April 201920 GTH-5519 Part No. 57.0009.0619GTFourth Edition - Third PrintingControls17 Hazard warning lights switch (if equipped)Push the switch to turn the hazard warninglights on. Release the switch to turn the hazardwarning lights off.18 Transmission control leverMove the transmission control lever away fromyou for forward gear. Move the lever toward youfor reverse gear. Move the lever to the centerposition for neutral.19 Lock/unlock enabling switch (if equipped)Push and hold the switch to enable the couplingor the release of the attachment, managed bythe control lever.20 A/C switch (if equipped)Push the switch to turn the A/C on. Release theswitch to turn the A/C off.21 Cab heater fan switch (if equipped)Push the switch to turn the cab heater fan on:first position for low speed and second positionfor high speed. Release the switch to turn thecab heater fan off.22 Seat adjustment23 Continuous oil flow potentiometerTurn the potentiometer clockwise to increase theflow rate in the circuit feeding the attachments.24 Windshield washer reservoir (if equipped)25 Load charts holder26 Diagnostic button27 Steering column adjustment28. Rear proximity display and alarm(if equipped)