JLG 4017 Operator Manual - Manual (Page 105)

Section 6 - Lubrication & Maintenance
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Hydraulic Oil
A. Hydraulic Oil Level Check
1. Be sure all cylinders are fully retracted and machine is level.
2. Perform “Shut-Down Procedure” on page 3-4.
3. Check level of hydraulic oil at the sight gauge (6) on the hydraulic tank (5). The
oil level should be visible in the gauge window.
4. If hydraulic oil is low, remove oil fill cap (7) from filler neck. Add Mobilfluid ® 424
tractor hydraulic fluid to bring oil up to the upper mark on the sight gauge.
5. Replace hydraulic oil fill cap.
8
OW1150
OW1030
6
5
7
OZ0410