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Stiga PARK 120 2016, Руководство по ремонту

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Edition 

2016

Workshop Manual 

PARK 120 - PARK 220

Chapter

4 Hydraulic system

Page

29

4.1 

Safety

Caution!!!

A high level of cleanliness is mandatory when carrying out all operations on the 

hydraulic system. Foreign objects and contaminants would jeopardize system 

operation and reliability. Always protect and plug the ends of pipes, lines and 

connectors when replacing components.

4.2 

Description

The hydrostatic transmission (HST) consists of a hydraulic pump and a hydraulic motor.

The hydraulic pump is mechanic connected to the drive belt.

The power from the pump is transmitted to the motor by an oil flow.

Since both the oil flow and the flow direction is controlled by the drive pedal, the machine 

can move both forwards and backwards with a stepless gear ratio.

4.3 

Repair

Since trouble with the HST is very rare.

There for it is no need for any repair instructions in this book.

Oil leakage can occur for various reasons.

Therefore it is described on next page how oil can be filled.

Should major repair to the HST be needed, please refer to the service provided of the 

transmission manufacturer.

4.4 

HST oil

4.4.1  General

It is recommended that oil filling should only be performed if one or both of the following 

conditions are met:

•  There is a visible oil leakage.

•  Traction problems.

U.M.

PARK 120

PARK 220

Oil

20W-50

Volume

ml

2055

2155

Содержание PARK 120 2016

Страница 1: ...Workshop manual PARK 120 PARK 220 2016 2020...

Страница 2: ...l instructions 3 2 Frame and Covers 15 3 Steering wheel 23 4 Hydraulic system 28 5 Belts 31 6 Control cables 43 7 Electrical system 51 8 Mower Decks 66 by STIGA No use of the illustrations or duplicat...

Страница 3: ...4 2 Battery 9 1 4 3 Final inspections 10 1 5 Maintenance 11 1 5 1 General safety checks 12 1 5 2 Electrical safety check 12 1 6 Technical data 14 1 6 1 Machine dimensions 14 1 6 2 General tightening...

Страница 4: ...r par 2 1 To facilitate consultation of the manual each chapter is dedicated to a specific component There is a table of contents at the beginning of each chapter The cover on the other hand holds a g...

Страница 5: ...repair operations must be carried out by expert maintenance mechanics who are familiar with all the safety and accident prevention regulations and have read the procedures described in this manual B...

Страница 6: ...f in compliance with the relative legislation in force make sure no one can inadvertently carry out actions which could compromise the safety of the mechanic working on the machine D Tools required Al...

Страница 7: ...ts must be kept and made available to the Manufacture together with any replaced parts in the event of complaints from the Customer 1 2 4 Reporting faults Please report any faults which may recur with...

Страница 8: ...an external manufacturer and is built to precise technical specifications which distinguish it from similar products made by the same manufacturer The serial number indicated on the label 1 makes it p...

Страница 9: ...egulated battery This type of battery requires minimum maintenance It has no caps or electrolyte level controls Warning Never wear metal rings bracelets necklaces or other similar jewellery when worki...

Страница 10: ...ttery charger make sure it is a genuine STIGA battery charger The battery will be damaged if other battery chargers are used 1 4 3 Final inspections Interventions before start up Before starting the m...

Страница 11: ...adjustment 5 50 12 Steering adjustment Lubrication of the bearings in the articulation 5 50 12 2 3 Lubrication of the shaft on the front wheels and quick connections 50 12 2 3 Engine air filter clean...

Страница 12: ...seated Parking brake disengaged Try to start the engine The motor does not start Driver seated Parking brake engaged Try to start the engine The engine starts Engine on cutting device disengaged park...

Страница 13: ...ies Check that none of the cables rub against the frame as this could lead to damaged cables and short circuits Check the tightness of the battery terminals 7 Check controls Check that all the control...

Страница 14: ...D mm 741 741 E mm 770 770 E1 mm 991 1023 1 6 2 General tightening torques Tightening torques for screws and nuts unless otherwise specified Thread Torque M5 6 Nm M6 10 Nm M8 24 Nm M10 47 Nm 1 7 User g...

Страница 15: ...the engine cover 16 2 1 2 Fitting new screw mounts to the engine cover 16 2 1 3 Removing the front covers 17 2 1 4 Removing the belt cover at the centre of the machine 20 2 2 Replacing the link arm 21...

Страница 16: ...he engine cover New screw mounts can be mounted on the rear frame if the previous screw mounts are faulty B A C D Remove the faulty screw mount as follows 1 Use a 8 5 mm drill Drill down to the thread...

Страница 17: ...the steering wheel A B 1 Slacken the wing nut 2 Lift the steering wheel to uncover the two pins 3 Tighten the wing nut 4 Remove the two pins A from the sleeve B 5 Remove the steering wheel Removing t...

Страница 18: ...e pedal screw C Also remove the plastic knob D by pulling it straight up F E 3 Remove the lift pedal screw E Also remove the plastic knob F by pulling it straight up G I H 4 Remove the ignition switch...

Страница 19: ...vers remain attached to the casing 7 4 3 Removal of the cover under the seat A 1 Remove the cover A NOTE operate with great care to avoid breaking the tabs on the cover The locking tabs are at the top...

Страница 20: ...4 Removing the belt cover at the centre of the machine B C A D F 2x E 2x 1 Remove the engine cover for details 2 1 1 2 Remove the spring A to tension arm from the frame 3 Unscrew the bolt B 13 mm wren...

Страница 21: ...ear side of the frame and on the front frame near the arm to ensure it does not roll over Keep it lifted using a jack or wooden planks B A 1 Unscrew the bolt A 17 mm wrench 2 Unscrew the bolt B 17 mm...

Страница 22: ...urs of operation as well as after every wash View from the top 2 3 3 4 4 1 Object Action Points Centre point Lubricate with oil on the centre point 1 Steering pulleys Lubricate the pulley hubs with an...

Страница 23: ...ly 25 3 1 3 Adjustment 26 3 1 4 Replacing the bushes on the steering shaft 27 General description The machine is fitted with a mechanical steering system Steering power is transmitted by a cable chain...

Страница 24: ...the steering wheel 3 1 1 Disassembly Before commencing disassembly operations make a note of the route taken by the cable chain system so that the new components can be installed in the exact same wa...

Страница 25: ...ear wheels Check that the wheels are straight and that the mid dle marked link is positioned at the centre of the chain gear wheel if this is not the case take to the straight position 4 Install the t...

Страница 26: ...the front pulley 3 Apply a force of 5 7 kg The distance E between the cables should be approximately 45 mm 4 Test drive the machine with the wheels straight and check that the steering wheel is in th...

Страница 27: ...he steering wheel remove the pin A 2 Remove the steering chain and cables For further details see 3 1 1 3 Remove the front covers For the relative description see 2 1 3 4 Remove the pin B 5 Take hold...

Страница 28: ...air 29 4 4 HST oil 29 4 4 1 General 29 4 4 2 Oil change 30 4 5 Transmission removal 30 4 6 Changing engine oil 30 4 6 1 Checking the engine oil level 30 This chapter contains a brief description of th...

Страница 29: ...smitted to the motor by an oil flow Since both the oil flow and the flow direction is controlled by the drive pedal the machine can move both forwards and backwards with a stepless gear ratio 4 3 Repa...

Страница 30: ...g a jack or strong wooden planks Warning Check that the machine is supported effectively and safely B 4x A A 5 Remove the rear wheels A 6 Unscrew the 4 screws 4 which hold the transmission in place To...

Страница 31: ...iption 34 5 2 2 Drive belts D 35 5 2 3 Operating equipment C clutch belt 36 5 2 4 Operating equipment belt B 40 All the mechanical power provided by the engine is transmitted to the various power user...

Страница 32: ...gap between the belt and the bottom of the groove The belt rests its sloping sides against the walls of the pulley There must be a gap between the belt and the bottom of the groove Same requirements...

Страница 33: ...reinforced rubber Bending in two directions Designed to bend around the pulley in one direction only Most belts installed on machines have tensioning rollers which act on the outer side of the belt T...

Страница 34: ...front pulley 3 The belt is kept tensioned by the tensioning pulley 2 installed on a spring loaded tensioning arm Belt B Belt B is dedicated to transmission from the articulated point to the double fro...

Страница 35: ...belt D off the pulley 9 connected to the drive shaft 4 Remove the belt D from the pulley 7 and extract it upwards over the top of the fan Assembly 1 Install the belt D from the front side onto the pul...

Страница 36: ...the belts are positioned see 5 2 Disassembly 14 C 13 6 12 2x 1 Remove the engine casing 2 1 1 2 Remove the belt D from the transmission 5 2 2 3 Remove the upper belt casing 12 two screws 4 Remove the...

Страница 37: ...olds the cable to the clutch 7 Disconnect the connector 15 from the clutch cable 17 16 8 Remove the clutch stopper 16 by unscrewing the two screws 17 C 10 5 9 Remove the belt from the double pulley 5...

Страница 38: ...ge 38 Assembly 14 C 13 6 12 2x 1 Insert the belt C from the front side in the groove on the double pulley and then fitting it on the drive shaft pulley 2 Replace the upper belt casing 12 two screws 17...

Страница 39: ...14 13 C 6 Install and tighten the central top bolt 14 and the tensioning arm on the belt C Please note that the tensioning pulley must be positioned on the inside of the belt 7 Install the spring 13...

Страница 40: ...ly 18 14 B 12 5 C 19 2x 2x 13 1 Remove the engine casing 2 1 1 2 Remove the spring 13 on the tensioning arm which is dedicated to the equipment clutch belt C 3 Unscrew the central top bolt 14 and move...

Страница 41: ...e centre upwards and then slip off the belt B 9 Slip the belt off the front double pulley 3 Assembly 5 3 20 1 Insert the belt from the front and start by fitting it in the top groove 3 of the double p...

Страница 42: ...ace the upper belt casing 19 two screws 7 Install and tighten the central top bolt 14 and the tensioning arm on the belt C Please note that the tensioning pulley must be positioned on the inside of th...

Страница 43: ...tment 47 6 4 Brake cable 47 6 4 1 Disassembly 47 6 4 2 Assembly 48 6 4 3 Adjustment 48 6 5 Accelerator cable 49 6 5 1 Disassembly 49 6 5 2 Assembly 49 6 5 3 Adjustment 50 General description All mecha...

Страница 44: ...d or elbow unions The cables can only transmit traction force The return force is generated by the springs For a higher transmission of pushing and traction forces components such as levers brackets e...

Страница 45: ...2 Using a screwdriver or similar tool remove the ball pin B from its seat C 3 To reassemble the various parts repeat the operations in reverse order The ball pin B must be inserted into its seat C usi...

Страница 46: ...f how the cables and cables ties are connected to ensure that the new components are rein stalled in exactly the same way 5 Remove the elbow connectors from the cable Caution The bodies of the elbow c...

Страница 47: ...ecessary adjust the rear elbow connector located on the pump 6 4 Brake cable Danger NEVER use the machine if the brakes are faulty Caution The parking brake must not be used as an operating brake and...

Страница 48: ...to reassemble 3 Install new cable ties 4 Adjusting the cable 6 4 3 6 4 3 Adjustment Danger NEVER use a machine with faulty brakes Caution Check that the cables are slack when the parking brake is not...

Страница 49: ...the seat B 4 Disassemble the accelerator control B 5 Pull the accelerator control back and the cable until it comes out from under the plastic cover 6 Detach the cable unit from the accelerator contro...

Страница 50: ...ent 120 220 A A 1 Adjust the cable sheaths on the terminals until the accelerator lever reaches the end of stroke position 2 Tighten the clamps A of the sheaths 3 Check the following Operation of the...

Страница 51: ...ng switch controls 62 7 4 5 Connections 63 7 4 6 Removing the battery 63 7 5 Control panels 64 7 6 Wiring diagram 65 General description The electrical system has two primary functions To maintain the...

Страница 52: ...circuit when a prohibited action is to be carried out The wiring diagram must be read for full understanding of the electrical system of a special machine model All power apart from the starting circ...

Страница 53: ...t be charged All cables shall be OK All connections shall be OK The conditions for carrying out a procedure must be met For example if the engine is to be started the operator must be sitting on the s...

Страница 54: ...ake switch NOT Change the ignition switch YES Is there voltage at the start relay NOT Change the parking brake switch YES Is there ground at the start relay YES Change the start relay NOT Change the s...

Страница 55: ...ace ignition switch Change the battery Is the engine electrical connections OK NOT Repair the fault YES Replace the charge regulator The engine does not stop Does the engine stop when the work equipme...

Страница 56: ...ge the seat switch Black You can not start the blades Is it possible to start the blades if you short out the connector cables to the lifting switch YES Change the lifting switch NOT Is it possible to...

Страница 57: ...ic cables 7 3 1 Description In this section the workshop manual will display the cables for both machines to increase the understanding of the electrical system and also explain what the various conne...

Страница 58: ...e PTO switch Brake pedal Lift pedal Start relay PTO relay Safety relay 1 Charging 2 Ignition 3 Fuel valve Engine Ground on engine MAG clutch Start relay Battery charging 3 2 1 8 6 5 4 7 A1 B M S G 1 2...

Страница 59: ...G 1 2 PTO relay Safety relay Start relay MAG clutch Start relay Battery charging 1 2 3 1 Charging 2 Ignition 3 Fuel valve Engine 3 2 1 8 Ground on engine Cutt heigt switch PTO switch 6 5 4 7 3 2 1 8 6...

Страница 60: ...ets necklaces or other similar metal items when working with the machine electrical system It can lead to short circuits or fires 7 4 1 Relay positions The relays are located under the engine cover in...

Страница 61: ...of the fuse that may be installed If a higher current fuse is installed there is a risk of fire damage to the machine The machine is equipped with one fuse The fuse is located under the machine engine...

Страница 62: ...igure The switches are pressed into place in their respective rectangular holes in the control panel To change a switch follow the procedure below 1 Remove the relevant protection to make the switch a...

Страница 63: ...nnectors may require special tools for removal Warning No metal from the cable may be visible outside the screw connection Too long stripped cables can cause short circuits or fires 7 4 6 Removing the...

Страница 64: ...s A Torx T30 3 Remove the battery To reassemble the various parts repeat the operations in reverse order 7 5 Control panels A1 A2 Switch A1 The switch can be used to smoothly set the cutting height of...

Страница 65: ...Edition 2016 Workshop Manual PARK 120 PARK 220 Chapter 7 Electrical system Page 65 7 6 Wiring diagram...

Страница 66: ...permanent lubricated ball bearings All decks are provided with a quick coupling to simplify the lifting up procedure for cleaning and inspection and The decks are also provided with an electrical or...

Страница 67: ...ility test a lawn mower can be subject to An iron pipe is placed right into the blades during operation The blade can be deformed but it may not under any circumstances come off or split This test ver...

Страница 68: ...lades and remove the blades 3 After removing the blades check whether the shafts are damaged This is best done by rotating the shafts to see if they are out of true 8 2 2 Assembly C B B C 45 Nm 1 Fit...

Страница 69: ...A use a 17 mm spanner to hold the blades 90 5 Reinstall the blades at 90 to one another NOTE The blades can be turned 1 3 of a turn in their mountings Select positions so that the blades are offset 90...

Страница 70: ...g between gear wheels and blade shaft See Synchronising blades 8 5 2 Check the two blade shaft bearings as follows Grab the pulley and force it in the radial direction No radial play shall be felt Gra...

Страница 71: ...per the table below in the middle of the belt The belt shall move 10mm or 12mm in according to the table If not loosen the bearing housing and repeat step 1 2 above until the movement is 4 OK Timing...

Страница 72: ...e figure A The blades A can be turned 1 3 of a turn in their mountings Select positions so that the blades are offset 90 from each other If the blades are not synchronised one or more of the following...

Страница 73: ...ket on the machine 2 Remove the shaft stop washers A 3 Extract the pins B and remove the drive unit To reassemble the various parts repeat the operations in reverse order 8 7 Replacement of the spring...

Страница 74: ...STIGA S p A Via del Lavoro 6 31033 Castelfranco Veneto TV Italy www stiga com...

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