jcb JS300 Service Manual page 231

Refer to: Operation > Instruments > Instrument Panel (Page 65).
7. Align the boom and dipper so that the colour display displays the green boom and dipper symbols. A grey
boom or dipper symbol signifies mis-alignment. When the boom and dipper are aligned, the Quickhitch is
in the Quickhitch ready state.
Refer to: Operation > Instruments > Instrument Panel (Page 65).
8. Crowd the bucket to raise system pressure. The boom warning light and switch LED will be illuminated
constantly.
9. Press and hold the Quickhitch button on the right joystick to confirm unlock of the Quickhitch. The Quickhitch
will start to unlock and will remain unlocked for as long as the button is pressed. Manoeuvre the machine
to remove the attachment and fix on the new attachment. Once the Quickhitch button is released the
Quickhitch will start to lock.
10. The Quickhitch display screen is displayed for 3 seconds as a reminder to the operator to re-connect any
hoses.
11. Physically check the attachment is properly fitted. Rotate the rotary dial to select √ and press enter to
acknowledge that you have inspected the security of the attachment. If the attachment is incorrectly fitted
then re-start the QuickHitch Process
Installation
This operation is easier done by two people, one person to operate the controls and one to line up the pivots.
1. Before the Quickhitch is installed, make sure that the tipping lever locking bolt assembly is attached with
the nut.
2. Put the Quickhitch on solid, level ground. Use the safe and correct lifting equipment to move the Quickhitch.
3. Move the machine so that the dipper arm and Quickhitch are aligned.
4. Engage the dipper:
4.1. Operate the controls to line up the hole in the dipper arm with the holes in the Quickhitch.
4.2. Install the pivot pin and secure it with the nut and bolt.
156
Figure 193.
Figure 194.
Figure 195.
9831/1100-2
Attachments
Quickhitch
156