PLANETARY GP 9P5362 - Caterpillar

Test Preparation
Reference: Refer to Testing and Adjusting, "System Pressure - Release" for the correct procedures for relieving hydraulic oil pressure.
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Install the steering frame lock into the LOCKED position.Required Tools
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Typical electric hydraulic pump group (F) with pressure gauge (G).
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Test manifold block (H)
Table 3
Tool Part Number Description Qty
F 3S-6224 Electric Hydraulic Pump Gp 1
G 8T-0860 Pressure Gauge (0 to 40,000 kPa (0 to 5,800 psi)) 1
H 474-8877 Test Manifold Block 2
J 5P-1838 Adapter 2
K 1P-2375 Quick Connect Coupler 2
L 1P-2376 Quick Connect Coupler 2
M 8F-0024 Hose As 2
N 3B-7722 Pipe Bushing 1
P 7J-8611 Pipe Elbow 2 Test Procedure
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Steering Control Valve
(2) Right-hand and Left-hand turn steering work port relief and makeup valves
Remove the pump backup relief valve (2). The pump backup relief valve is located in the steering control valve. The steering control valve is located in front of the transmission housing in the hitch area. The pump backup relief valve needs to be bench tested. Remove the pump backup relief valve (2).
Secure test manifold block (H) in a suitable holding device.
Install two adapters (J) and two quick connect couplers (K) in test manifold block (H).
Attach two quick connect couplers (L) to two hose assemblies (M).
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Typical electric hydraulic pump group (F) with pressure gauge (G).
Connect two hose assemblies (M), two pipe bushings (N), and pipe elbow (P) to electric hydraulic pump group (F).
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(2) Steering work port relief valve
(2A) Locknut
(2B) Adjustment screw
(H) Test manifold block
(aa) Port for the return oil
(bb) Port for the pressure line from electric hydraulic pump group (F)
Install steering work port valve (2) into test manifold block (H).
Install oil return line to port (aa).
Install the pressure oil line from electric hydraulic pump group (F) to port (bb).Note: Ensure that the hose assemblies are connected to the proper test port. If the lines are not connected correctly, the relief valve setting will be incorrect.
Turn electric hydraulic pump group (F) into the ON position. Check for leaks at any of the connections.
The 3S-6224 Electric Hydraulic Pump only has a 7.6 L (2 US gal) reservoir. Pump damage may result if the pump is operated with an empty reservoir.
Slowly increase the pressure. Record the pressure when the steering work port relief valve opens.
Shut off electric hydraulic pump group (F).The pressure of the steering work port relief valve should be 30600 400 kPa (4438 58 psi) at a flow of 7.6 L/min (2 US gpm). If the pressure setting is within the specified pressure range, install the relief valve back into control manifold (1).Adjust Procedure
Loosen the locknut (2A). Turn the adjustment screw (2B) counterclockwise to lower the pressure of the valve. Turn the adjustment screw (2B) clockwise to increase the pressure of the valve. Tighten the locknut (2A) to 20 3 N m (15 2 lb ft) after the correct pressure is reached. The valve is faulty if the adjustment screw does not affect