BOLT-FORCING 1635818 - Caterpillar

Introduction
Use the following procedure to measure the case drain of the swing motor.
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.
Required Tools
Illustration 1 g01623868
Tooling group "B"
198-4240 Digital Pressure Indicator Gp
Illustration 2 g06217214
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 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 2
F 311-1362 Vacuum Cap 1 Machine Preparation
Stop the engine.
Release the pressure in the hydraulic system. Refer to Operation and Maintenance Manual, "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 g06254746
Flow Meter Tool Layout
Tooling D
(1) Adapter
(2) Case drain hose
(3) Swivel
(4) Swing motor
Install the following tools in accordance with the flow meter tool layout. Refer to Illustration 3.
Disconnect case drain hose (2) from adapter (1).
Connect the flow meter assembly (D) between adapter (1) and case drain hose (1).Note: Correct orientation of the flow meter is necessary. The oil flows from swing motor (4) to swivel (3).
Remove 311-1362 Vacuum Cap.
Illustration 4 g06197715
Main control valve
(5) Solenoid valve for swing parking brake
(6) Connector
Disconnect connector (6) from the solenoid valve for swing parking brake (5).Test Procedure
Start the engine.
Place the hydraulic activation control lever in the UNLOCKED position.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Place the machine controls at the following settings: engine speed dial "7" and AEC switch OFF. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for engine rpm settings.
Slowly move the swing joystick and make sure that the swing brake is activated.
Move the swing joystick fully for 1 minute. Measure the case drain oil. Refer to Table 1.
Stop the engine.
Connect connector (6) to the solenoid valve for the swing parking brake (5).
Repeat this test procedure three times to obtain three measurements of case drain oil. For each test procedure, swing the upper structure to a different position.