JLG E300 Service Manual - Manual (Page 157)

SECTION 5 - HYDRAULICS
3121253 – JLG Lift – 5-15
STEER RIGHT – 1400 PSI (97 BAR))
1. Install pressure gauge at port MP of Main Valve
Bank.
2. Activate Steer Right and hold to end of stroke. Take
pressure reading.
3. After loosening relief valve jam nut, adjust valve
clockwise to increase pressure or counterclockwise
to reduce pressure accordingly.
4. Tighten relief valve jam nut and repeat step 2 to ver-
ify setting.
STEER LEFT – 2000 PSI (138 BAR)
1. Install pressure gauge at port MP of Main Valve
Bank.
2. Activate Steer Left and hold to end of stroke. Take
pressure reading.
3. After loosening relief valve jam nut, adjust valve
clockwise to increase pressure or counterclockwise
to reduce pressure accordingly.
4. Tighten relief valve jam nut and repeat step 2 to ver-
ify setting.
STEER RIGHT
RELIEF VALVE
STEER LEFT
RELIEF VALVE