Electrical System - Jacobsen Super LF 1880 Parts & Maintenance Manual

4 MAINTENANCE

4.12 ELECTRICAL SYSTEM _____________________________________________________

!
CAUTION
Always turn the ignition switch off and remove the
negative battery cable (Black) before inspecting or
working on the electrical system.
General precautions that can be taken to reduce electrical
problems are listed below.
1. Make certain all terminals and connections are clean
and properly secured.
2. Check the Interlock System and fuses regularly.
If the Interlock System does not function properly and
the problem cannot be corrected, contact an authorized
Jacobsen Dealer.
3. Keep the wire harness and all individual wires away
from moving parts to prevent damage.
4. Make sure the seat switch harness is connected to the
main wire harness.
5. Check the battery and battery charging circuit.
6. Do not wash or pressure spray around electrical
connections and components.
20
Fuses
F1 5 Amp (Gauges)
F2 20 Amp (Lights)
F3 10 Amp (Lift / Lower)
F4 Not Used
F5 30 Amp (Glow Plugs)
F6 10 Amp (Ignition Switch)
F7 20 Amp (Ignition Circuit)
F8 Not Used
Diodes
D1 Interlock Diode Block
D2 Lift / Lower Diode Block
Relays
8 9 10 11 12 13 14
2 4 5 6 7
Two Wheel Drive
Fuses
F1 5 Amp (Gauges)
F2 20 Amp (Lights)
F3 10 Amp (Lift / Lower)
F4 5 Amp (4WD)
F5 30 Amp (Glow Plugs)
F6 10 Amp (Ignition Switch)
F7 20 Amp (Ignition Circuit)
F8 Not Used
Diodes
D1 Interlock Diode Block
D2 Lift / Lower Diode Block
Relays
8 9 10 11 12 13 14
2 3 4 5 6 7
Four Wheel Drive
15
F1 F2 F3 F4
F5 F6 F7 F8
1
D1 D2
1 Lift Delay Relay (U6)
2 Start Relay (K20)
3 Not Used
4 Ignition Relay (K17)
5 Lift Relay (K14)
6 Lift Hold Relay (K13)
7 Horn Relay (K22)
8 Interlock Relay (K8)
9 Reel FWD Rotation Relay (K7)
10 Reel REV Rotation Relay (K6)
11 Neutral Relay (K3)
12 Brake Relay (K2)
13 Glow Plug Relay (K1)
14 Float Relay (K21)
15 Seat Time Delay Relay (K4)
15
F1 F2 F3 F4
F5 F6 F7 F8
1
D1 D2
1 Lift Delay Relay (U6)
2 Start Relay (K20)
3 4WD Relay (K18)
4 Ignition Relay (K17)
5 Lift Relay (K14)
6 Lift Hold Relay (K13)
7 Horn Relay (K22)
8 Interlock Relay (K8)
9 Reel FWD Rotation Relay (K7)
10 Reel REV Rotation Relay (K6)
11 Neutral Relay (K3)
12 Brake Relay (K2)
13 Glow Plug Relay (K1)
14 Float Relay (K21)
15 Seat Time Delay Relay (K4)
Figure 4C