Hydraulic System Main Relief Valve Adjustment (Rv1); Main Pump Relief Valve Adjustment (Rv5) - Skyjack SJ30AJE Service Manual

Turret
5.5-3 Hydraulic System Main Relief Valve
Adjustment (RV1)
1. Locate test port GP on the main manifold, and
connect a 350 bar (5000 psi) pressure gauge to
it.
GP
2. Pull out the base and platform e-stops.
3. From the base controls, use the telescope
retract switch to activate the pressure on the
gauge. Check the reading while still retracting.
4. The pressure should be 217 bar (3150 psi).
Follow the next steps for adjusting the pressure
if needed.
5. Locate the main system relief valve RV1.
6. Loosen the lock nut on the relief valve.
7. Turn the adjusting stem clockwise to increase
the pressure and counterclockwise to decrease
the pressure until 217 bar (3150 psi) is observed
on the gauge.
8. Tighten the lock nut.
SJ30AJE, SJ30ARJE
RV1
5.5-4 Main Pump Relief Valve Adjustment
(RV5)
1. Locate test port GP on the main manifold, and
connect a 350 bar (5000 psi) pressure gauge to
it.
GP
2. Pull out the base and platform e-stops.
3. From the base controls, use the telescope
retract switch to activate the pressure on the
gauge. Check the reading while still retracting.
4. The pressure should be 228 bar (3300 psi).
Follow the next steps for adjusting the pressure
if needed.
5. Locate relief valve RV5 on the main pump.
RV5
6. Loosen the lock nut on the relief valve.
7. Turn the adjusting stem clockwise to increase
the pressure and counterclockwise to decrease
the pressure until 3300 psi is observed on the
gauge.
8. Tighten the lock nut.
Section 5 – Procedures
196274AF
151