ELECTRICAL SYSTEM - GRAPPLE SKIDDER KEY DESCRIPTION KEY DESCRIPTION 1 - TAILLIGHT WIRING HARNESS 21 - TRANSMISSION OIL PRESSURE LIGHT 2 - BOOM WIRING LEAD 22 - ENGINE OIL [03H19] ELECTRICAL SYSTEM 9015 740A Log Skidder and Grapple Log Skidder PC1725 in SKIDDER, LOG 740A