Husqvarna FC 450 2018 Repair Manual page 6

TABLE OF CONTENTS
15.8
15.9
15.10
16 BRAKE SYSTEM ........................................... 143
16.1
16.2
16.3
16.4
16.5
16.6
16. 7
16.8
16.9
16.10
16.11
16.12
16.13
16.14
17 ENGINE ......................................................... 158
17.1
17.2
17 .3
17 .3.1
17 .3.2
17 .3.3
17 .3.4
17.3.5
17.3.6
17 .3. 7
17 .3.8
17 .3.9
17.3.10
17 .3.11
17.3.12
17.3.13
17.3.14
17.3.15
17.3.16
17 .3.17
17.3.18
17 .3.19
4
Checking the open-circuit current.. .. 140
Checking the capacitor ..................... 141
Checking the starter relay ................. 142
Checking the front brake linings ....... 143
Changing the front brake linings ....... 143
Checking the free travel of the
hand brake lever . . .. . . .. . .. . .. . .. . .. . .. . .. . .. . . 145
Adjusting the basic position of the
hand brake lever . . .. . . .. . .. . .. . .. . .. . .. . .. . .. . . 145
Checking the front brake fluid
level ................................................... 146
Adding front brake fluid .................... 146
Changing the front brake fluid .......... 148
Checking the brake linings of the
rear brake.......................................... 1 50
Changing the rear brake linings ........ 150
Checking the free travel of foot
brake lever . . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . .. . .. . . 152
Adjusting the basic position of the
foot brake lever................................. 152
Checking the rear brake fluid level ... 153
Adding rear brake fluid ..................... 154
Changing the rear brake fluid ........... 155
Removing the engine ........................ 158
Installing the engine .......................... 164
Engine disassembly .......................... 172
Preparations ................................. 172
Draining the engine oil. ................. 172
Removing the clutch push rod ..... 173
Removing the oil filter ................... 173
Removing the starter motor ......... 174
Removing the spark plug ............. 174
Removing the valve cover ............ 17 4
Removing the alternator cover ..... 175
Positioning the engine at
ignition top dead center ............... 175
Removing the timing chain
tensioner....................................... 176
Removing the camshaft ............... 176
Removing the cylinder head ......... 177
Removing the piston .................... 177
Removing the rotor ....................... 178
Removing the timing chain ........... 178
Removing suction pump .............. 179
Removing the gear position
sensor ........................................... 179
Removing the water pump
cover ............................................. 180
Removing the clutch cover ........... 180
17.3.20 Removing the clutch discs ........... 180
17.3.21 Removing the clutch basket ......... 182
17.3.22 Removing the torque limiter ......... 182
17.3.23 Removing the starter idler gear .... 183
17.3.24 Removing the force pump ............ 183
17.3.25 Removing the shift shaft ............... 184
17.3.26 Removing the shift drum
locating unit.. ................................ 184
17.3.27 Removing the locking lever .......... 184
17.3.28 primary gear wheel, removing ...... 185
17.3.29 Removing the freewheel gear ....... 185
17.3.30 Removing the left engine case
section.......................................... 185
17.3.31 Removing the shift rails ................ 186
17.3.32 Removing the shift drum .............. 187
17.3.33 Removing the shift forks .............. 187
17.3.34 Removing the transmission
shafts ............................................ 187
17.3.35 Removing the crankshaft ............. 188
17.4 Working on individual parts .............. 188
17.4.1 Working on the right section of
the engine case ............................ 188
17.4.2
Working on the left section of
the engine case ............................ 190
17.4.3
oil pressure control valve,
removing ....................................... 191
17.4.4 spring length of the oil pressure
control valve, checking ................. 192
17.4.5 oil pressure control valve,
installing ....................................... 192
17.4.6 crankshaft seal ring in the
clutch cover, changing ................. 192
17.4. 7 Removing the water pump ........... 192
17.4.8 Installing the water pump ............. 193
17.4.9 Removing the timing chain
sprocket .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . .. . .. 194
17.4.10
Installing the timing chain
sprocket .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . .. . .. 194
17.4.11 Removing the crankshaft
bearing inner race ......................... 195
17.4.12 Installing the crankshaft bearing
inner race ...................................... 195
17.4.13 Changing the connecting rod,
conrod bearing, and crank pin ..... 196
17.4.14 Checking crankshaft run-out at
bearing pin ................................... 198
17.4.15 Measuring the crankshaft end
play ............................................... 198
17.4.16 Cylinder - Nikasil
®
17.4.17 Checking/measuring the
cylinder ......................................... 199
17.4.18 Checking/measuring the piston ... 200
- coating ......... 199