jcb 1THT Service Manual Download | Manualshive

Page: 4 / 15

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15 - Engine

54 - Flywheel

15 - 84

9813/5200-2

15 - 84

54 - Flywheel

Contents

Page No.

15-54-00 General

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15-85

15-54-12 Drive Plate

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15-86

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Summary of Contents for 1THT

Page 1: ...e without first studying the Operator s Manual You must understand and follow the instructions in the Operator s Manual If you do not understand anything ask your employer or JCB dealer to explain it Do not operate the machine without an Operator s Manual or if there is anything on the machine you do not understand Treat the Operator s Manual as part of the machine Keep it clean and in good condit...

Page 2: ...diment cup B Outer element C Inner element D Body E Dust ejector F Clamp 5 Loosen the clamps holding the sediment cup to the air cleaner body and pull cup clear Refer to Figure 94 6 Pull out the outer element from the body 6 1 Clean the outer element by tapping gently on a firm object or by blowing gently with compressed air from inside the element Refer to Figure 94 6 2 Replace the outer element ...

Page 3: ...3 Open the air cleaner end cap clips x2 4 Remove the air filter assembly end cap Figure 95 A B A A End cap clips x2 B Air filter assembly end cap 5 Remove the outer air filter element Figure 96 C C Outer air filter element 6 Remove the inner air filter element Figure 97 D D Inner air filter element Install 1 The installation procedure is the opposite of the removal procedure ...

Page 4: ...15 Engine 54 Flywheel 15 84 9813 5200 2 15 84 54 Flywheel Contents Page No 15 54 00 General 15 85 15 54 12 Drive Plate 15 86 ...

Page 5: ... when torque is applied by the energy source and it releases stored energy when the energy source is not applying torque to it In a reciprocating engine a flywheel is used to maintain constant angular velocity of the crankshaft The flywheel which is mounted on the crankshaft stores energy when torque is exerted on it by a firing piston and it releases energy to its mechanical loads when no piston ...

Page 6: ... PIL 27 31 00 4 Remove the bolts 1 x8 5 Remove the adaptor plate Figure 99 B A A Adaptor plate B Bolts 1 x8 6 Remove the bolts 2 x6 7 Remove the drive plate Figure 100 D C C Bolts 2 x6 D Drive plate Install 1 The installation procedure is the opposite of the removal procedure Additionally do the following step 2 Tighten the bolts to the correct torque value Table 29 Torque Values Item Description ...

Page 7: ...tacts for the starter motor which begins to turn Once the engine starts the key operated ignition switch is opened a spring in the solenoid assembly pulls the pinion gear away from the ring gear and the starter motor stops The starter motor pinion is clutched to the drive shaft through an overrunning clutch which permits the pinion to transmit drive in only one direction Drive is then transmitted ...

Page 8: ... sure the park brake is engaged Disconnect the battery to prevent the engine being started Block all four wheels Notice Before carrying out arc welding on the machine disconnect the battery and alternator to protect the circuits and components The battery must still be disconnected even if a battery isolator is installed Notice Do not isolate the machine electrics when the engine is running this m...

Page 9: ...3 Component Identification Figure 107 3 2 1 1 Solenoid 2 Brush gear 3 Tie bolts Figure 108 B A D C A Solenoid positive terminal From battery B Solenoid terminal From ignition switch C Negative terminal To ground D Solenoid positive after contact terminal To motor ...

Page 10: ...timeter across the battery terminals Figure 109 1 1 Reading in start position approximately Voltage 10 V Voltage 20 V 1 2 Minimum permissible reading in start position Voltage 9 5 V Voltage 18 V 1 3 A low reading probably indicates a fault in the starter motor 2 Connect the multimeter between the starter main terminal and the commutator end bracket In the start position the reading should not be b...

Page 11: ...ter earth connection The reading in the start position should be practically zero maximum permissible reading Voltage 0 25 V Figure 113 B Starter earth connection 5 1 If the reading is above the maximum permissible voltage a high resistance in the earth lead or connections is indicated 6 Connect the voltmeter between battery positive and the starter main terminal With the starter switch off the vo...

Page 12: ...le ties x2 5 Put a label on the electrical connectors to help installation 6 Remove the battery positive cable cover Figure 117 Y Y Cable cover 7 Disconnect the battery positive cable and the starter solenoid connector Figure 118 AA Z Z Battery positive cable AA Starter solenoid connector 8 Remove the lower retaining bolt Figure 119 A A Lower retaining bolt 9 Remove the upper retaining bolt Figure...

Page 13: ...move the starter motor Figure 122 D D Starter motor Install 1 The installation procedure is the opposite of the removal procedure Additionally do the following step 2 Tighten the nuts to the correct torque value Table 31 Torque Values Item Description Nm A Lower retaining bolt 44 B Upper retaining bolt 44 ...

Page 14: ...or 06 Brush Gear 15 108 9813 5200 2 15 108 06 Brush Gear Remove and Install The starter motor brushes are an integral part of the starter motor This part is a non serviceable part if it fails replace the complete starter motor ...

Page 15: ...Our support email ebooklibonline outlook com ...

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