Download Print this page

Advertisement

Quick Links

IMPORTANT NOTICE
The information contained herein is intended for
Service Operations and professionals only, able
to competently perform the operations described
herein, using the appropriate equipment in order
to safeguard se-curity and performance of the ma-
chine.
The manufacturer is not liable for damages or
injuries arising from operations performed by
individuals or inadequate facilities.
WORKSHOP MANUAL
TH 118 SD - Edition 2018--->....
• The Manufacture reserves the right to make any im-
provements to the product of a technical or commercial
nature that may be necessary. There maybe, therefore,
differences between the various series of machines
and that described here, though the basic features and
various repair methods will remain the same.
• © by STIGA - No use of the illustrations or duplica-
tion, reproduction or translation, even partial, of the
texts in this document may be made without explicit
authorization.
• All brands, names, logos and trademarks mentioned
belongto their respective owners.

Advertisement

loading
Need help?

Need help?

Do you have a question about the TH 118 SD and is the answer not in the manual?

Questions and answers

Summary of Contents for Stiga TH 118 SD

  • Page 1 • © by STIGA - No use of the illustrations or duplica- chine. tion, reproduction or translation, even partial, of the...
  • Page 2 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE HOW TO USE THE MANUAL TH 118 SD 2018 1 of 2 B) Identification and number of the page based on 3. Maintenance GENERAL INFORMATIONS the following criteria: This chapter covers the main aspects of a servi c­...
  • Page 3 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE HOW TO USE THE MANUAL TH 118 SD 2018 2 of 2 understanding how the system functions and to fa­ The map is a search tool that provides instant access TERMINOLOGY AND ABBREVIATIONS cilitate the pinpointing of any problems.
  • Page 4 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 6 Engine - Fuel Tank General informations RELATED TOPICS: Different fittings are foreseen for this machine which can imply the use of different engines with­...
  • Page 5 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 6 Transmission - Brake - Wheels General informations RELATED TOPICS: The use of outsourced third­party hydrostatic drive units is foreseen on this machine.
  • Page 6 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 3 of 6 Cutting Deck General informations RELATED TOPICS: The terms “Cutting deck” or “Equipment” refer to the cutting­means assembly, connected to the machine PTO by means of a belt.
  • Page 7 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 4 of 6 Steering General informations RELATED TOPICS: ­­­ Adjustments and tuning Related topics Steering allowance adjustment ............4.6] Removal of external parts and main assemblies Repairs Dismantling of the steering components ..........
  • Page 8 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 5 of 6 Body General informations RELATED TOPICS: Different outfittings are foreseen for this machine which can imply the use of different bodywork designs. Adjustments and tuning...
  • Page 9 WORKSHOP MANUAL INDEX OF FUNCTIONAL UNITS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 6 of 6 Electrical System General informations RELATED TOPICS: ­­­ Information and Verifications Related topics Troubleshooting of the electrical system ..........7.1] Cutting in of the safety devices ............
  • Page 10 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE IDENTIFICATION AND PROCEDURES TH 118 SD 2018 1 of 2 A) Identification General informations 1) Machine This chapter covers all the main aspects of the Each machine has a label attached (1) under the dri- re la tionship between the Manufacturer and the ver’s seat which shows the technical specifications,...
  • Page 11 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE IDENTIFICATION AND PROCEDURES TH 118 SD 2018 2 of 2 B) Guarantee validity The guarantee is supplied under the terms and the limits of the contractual relations in being. As far as the engine and the transmission unit are concerned, the conditions given by their respective manufactur- ers apply.
  • Page 12 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE SAFETY REGULATIONS TH 118 SD 2018 1 of 2 A) Qualification of operators – not endorse any repair or modification on the ma- General informations chine or the engine which results in a chan ge in...
  • Page 13 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE SAFETY REGULATIONS TH 118 SD 2018 2 of 2 – ensure that other persons cannot accidentally car- ry out actions that may physically endanger those working on the machine. D) Necessary equipment All the operations can be carried out with the tools nor mally used in a good garage.
  • Page 14 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE TOOLS TH 118 SD 2018 1 of 1 All work can be carried out using the tools normally General informations a vailable from a good workshop. However, it is ad vi- sable to have a set of special tools (1 ÷ 8).
  • Page 15 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE LIFTING AND STABILISING TH 118 SD 2018 1 of 2 A) Lifting B) Stabilising the front part General informations There are four points on the machine that are to be With the parking brake is engaged, the front part of This chapter covers the main aspects of a servic­...
  • Page 16 CHAPTER REVISION FROM ... PAGE LIFTING AND STABILISING TH 118 SD 2018 2 of 2 Position a jack under the transmission unit and lift it enough to insert a 170 mm high block (6) under the lower section of the chassis, then release the jack.
  • Page 17 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE PRACTICAL HINTS TH 118 SD 2018 1 of 2 A) Fitting snap rings A typical situation has the pin (3) fixed by a self-lock- General informations ing nut (4) with two anti-friction washers (5) in be tween One side of the “Benzing”...
  • Page 18 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE PRACTICAL HINTS TH 118 SD 2018 2 of 2 C) Crown fasteners Some pin ends (6) are secured by crown fasteners (7). During dismantling, these fasteners are always da maged and lose their hold, so they should never be reused.
  • Page 19 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CRITERIA FOR MAINTENANCE TH 118 SD 2018 1 of 1 The Instruction Handbook has a number of General informations operations to be carried out by the Customer for a minimum of ba sic maintenance, and oth- In questo capitolo vengono trattati i criteri di in ter­...
  • Page 20 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE TROUBLESHOOTING AND REMEDIES TH 118 SD 2018 1 of 3 1. Engine and Tank General informations Problem Probable cause Solution This chapter helps achieve a rapid identification Low battery Recharge [7.9] and solution to the most recurrent problems, clas­...
  • Page 21 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE TROUBLESHOOTING AND REMEDIES TH 118 SD 2018 2 of 3 Important informations 2. Transmission - Brakes - Wheels Characteristics of the original belts Problem Probable cause Solution Slack belt Adjust [4.3] The standard belts on the market have different...
  • Page 22 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE TROUBLESHOOTING AND REMEDIES TH 118 SD 2018 3 of 3 Important informations 3. Cutting deck Characteristics of the original blades Problem Probable cause Solution Slack belt Adjust the engagement [4.1] The blades do not...
  • Page 23 WORKSHOP MANUAL ADJUSTING THE ENGAGEMENT AND CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 1 CHECKING THE BLADE BRAKE A) Adjusting blade engagement General informations Lower the cutting deck completely. The blades are driven by the engine by means of a “V”...
  • Page 24 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE BRAKE ADJUSTMENT TH 118 SD 2018 1 of 1 The adjustment is to be made with the parking bra- To adjust the release cam (11) position to the pin General informations ke engaged and consists of altering the length of the (12), position the pawl (13) on any tooth on the rack spring (4) to the best measurement.
  • Page 25 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE DRIVE BELT ADJUSTMENT TH 118 SD 2018 1 of 1 The tensioner is to the right of the steering unit and General informations accessible from the front hood, turning the wheels fully to the right.
  • Page 26 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE DRIVE PEDAL ADJUSTMENT TH 118 SD 2018 1 of 1 A) Adjusting the pedal in the “neutral” position the nuts (4) until reaching the desired situation. Taking General informations care not to accidently change the position of the lever Adjustment of the pedal position must be carried out (1) during the adjustment.
  • Page 27 CHAPTER REVISION FROM ... PAGE ALIGNING THE CUTTING DECK TH 118 SD 2018 1 of 2 Check the tyre pressures. If one or more tyres have Turn the screw (6) until the tip can be placed on the General informations been replaced or you find differences in diameter, do cam step (7) corresponding with position “1”, then...
  • Page 28 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE ALIGNING THE CUTTING DECK TH 118 SD 2018 2 of 2 Loosen the nuts (13), the screws (15) and the lock- C) Adjustment of the longitudinal position Set the lifting lever to position «1»- nuts (14-16) on the right and left-hand side, so that the deck is resting firmly on the blocks.
  • Page 29 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE STEERING GEOMETRY ADJUSTMENT TH 118 SD 2018 1 of 1 NOTE Before any other action, check that the joint B) Steering allowance adjustment General informations fastenings have not worked loose and align the front wheels.
  • Page 30 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CHECKING BLADES ALIGNMENT TH 118 SD 2018 1 of 1 Remove the cutting deck. General informations Excessive vibration when cutting and an uneven WARNING! Always wear strong gloves cut can be due to misalignment of the blades when handling the bla des.
  • Page 31 WORKSHOP MANUAL REMOVING, SHARPENING AND BA LANCING CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 2 THE BLADES Remove the cutting deck General informations A badly sharpened blade causes grass to be co­ WARNING! Always wear protective gloves me yellow and reduces grass collection capabil­...
  • Page 32 WORKSHOP MANUAL REMOVING, SHARPENING AND BA LANCING CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 2 THE BLADES B) Sharpening and balancing Always sharpen both cutting edges of the blade (2) u sing a medium grade grinder. Sharpening must on- ly be done from the rounded side, removing as lit tle material as possible.
  • Page 33 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CHANGING OIL IN THE HYDRAULIC CIRCUIT TH 118 SD 2018 1 of 3 A) Draining oil from the transmission units General informations: and hydraulic circuit Oil in the hydraulic circuit is subject to high pres­...
  • Page 34 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CHANGING OIL IN THE HYDRAULIC CIRCUIT TH 118 SD 2018 2 of 3 Place a container to collect oil near the rear transmis- B) Filling the transmission units and ● Final operations sion.
  • Page 35 CHAPTER REVISION FROM ... PAGE CHANGING OIL IN THE HYDRAULIC CIRCUIT TH 118 SD 2018 3 of 3 – push the reverse run pedal to around 3/4 of its stroke, and keep the machine running for about 2 minutes, without pushing the pedal down all the way.
  • Page 36 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF FRONT HOOD TH 118 SD 2018 1 of 1 To remove the hood, disconnect the headlight con- General informations nector (1). The removal of the front hood gives greater ac­ ces sibility to: –...
  • Page 37 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE WHEEL COVER TH 118 SD 2018 1 of 2 A) Removing the rear of the wheel cover only General informations Removing the wheel cover gives access to: – the mount for the lever to raise the deck;...
  • Page 38 CHAPTER REVISION FROM ... PAGE REMOVAL OF THE WHEEL COVER TH 118 SD 2018 2 of 2 The wheel cover (22) is fixed by two screws (23) lo- For assembly, follow the procedure described above cated under the side footboards and two rear screws in reverse, taking care to correctly insert the two side (24).
  • Page 39 WORKSHOP MANUAL REMOVING THE DASHBOARD CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 2 AND FRONT COVER A) Removing the dashboard General informations Models with front tank: Use a screwdriver to remove the central cover (1a) of...
  • Page 40 WORKSHOP MANUAL REMOVING THE DASHBOARD CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 2 AND FRONT COVER Disconnect the accelerator cable terminal from the B) Removing the front cover engine and disconnect all remaining electrical con- nections and the starter cable (where present).
  • Page 41 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE ENGINE TH 118 SD 2018 1 of 2 Remove the front hood. General informations Lower the cutting deck completely. Since there are different types of drive, the stag­ es de scribed here refer to those shared or similar in all types of engine.
  • Page 42 CHAPTER REVISION FROM ... PAGE REMOVAL OF THE ENGINE TH 118 SD 2018 2 of 2 NOTE Some engines are held with screws of differ­ ent length and in different positions, so it is best to Remember to fit the clamps back on the fuel label them so that no errors are made on reassembly.
  • Page 43 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE REAR AXLE TH 118 SD 2018 1 of 2 Remove the rear part of the wheel cover Plug the remaining open holes so that dust or impuri- General informations Remove the rear tank (if installed) ties cannot enter.
  • Page 44 CHAPTER REVISION FROM ... PAGE REMOVAL OF THE REAR AXLE TH 118 SD 2018 2 of 2 The transmission unit (12) is supported by a holder Reconnect the rear fit- (13) fixed by a screw with nut (14) and is fixed to the tings of the hydraulic chassis by four screws with relative nuts (15).
  • Page 45 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE FRONT AXLE TH 118 SD 2018 1 of 2 Lift the front part of the machine. General informations: Remove the front wheels. The front axle is made up of a sealed single block...
  • Page 46 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE FRONT AXLE TH 118 SD 2018 2 of 2 Unscrew the nuts (8) and remove both steering tie- If the unit needs to be replaced, the supporting bracket rods (9).
  • Page 47 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVAL OF THE CUTTING DECK TH 118 SD 2018 1 of 2 Lower the cutting General informations deck completely. Removing the cutting deck facilitates all opera­ tions involving the blade connecting toothed belt and the overhaul and replacement of the hubs, bea rings or blade shafts.
  • Page 48 CHAPTER REVISION FROM ... PAGE REMOVAL OF THE CUTTING DECK TH 118 SD 2018 2 of 2 Remove the two split-pins (8) of the two pins (9) of the front connec ting rods (10). Remove the two split-pins (10) of the rear pins and...
  • Page 49 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVING THE REAR TANK TH 118 SD 2018 1 of 2 Undo the screw (1) and remove the knob (2), then re- General informations: move the central safety guard (3) fastened in place by the screw (4).
  • Page 50 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REMOVING THE REAR TANK TH 118 SD 2018 2 of 2 During reassembly, make sure the protuberance (12) of the tank is correctly positioned in its seat (13) on the chassis. Complete the assembly process, follow the steps de-...
  • Page 51 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REPLACEMENT OF TYRES AND WHEELS TH 118 SD 2018 1 of 1 A) Tyres On assembly it is advisable to spread grease on the General informations shaft to facilitate the next wheel removal.
  • Page 52 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REPLACEMENT OF FRONT WHEEL BEARINGS TH 118 SD 2018 1 of 1 Dismantle the front wheel. General informations ­­­ The front wheel bearings (1) are force splined into the front wheel hub. Related topics...
  • Page 53 WORKSHOP MANUAL DISMANTLING OF THE STEERING CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 3 COMPONENTS NOTE Removing steering parts requires removing General informations the enti re unit from the vehicle. ­­­ A) Removing the steering unit from the vehicle...
  • Page 54 WORKSHOP MANUAL DISMANTLING OF THE STEERING CHAPTER REVISION FROM ... PAGE TH 118 SD COMPONENTS 2018 2 of 3 Unhook the spring (18) from the drive belt tensioner. B) Part removal Extract the pin (22) and remove the lower cardan joint (23).
  • Page 55 WORKSHOP MANUAL DISMANTLING OF THE STEERING CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 3 of 3 COMPONENTS C) Part reassembly and allowance adjustments Reassemble the upper bushing (28) and cardan joint D) Steering unit reassembly on the vehicle (23) with relevant pin (22) then remove the screw (36).
  • Page 56 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE REPLACEMENT OF THE DRIVE BELT TH 118 SD 2018 1 of 1 Dismount the engine pulley and the clutch. During reassembly operations, make sure the belt (5) General informations is positioned accurately in relation to the pulleys and Remove the rear part of the wheel cover the containment guides.
  • Page 57 WORKSHOP MANUAL REPLACEMENT OF THE SMALL WHEELS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 1 FOR THE DRIVE BELT Remove the collector channel. that the left rear small wheel should be placed in the General informations rear hole of the chassis plate.
  • Page 58 WORKSHOP MANUAL REPLACEMENT OF THE BLADES CHAPTER REVISION FROM ... PAGE TH 118 SD CONTROL BELT 2018 1 of 2 Lower the cutting General informations deck completely. ­­­ Related topics Identify the fastening 4.1] Adjusting the engagement and checking screws and remove...
  • Page 59 WORKSHOP MANUAL REPLACEMENT OF THE BLADES CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 2 CONTROL BELT Loosen the guide pulley pin (7) and the screws (8-9) almost completely, without re- moving the idler pulley (10) and the pulley (11) in order to be able to extract the belt (5).
  • Page 60 WORKSHOP MANUAL REPLACEMENT OF THE SUPPORTS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 2 AND SHAFTS OF THE BLADES Remove the cutting deck. General informations NOTE This operation is not strictly necessary since, ­­­ with a lit tle practice and experience, it is possible to dismantle the deck supports without removing the cutting deck.
  • Page 61 WORKSHOP MANUAL REPLACEMENT OF THE SUPPORTS CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 2 AND SHAFTS OF THE BLADES B) Replacement of the bearings and the shafts The second bearing still in place must be removed by IMPORTANT When refitting the plates (5­12), the...
  • Page 62 WORKSHOP MANUAL REPLACEMENT OF THE ACCELERATOR AND CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 1 ADJUSTMENT OF THE CARBURETTOR On reassembling, put the accelerator lever in the «MI- Remove the dashboard. General informations NIMUM» position, connect the end of the cable (2) to the terminal (3) on the engine after having mo ved the ­­­...
  • Page 63 WORKSHOP MANUAL REPLACEMENT OF THE PIPES OF THE CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 3 HYDRAULIC SYSTEM Lift the front part of the machine. General informations: Dismantle the front left wheel. The hydraulic circuit has two different types of pipes: Remove the rear part of the wheel cover.
  • Page 64 WORKSHOP MANUAL REPLACEMENT OF THE PIPES OF THE CHAPTER REVISION FROM ... PAGE TH 118 SD HYDRAULIC SYSTEM 2018 2 of 3 5 - 7 5 - 6 The pipes differ, so on assembly take care not to in- vert their position (8) and (9), and to correctly fit the front and rear fittings into their attachments on the transmission.
  • Page 65 REPLACEMENT OF THE PIPES OF THE CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 3 of 3 HYDRAULIC SYSTEM On assembly take care to restore the correct pipe po- sitions, fixing them to the chassis at the points indi- cated on the diagram, using: –...
  • Page 66 WORKSHOP MANUAL TROUBLESHOOTING OF THE ELECTRICAL CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 3 SYSTEM PROBLEM CAUSE REMEDY General informations 1. Activation of the self-re- In the following some of the problems connected setting protection 1) ..
  • Page 67 WORKSHOP MANUAL TROUBLESHOOTING OF THE ELECTRICAL CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 3 SYSTEM PROBLEM CAUSE REMEDY The battery is not supplying sufficient current Recharge the battery Badly earthed battery, or the starter relay or engine not Check and put right 3.
  • Page 68 WORKSHOP MANUAL TROUBLESHOOTING OF THE ELECTRICAL CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 3 of 3 SYSTEM PROBLEM CAUSE REMEDY Recharge overvoltage Check the recharge circuit 9. The battery light is blinking Battery insufficiently charged at startup Recharge the battery...
  • Page 69 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CUTTING IN OF THE SAFETY DEVICES TH 118 SD 2018 1 of 1 General informations This table shows the various situations in which the sa fety devices intervene. ­­­ A) STARTING («START» position)
  • Page 70 WORKSHOP MANUAL SAFETY MICROSWITCHES OPERATION CHAPTER REVISION FROM ... PAGE TH 118 SD CHECK 2018 1 of 1 This check is done by disconnecting connector CN1 General informations and using the tester in Ohmmeter mode. 10 20 This o peration must be performed without the opera- 9 19 ­­­...
  • Page 71 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE TERMINAL BOARD SUPPLY CHECK TH 118 SD 2018 1 of 1 This check is made with the tester operating as a General informations Voltmeter (Volts DC 0 ÷ 20), with the black ferrule on...
  • Page 72 WORKSHOP MANUAL CARBURETTOR SOLENOID VALVE CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 1 OPERATION CHECK Connector CN1 must be connected to make this General informations check. ­­­ When the key is set to «ON», a click must be heard from the carburettor solenoid valve coil.
  • Page 73 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE STARTER RELAY OPERATION CHECK TH 118 SD 2018 1 of 1 General informations WARNING! Remove the cap of the spark­ 10 20 9 19 ing plug (or plugs), since the safety systems that 8 18 nor mally prevent accidental starting of the en­...
  • Page 74 WORKSHOP MANUAL ELECTROMAGNETIC CLUTCH OPERATION CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 1 CHECK General informations WARNING! This check must be made with 10 20 9 19 the engine off. ­­­ 8 18 7 17 Disconnect connector CN1 and bridge terminals 2 6 16 and 11 of cabling connector CN1 (1).
  • Page 75 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE RECHARGE CIRCUIT CHECK TH 118 SD 2018 1 of 1 The job of the voltage regulator is to supply a flow of With the voltmeter tester, measure the voltage at the General informations current to the battery at a constant voltage of about battery terminals.
  • Page 76 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE MAINTENANCE OF THE SEALED BATTERY TH 118 SD 2018 1 of 1 A) General information C) Rules for recharging the battery General informations In a sealed “dual” battery, the electrolyte for each el- La ricarica è...
  • Page 77 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE FITTING SAFETY MICROSWITCHES TH 118 SD 7.10 2018 1 of 1 General informations IMPORTANT! If the microswitches are to func­ tion correctly, it is important to follow the exact assem­ ­­­ bly positions by re ferring to the drawings that indicate the various usages of each type.
  • Page 78 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE ELECTRICAL DIAGRAMS TH 118 SD 7.11 2018 1 of 2 General informations   Engines: B&S - Stiga - Kawasaki NO - 2 Related topics NC - 3 16a 16b NC - 3 NO - 2 C BR BK c d e +Bt Mot.Avv...
  • Page 79 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE ELECTRICAL DIAGRAMS TH 118 SD 7.11 2018 2 of 2 General informations   Engines: Honda NO - 2 Related topics NC - 3 16a 16b NC - 3 BR BK NO - 2 C...
  • Page 80 WORKSHOP MANUAL GUIDE TO UNDERSTANDING THE HYDRAULIC CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 1 of 4 SYSTEM General informations: The information provided forms a basic under­ standing of the working principles of the hydraulic system when using the machine.
  • Page 81 WORKSHOP MANUAL GUIDE TO UNDERSTANDING THE HYDRAULIC CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 2 of 4 SYSTEM C) Working principles 1. In forward gear – The pump (2), is activated by the transmission belt (1), which keeps the oil under pressure;...
  • Page 82 WORKSHOP MANUAL GUIDE TO UNDERSTANDING THE HYDRAULIC CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 3 of 4 SYSTEM 3. Both by-passes open The pump (2), activated by the transmission belt (1), keeps the oil under pressure. a) In forward gear –...
  • Page 83 WORKSHOP MANUAL GUIDE TO UNDERSTANDING THE HYDRAULIC CHAPTER REVISION FROM ... PAGE TH 118 SD 2018 4 of 4 SYSTEM 4. Rear by-pass closed and the front by-pass open 5. Rear by-pass open and the front by-pass closed In forward and reverse gears, the same situations indicated in points 1 and 2 occur,...
  • Page 84 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE CHECKING THE HYDRAULIC SYSTEM TH 118 SD 2018 1 of 1 A) Engine tests C) Transmission unit and hydraulic system tests General informations: – Check that the engine reaches the maximum fore- If any transmission problems should arise (insuf­...
  • Page 85 WORKSHOP MANUAL TIGHTENING TORQUES AND ADJUSTMENTS CHAPTER REVISION FROM ... PAGE TH 118 SD SUMMARY 2018 1 of 1 A) Tightening torques General informations Below are the specified tightening torques for the fix ing ­­­ bolts on the main parts.
  • Page 86 WORKSHOP MANUAL CHAPTER REVISION FROM ... PAGE BELTS ASSEMBLY TH 118 SD 2018 1 of 1 General informations: ­­­ Related topics 6.4] Replacement of the drive belt Replacement of the blades control belt 6.6] 1 Drive belt development 2 Blades control belt development...