JLG ERT2669, Service And Maintenance Manual

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SECTION 4 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
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B. Steer Left Relief
1. Follow steps of steer left relief pressure setting
checks above so that the gauge connected to the
“M1” port is reading the steer right relief setting
2. Loosen the jam nut on the steer left relief valve
(highlighted green in Figure 4-29.) and turn the
adjustment screw (highlighted red in
Figure 4-29.) clockwise to increase pressure or
counterclockwise to decrease pressure.
3. Once the gauge reads a pressure of 1914 PSI
(132Bar) tighten down the jam nut (making sure
the adjustment screw does not rotate)
Figure 4-29. Jam Nut Location (Steer Left Relief Valve)