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Manifolds and Hydraulic Pumps
5.8-4 Hydraulic System Relief Valve
Adjustment
To adjust the system relief valve (RV1), you are
required to temporarily adjust the high pressure
setting on the system pump to 3300 psi. Refer to
Hydraulic High Pressure Adjustment.
1. Locate the GP2 port
and remove the cap.
1
Main Manifold and Pressure Gauge
2. Connect a pressure gauge (5000 psi) to the GP2
port.
3. Start the engine from the base control console
and let it run for 2-5 minutes.
4. Steer fully to one direction and then check the
reading on the gauge. Standard pressure should
be 3250 psi. Follow the next steps for adjusting
pressure if needed.
SJ82 T, SJ86 T
5.8-3
on the main manifold
1
5. Locate the system relief valve (RV1)
R V
G P
3
2
S V
3
D S
V 3
D S
Main Manifold
6. Loosen the lock nut on the system relief valve.
Turn the adjusting stem clockwise to increase
pressure and counterclockwise to decrease
pressure.
7. Tighten the lock nut on the system relief valve
once 3250 psi is observed on the gauge. You
must steer fully in one direction to activate
pressure reading on gauge.
8. Reset the system pump to 3050 psi.
Refer to
5.8-3 Hydraulic High Pressure
Adjustment.
Section 5 – Procedures
.
2
2
V 1
D S
V 2
4
C V
5
C V
229040ABA
247
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