JLG 4017PS Operator Manual - Manual (Page 170)

Section 7 - Lubrication and Maintenance
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Engine Oil
A. Engine Oil Level Check
1. Perform “Shut-Down Procedure” on page 4-3.
2. Open engine cover.
3. Remove dipstick (1) and check oil mark. The oil should be between the full (2)
and add (3) marks within the crosshatched area of the dipstick.
4. Replace dipstick.
5. If oil is low, remove oil fill cap (4) and add motor oil to bring oil up to the full mark
in the crosshatch area.
6. Replace oil fill cap.
7. Close and secure engine cover.
10
OW0970
OW1020
OB0380
4
ADD
3
2
1