Stiga 2021 Edition PARK 320 P Workshop Manual
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Stiga 2021 Edition PARK 320 P Workshop Manual

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WORKSHOP MANUAL
PARK
2021

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  • Page 1 WORKSHOP MANUAL PARK 2021...
  • Page 2 All brands, names, logos and trademarks mentioned belong to their respective owners. © by STIGA - No use of the illustrations or duplication, reproduction or translation, even partial, of the texts in this document may be made without explicit authorisation.

  • Page 3: Table Of Contents

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 1 - INTRODUCTION 2021 1 - INTRODUCTION Summary CONSULTATION GUIDE ..............3 1.1.1 Limitation of Responsibility ............3 1.1.2 Structure of the Manual ..............3 1.1.3 Symbols and Terminology used ............4 WORK SAFETY INSTRUCTIONS ............5 1.2.1 Qualification of operators ..............5 1.2.2 Basic equipment ................5 1.2.3...

  • Page 4: Symbols And Terminology Used

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 1 - INTRODUCTION 2021 1.1.3 Symbols and Terminology used a) Symbols They are used to draw the attention of the operator, reminding him to perform the interventions with the necessary attention and caution. Indicates operations that should be carried out with utmost care to avoid impairing the func- tionality and safety of the machine.

  • Page 5: Work Safety Instructions

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 1 - INTRODUCTION 2021 1.2 WORK SAFETY INSTRUCTIONS 1.2.1 Qualification of operators All maintenance, disassembly and repairs must be carried out by expert mechanics who are fa- miliar with all the accident prevention and safety regulations after reading through the procedures in this manual.

  • Page 6: Service Centre Procedures

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 1 - INTRODUCTION 2021 - test the engine in a well-ventilated environment or where there are adequate exhaust fume ex- traction systems; - do not pollute the environment with oil, petrol or other waste which has a strong impact on the environment.

  • Page 7: Fault Notification

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 1 - INTRODUCTION 2021 1.3.4 Fault notification The Manufacturer welcomes any notifications of faults that recur with particular frequency. It gives the opportunity for a careful inspection of the problem and the implementation of corrective action at production level.

  • Page 8: General Information

    , the model (1a) and the serial number (1b). The model and serial number must be shown when requests are made under Warranty, and are indispensable for spare part orders. STIGA S.p.A. Via del Lavoro, 6 - 31033 Castelfranco V.to (TV) - Italy Type: #############...

  • Page 9: Engine Identification

    2.2 MACHINE PREPARATION AND DELIVERY 2.2.1 Preliminary procedures All STIGA machines have been subjected to an accurate programme of checks before delivery. The machine are supplied at their most complete level and thanks to this the final assembly for the delivery is quick and easy.

  • Page 10: Tyre Pressure Check

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 10 / Open the case, remove the following parts from the packaging and put them on the floor to verify: – The battery (some models). – The steering wheel. –...

  • Page 11: Axial Steering Allowance Adjustment

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 11 / • Recharging the battery Charge and install the battery, following the specific instructions. 9.3.1] IMPORTANT The engine must never be operated with the battery disconnected. There is the risk of causing serious damage to the generator and the electrical system.

  • Page 12: Transportation And Handling

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 12 / • Steering chain Check that the steering chain is sufficiently tight and adjust it if necessary. • Various Carry out a general inspection of the machine, asking yourself these last questions: –...
  • Page 13 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 13 / a) Front part lifting WARNING! Engage the parking brake and place two wedges behind the rear wheels to prevent the machine from moving. ▶▶ Park 4WD machines: –...

  • Page 14: Spare Parts

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 14 / b) Rear part lifting WARNING! Position two wedges in front of the front wheels to prevent the move- ment of the machine. – Raise the machine using a jack that acts under the rear transmission assembly.

  • Page 15: Maintenance

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 15 / 2.5 MAINTENANCE 2.5.1 Criteria for maintenance The Instruction Handbook has a number of operations to be carried out by the Customer for a minimum of basic maintenance, and other operations not always within his capacity. For this reason the Service Centre should undertake to keep the machine in perfect working order adopting a routine maintenance schedule.
  • Page 16 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 16 / The following list describes the most common situations to which special attention should be paid. 1. Articulated joint screw ............... 35-50 Nm 2. Front transmission fixing nuts to frame ........20-25 Nm 3.

  • Page 17: Routine Maintenance Schedule

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 17 / 2.5.4 Routine maintenance schedule The routine maintenance schedule includes a series of interventions, distributed according to the following tables, divided by subject and purpose of the interventions. A) Machine Every Every...
  • Page 18 ● – Replacement of the transmission hydraulic oil filter ● ● [8.3.1] Only for K574T and K57V transmissions C) Stiga ST 450 / 500 engine - See engine manual for running modes Every Every Every First 5 Intervention Type hours...
  • Page 19 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 19 / E) Briggs & Stratton Vanguard Engine - See engine manual for running modes Every Every Every Intervention Type hours hours or every hours or every year year Check of the engine oil level...

  • Page 20: Lubrication

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 20 / 2.5.5 Lubrication 2a 2b 2a 2b Point Object Frequency Lubricant Equipment supports General purpose grease Front axle supports (4WD) General purpose grease Front axle hubs (2WD) General purpose grease Articulated joint General purpose grease...
  • Page 21 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 21 / a) Checking pictograms and safety labels These labels are considered an integral part of the safety devices. Always replace unread- able labels and restore missing ones, according to the figure shown here. b) Checking safety devices intervention The safety systems intervene according to two basic criteria: –...

  • Page 22: General Checks

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 22 / c) Checking operation of electrical safety devices If one of the above conditions does not occur, check the operation of the safety micros- witches, simulating the different situations of use as indicated in the specific chapter 9.3.2].
  • Page 23 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 23 / l) Bearings Check for abnormal noises where the bearings are. Check that there are no signs of wear or ab- normal backlash... m) Exhaust system Check for cracks, leaks or other damages.

  • Page 24: Technical Specifications And Dimensions

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 24 / 2.6 TECHNICAL SPECIFICATIONS AND DIMENSIONS 2.6.1 Technical specifications Model: Park... 320 P 320 PW 340 PWX 345 PWX ST 450 ST550 ST550 Honda Engine GCV530 (TRE 0701) (TRE 586VA) (TRE 586VA)
  • Page 25 WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 25 / Follow: Technical specifications Model: Park... 520 P 520 PX 620 PW 640 PWX 740 PWX ST 500 ST 500 ST600 ST550 B&S Engine Vanguard (TRE 0801) (TRE 0801) (TRE 586V) (TRE 586VA)

  • Page 26: Overall Dimensions

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 2 - INFORMATION FOR SERVICE CENTRES 2020 26 / 2.6.2 Overall dimensions 992,5 1960...

  • Page 27: Bodywork And Casings

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 27 / 3 - CASINGS AND FRAME Summary BODYWORK AND CASINGS ..............27 3.1.1 Removing the rear hood ...............27 3.1.2 Removal of the front casing of the belts ........28 3.1.3 Removal of the rear casings of the belts ........29 3.1.4...

  • Page 28: Casings And Frame

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 28 / 2. Unscrew the two nuts (2) and remove the hood (1) by sliding it off the support hinge (3). When assembling, pay attention to position the plastic washer (4) on the side of the support (3).

  • Page 29: Removal Of The Rear Casings Of The Belts

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 29 / 2. Unscrew the left screw (3). 3. Remove the front casing (1) from the left side of the machine. When assembling, carry out the steps described above in reverse, paying attention to position the hooking tooth (4) over the upper left edge of the right rear casing (5).
  • Page 30 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 30 / 3. Unscrew the two rear screws (5). 4. Unscrew the nut (6) and extract the rela- tive screw (7) that connects the left cas- ing (1) to the right casing (2).

  • Page 31: Removing The Casings Of The Steering Column

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 31 / 3.1.4 Removing the casings of the steering column 1. With the help of a pin punch, extract the elas- tic pin (1) and remove the steering column (2). 2.
  • Page 32 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 32 / 5. Unscrew the two side screws (9). 6. Unscrew the four screws (10) that secure the bumper (11) to the frame. 7. Tilt the front part of the bumper (11) forward, releasing it from the hooks (12) that secure it to the rear of the column.

  • Page 33: Remove The Cover Under The Seat

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 33 / 3.1.5 Remove the cover under the seat NOTE The cover under the seat consists of a rear casing and a front casing, connected to each other and fixed to the footboard. 1.
  • Page 34 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 34 / 2. From the right side, unscrew the two front screws (2) and remove the right casing (3) to access the engine control levers and the electrical components. When assembling, perform the steps de- scribed above in reverse order.

  • Page 35: Frame

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 35 / 3.2 FRAME 3.2.1 Disassembly and reassembly of the articulated joint pulleys NOTE This operation is required for pulley replacement and when the front and rear parts of the machine need to be separated.
  • Page 36 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 36 / 5. Remove the shim washer (15) placed be- tween the double pulley (16) and the spacer (14). 6. Unscrew the double pulley (16). 7. Remove the spacer (17) between the dou- ble pulley (16) and the frame.
  • Page 37 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 37 / ▶▶ Park 2WD : ● Disassembly - Loosen or remove both belts from the double pulley. 6.3.2] [ 6.3.3] Follow the photographic sequence of the images that depict the correct and necessary operat- ing steps.

  • Page 38: Separation Of The Two Parts Of The Machine

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 38 / 4. Remove the tightener arm (25). ● Reassembly Perform the steps described above in reverse order, taking care of: – correctly reposition all the washers and spacers previously removed, according to the sequence shown in the drawing;...
  • Page 39 WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 39 / 1. Remove the front casing of the belts 3.1.2]. 2. Remove the rear belt casings 3.1.3]. 3. Completely loosen the steering chain 4.2.1]. from 1 to 3 4.

  • Page 40: Replacement Of The Articulated Joint Bearings

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 3 - CASINGS AND FRAME 2020 40 / 3.2.3 Replacement of the articulated joint bearings 1. Separate the front part from the rear part and stabilize the rear of the machine 3.2.2] 2. Working from the top of the frame, eject the lower bearing (1) together with the spacer (2).

  • Page 41: The Steering System

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 41 / 4 - STEERING Summary THE STEERING SYSTEM ..............41 4.1.1 Description of the steering system ..........41 4.1.2 Steering system problems and remedies ........42 STEERING SYSTEM INTERVENTIONS ..........43 4.2.1 Disassembly of the chain and steering pinions ......43 4.2.2 Replacement of the steering wheel pinion ........45 4.2.3...

  • Page 42: Steering

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 42 / 4.1.2 Steering system problems and remedies An essential prerequisite for the operation of the steering valve is the axial backlash in the steer- ing, which however has to exist because otherwise the steering would be difficult. To check the steering functionality, first make sure the tyres are at the correct pressure, then per- form the check with the engine at the maximum rotation speed.

  • Page 43: Steering System Interventions

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 43 / 4.2 STEERING SYSTEM INTERVENTIONS 4.2.1 Disassembly of the chain and steering pinions NOTE The steering chain, supplied pre-assembled, is composed of three sections with differ- ent orientation of the links and two threaded ends; a yellow marking is placed in correspondence of the link in the centre of the entire length.
  • Page 44 WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 44 / IMPORTANT Check the wear of all the nylon pinions and replace any worn or damaged ones. To reassemble, perform the steps described above in reverse order, taking care of: –...

  • Page 45: Replacement Of The Steering Wheel Pinion

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 45 / 4.2.2 Replacement of the steering wheel pinion 1. Completely loosen the two nuts (1) and (2) of the adjusters to remove the tension from both the branches of the chain (3). 2.
  • Page 46 WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 46 / 4. Release the locking spring (4) of the parking brake lever. 5. Unscrew the front screw (5), unscrew the four nuts (6), located under the footboard in cor- respondence with the screws (7), and remove the steering column support (8).
  • Page 47 WORKSHOP MANUAL Chapter EDITION PAGE PARK 4 - STEERING 2020 47 / 8. Unscrew the screw of the eyelet fitting (13), appropriately collecting the oil still present in the pipes. 9. Remove the steering valve (14) together with the steering column (15) and the pinion (16). 10.

  • Page 48: Engine

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 48 / 5 - ENGINE AND FUEL TANK Summary ENGINE ....................48 5.1.1 Clutch removal ................48 5.1.2 Removal of the engine ..............49 5.1.3 Removal and replacement of the exhaust muffler ......51 5.1.4 Replacement of the throttle ............52 5.1.5...

  • Page 49: Removal Of The Engine

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 49 / 3. Unscrew the two screws (3) and remove the anti-rotational stop (4). 4. Move the tightener (5) towards the centre of the machine, as much as necessary to free the toothed belt (6) from the pulley (7).
  • Page 50 WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 50 / 2. Disconnect the engine wiring connectors, the choke motor cable (3) and the ground cables (4). NOTE Given the possibil- ity of using different engines, the images are only an ex- ample.

  • Page 51: Removal And Replacement Of The Exhaust Muffler

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 51 / 8. Proceed to harness and remove the engine. WARNING! Apply the lifting ropes in points that offer sufficient reliability and proceed with the removal of the engine, taking into account a weight of approximately 50-55 kg.

  • Page 52: Replacement Of The Throttle

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 52 / 5.1.4 Replacement of the throttle ▶▶ Park 5xx - 6xx - 7xx : 1. Remove the dashboard casing. 3.1.6] 2. Unscrew the screw (1) located in the lower left part of the dashboard.
  • Page 53 WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 53 / ▶▶ Park 3xx : 1. Remove the dashboard casing. 3.1.6] 2. Remove the rear hood 3.1.1]. 3. Unscrew the screw (1) and remove the throt- tle knob (2).

  • Page 54: Replacement Of The Throttle Cable

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 54 / 5.1.5 Replacement of the throttle cable ▶▶ Park 5xx - 6xx - 7xx : 1. Access the throttle levers by removing the upper part of the dashboard. 5.1.4] from 1 to 4.

  • Page 55: Replacement Of The Choke Cable

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 55 / 5.1.6 Replacement of the choke cable 1. Remove the dashboard casing[ 3.1.6] 2. Remove the rear hood 3.1.1]. 3. Loosen the clamp screw (1) and disconnect the “Z”...

  • Page 56: Fuel Tank

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 56 / 5.2 FUEL TANK 5.2.1 Removal and replacement of the tank 1. Remove the rear hood 3.1.1] WARNING! All operations concerning the tank must be carried out with the cold machine.
  • Page 57 WORKSHOP MANUAL Chapter EDITION PAGE PARK 5 - ENGINE AND FUEL TANK 2020 57 / 5. Empty the tank of the remaining petrol. 6. With the help of a screwdriver, pull out the tap (10) and the cap (11). 7. Clean the filter (12) thoroughly. When assembling, perform the steps described above in reverse order, taking care to: –...

  • Page 58: Belt Requirements

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 58 / 6 - TRANSMISSION BELTS Summary BELT REQUIREMENTS ..............58 6.1.1 Characteristics of the original belts ..........58 6.1.2 Main causes of belt problems ............59 ARRANGEMENT AND FUNCTION OF THE BELTS ......60 6.2.1 General information ..............60 REPLACEMENT OF THE BELTS ............61...

  • Page 59: Main Causes Of Belt Problems

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 59 / Belts available on the Example Original spare belts Notes market Acceleration. Some belts only en- The belt follows the speed Standard belts are made gage with the pulleys of the engine in continuous of natural rubber and only when the engine is...

  • Page 60: Arrangement And Function Of The Belts

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 60 / Problem Probable cause Corrective action 1. Rapid belt wear Friction Check the belt path Pulleys misalignment Check Worn or damaged pulley grooves Replace pulleys Inadequate belt Check the parameters and replace the belt with the appropriate original spare part Belt slippage...

  • Page 61: Replacement Of The Belts

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 61 / ▶▶ Park 2WD machines: A) Engine / transmission belt 6.3.1]. B) Engine / articulated joint axis belt 6.3.2]. 6.3 REPLACEMENT OF THE BELTS 6.3.1 Replacement of the engine / transmission belt. (Ref. A) 1.

  • Page 62: Replacement The Engine / Articulated Joint Axis Belt (Ref. B)

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 62 / 4. Remove the belt (6) by passing it over the fan of the rear transmission unit (7). When assembling, perform the steps de- scribed above in reverse order, taking care to reassemble the tightener (4) with the protrud- ing part of the hub facing upwards.
  • Page 63 WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 63 / 4. Unscrew the central screw (4) to remove the arm (5) of the tightener (6) together with the spring (1) and the protective casing (7). 5. Remove the double pulley (8) together with the belt (9).

  • Page 64: Replacement Of The Articulated Joint / Pto Belt (Ref. C)

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 64 / 6.3.3 Replacement of the articulated joint / PTO belt (Ref. C) ▶▶ Park 4WD machines: 1. Remove the front casing 3.1.2] and the right and left rear casings 3.1.3] paying attention to the fact that their removal caus-...
  • Page 65 WORKSHOP MANUAL Chapter EDITION PAGE PARK 6 - TRANSMISSION BELTS 2020 65 / 2. Unscrew the nut (2) and remove the lever (3) on which the tightener (4) is fixed. When assembling, perform the steps de- scribed above in reverse order. ▶▶...

  • Page 66: Wheels And Tyres

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 66 / 7 - WHEELS - TRANSMISSION - BRAKE Summary WHEELS AND TYRES ................66 7.1.1 Disassembly of the rear wheels and hubs ........66 7.1.2 Disassembly of the front wheels and hubs ........68 7.1.3 Tyres .....................70 REAR TRANSMISSION UNIT .............70...

  • Page 67: Wheels - Transmission - Brake

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 67 / 3. Unscrew the three nuts (3). 4. Remove the wheel (4) To disassemble the hub: 5. Remove the Benzing ring (5) and remove the shoulder washer (6).

  • Page 68: Disassembly Of The Front Wheels And Hubs

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 68 / 7.1.2 Disassembly of the front wheels and hubs ▶▶ Park 4WD machines: 1. Lift the front part and stabilize the machine 2.3.2]. 2. Remove the Benzing ring (1) and remove the equipment support (2), with the two shoulder washers (3).
  • Page 69 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 69 / ▶▶ Park 2WD machines: 1. Lift the front part and stabilize the machine 2.3.2]. 2. Pull out the cotter pin (1) and remove the washer (2) and the tool holder (3).

  • Page 70: Tyres

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 70 / 7.1.3 Tyres The tyres used are «Tubeless» type and so any repair following a puncture must be done by a tyre specialist according to the methods used for this type of tyre. WARNING! Always replace deformed rims as they could impair the hold of the tyre.
  • Page 71 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 71 / 5. Manually move the tightener (3) towards the centre of the machine, as much as necessary to free the belt (4) from the pulley (5). 6.
  • Page 72 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 72 / 8. Disconnect all hydraulic connections: ▶▶ 4WD – unscrew the fittings (18 - 19 - 20 - 21) marking them appropriately so as not to make mistakes during assembly;...

  • Page 73: Front Transmission Unit (Park 4Wd Only)

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 73 / When assembling, perform the steps described above in reverse order, taking care to: – ALWAYS replace the crown fastener (9); – replace all the seals of the hydraulic fittings; –...

  • Page 74: Removal Of The Front Transmission Unit

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 74 / 7.3.2 Removal of the front transmission unit 1. Lift the front part and stabilize the machine 2.3.2]. 2. Remove the front wheels 7.1.2] from 1 to 3.
  • Page 75 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 75 / 6. Disconnect all hydraulic connections: – unscrew the fittings (11) and (12) on the rear part of the transmission unit, marking them appropriately so as not to make mistakes during the assembly: 11 = Rear transmission return pipe;...
  • Page 76 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 76 / When assembling, perform the steps described above in reverse order, taking care to: – replace all the seals of the hydraulic fit- tings; – tighten the nuts (18) to a torque of 20-25 –...

  • Page 77: Oil Tank

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 77 / 7.4 OIL TANK 7.4.1 General Information The pipes leading to the oil tank are equipped with a “Click” type hose clamp (1). IMPORTANT This type of clamp (1) is not reus- able and the replacement requires a specific tool for the application NOTE If this type of clamp and its applicator are...
  • Page 78 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 78 / ▶▶ Park 2WD machines: 1. Place a container under the rear transmis- sion unit and drain all the oil by unscrewing the filter cap (1). 2.

  • Page 79: Traction Control Cable

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 79 / 7.5 TRACTION CONTROL CABLE 7.5.1 Replacement and adjustment of the traction control cable 1. Disassemble the exhaust muffler. 5.1.3] 2. Remove the left mudguard (1), fixed by the screws (2) and (3).
  • Page 80 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 80 / 6. Unscrew the two screws (13), remove the plate (12) and release the cable (6) from the ring of the support bracket (14). 7. Unscrew the nut (15) and disconnect the ball joint (16) of the cable (6) from the front lever (17) of the traction.

  • Page 81: Speed Adjustment

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 81 / When assembling, perform the steps described above in reverse order, taking care to: – Insert the cable starting from the front, with the arrow stamped on the cable facing the front of the machine.

  • Page 82: Brake

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 82 / 7.6 BRAKE 7.6.1 General principles In a machine with hydrostatic transmission, both two and four-wheel drive, the braking action is given by the return to the “neutral” position of the traction control pedal. With the pedal in “neutral”, the passage of the oil from the pump to the hydraulic motor closes, which, no longer powered and no longer able to allow the oil to return, slows down the stroke of the machine until it stops.

  • Page 83: Replacement And Adjustment Of The Parking Brake Cable

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 83 / 7.6.4 Replacement and adjustment of the parking brake cable WARNING! With the removal of the brake cable, the parking brake function is com- pletely lost and therefore wedges must be placed in front of the wheels to prevent any accidental movement of the machine.
  • Page 84 WORKSHOP MANUAL Chapter EDITION PAGE PARK 7 - WHEELS - TRANSMISSION - BRAKE 2020 84 / ● Pedal adjustment IMPORTANT The pedal (14) must have a back- lash of at least 5-10 mm. 5-10 mm If there is no backlash or the backlash should ex- ceed the quoted value, it is necessary to act ap- propriately and in equal measure on adjusters (1) and (4) until the optimal condition is obtained.

  • Page 85: General Information

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 85 / 8 - HYDRAULIC SYSTEM Summary GENERAL INFORMATION ............... 85 8.1.1 Description ................. 85 8.1.2 Safety criteria in the maintenance of the hydraulic system ..86 8.1.3 Diagram of hydraulic connections ..........86 8.1.4 Configurations ................

  • Page 86: Hydraulic System

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 86 / 8.1.2 Safety criteria in the maintenance of the hydraulic system WARNING! Hydraulic oil under pressure can be very dangerous if pipes, lines or other distribution parts lose oil. To avoid personal injury, always wear protective gloves and goggles when working on the hydraulic system.

  • Page 87: Configurations

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 87 / ▶▶ Park 2WD machines: 35-42 Nm 35-42 Nm 30-37 Nm 24-31 Nm 60-65 Nm 60-65 Nm 24-31 Nm 24-31 Nm 1. Rear transmission unit 2. Hydraulic steering valve 3.

  • Page 88: Operation Of The Hydraulic System

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 88 / 8.2 OPERATION OF THE HYDRAULIC SYSTEM 8.2.1 Components description and functioning The engine drives the loading pump (1d) which feeds the main pump (1b) at a constant speed. The oil, introduced into the main pump during operation, replaces the oil leaking from the rear (1) and front (5) axle transmissions.
  • Page 89 WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 89 / ▶▶ Park 4WD machines: ● Forward operation ● Reverse operation Legend components 2. Oil tank 9. Drainage line 3. Connection with the hydraulic 10. Drive pedal 1. Rear axle steering valve 1a Loading pump (35-45 bar) 4.
  • Page 90 WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 90 / ▶▶ Park 2WD machines: ● Forward operation ● Reverse operation Legend components 2. Oil tank Colour and pressure legend 3. Connection with the hydraulic 1. Rear axle steering valve = Delivery (150 bar) 1a Loading pump (35-45 bar)

  • Page 91: By-Pass Valves

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 91 / 8.2.2 By-pass valves The by-pass valve has the purpose of making it possible to push the machine by hand, without strong resistance due to the resistance of the oil in the circuits in the absence of pressure. When a by-pass valve is open, it allows the oil to flow into the engine casing and therefore the pressure drop on the engine is neutralized.

  • Page 92: Troubleshooting Of The Hydraulic System

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 92 / The steering unit is connected to the steering wheel via the steering column. During the steering, the steering wheel moves a gear that has an orbital movement with respect to the external toothed gear.

  • Page 93: Troubleshooting Of The Hydraulic Steering Valve

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 93 / Problem Probable cause Solution Reduced speed and irregular The inlet filter is clogged Clean the filter driving. The front wheels don’t move One or more wheel axle keys Replace are broken The rear wheels don’t move...

  • Page 94: Maintenance Of The Hydraulic System

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 94 / 8.3 MAINTENANCE OF THE HYDRAULIC SYSTEM 8.3.1 Rear transmission unit filter replacement NOTE Draining the oil is facilitated if it is carried out before it cools down completely. NOTEThe oil must be drained with the by-pass open and the cap of the oil tank unscrewed.

  • Page 95: System Emptying And Filling

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 95 / 5. Refit the filter cap (1). Only for Park 4WD: Screw the two drain plugs (2) and (3) back on, taking care to always replace the plugs (2) and (3) if the seals are damaged.
  • Page 96 WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 96 / 4. Place a container under the front transmission unit and drain all the oil by unscrewing the two drain plugs (6) and (7). 5. Let all the oil flow into the container. ▶▶...

  • Page 97: Dynamic Balancing Valve (Smart By-Pass)

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 97 / 11. Bleed the air that has entered the system by operating the traction pedal several times in forward and reverse, and steer several times in both directions. 12.

  • Page 98: Valve Disassembly

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 98 / 8.4.2 Valve disassembly NOTE The valve must be removed with the by- pass open. 1. Loosen the two nuts (1) of the elbow fitting, ap- propriately collecting the oil still present in the pipes.
  • Page 99 WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 99 / 2. Keeping the nut (4) still, turn the screw (5) until the desired gap is obtained under the slide (6) measured with a feeler gauge. 3. Screw the internal valve (2) back into the valve body (1) until the end.

  • Page 100: Hydraulic Diagrams

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 100 / 8.5 HYDRAULIC DIAGRAMS 8.5.1 Park 4WD Components legend 2. Oil tank 3. By-pass 1. Rear transmission unit 4. Steering valve (Booster) 1a Loading pump (35-45 bar) 5. Front motor 1b Pump 6.

  • Page 101: Park 2Wd

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 8 - HYDRAULIC SYSTEM 2020 101 / 8.5.2 Park 2WD Components legend 2. Oil tank 3. By-pass 1. Rear transmission unit 4. Steering valve (Booster) 1a Loading pump (35-45 bar) 1b Pump 1c Safety valve 1d Filter 1e Rear motor a.

  • Page 102: General Information

    9.3.12 Diagnostics of electromagnetic clutch problems ......118 9.3.13 Checking the function of the electromagnetic clutch ......119 9.3.14 Bluetooth module ................120 ELECTRICAL WIRING DIAGRAMS ............ 122 9.4.1 Wiring diagram for Stiga - B&S engines .........122 9.4.2 Wiring diagram for Honda engines ..........123 9.1 GENERAL INFORMATION 9.1.1...

  • Page 103: Safety Regulations

    (for use on joints and connections), and an assortment of automotive type wire (in several colours). IMPORTANT STIGA highly recommends that all interventions are performed in a professional manner. The use of the tubing to cover joints and the soldering of connections contribute to a pro- fessional looking job.

  • Page 104: Electrical Measure Gauges

    STIGA does not recommend attempting to repair electrical components. Most do not lend themselves to repair and you would have more money invested in “time of repair” than the part would cost and the results may not be as good.

  • Page 105: Electrical Measurements

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 105 / 9.1.5 Electrical measurements • Voltage measurement There are two basic rules to be remembered when using a voltmeter. A voltmeter measures the voltage difference between the test leads and the voltmeter is always connected across the circuit under test.
  • Page 106 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 106 / Problem Probable cause Solution ...] Check the connection cables. – The battery does not power the board. Check the battery condition. [9.3.1] 1) With the ignition key in position «...
  • Page 107 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 107 / Problem Probable cause Solution ...] Check that the charging cable is not disconnected and recharge the – battery. Insufficient charging. Check that there are no leaks caused by cables with deteriorated –...

  • Page 108: Description And Checks Of Electrical Components

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 108 / 9.3 DESCRIPTION AND CHECKS OF ELECTRICAL COMPONENTS 9.3.1 Battery NOTE - The machine comes equipped with a maintenance-free battery that requires no regular maintenance except the cleaning of the terminals and the recharging in case of a voltage drop. DANGER! Battery poles, terminals and related accessories contain lead and lead compounds, chemicals known to cause cancer and damage to the reproductive appara-...
  • Page 109 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 109 / 3. Scrub the exterior of the battery and cable terminals with a non-metallic brush which has been dipped into a mixture of baking soda and water. 4. After cleaning, apply a thin coat of grease or petroleum jelly to terminals and cable ends to delay corrosion.

  • Page 110: Checking The Switches And Micro Switches Function

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 110 / IMPORTANT - The machine used for jump starting should have a 12 volt battery with at least 500 cold cranking amperes, and a negatively grounded system. DANGER! FROZEN BATTERIES CAN EXPLODE and result in death or serious in- jury.
  • Page 111 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 111 / Disconnect the connector and connect the tester tips to the different contacts of the component concerned; the reading must correspond to what is indicated in the following table, where the red continuous line in- dicates the internal electrical continuity.

  • Page 112: Replacing The Control Switches

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 112 / 9.3.3 Replacing the control switches The switches are press-fitted into their respective housings. To replace a switch: 1. Disconnect the connector (1). 2. Using a screwdriver or a similar tool, press the locking tabs (2) on both sides of the switch (3).

  • Page 113: Front Socket

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 113 / 9.3.6 Front socket This socket allows the connection of the electrical users of the work equipment with the electrical system of the machine. To check the functioning of the socket: 1.

  • Page 114: Relay Location And Function

    There are also a number of mechanical issues that may cause the problem. The starter solenoid used on STIGA machines is a sealed unit used to actuate the starter motor on the engines. These solenoids may have three or four connections. The two major connections carry high current to operate the starter motor.
  • Page 115 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 115 / 4. Move the dashboard casing (3) to access both screws (4) of the front of the crossbar (2). 5. Unscrew the two screws (4) located on the front part 6.

  • Page 116: Checking The Function Of The Relays

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 116 / The table below indicates the functions of each relay, with reference to the colours of the wiring cables. Connections Function PTO relay: it intervenes if the conditions necessary to operate the work equip- ment are not met during the work phase Safety relay: it intervenes if the necessary conditions are not met during the work phase (operator presence)

  • Page 117: Fuse Location And Function

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 117 / 9.3.10 Fuse location and function Fuses are inserted in electrical circuits to protect the circuits from damage due to overload or short circuits. Fuses are a “weak link” in the circuit. They contain a metal link designed to melt when a certain current value is exceeded thus opening or disconnecting the wiring.

  • Page 118: Diagnostics Of Electromagnetic Clutch Problems

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 118 / 3. Disconnect the connector (2). 4. Undo the two screws (3) and remove the entire light (4). NOTE The light is available as a spare part and as an assembled element, therefore it’s not possible to disassemble it and replace in- dividual components.

  • Page 119: Checking The Function Of The Electromagnetic Clutch

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 119 / Problem Probable cause Solution 2) Symptom: The brake does not start. Worn armature / brake poles • End of the clutch life • Replace the clutch • Check and repair leaks Contaminated friction surfaces •...

  • Page 120: Bluetooth Module

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 120 / The clutch is engaged by applying current to the coil connection. This results in a current flowing through the coil, magnetizing the coil pulling the armature onto the rotor with sufficient force to hold the two pieces together, connecting the output and the input shafts firmly together.
  • Page 121 WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 121 / 2. Identify the flying connector (1) located inside. 3. Connect the Bluetooth module (2) to the con- nector (1). 4. Fasten the Bluetooth module (2) to the wiring harness using a clamp (3).

  • Page 122: Electrical Wiring Diagrams

    PARK 9 - ELECTRICAL SYSTEM 2020 122 / 9.4 ELECTRICAL WIRING DIAGRAMS 9.4.1 Wiring diagram for Stiga - B&S engines 1b 1c Components 7. Cutting deck height adjustment switch 8. Parking brake switch 1. Engine 9. Seat switch (Operator presence) a.

  • Page 123: Wiring Diagram For Honda Engines

    WORKSHOP MANUAL Chapter EDITION PAGE PARK 9 - ELECTRICAL SYSTEM 2020 123 / 9.4.2 Wiring diagram for Honda engines Components 8. Parking brake switch 9. Seat switch (Operator presence) 1. Engine 10. 10 A fuse a. Charging regulator 11. 20A fuse b.
  • Page 124 STIGA S.p.A - Via del Lavoro, 6 - 31033 Castelfranco Veneto (TV) - Italy www.stiga.com...

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