9 MAINTENANCE
63
9.20 ELECTRICAL SYSTEM
____________________________________________________________
General precautions to decrease electrical problems are -
•
Make sure that all the connections are clean and correctly fastened.
•
Check the interlock system, fuses and circuit breakers at normal intervals. If the interlock system does not
operate correctly and you can not correct the problem, contact an authorized Jacobsen Dealer.
•
Keep the wiring harness away from hot surfaces and moving parts.
•
Make sure the seat switch wiring harness is connected to the mower wiring harness.
•
Check the battery and the alternator.
•
Do not wash or pressure spray around electrical connections and components.
The electrical system is monitored and controlled by the controller found behind the operator compartment. The
controller has 28 light emitting diodes (LED) that can help to correct electrical system problems.
A circuit breaker, six fuses and three relays found on or near the controller are used to protect the mower circuits.
CAUTION
Always turn the ignition switch to the off position and remove the negative (BLACK) battery cable before you inspect
or service the electrical system.
NOTICE
For factory help with controller problems, give the hardware revision and software version found on the controller.
The replacement controllers with higher revision levels will be compatible.
!
2-1 RAISE SOL
2-2 MOW SOL
2-3 BACKLAP SP;
2-4 LOWER SOL
2-5 GLOW RELAY
2-6 START RELAY
2-10 FUEL SOL HOLD
3-1 FUEL SOL PULL
2-9 BRAKE SOL
2-12 SPARE
3-9 EDC SOL
3-10 EDC SOL
2-11 SPARE
3-2 ENG TEMP
3-7 TRACTION
1-1 SEAT SW
1-2 SPARE
1-3 BACKLAP SW
1-12 REEL LVL SW
1-4 HYD OIL LVL SW
1-9 HYD FILTER SW
1-10 ENG OIL SW
2-7 ALTERNATOR
1-5 PRGM SEL 1
1-6 PRGM SEL 2
1-11 PRGM SEL 3
COMM STATUS
POWER STATUS
FUSES
20 AMPS MAX
POWER INPUT 1
POWER INPUT 2
OUTPUTS
INPUTS
J1
J2
J3
20
20
F6
F7
F1
CB1
F2
F3
F4
J
A
COBSEN 4270813
MTI500819
REV X2
D
A
TE YYWW
SOFTW
A
RE
9585$
RoHS
Compliant
CR1
CR3
CR2
5
5
25
10
CB1 - 50 Amp Circuit Breaker
CR1 - Main Relay
CR2 - Glow Plug Relay
CR3 - Starter Relay
F1 - 10 Amp Fuse - ECU +12V
F2 - 25 Amp Fuse - Main Relay
F3 - 5 Amp Fuse - ECU Start
F4 - 5 Amp Fuse - EGR
F6 - 20 Amp Fuse - Ignition
F7 - 20 Amp Fuse - Lights
Software
Version
Hardware
Revision
Summary of Contents for LF550-H-T4F
Page 13: ...SPECIFICATIONS 4 12 K J C G E L A B H F D ...
Page 86: ...13 NOTES 85 13Notes ...
Page 87: ...NOTES 13 86 ...
