SK1050 Operator’s Manual Controls - 29 Graphic Display Item Description Notes 16. Service reminders button c00ic112w.eps Press to go to the service reminders screen. 17. Engine RPM setpoint indicator c00ic113w.eps Indicates the current throttle setpoint. IMPORTANT: • When in manual throttle mode, this is the RPM the engine will try to maintain. • When in auto-throttle mode, this indicates the full throttle setpoint. 18. Tier 4 menu button Tier 4 c00ic114w.eps Press to go to the exhaust cleaning (REGEN) control menu. 19. Electrical system voltage c00ic008w.eps Displays system voltage. Should show 12-14V with engine running.