Cub Cadet 4 x 4 Volunteer - Manual (Page 282)

Chapter 9 - Electrical
278
5. Additional Relays for Glow Plugs
(Caterpillar)
• There are two relays that operate the glow plugs
on the Caterpillar diesel powered vehicles: a
glow plug timer relay, and a glow plug relay.
• The glow plug timer relay is mounted just
inboard of the driver’s side hood and dash sup-
port bracket.
• The part number for the glow plug timer relay is
not listed in the Illustrated Parts List, but it may
be ordered as Cub Cadet part number
725-04218. See Figure 9.5.
• The glow plug timer relay governs the operation
of the glow plug relay that is taped into the
engine wiring harness. The glow plug relay con-
trols power to the bus bar that energizes the
glow plugs. See Figure 9.6.
6. Addition Relay for Light Bar
• Location: Open the hood to reach the fuse and
relay center. It is mounted on the firewall, imme-
diately forward of the steering column.
• If equipped with a light bar, the relay will be
mounted beneath position two of the relay cen-
ter.
Wire Function
White / Black trace Fused 5A constant hot
Orange Key-on hot
Green Constant ground
Purple Trigger wire to glow
plug relay.
Timed output.
Figure 9.5
Glow plug timer relay Fuse and relay center
Hood and dash
support bracket
Wire Function
Purple Trigger wire from glow
plug timer relay. Pow-
ers relay windings.
Green Constant ground for
relay windings.
Red Constant hot
(Caution, unfused)
Yellow Output to power glow
plug bus bar
Figure 9.6
Glow plug relay