Wacker Neuson 28Z3, Service Manual

Page: 179 / 264

SHB 28Z3 EN – Edition 2.0 * 28z3s610.fm
6-5
Electrical system
6.8 Alternator
The alternator charges the battery and supplies direct current to electric consumers.
6.9 Starter
Fig. 4: Relays
V1
K9
K8
K6
Relay no. Protected circuit
V1 Blocking diode
K6 Preheating time lag relay
K7 Starting relay
K8 Cutoff solenoid time lag relay
K9 Pick-up contact cutoff solenoid relay
Fig. 5: Starting relay
K7
Fig. 6: Alternator
1
2
Pos.
Description
1
Connection B (battery)
2
Connection P starting relay
Connection IG indicator light (12 V)
Port L indicator light (during service 12 V, otherwise earth)
Fig. 7: Starter
1
2
Pos.
Description
1
Connection S starting relay
2
Connection B battery