Relays - Toro ProLine H800 Service Manual

Relays

g294973
1. Start relay (5 terminals)
2. Glow relay (4 terminals)
ProLine H800
19241SL Rev A
3. Forward fan relay (4 terminals)
4. Reverse fan relay (4 terminals)
The machines use a number of electrical relays. Some of the relays have four (4)
terminals and some have five (5) terminals. The number of terminals the relay
has determines how the relay should be tested. A tag near the wire harness
relay connector can be used to identify each relay.
The start relay is attached to the battery support plate under the operator seat
(Figure 134). When energized, the start relay allow the electrical current to the
engine starter.
The glow relay is attached to the battery support plate under the operator seat
(Figure 134). When energized, the glow relay allow the electrical current to
the engine glow plugs.
The two (2) forward fan relays are attached to the battery support plate under the
operator seat (Figure 134). When energized, the forward fan relays allow the
electrical current to the radiator fan.
Figure 134
Page 6–39 Electrical System: Testing the Electrical Components
5. Key relay (4 terminals)