Adjustments Made In Traction Circuit - JLG 1850SJ Service And Maintenance Manual

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS

6. Adjustments Made in Traction Circuit

CHARGE PRESSURE RELIEF
1. Install gauge 1000psi (69bar)) at port M3 on traction
pump.
2. With the drive hubs disconnected, start the engine.
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3. Adjust the charge relief valve to obtain reading of 400psi
(28bar). The charge relief is located on the turntable side
of the pump above M3. Clockwise increases pressure,
Counterclockwise decreases pressure.
LOOP FLUSHING RELIEF
1. Install pressure gauge at port MP on traction valve.
2. With hubs still disconnected energize Drive, adjust loop
flushing valve to obtain gauge reading of 350psi (24bar).
Clockwise increases
decreases.
pressure, counter clockwise
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