SEAL-SHAFT 1871265 - Caterpillar

Illustration 2 g02709177
Tooling group (D)
Table 2
Required Tools
Tool Item Part
Number Description Qty
B 198-4240 Digital Pressure Indicator Gp
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 US gpm 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 kPa to 414 kPa (40 psi to 60 psi). This procedure will pull a vacuum on the hydraulic system.
Illustration 3 g02788993
Swing Motor Compartment
(1) Case drain hose
(2) Adapter
Disconnect case drain hose (1) from adapter (2).
Illustration 4 g02352913
Flow Meter Tool Layout
Tooling D
(1) Case drain hose
(2) Adapter
(3) Swing motor
(4) Swivel
Connect the flow meter assembly (D) between adapter (2) and case drain hose (1). Refer to Illustration 4.Note: Correct orientation of the flow meter is necessary. The oil flows from swing motor (3) to swivel (4).
Illustration 5 g02072074
Pilot manifold
(5) Solenoid valve for swing parking brake
(6) Connector
Disconnect connector (6) from the solenoid valve for swing parking brake (5).
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 (6) to the solenoid valve for swing parking brake (5).
Repeat this test procedure three times 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 the value listed in Table 1.New swing motor ... 30 L/min (7.9 US gpm)Rebuilt swing motor ... 35 L/min (9.2 US gpm)