CONTROL AR. 5J4737 - Caterpillar

Quick Coupler
LOCKED - Move the switch to this position in order to retract the wedge and engage the quick coupler onto the work tool
UNLOCKED - Move the switch for the quick coupler to the UNLOCKED position in order to extend the wedge. Use this position only during the coupling or uncoupling of the work tool. The hydraulic system is pressurized when the switch is in this position.Note: An alarm will sound whenever the switch is in the UNLOCKED or LOCKED position.Radio Mute Switch (24)
Radio Mute Switch - If equipped, press the switch in order to mute the radio. The indicator lamp will turn on.Lower Window Wiper and Window Washer (25-26) (If Equipped)
Lower Window Wiper (25) - Push down on the top of the switch in order to turn on the lower window wiper. Push down the bottom portion of the switch in order to turn off the lower window wiper.
Lower Window Washer (26) - Push down on the top of the switch and keep the switch depressed in order to activate the lower window washer. While the switch is depressed, the washer fluid will spray from the nozzle.
If the wiper does not operate with the switch in the ON position, turn the switch off immediately. Check the cause. If the switch remains on, motor failure can result.
If the washer is used continuously for more than 20 seconds or used when no washer solution comes out, motor failure can result.
SmartBoom Control (27A)
This machine may be equipped with SmartBoom Control. For more information, refer to Operation and Maintenance Manual, "SmartBoom Control".Fine Swing Control (27B)
The Fine Swing Control delays the engagement of the swing parking brake.If the machine is operating on a slope with the Fine Swing Control in the ON position, the swing motion may become uncontrollable which could result in property damage, personal injury or death.Turn the Fine Swing Control to the OFF position when the machine is operating on a slope.
Fine Swing Control - If equipped, push down on the top of the switch in order to activate the fine swing control.When the fine swing control is ON, the swing parking brake is released. Swing control improves during deceleration of a swing because the swing is allowed to drift instead of stopping abruptly.Push down on the bottom of the switch in order to turn off the fine swing control. Operate the machine with the fine swing control in the OFF position when the machine is on a slope. Operate the machine with the fine swing control in the OFF position when great swing forces are required. For example, digging on a sidewall requires great swing force. Operate the machine with the fine swing control in the OFF position in order to control the motion with the swing brake.Overload Warning Device (28)
If equipped, the switch for the overload warning device is located on the right console.
Overload Warning Device - In lifting applications, the overload warning device activates a buzzer when there is an unstable load condition. When the buzzer