TUBE 5341763 - Caterpillar

Required Tools
Illustration 1 g01623868
Tooling group "B"
198-4240 Digital Pressure Indicator Gp
Illustration 2 g02709177
Tooling group (D)
Table 2
Required Tools
Tool Item Part
Number Description Qty
B 198-4240 Digital Pressure Indicator Gp 1
B1 198-4234 Indicator 1
B2 198-4239 Pressure Sensor
41,368 kPa (6,000 psi) 1
B3 198-4236 Extension Cable 1
D D1 6V-7788 Flow Meter
5 to 60 L/min (2 to 15 US gpm) 1
D2 8C-6874 Reducer 1
D3 6V-9746 O-Ring Seal 1
D4 124-1901 Permanent Coupling 1
D5 122-6870 Bulk Hydraulic Hose 3 ft
D6 124-2147 Permanent Coupling 1
D7 6V-8942 O-Ring Reducer 1
D8 6V-8556 Nut 1
D9 6V-8398 O-Ring Seal 1
F 311-1362 Vacuum Cap 1 Machine Preparation
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Stop the engine.
Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
Attach 311-1362 Vacuum Cap onto the hydraulic tank. Attach an air supply hose onto the assembly. Apply 276 to 414 kPa (40 to 60 psi). This procedure will pull a vacuum on the hydraulic system.
Illustration 3 g03429842
Flow Meter Tool Layout
Tooling D
(1) Case drain hose
(2) Adapter
(3) Swing motor
(4) Swivel
Disconnect case drain hose (1) from adapter (2).
Connect the flow meter assembly (D) between adapter (2) and case drain hose (1). Refer to Illustration 3. Note: Correct orientation of the flow meter is necessary. The oil flows from swing motor (3) to swivel (4).
Swing solenoid valve location.
Illustration 4 g03429376
Pilot manifold
(5) Connector
(6) Solenoid valve for swing parking brake
Disconnect connector (5) from the solenoid valve for swing parking brake (6).
Remove 311-1362 Vacuum Cap and install the filler plug for the hydraulic tank. Test Procedure
Start the engine.
Place the engine speed dial at position "10" and AEC switch OFF. Reference: Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for engine rpm settings.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Slowly move the swing joystick and make sure that the swing parking brake is activated.
Move the swing joystick fully for 1 minute. Measure the case drain oil.
Stop the engine.
Connect connector (5) to the solenoid valve for swing parking brake (6).
Repeat this test procedure three times in order to obtain three measurements. For each test procedure, swing the upper structure to a different position. The following values specify the maximum acceptable flow of case drain oil when the swing relief pressure is set at 25500 + 1000 - 1500 kPa (3700 + 145 - 218 psi). New swing motor ... 30 L/min (7.9 US gpm)Rebuilt swing motor ... 35 L/min (9.2 US gpm)