Textron Jacobsen LF-1880 - SECTION 10 ELECTRICAL SYSTEM

SECTION 10
ELECTRICAL SYSTEM
10A Repair, Service Tools, and Materials .............................................................................................................. 1
Materials Required ................................................................................................................................... 1
10B Failure Analysis .............................................................................................................................................. 3
General .................................................................................................................................................... 3
10C General Instructions........................................................................................................................................ 7
General .................................................................................................................................................... 7
Wire Continuity Test ................................................................................................................................. 8
Resistance Test........................................................................................................................................ 8
10D Battery ............................................................................................................................................................ 9
General .................................................................................................................................................... 9
Charging a Maintenance Free Battery ..................................................................................................... 9
Maintenance/Cleaning ............................................................................................................................. 9
Testing.................................................................................................................................................... 10
10E Charging System ...........................................................................................................................................11
General ...................................................................................................................................................11
Output Voltage Test.................................................................................................................................11
Voltage Test............................................................................................................................................ 12
Regulator Test ........................................................................................................................................ 12
10F Starter ........................................................................................................................................................... 13
General .................................................................................................................................................. 13
Field Test................................................................................................................................................ 13
Starter Motor .......................................................................................................................................... 13
10G Switches ....................................................................................................................................................... 15
General .................................................................................................................................................. 15
Seat Switch Test..................................................................................................................................... 15
Ignition Switch Test ................................................................................................................................ 15
Water Temperature Switch Test ............................................................................................................. 19
Parking Brake, Neutral Start, Reel Position, And 4WD Drop Out Proximity Switches Test.................... 19
Continuity Test........................................................................................................................................ 19
Sensitivity Test ....................................................................................................................................... 20
Reel Switch Test..................................................................................................................................... 20
Backlap Switch Test ............................................................................................................................... 21
4 Wheel Drive Switch Test ..................................................................................................................... 22
Joystick Test........................................................................................................................................... 22
Light Switch Test .................................................................................................................................... 23
Horn Switch............................................................................................................................................ 24
Float Switch............................................................................................................................................ 24
10H Senders ........................................................................................................................................................ 27
General .................................................................................................................................................. 27
Coolant Temperature Sender Test ......................................................................................................... 27
Engine Oil Pressure Sender Test ........................................................................................................... 27
10I Relays and Solenoids................................................................................................................................... 29
Relays .................................................................................................................................................... 29
Relay Test .............................................................................................................................................. 29
Solenoids ............................................................................................................................................... 30
Fuel Solenoid Test.................................................................................................................................. 30
Reel Valve Solenoids ............................................................................................................................. 31
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