568 Forest Machine Hydraulic System Swing Speed and Overswing on Level Ground - Check Caterpillar


Swing Speed and Overswing on Level Ground - Check
`
1.1. Introduction
2.1. Required Tools
3.1. Test Procedure - 568 GF
4.1. Test Procedure - 568 LL
5.1. Worksheet

Introduction

Measuring the swing speed and the overswing of the machine will determine if there is a need to check the swing motor or the anti-reaction valve. The fine swing control switch (if equipped) must be in the OFF position.

Note: The engine speed and/or the machine configuration that is used during this test can affect the results of this test. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for the engine speed that was used for this test. Refer to Testing and Adjusting, "Operational Checks" for the machine configurations that were used for this test.

Note: The relief valve pressure settings must be set to the relief valve pressure specification before performing this operational check. Refer to Testing and Adjusting, "Specifications".

Required Tools

Table 1
Required Tools 
Description  Qty 
Measuring Tape 
Stopwatch 

Test Procedure - 568 GF



Illustration 1g00297618

  1. Position the machine on level ground. Refer to Illustration 1.

    Note: The bucket should be empty.

  2. Stop the engine.


    Illustration 2g00293972
    (A) Upper frame
    (B) Undercarriage frame
    (C) Marking

  3. To indicate the relationship of the two positions, put a mark (C) on the inner race and the outer race of the swing bearing. The mark will be used as a target to stop the swing operation. Refer to Illustration 2.

  4. Start the engine.

  5. Move the swing joystick in either direction until the machine completes a 180 degree swing operation away from the target.

  6. Move the swing joystick in either direction until the machine completes a 180 degree swing operation toward the target. Return the swing joystick to the NEUTRAL position at the target.

  7. Measure the amount of overswing by measuring the distance between the marks on the swing bearing. Refer to Illustration 2.

    Note: Use a point that is visible from the operator seat as a reference point for the target.

Test Procedure - 568 LL



Illustration 3g01404964

  1. Position the machine on level ground. Position the implements at maximum reach and close the work tool. Position the work tool above the ground so that the work tool will not come in contact with any obstacles. Refer to Illustration 3 for the correct machine position.

  2. Stop the engine.


    Illustration 4g00293972
    (A) Upper frame
    (B) Undercarriage frame
    (C) Marking

  3. To indicate the relationship of the two positions, put a mark (C) on the inner race and the outer race of the swing bearing. The mark will be used as a target to stop the swing operation. Refer to Illustration 4.

  4. Start the engine.

  5. Place the machine controls at the following settings: Engine speed dial "10" and AEC switch OFF.

  6. Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).

  7. Move the swing joystick in either direction until the machine completes a 180 degree swing operation away from the target.

  8. Move the swing joystick in either direction until the machine completes a 180 degree swing operation toward the target. Return the swing joystick to the NEUTRAL position at the target.

  9. Measure the amount of overswing by measuring the distance between the marks on the swing bearing. Refer to Illustration 4.

    Note: Use a point that is visible from the operator seat as a reference point for the target.

  10. Move the swing joystick in each direction and measure the time that is required to complete a 180 degree swing operation.

Worksheet

Table 2
"Swing Speed and Overswing on Level Ground - Check" 
Date  Machine Serial Number 
Overswing mm (inch) 
Item  568 GF  568 LL  Actual 
Right Swing  1200 mm (47.2 inch) or less  1200 mm (47.2 inch) or less   
Left Swing 
Swing Time(1) (seconds) 
Item  568 GF  568 LL  Actual 
Right Swing  4.7 or less  4.7 or less   
Left Swing 
(1) The time that is required to complete a 180 degree swing operation

Information System:

568 Forest Machine Hydraulic System Travel on Level Ground - Test - Optional Test
568 Forest Machine Hydraulic System Travel on Level Ground - Test
568 Forest Machine Hydraulic System Operational Checks
330D and 336D Excavators and 336D Mobile Hydraulic Power Units Maintenance Interval Schedule
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Crankshaft Front Seal - Remove and Install
Installation of the 281-8245 Auxiliary Hydraulic Lines Gp on Certain Hydraulic Excavators {5057, 5057}
568 Forest Machine Hydraulic System Specifications
568 Forest Machine Hydraulic System Relief Valve (Swing) - Test and Adjust
568 Forest Machine Hydraulic System Swing Motor - Test - Measurement of Case Drain Oil
568 Forest Machine Hydraulic System Relief Valve (Line) - Test and Adjust
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Crankshaft Vibration Damper and Pulley - Remove and Install
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Water Pump - Remove and Install
725C, 725C2, 730C, 730C Ejector, 730C2, 730C2 EJ, 735B, 735C, 740B, 740B Ejector, 740C Ejector and 745C Articulated Trucks VIMSTM 3G Electrical Connector - Inspect
2010/04/28 Improved Grapple Stick Pins for the G100B Series Contractor Grapples {6307}
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Refrigerant Compressor - Remove and Install
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Refrigerant Receiver-Dryer - Remove and Install
349F and 352F Excavators Hydraulic System Relief Valve (Crossover) - Test and Adjust
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Refrigerant Condenser - Remove and Install
Installation of the 300-1190 Auxiliary Hydraulic Lines Gp {5057}
MP15, MP20, MP30 and MP40 Multi-Processors Plate Locations and Film Locations
349E Excavator Hydraulic System Travel Motor - Test - Measurement of Case Drain Oil
374D Excavator Machine System Specifications Boom - 7.00 m (23.0 ft)
374D Excavator Machine System Specifications Stick - 2.57 m (8.432 ft)
374D Excavator Machine System Specifications Stick - 3.60 m (11.8 ft)