.
Page 14 ●Please comply with the following traveling notes. Please keep the arm position as shown in the right picture at a 90-100° angle. The distance is 12-16inches between the bucket and ground. Please do not make sharp turns while moving at a higher 12-16in speed when traveling on uneven ground.
Page 15 ●Notes of operation on a slope Please pay special attention to the operation on a slope because of its lack of balance. You must travel vertically, not horizontally. Please do not swing the arm when the bucket is full of material. If you must do that, make sure you are on a flat, sturdy, working platform.
Page 16 ●Notes if there are underground pipelines near excavating area. It is important to evaluate the area and consult with the relevant departments to confirm the exact position of water or gas lines in the area before beginning to excavate. ● Notes for Parking. Always park on flat ground.
Page 17 Notes of Checking and maintenance ●Warning board of checking and maintenance. It is dangerous to start the engine or moves the operation joystick while someone is checking or repairing the machine. Please post a warning signal (ex.“No operation”) at the operation joystick. Also put warning signal near the machine if necessary.
Page 18 ●Notes when changing the oil and filling diesel Please only change oil in a dry place. Any spilled oil will make the floor slippery and lead to an accident. Be sure to clean up any spilled oil. Also be sure to tightly screw down the lids of the diesel and engine oil after changing oil.
Page 19 ●Notes for performing repairs when at high temperature or pressure The engine coolant and engine oil come to a high temperature when the machine has been running for a while. Use caution when opening lids or changing engine oil, water, or filter element. It may scald you. Please wait to check and maintain the machine after the temperature has dropped to a safe temperature.
Page 20 hydraulic oil, solvent, filter element, battery or other toxic substance. Please use a container when you drain the waste fluid. Please don’t abandon the waste fluid on the ground, river lake. That will cause environment pollution. Notes of using battery ●Avoid burn from the battery fluid.
Page 21 Please clean off any dirt materials on the surface of the safety sign by using cotton fabric or detergent, not organic solvent or gas line. Please contact Ranko to obtain new safety signs when it becomes damaged, lost or unclear.
Page 22 ●The Posting Position of the safety signs Prohibit entering the rotatory range—Post at both sides of the balance weight. △ Notes of Checkup, repairing engine—Post it at the engine water tank △ No fireworks—Post it outside of the fuel tank, hydraulic oil tank. △...
Page 23 △ Notes of high temperature—Post it at the engine water tank and the high temperature part. △ Notes of the action of the working equipment—Post it both sides of the dipper.
Page 24: Chapter Four: Transportation And Parking
Chapter Four: Transportation and parking Transportation on the road Before transporting the machines, please pay attention to the main specifications and dimensions. Check overall weight, length, width, height, travel speed, ground pressure, etc. Please check the road width, bridges and road situation, and the traffic situation before transportation.
Page 25 the working equipment, for balance. 5. Parking in the fixed position when fully up on to the flatbed machine. After fully parked on to the flat bed, please do the following operations: 1) Keep the excavator balanced at the rear wheel of the flatbed to keep the machine from moving.
Page 26 ●Fixing the machine while parked on flatbed trailer. Please check the following steps when fixing the machine while parked on the flatbed trailer. 1. Pull the security lock bar to the lock position. 2. Turn off all switches, remove the startup key from the ignition. 3.
Page 27 5. for security, close the window, door, each guard, and lock the machine before leaving. ●Parking at a slope Attention It is very dangerous to park at a slope. Avoid parking at a slope. If you have to park at a slope, please make the bucket is down on the ground.
Page 28: Chapter Five - Operate And Control Notes
Chapter Five Notes of Operation and Control Unallowed Operation method Unallowed Operation ●Don’t operate the machine by ratatory force. It may damage the arm and reduce the life of the swing system. If you move the stones and oddments or pull down a wall by mechanical swing force. ●Don’t do dragging actions Don’t drag the bucket by traveling away.
Page 29 attached on the bucket can’t drop off, please continue the extending action of the bucket by using the joystick. In addition, prohibit shaking off the soil by vibration of the bucket while traveling. ●Prohibit unreasonable excavating. Prohibit excavating by the falling gravity with back of the machine body tilted or, all parts of the machine will be shocked by unusual impact force.
Page 30 Notes for Operation ●Prohibit hitting the object fiercely. Because the hydraulic breaker is heavier than the bucket, and the falling speed is quicker, so pay special attention. It may damage the front part of the machine and the swinging arm. ●The rock breaker can be only used in shredding Please don’t...
Page 31 If the hydraulic soft pipe starts unusually shaking it could mean there is something wrong with the pressure reservoir. If this happens, please stop operation and consult the the Ranko service department. ●Please don’t hang objects by the breaker. Please comply with the “Safety First” rules. Do not hang any objects from the breaker.
Page 32 ●Watch for interference of the breaker and the boom. Please operate the arm and bucket joysticks carefully, in order to prevent the interference of breaker and boom. ●Notes of working with the whole machine floated. Please be cautious when you work with the whole machine floated, or it may damage the working equipment.
Page 33 Notes after operation 1. Please lower the bucket on the flat and hard ground without stones or any loose material underneath after operation. 2. Please ensure oil is full but not up to the top of the oil tank. If you fill the oil to the top of the tank, and the outside temperature is rising, then the diesel oil may expand and overflow.
Page 34: Excavator
Chapter Six: The structure characters of the Ranko Mini excavator ★ Engine Ranko excavators contain a Kubota engine. The low fuel consumption, low noise, and the discharge have reached the Europe Standard III. ★ Hydraulic system These machines contain a whole function variable pump which means these excavators are of high quality and good reliability.
Page 35: Chapter Seven - Maintenance And Repair
Chapter Seven: Daily Maintenance & Servicing ★ Recommended Maintenance Part 1. Cooling system Please don’t add coolant to the hot engine. Let the engine cool off at first. Please check the coolant level regularly in the cold winter in order to confirm proper protection. If the temperature of the working place is below freezing temperature, the cooling system should be protected according the expected lowest temperature.
Page 36 because of the higher fuel temperature. 3. Hydraulic system It is important to mix very well the new additional lubricant and the old lubricant in the system. Please choose only oil products except other products that are acceptable for this equipment. If any water or air are going into the system, the hydraulic oil will become contaminated.
Page 37 ★★ Maintenance items at any time 1. Bucket teeth and edge shovel cutter Dangerous The fixed pin may fly out when it is knocked, and also, it may cause injures of the people around. So, please confirm that there is no person around when you knock the fixed pin.
Page 38 aerofoil nut with tools. B. Replace the thin filter element Attention: The thin filter element must be changed, and not used again after cleaning. Please change the thick filter element to thin ones after maintenance of three times. If there is still black smoke of the exhaust after assembling the clean thick filter element, please replace with thin ones.
Page 39 ★★★ Daily maintenance: 1. The periodic chart of maintenance Maintenance items at any time The maintenance content Bucket teeth and edge shovel cutter Check wearing or injures update Crawler shoes Adjustment when the crawler can’t keep vertical. Bucket clearance Check-update Air filter Check-update accumulator battery...
Page 40 2. Maintenance items every 10 working hours or daily A. Engine crankcase Please don’t feed the engine crankcase too full in order to avoid engine damage. Please check the engine oil section when the machine is on the flat ground before starting the engine.
Page 41 Check that the rubber cushion pad is deteriorating after injures or not. 5. Maintenance items every 250 hours or every month A. Engine crankcase - replace engine oil and packed bed filter B.Soft tube - it is most economic and reasonable to replace the soft tube before damaged.
Page 42 situations, but the primary method is pressure air. Pleases clean the damaged radiator carefully, because it will cause water leaking. B. Hydraulic system It is necessary to maintain the trap valve. Please replace the hydraulic oil filter at the first 500 hours. And replace oil filter every 1200 hours after that. Clean the nearby places completely clean, don’t let any dirty go into the trap valve.
Page 43 Attention Please do not start the motor and drive the flywheel to avoid injury. Please let the engine cool for a period of time before checking the valve clearance. B. Change the coolant Please drain and change the cooling fluid every 2000 working hours or 1 year. If cooing fluid is dirty or foamy, please drain the cooling fluid as soon as possible.
Page 44: Chapter Eight - Common Faults And Trouble Shooting
Chapter Eight：Common faults and trouble shooting Faults characters Reason analysis trouble shooting methods Engine output lacking Check and repair Oil pump wearing Check and replace Incorrect adjustment Adjust pressure correct distributing valve main extension spillover valve Power reducing Check from the oil system leaking and Working oil mass lacking parts wearing Release any air in the system, tighten the...
Page 45 Faults characters Reason analysis trouble shooting methods Track is different tension of Adjust accordingly the crawler on left and right pump performance Check or replace decreasing Travel Off Tracking motor performance Check or replace decreasing Central swing joints sealing Replace damaged Adjust the pressure valve pressure to Hydraulic pressure too high...
Page 46 Faults Reason analysis Trouble Shooting Methods characters The bearing in the speed Swing speed reducer damaged reducer is noisy Speed reducer gear wearing Check and repair and/or unworkable Speed reducer gear damaged pear-shaped pin loose or fall off Hydraulic pressure too high Adjust the pressure Oil pipe leaking Oil pipe damaged...
Page 47 Appendix：Oil filling and Draining of the Speed Reducer Attention After the new machine working for 40 hours, please drain all the lubricant of the swing speed reducer and the travel speed reducer, and then, fill 1/2 diesel oil of the total capacity in the swing speed reducer and travel speed reducer.
Page 48 Image 3: Oil feeding and draining of swing speed reducer...
Page 49 6450 NE 14th Street, Des Moines, IA 50313 Operation Instruction Manual Ranko R508L Wheel Loader...
Page 50 Operation joystick lock ● This device is to lock/unlock operation joystick. Please operate according to instruction label on machine. Note 1.This device cannot lock traveling joystick and extra line foot valve. They still work when the lock joystick is pulled up. 2.When the lock joystick is pulled up, you cannot operate the working device...
Page 51 Operation Joystick Instructions Power switch under seat Starter Key Start button Accelerator Starter ● To start the engine, turn on the power switch,insert key into starter, and turn the key counter-clockwise to first gear. By doing this, all electrical circuits are opening and machine is preheating. Push the start button and the engine is started.
Page 52 Important If the key is attached with metal key chain, it may hinder the signal transmission between key and switch and can cause engine start failure. Swing boom deflection foot valve extra line foot valve Caution If you move dozer blade on behind and operate the traveling joystick, machine will travel to the opposite direction of your operation.
Page 53 Operation Joystick ● operate boom, arm, bucket, machine Operation joystick is to swing or boom deflection. Operation direction Left operation joystick Arm stretch out Arm draw in Swing to left/boom deflect to left Swing to right/boom deflect to right Operation direction Right operation joystick Boom down Boom up...
Page 54 2. Before you enter or exit the machine, please pull up the lock joystick and make sure it’s in the locked position. 3. If the hydraulic oil’s temperature is low, the responsiveness of working device joystick will be slow, so please warm up the machine before working.
Page 55 Swing Boom deflection Caution Please do not swing or deflect the machine on slanted road, otherwise there might be danger of turnover. If you have to do this on a slanted road, please position the machine flat, then proceed. Caution When working with boom deflection, keep people or barriers away from boom deflection range to avoid injury.
Page 56 Dozer blade joystick ● To lift or lower the dozer blade - Push the joystick forward to lower dozer blade or pull the joystick backward to lift dozer blade. When you are dozing, please operate both traveling joysticks. One with your left hand and operate the other dozer blade with your right hand.
Page 57 extra line foot valve ● To operate the hydraulic breaker or other attachments: After hydraulic breaker is connected to the machine, raise upper pad to from, and step on right side of foot valve to proceed breaking. When using other attachments, step on left side of foot valve and hydraulic oil will flow to left side of arm, step on right side of foot valve and hydraulic oil will flow to the right side of the arm.
Page 58 Safety belt ● Caution Please fasten your safety belt before you operate the machine. Adjust the seat to the best position for you and buckle up the safety belt. Seat adjustment ● The seat can slide forward and backwards. 1. Pull joystick to right side to move seat backward, adjust the seat to the forward position in which you are Pull joystick to right...
Page 59 Work lamp/front Horn switch lamp switch Horn ● When the key is on and in running position, press the horn switch and the horn will ring. Work lamp/front lamp switch ● When the key is on and in running position, press the work lamp/front lamp switch, then the work lamp/front lamp will be turned on.
Page 60 Gauge ● ◆Charging indication When charging system failure occurs while the engine is running, the charging indication light will be turned on. When the engine is stopped, put the key to running position and the light will be turned on, and will go off after engine is started. ◆Engine oil pressure When lubricating system failure occurs while the engine is running, the engine oil pressure indication light will be turned on.
Page 61 ◆Work lamp/front lamp indication Put the key to running position and press work lamp/front lamp switch, the indication light will be turned on. ◆Water temperature When water temperature in cooling system reach to 215℉ while the engine is running, water temperature indication light will be turned on for warning.