HOUSING AS 3980700 - Caterpillar

Improper attachment of attachments could result in injury or death.Do not operate this machine until you have positive indication that the coupler pins are fully engaged.To check for engagement:1. Keep the attachment close to the ground2. Push the tilt control to tilt the attachment down.3. Put down pressure on the attachment.4. Back the machine up and make sure there is not movement between the attachment and the coupler.
Leaving the quick coupler pin switch in the UNLOCKED position and failure to move the ball valve lever to the VERTICAL position could result in injury or death.
Illustration 1 g00507123
The quick coupler pin switch (2) with the red lock button (1) is used to engage the pins. The quick coupler pin switch is also used to disengage the quick coupler pins.Note: If the quick coupler switch is in the UNLOCK position an action alarm will sound in the side console.
Illustration 2 g00290060
Illustration 3 g00636898
Auxiliary hoses for attachments must be removed before the quick coupler pins are disengaged.Pulling the attachments with the auxiliary hoses could result in machine damage.
Disengage - Push the red button (1) forward and push down on the top of the quick coupler pin switch (2) to the unlocked position. Push the quick coupler pin switch to the unlocked position in order to allow movement of the coupler pins. When the quick coupler pin switch is in the UNLOCKED position, the coupler pins can be engaged or disengaged. Also, the handle for the ball valve must be in the HORIZONTAL position (3) in order to allow movement of the coupler pins. The coupler pins are engaged with the multipurpose control and disengaged with the multipurpose control. While the quick coupler pin switch is in the UNLOCKED position, move the multipurpose lever forward to position (4) in order to disengage the coupler pins.
Illustration 4 g00636903
Illustration 5 g00290061
Engage - While the handle for the ball valve is in HORIZONTAL position, the quick coupler pins can be engaged with the quick coupler pin switch in the UNLOCKED position or in the LOCKED position. Move the multipurpose lever backward to position (5) in order to engage the quick coupler pins. After the quick coupler pins are engaged, return the handle for the ball valve to the VERTICAL position (6) in order to prevent movement of the quick coupler pins. The quick coupler pin switch should be in the LOCKED position when you are not disengaging the quick coupler pins.