JLG 4017 Operator Manual - Manual (Page 76)

Section 4 - Attachments
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Hydraulic Operated Attachment
1. Install attachment (see page 4-8 or 4-9).
2. Lower attachment to ground. Set parking brake, shut off engine and turn key
back to the "ON" position.
3. Relieve pressure in the hydraulic system by actuating the joystick (1), (2).
4. Connect the quick-disconnect fittings (3).
5. Start the engine.
OZ0620
1
2