JLG 1850SJ Service And Maintenance Manual page 379

JIB LIFT UP
1. Install high pressure gauge at port MJB.
2. Fully extend jib lift cylinder or cap port JB.
3. Set pressure to 2800 psi.(193bar). Clockwise increases
and Counterclockwise decreases setting. Adjustment is
on the boom side of MJB.
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SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
JIB LIFT DOWN
1. Install high pressure gauge at port MJA.
2. Fully retract jib lift cylinder or cap port JA. Set pressure
to 1200 psi (83bar).
3. CW increases and CCW decreases setting. Adjustment is
on the boom side of MJA.
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