DRAIN GP-ENGINE OIL 2074171 - Caterpillar

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Install clamps (2) and bolts (1).Bench Test
Table 2
REQUIRED TOOLS
Part Number Description Quantity
8T-0860 Pressure Gauge (0 to 40,000 kPa (0 to 5,800 psi)) 1
3S-6224 Electric Hydraulic Pump 1
8F-0024 Hose Assembly 2
1P-2376 Coupler Assembly 2
1P-2375 Coupler Assembly 2
1P-2377 Plug 2
7J-8611 Elbow 1
3B-7722 Bushing 2
204-3716 Adapter 2
360-3692 Plug 1
3J-1907 O-Ring Seal 3
299-1731 Test Manifold Gp 1
Use the following steps to test the setting of the line relief valve.
Lower all the work tools to the ground.
Stop the engine.
Move all the control levers to all the positions. This will release the system pressure.
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(1) Line relief valve
(2) Main relief valve
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Remove line relief valve (1).
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Secure 299-1731 Test Manifold Gp (3) in a suitable holding device.
Install one 360-3692 Plug with one 3J-1907 O-Ring Seal in the bottom of 299-1731 Test Manifold Gp (3).
Install two 204-3716 Adapters (4) with two 3J-1907 O-Ring Seals and two 1P-2375 Quick Connect Couplers (5) in 299-1731 Test Manifold Gp (3).
Attach two 1P-2376 Adapters (6) to two 8F-0024 Hose Assemblies (7).
Install line relief valve (1) in 299-1731 Test Manifold Gp (3).
Connect two 8F-0024 Hose Assemblies (7), two 3B-7722 Bushings, and 7J-8611 Elbows to 3S-6224 Electric Hydraulic Pump.
Connect 8T-0860 Gauge to 3S-6224 Electric Hydraulic Pump.
Turn the 3S-6224 Electric Hydraulic Pump to the ON position. Check for leaks at the connection.
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 line relief valve opens. Record this pressure onto the worksheet. Refer to Testing and Adjusting, "Worksheet - Troubleshoot".The pressure setting of the line relief valve should be 24150 350 kPa (3500 50 psi).
Stop the pump.
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If the line relief valve is within the specification, then go to Step 22. If the line relief valve is not within the specification, then an adjustment is required.
Loosen locknut (8) and turn adjusting screw (9) clockwise to increase pressure. Turn adjusting screw (9) counterclockwise to decrease pressure.
Check the oil level in 3S-6224 Electric Hydraulic Pump and refill the oil if necessary. Repeat Steps 13, 19, 20, and 21.
Tighten locknut (8) to a torque of 24 3 N m (18 2 lb ft).
Remove line relief valve (1).
Install a new O-ring on line relief valve (1).
Install the line relief valve to a torque of 45 N m (35 lb ft).