Skyjack SJ46 AJ+ Service Manual

263
229042ABASJ46 AJ+, SJ46 AJ, SJ51 AJ
Manifold and Hydraulic Pumps Section 5 – Procedures
5.9-2 Hydraulic System Relief Valve
Adjustment
1. Locate Test Port 1
1
on the main manifold.
Remove the cap.
2. Connect a pressure gauge (345 bar / 5000 psi)
to Test Port 1
1
.
1
2
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. The pressure should be
214 bar (3100 psi). Follow the next steps for
adjusting the pressure, if needed.
5. Locate system relief valve RV6
2
.
6. Loosen the lock nut on system relief valve
RV6
2
. Turn the adjusting stem clockwise to
increase the pressure, and counterclockwise to
decrease the pressure.
7. Tighten the lock nut on system relief valve RV6
2
once 214 bar (3100 psi) is observed on
the gauge. Note: You must steer fully in one
direction to activate the pressure reading on the
gauge.
5.9-3 Riser Down Relief Valve Adjustment
1. Locate Test Port 5
3
on the main manifold.
2. Connect a pressure gauge (345 bar 5000 psi) to
Test Port 5
3
.
3
4
3. Start the engine from the base control console
and let it run for 2-5 minutes.
4. Raise the main boom to ensure the platform will
not contact the ground.
5. Fully lower the riser and check the reading on
the gauge. The pressure should be 189.5 bar
(2750 psi). Follow the next steps for adjusting
the pressure, if needed.
6. Locate riser down relief valve RV8
4
.
7. Loosen the lock nut on system relief valve
RV8
4
. Turn the adjusting stem clockwise to
increase the pressure, and counterclockwise to
decrease the pressure.
8. Tighten the lock nut on system relief valve RV8
2
once 189.5 bar (2750 psi) is observed on the
gauge. Note: You must fully lower the riser to
activate the pressure reading on the gauge.
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Skyjack SJ46 AJ+ Specifications

General

Brand	Skyjack
Model	SJ46 AJ+
Category	Boom Lifts
Language	English