SUNWARD SWL3210 Service Manual
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SUNWARD SWL3210 Service Manual

Skid-steer loader
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SKID-STEER LOADER
HUNAN SUNWARD INTELLIGENT MACHINERY CO., LTD.

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Коля
January 30, 2025

Здравствуйте как найти схема подключения электромагнитный клапан

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1 comments:
Mr. Anderson
February 10, 2025

The provided context does not contain a specific wiring diagram for the SUNWARD SWL3210 electromagnetic valve. However, related electrical system details, including relays, solenoids, and circuit flows, are mentioned in the manual under section 5 (Electrical System). To find the exact wiring diagram, refer to the SWL3210 Service Manual's electrical system section or schematic diagrams.

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Summary of Contents for SUNWARD SWL3210

  • Page 1 Service Manual Product for the world SKID-STEER LOADER HUNAN SUNWARD INTELLIGENT MACHINERY CO., LTD.

  • Page 2: Table Of Contents

    SWL3210 Service Manual INDEX INTRODUCTION ............................4 MODELS AVAILABLE........................4 ABOUT THIS MANUAL ........................4 TREATMENT OF THIS MANUAL....................4 UNITS ..............................4 DEFINITION OF “LEFT” SIDE AND “RIGHT” SIDE ..............4 PRECONDITION TO USE THE MACHINE ..................5 ..............................5 IGNALS SECURITY..............................
  • Page 3 SWL3210 Service Manual 4.3.1 OUTSIDE VIEW OF GEAR PUMP ..................36 4.3.2 BREAKDOWN DRAWING OF GEAR PUMP ................ 37 4.3.3 MANIFOLD VALVE......................... 37 4.3.4 OUTSIDE VIEW AND ILLUSTRATION OF MANIFOLD VALVE........37 4.3.5 SET THE DATA ........................38 BUCKET-LIFT VALVE........................39 4.4.1...
  • Page 4 SWL3210 Service Manual 7.4.4 VERY 250 HOURS OF OPERATION .................... 85 7.4.4.1 CHECKING THE GEARING CHAIN TENSION....................85 7.4.4.2 ADJUSTING THE CHAIN IF NECESSARY......................85 7.4.4.3 CHECKING THE FAN BELT ..........................85 7.4.4.4 CLEANING THE RADIATOR..........................85 7.4.4.5 CHECKING THE OIL LEVEL IN THE GEAR CHAIN..................85 7.4.4.6 CHANGING THE ENGINE OIL .........................86...

  • Page 5: Introduction

    It locates on the behind of the seat. See the right picture. The operation manual must be always kept in this case. In case of damage or lose this manual, request to HUNAN SUNWARD INTELLIGENT MACHINERY CO., LTD or the SWL dealers for a new one.

  • Page 6: Precondition To Use The Machine

    SWL3210 Service Manual 1.6 PRECONDITION TO USE THE MACHINE To maintain this skid-steer loader properly and safely, operator must know well about this machine and have basic experience on using this kind of machine. The operator must take special attention on the security recommendation in order to preserve his security and the security of persons around him.
  • Page 7 SWL3210 Service Manual If not avoided, this situation may cause minor or moderate injury to operator (or other persons) or damage to the machine. There are other signal words showed under to indicate precautions that are useful for operator. It is used for precautions that must be taken to avoid actions what could shorten the life of the machine.

  • Page 8: Security

    SWL3210 Service Manual 2 SECURITY This section describes the possible hazards that may appear during the operation and maintenance of the machine. Authorized additional equipments have their manual given together with the equipments. 2.1 MEANING OF THE SAFETY SIGNS Safety precaution labels are fixed to the machine to warn about possible hazards that may cause personal injuries or even death.
  • Page 9 SWL3210 Service Manual Note Float Tail warning Oil level Diesel Oil...
  • Page 10 SWL3210 Service Manual Oil filter Drag position Lifting points Operation direction Operation direction Safety pin for boom...

  • Page 11: Acoustic Signs

    SWL3210 Service Manual Security button Emergency exit Engine hood ACOUSTIC SIGNS 2.1.2 The following table shows the different acoustic labels fixed on the machine and the respective meaning. ACOUSTIC LABELS The max noisy level out of cabin. The max noisy level in cabin.

  • Page 12: Location Of The Safety Labels

    SWL3210 Service Manual 2.2 LOCATION OF THE SAFETY LABELS The safety labels were located in striking position. 2.3 GENERAL PREVENTION GENERAL SAFETY RULES 2.3.1 The following items are extremely important. Operators must read with great care and follow them while operating and performing maintenance.

  • Page 13: Clothing And Personal Protection

    SWL3210 Service Manual CLOTHING AND PERSONAL PROTECTION 2.3.2 Inappropriate clothing may lead to injury to the operator. Please wear in the protective clothing while operating or performing maintenance such as hardhat, goggles glasses, mask gloves, safety shoes and headphones. If you have long hair, tie up them before approach the...

  • Page 14: Prevention Of Fire To Fuel And Oil

    SWL3210 Service Manual Before enter and leave the machine, make sure the footplate and handles are not covered with oil, grease, ice or other slippery matter. In case it happens, clean the slippery matter carefully immediately. Take great care in case the machine is wet. It could be very slippery.

  • Page 15: Prevention Of Burns

    SWL3210 Service Manual PREVENTION OF BURNS 2.3.5 After operating for a period, the engine, coolant, hydraulic oil, engine oil, radiator and pumps are hot. Do not touch them until they cool down. In case of entailing working with hot oil, hot...

  • Page 16: Limits Of The Machine

    SWL3210 Service Manual Do not travel or operate the machine near the electrical cables. On the working sites where the machine may go close to electrical cables, follow the procedures below. Otherwise it is possible to get an electric shock, which may cause serious injury even death.

  • Page 17: Running The Engine During The Maintenance

    SWL3210 Service Manual Keep the machine and the ambient clean. Keep the parts and tools in proper place. To prevent pollution, never deposit the fuel, oil and grease directly onto the ground. Use containers to keep the fuel, oil and grease and drain them according to the local regulations.

  • Page 18: Safety Rules For High-Pressure Oil And Hose

    SWL3210 Service Manual SAFETY RULES FOR HIGH-PRESSURE OIL AND HOSE 2.4.4 The hydraulic system is always under internal pressure. Before do any inspecting or replacing hoses, always lower the working equipment and make sure that the pressure in the hydraulic circuit has been released.

  • Page 19: Precaution During Inflating The Tires

    SWL3210 Service Manual Always wear goggles and gloves when you are working with the battery. Stop the engine and remove the key before working on the battery. Never smoke and use any flame near the battery. Always tighten the terminals and caps securely.

  • Page 20: General Description Of The Machine

    SWL3210 Service Manual 3 GENERAL DESCRIPTION OF THE MACHINE 3.1 DESCRIPTION OF THE MACHINE FRONT VIEW 3.1.1 REAR VIEW 3.1.2...

  • Page 21: Machine Distribution

    SWL3210 Service Manual MACHINE DISTRIBUTION 3.1.3 Bucket 2.Working lamp 3. Cabin 4.Hydraulic oil tank 5. Engine hood 6. Fuel tank 7. Arm 8. Wheel 9. Exhaust pipe 10. Rear cover...

  • Page 22: Specification

    SWL3210 Service Manual 3.2 SPECIFICATION GENERAL DATA 3.2.1 ITEM SWL 3210 Operating weight 3250kg Nominal load 950kg Tipping Load 1900kg Bucket volume 0.53m3 Breakout force (lifting cylinder) 2420Kgf Breakout force (tilting cylinder) 2470Kgf Max traveling speed 12.6Km/h OVERALL DIMENSION 3.2.2...

  • Page 23: Engine

    SWL3210 Service Manual Item Specification SWL3210 4020 ㎜ Overall operating height 3123 ㎜ Height to bucket hinge pin 2100 ㎜ Height to top of cab 2950 ㎜ Height to bottom of level bucket 2750 ㎜ Overall length without attachment 3590 ㎜...

  • Page 24: Pneumatic

    SWL3210 Service Manual System voltage Current total PNEUMATIC 3.2.5 ITEM Pressure 10X16.5 PR10 CHAOYANG 60PSI 12X16.5 PR10 CHAOYANG 60PSI 10X16.5 PR10 MECHILIN 65PSI 12X16.5 PR10 MECHILIN 65PSI 10X16.5 PR10 SOLIDEAL 65PSI 12X16.5 PR10 SOLIDEAL 65PSI OILS AND COOLANT 3.2.6 Use only oil and coolant recommended in this manual.

  • Page 25: Torque For Screws

    SWL3210 Service Manual TORQUE FOR SCREWS 3.2.8 Unless other specification, tighten the nuts and bolts according to the torques shown in the below table. Tighten the goods by the wrenches with gauge. Thread Diameter (mm) Quality 8.8 Torque (Nm) Quality 10.9 Torque (Nm)

  • Page 26: Lubrication Points

    SWL3210 Service Manual LUBRICATION POINTS 3.2.9 The following drawing shows the main lubrication points.

  • Page 27: Hydraulic System

    SWL3210 Service Manual 4 HYDRAULIC SYSTEM 4.1 MAIN TRAVEL PUMP 4.1.1 ILLUSTRATION OF MAIN TRAVEL PUMP COMPONENTS Rear pump Front pump DA VALVE Charge pump...
  • Page 28 SWL3210 Service Manual Port G2 of charge pump Port B of rear pump Port A of Port A of front Port B of front rear pump pump pump Relief valve of Relief valve of rear pump port B rear pump port A...
  • Page 29 SWL3210 Service Manual Port G Port T Test port MB of Test port MB of front pump B rear pump B Test port G Test port MA Test port MA of of front pump rear pump A...
  • Page 30 SWL3210 Service Manual Bolt of max displacement of Zero displacement front pump, A point adjustment output of front pump Zero displacement point adjustment of rear pump Bolt of max displacement of rear pump, A port output Bolt of max Bolt of max...

  • Page 31: Pipeline Connection (For Testing) Of Main Travel Pump

    SWL3210 Service Manual PIPELINE CONNECTION (FOR TESTING) OF MAIN TRAVEL PUMP 4.1.2...

  • Page 32: Set Pressure Data For Main Travel Pump

    SWL3210 Service Manual SET PRESSURE DATA FOR MAIN TRAVEL PUMP 4.1.3 Pay attention to the following items before the assembly of testing tools: Lift up the boom, start safety rod, get the cabin upside down and insert safety pin. Release the pressure of the system and that inside of the other components until the hydraulic oil has cooled down to normal temperature .
  • Page 33 SWL3210 Service Manual should be about 6bar. If any deviation occurs, adjust the valve DA⑥ and correct it. When the engine rev is more than 2600rpm，the outlet pressure of port Y should be more than 18bar. 3）When leaving factory, the pressure for traveling pump’ s main front and rear oil ports A and B is 325±5bar.

  • Page 34: Travel Motor

    SWL3210 Service Manual 4.2 TRAVEL MOTOR ILLUSTRATION OF TRAVEL MOTOR MAIN COMPONENTS 4.2.1 Right travel motor Left travel motor Port Z for Port A Port L for opening brake Port B leakage output...
  • Page 35 SWL3210 Service Manual Solenoid operated Oil supply direction valve for port for control brake brake Pilot oil supply Pilot oil supply port port for working for travel...

  • Page 36: Picture Of Brake Oil Pipes' Connection

    SWL3210 Service Manual PICTURE OF BRAKE OIL PIPES’ CONNECTION 4.2.2 ROTATION DIRECTION OF TRAVEL MOTOR. 4.2.3 When port A begins to suck oil, it seems from the shaft end that the motor runs clockwise; when port B begins to suck oil, it seems from the shaft end that the motor runs anticlockwise.

  • Page 37: Working Rear Pump

    SWL3210 Service Manual 4.3 WORKING REAR PUMP 4.3.1 OUTSIDE VIEW OF GEAR PUMP Gear pump 1 Suction port Gear pump 2...

  • Page 38: Breakdown Drawing Of Gear Pump

    SWL3210 Service Manual 4.3.2 BREAKDOWN DRAWING OF GEAR PUMP See the appendage 4.3.3 MANIFOLD VALVE 4.3.4 OUTSIDE VIEW AND ILLUSTRATION OF MANIFOLD VALVE Main relief valve Boom Bucket Auxiliary...

  • Page 39: Set The Data

    SWL3210 Service Manual SET THE DATA 4.3.5 The main overflow valve① of manifold valve determines system’s working pressure. The working pressure for this system is set at 210±10BAR, while the pressure for second overflow valves ②③ is set at 235±10bar. When manifold valve is used in large flow system, take away...

  • Page 40: Bucket-Lift Valve

    SWL3210 Service Manual 4.4 BUCKET-LIFT VALVE THE OUTLINE AND ILLUSTRATION OF BUCKET-LIFT VALVE 4.4.1...
  • Page 41 SWL3210 Service Manual...

  • Page 42: Large Flow Control Block (Only For Large Flow System)

    SWL3210 Service Manual 4.5 LARGE FLOW CONTROL BLOCK (ONLY FOR LARGE FLOW SYSTEM) OUTSIDE VIEW AND ILLUSTRATION OF LARGE FLOW CONTROL 4.5.1 BLOCK Solenoid operated Testing direction valve for Safety valve for fitting control summation summation...

  • Page 43: Set The Data

    SWL3210 Service Manual SET THE DATA 4.5.2 Place a manometer whose measurement range is 60MPa in connector for pressure test.（screw thread ： M16X2 ） The pressure for this device can be set by adjusting safety valve. The pressure is set at 210bar when leaving factory.
  • Page 44 SWL3210 Service Manual...
  • Page 45 SWL3210 Service Manual WORING HAND LEVER NOZZLE TABLE: handle oil port Multiunit valve pilot port PH(pilot oil sources block...
  • Page 46 SWL3210 Service Manual Outside view and data of travel hand lever...
  • Page 47 SWL3210 Service Manual...
  • Page 48 SWL3210 Service Manual Signal port...

  • Page 49: Pedal Operation Valve

    SWL3210 Service Manual TRAVEL HAND LEVER CONNECTION： Hand lever oil port Travel pump pilot port Front pump X1 Rear pump X1 Front pump X2 Rear pump X2 Signal connector for machine reversing PV(pilot oil sources block) 4.6 PEDAL OPERATION VALVE...

  • Page 50: Hydraulic Diagram

    SWL3210 Service Manual 4.7 HYDRAULIC DIAGRAM PEDAL VALVE NOZZLE TABLE： Pedal valve oil port Multiunit valve oil port PH(pilot oil sources block)

  • Page 51: Electrical System

    SWL3210 Service Manual 5 ELECTRICAL SYSTEM 5.1 INSTALLATION SITE 1 15 6 1. Head work lamp 2.Head small lamp 3.Rear work lamp 4.Horn 5.Rear lamp 6. Enable switch 7. Fuses box 8.Start switch 9.Reversing horn 10.Beacon lamp 11.Water temperature meter 12.Hour meter...

  • Page 52: Installation Site 2

    SWL3210 Service Manual 5.2 INSTALLATION SITE 2 1. Battery 2.Alternator 3.Starter 4. Disconnect switch (Option) 5.Air heater(Preheating) 6.Relay box 7.Pressure switch 8.Fuel pump 9.Air filter 10.Stop solenoid valve...

  • Page 53: Diagram

    SWL3210 Service Manual 5.3 DIAGRAM Code Name and function Seat switch SP1,SP2 Travel pressure switch Brake pressure switch Reversing pressure switch L1~L5 Outline light L6~L7 Head work lamp L8~L9 Rear work lamp L10~L11 Parking brake light L12~L13 Turning light Beacon lamp...
  • Page 54 SWL3210 Service Manual Code Name and function Start relay Protect relay Fast pull relay Delay relay Safety relay Pilot relay K7~K8 Invert relay Brake indication relay Parking lamp relay Horn relay Flasher K13~K14 Float relay Brake indication lamp Delay module...

  • Page 55: Circuit Diagram

    SWL3210 Service Manual Code Name and function Battery 12V Alternator Starter Main fuse Starting fuse Fast pull fuse Start switch fuse Safety switch fuse Meter fuse Clearance light fuse Head work lamp fuse Rear work lamp fuse Parking brake light fuse...
  • Page 56 SWL3210 Service Manual There are a mechanical type switch S1 on the battery(+)，the battery switch is always on the “ON” position when the machine is in operation. When the ignition lock switch is on the “OFF” position, the current flows from the a battery anode as shown below：...
  • Page 57 SWL3210 Service Manual Start switch PRE-HEAT (R1) → preheater R0→GND 2) KUBOTA diesel engine（SWL32） Battery + →disconnect switch S1 Start switch ON (Br) → ignition lock switch Fuse F0 →Stop solenoid Y0(hold-on solenoid)→GND →Fuel pump M0→GND Start switch position: ON...
  • Page 58 SWL3210 Service Manual ※ Do not operate starter lock switch on the “START” position after the machine is started. DANGER: Do not disconnect or shorten any lead wire while the starter is operating. 3. Charging circuit Operator releases the start lock switch from the “START” position to the “ON” position after the machine is started.
  • Page 59 SWL3210 Service Manual Power and engine circuit -------YANMAR（SWL28）...
  • Page 60 SWL3210 Service Manual Power and engine circuit -------KUBOTA engine（SWL32）...

  • Page 61: Safety And Protection Of Circuit

    SWL3210 Service Manual Safety and protection of circuit 5.4.2 1) Safety circuit For the sake of safety, two interlockers i.e. seat switch and safety bar switch are installed. Only when operator sits correctly, and gets the safety bar ready, the machine is likely to travel or do other tasks.
  • Page 62 SWL3210 Service Manual →Brake switch S0(1)→Pilot relay K6（ solenoid ）→GND →Relay K6 (normal open) or S0 (1) →Resistance R1→relay K7(normal open)→S0(1) →GND →Pilot solenoid valve Y1→GND →Door limit switch SQ3→working device switch SA1→working device valve Y3→GND Safety switch fuse F1→relay K9 (normal close)→ Parking brake lightHL0→GND...
  • Page 63 SWL3210 Service Manual Safety protection circuit...

  • Page 64: Monitor Circuit

    SWL3210 Service Manual MONITOR CIRCUIT 5.4.3 1) Circuit flow Start switch position ON →start switch ACC →safety switch fuse F2→ →Water temperature meter P1→water temperature sensor TR1→GND →GND →Fuel gauge P2 →fuel sensor TR2→GND →GND →Hour meter →GND →Water alarm lamp E1→Water temperature sensor TR1→GND →Oil pressure alarm lamp E3→oil pressure sensor TR3→GND...
  • Page 65 SWL3210 Service Manual Monitor circuit...

  • Page 66: Lamp And Float Control Circuit

    SWL3210 Service Manual LAMP AND FLOAT CONTROL CIRCUIT 5.4.4 1) Circuit flow Start switch position ON →start switch ACC→ →Safety switch fuse F3→outline light switch SA3 (I step) →outline light L1~L5→GND →Safety switch fuse F4→outline light switch SA3 (II step)→Head work lamp L6~L7→GND...
  • Page 67 SWL3210 Service Manual Lamp and float control circuit...

  • Page 68: Option Circuit

    SWL3210 Service Manual OPTION CIRCUIT 5.4.5 1) Circuit flow →Fuse F13 →wiper switch SA7 (I,II step) →wiper controller →wiper motor M2 →washing switch S4→wiper controller→ washing motor M3→GND →pressure switch SP3→reversing horn DL1→GND →fuse F12→warm air conditioner switch SA8 (I,II step)→warm air conditioner M4→GND Start switch position ON →...

  • Page 69: Travel System

    SWL3210 Service Manual 6 TRAVEL SYSTEM 6.1 TRAVEL SYSTEM COMPONENT TRAVEL SYSTEM POS. COD. PART NAME REMARK 名 称 马达 730250000041 MOTOR 302030000728 RUBBER PAD 橡胶垫 螺母 701427016001 垫圈 701504016003 WASHER 701103016048 BOLT 螺栓 链条 750313000014 CHAIN 螺母 701427014001 701519014001 WASHER 垫圈...

  • Page 70: Wheel Shaft

    SWL3210 Service Manual 6.1.1 WHEEL SHAFT REAR WHEEL SHAFT POS. COD. PART NAME REMARK 名 称 轮轴 814341020000 WHEEL SHAFT 骨架油封 730653000013 GASKET 702104065002 BEARING 圆锥滚子轴承 轮轴支座 814341010000 WHEEL SHAFT O 形圈 301020000025 O-RING 306060000003 CHAIN WHEEL 链轮 调整垫 305070000011 CUSHION 压板...
  • Page 71 SWL3210 Service Manual FRONT WHEEL SHAFT POS. COD. PART NAME REMARK 名 称 轮轴 814341020000 WHEEL SHAFT 730653000013 GASKET 骨架油封 圆锥滚子轴承 702104065002 BEARING 轮轴支座 814341010000 WHEEL SHAFT O 形圈 301020000025 O-RING 链轮 306060000003 CHAIN WHEEL 调整垫 305070000011 CUSHION 305030000011 PRESS PLATE 压板...

  • Page 72: Power Train Maintenance

    SWL3210 Service Manual 6.2 POWER TRAIN MAINTENANCE REMOVAL OF THE FRONT WHEEL SHAFT AND REAR WHEEL SHAFT 6.2.1 a. Clean the area of dirt and debris. b. Block the loader securely with four wheels clear of the ground. c. Remove the belly pan.
  • Page 73 SWL3210 Service Manual f. Loose the lock nut, untie the chain wheel. g. Remove the axles. h. Remove the chain wheel of the axle.
  • Page 74 SWL3210 Service Manual i. Remove the bearing of the axle. j. Remove the shift of the axle. K. Remove and discard oil seal.
  • Page 75 SWL3210 Service Manual l. Remove the shaft of the axle. m. Remove the outer bearing cups with an inside bearing puller or brass punch. Be careful if using the brass punch. n. Clean the gears bearing cones and cups in a cleaning solvent．...

  • Page 76: Cleaning And Inspection

    SWL3210 Service Manual CLEANING AND INSPECTION 6.2.2 1) Clean the gears， bearing cones and cups in a cleaning solvent． 2) Inspect the bearing cones and cups for flat areas， pitting， scoring and other damage． 3) Inspect the gears for flat areas， pitting， Scoring and other damage．...
  • Page 77 SWL3210 Service Manual 8) Reach through the inspection cover opening and install the inner bearing cone on the axle. Make sure it is seated properly in the cup． 9) Reach through the inspection cover opening and install and sprocket on the axle． The hub end of the sprocket must face the flange end of the axle．...

  • Page 78: Maintenance

    All the services done to the machine has to be registered in a register table given with the machine. Only stuff from SUNWARD has the capacity to fill up the register table. 7.2 ADVICE FOR THE MAINTENANCE Keep the machine always clean and tidy.

  • Page 79: Description For Machine Maintenance

    The fuel tank is located in the backside of the machine and has a capacity of 70L for SWL2810, 85L for SWL3210. Change all of fuel supply pipes every 2 years or 4000 hours (whichever occurs first). SAFETY BELT 7.3.2...

  • Page 80: Maintenance Plan

    SWL3210 Service Manual 7.4 MAINTENANCE PLAN A maintenance plan has been described in this manual in order to maintain the efficiency of the machine and his parts. It is recommendable to follow this plan. Be aware of the working hours by reading the hour meter.
  • Page 81 SWL3210 Service Manual 7.4.3.2 CLEANING THE OIL TANK’S BREATHER 7.4.3.3 CHECKING THE CYLINDER RODS 7.4.3.4 GREASING ALL OF PINS 7.4.4.1 CHECKING THE GEARING CHAIN TENSION 7.4.4.2 ADJUST THE CHAIN IF NECESSARY 7.4.4.3 CHECKING THE FAN BELT 7.4.4.4 CLEANING THE RADIATOR 7.4.4.5 CHECKING THE OIL LEVEL...
  • Page 82 SWL3210 Service Manual 7.4.6.5 CHANGING THE HYDRAULIC OIL TANK BREATHER 7.4.6.6 CHECKING THE TIGHTNESS OF CYLINDER HEAD SCREW 7.4.6.7 CHECKING THE LOOSENESS OF VALVE 7.4.7.1 CHANGING THE COOLANT 7.4.7.2 CHANGING THE SUCTION FILTER 7.4.7.3 CHECKING THE STARTER AND ALTERNATOR 7.4.8.1 DRAINING THE FUEL TANK...

  • Page 83: Before Starting

    SWL3210 Service Manual EFORE STARTING 7.4.1 7.4.1.1 CHECKING ENGINE OIL LEVEL • Cool down the oil if the engine was running before. In this case wait 15 minutes for cooling down the oil before carry out the check. • For checking the oil level, raise the dipstick (see photo below) and read the oil marks on it.

  • Page 84: Checking The Tires

    SWL3210 Service Manual • Make sure there is no sign of short circuit in the electrical system. • Make sure there is no corroded cable or fuses. Change all the corroded cables or fuses with same character. 7.4.1.6 CHECKING THE TIRES •...

  • Page 85: Checking The Coolant Level

    SWL3210 Service Manual • The operator has to conscious of he importance of the coolant system and also of the hydraulic circuit. 7.4.2.2 CHECKING THE COOLANT LEVEL • Cool down the engine in case it was running before. In this case wait 15 minutes for cooling down the engine before carry out the check.

  • Page 86: Greasing All Of Pins

    SWL3210 Service Manual 7.4.3.4 GREASING ALL OF PINS • Grease the pins specified in the item 5. 8 Lubrication Points. 7.4.4 VERY 250 HOURS OF OPERATION 7.4.4.1 CHECKING THE GEARING CHAIN TENSION • Every transmission side is compound with 2 chains. One chain for one wheel.

  • Page 87: Changing The Engine Oil

    SWL3210 Service Manual Proceed as follow to check the gear chain oil level: 1) Screw off the screw located in the bottom side on the chassis (See picture below). 2) If the oil reaches the high of the hole, there is enough oil. If the oil is lower than the hole, refill with the recommended type oil given in this manual.

  • Page 88: Checking The Nut Torque Of The Hydarulic Motor And The Hub Holding To The Chassis

    SWL3210 Service Manual Proceed as follow for changing the fuel filter located in the engine compartment (See picture below): 1) Remove the fuel filter. 2) Clean the gasket surface of filter head with a lint-free cloth. 3) Discard the O-ring.

  • Page 89: Every 500 Hours Of Operation

    SWL3210 Service Manual 7.4.5 EVERY 500 HOURS OF OPERATION 7.4.5.1 CLAEN THE FUEL-WATER SEPARATOR Proceed as follow for cleaning the fuel-water separator:： 1) Turn the handle to cut off the fuel flow into the separator. 2) Loosen the fuel-water separator by a ring (See picture below).

  • Page 90: Changing The Hydraulic Oil Filter

    SWL3210 Service Manual 1) Open the plug on the topside of the battery. 2) Check the acid level. The acid level has to be 6 mm above the plate edge. 3) Refill with distilled water if necessary. 3) Put back and tighten the plug.

  • Page 91: Changing The Air Filter

    SWL3210 Service Manual 4) Position a suitable container under the machine, so that the oil can flow into it. 5) Turn on the cock located under the hydraulic tank (See picture below). 6) Fill the circuit again with recommended hydraulic oil given in this manual.

  • Page 92: Checking The Pump's Pressure And The Valve

    SWL3210 Service Manual 4) Clean inside the filter-container. 5) Introduce the new filters carefully inside the filter-container. 6) Tighten the flanges and close the filter-container. Make sure the air’s entrance (5) is in the bottom side of the air filter.

  • Page 93: Every 2000 Hours Of Operation

    SWL3210 Service Manual EVERY 2000 HOURS OF OPERATION 7.4.7 7.4.7.1 CHANGING THE COOLANT • Never change the coolant just after stopping the engine, since the coolant is still warm. Let the coolant cool down until it goes under 40-45˚C. • Never loosen the coolant cap when the coolant is still hot. Warm water could spill out violently and produce burnings.

  • Page 94: Trouble Shooting

    SWL3210 Service Manual 7.4.9 TROUBLE SHOOTING Trouble Cause Solution Electric system • • Lamps do not work properly Fault cables Check and repair any even with engine running at loose terminal high speed connection Lamps come • • Faulty fan belt tension...
  • Page 95 SWL3210 Service Manual Trouble Cause Solution Power system • • Oil level too low Refill Oil pressure warming light • • Oil filter clogged Change filter remains on even with engine at high speed • • Oil unsuitable for the...
  • Page 96 SWL3210 Service Manual Trouble Cause Solution • • Fuel with low cetane Change with correct rating fuel • • Overheating Abnormal noises (during combustion or in mechanical • • Exhaust silencer Change parts) inside damaged • • Excessive valve Adjust valve clearance...
  • Page 97 SWL3210 Service Manual Trouble Cause Solution • • Incorrect setting of the Set valve max. pressure valve relevant to that direction • • Oil level too low Refill oil • • Exchanger clogged or Check and change if dirty necessary •...

  • Page 98: Information Of Manufacturer

    8 INFORMATION OF MANUFACTURER Company Name: Hunan Sunward Intelligent Machinery Co., Ltd. Brand: Address: No.16, Lixiang Road (M), Xingsha, Changsha, 410100 Hunan, China Tel: 0086 731 4020688 4020666 Service point: Information of Distributors...

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