FRAME A 2D7141 - Caterpillar

Illustration 1 g00819016
The relays are located under the switch panel on the right side of the cab. Open the access panel in order to access the relays.The relays control electrical circuits by allowing a small signal to control a larger signal.
Illustration 2 g00819577
(K1) - Main power (1) (K2) - Main power (2) (K3) - Main power (3) (K4) - Working lights (rear) (K5) - Working lights (left) (K6) - Working lights (right) (K7) - Working lights (front) (K8) - Working lights under boom (K9) - Working lights (boom) (K10) - Engine (run) (K11) - Front wiper (K12) - Seat air compressor (K13) - Hazard flasher (K14) - Boom switch (K15) - Backup alarm (K34) - Vacuum pump (K35) - Alternator indicator lamp