JLG Triple-L Operator Manual - Manual (Page 46)

SECTION 4 - SERVICE AND MAINTENANCE
4-6 – Triple-L-Trailer – 3121224
.
Relief Valve Adjustment:
1. Loosen Jam Nut
2. Adjust Pressure
a. Turn screw clockwise to increase pressure.
b. Turn screw counter clockwise to decrease pressure.
NOTE: Outlet Port (Pressure) flow must be blocked to make relief valve operate while adjusting.
3. Tighten Jam Nut
RETURN TUBE
SUCTION TUBE
DRAIN HOLE REF
SWITCH
FILTER
BRACKET
MOTOR
RESERVOIR
ADJUSTABLE
RELIEF VALVE
Figure 4-4. 12 Volt Motor/Pump Parts