JLG 4017PS Operator Manual - Manual (Page 174)

Section 7 - Lubrication and Maintenance
7-22 31200753
Air Intake System
A. Air Filter Check
1. Perform “Shut-Down Procedure” on page 4-3.
2. Open engine cover.
3. Locate air cleaner (1) and remove dust from vacuator valve (2) by squeezing
bottom of valve to allow loose particles to fall out.
4. Close and secure engine cover.
Note: Only remove cover to service elements as restriction indicator indicates.
Excessive access to check elements can lead to premature element failure.
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OW0980
OW1010
OB0420
4
2
5
6
3
1