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323D2 Excavator TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar


323D2 Excavator TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

323D2 L FLC
Excavator
323D2 (S/N: FLC1-UP; KCE1-UP; JEG1-UP; XBK1-UP; PJP1-UP; YCR1-UP; TDT1-UP; JEX10001-UP; KBX1-UP)

Introduction

Inspections are the most basic form of condition monitoring. Inspections are easy to do and surprisingly effective at helping you spot equipment health issues. Proactive monitoring and analysis of equipment information will allow Dealers to intervene effectively before problems occur.

Note: Before adjusting product settings to comply with listed baseline TA2 values, consult SIS for the latest specification values.

Note: Specification values are based on the following machine settings unless stated otherwise

  • Engine Speed Dial "10"

  • AEC OFF

Creating an Electronic Copy

Use the following procedure to create an editable electronic copy from SIS Web.

  1. Click format to print.

  2. Save the document as an HTML format.

  3. Open the document with Microsoft Word.

Electrical System

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Table 1
Status(1)  Description  Specification  Actual  Comments 
  Inspect Battery Cables  Cables between the battery, the starter, and the engine ground must be the correct size. Wires and cables must be free of corrosion. Wires and cables must have cable support clamps to prevent stress on battery connections (terminals).     
  Battery Test(2)  12.4 VDC or more     
  Charging System Test(3)  18 VDC to 32 VDC     
  Electric Starting System Test(4)  12 to 16 V at −23° C (−10° F) to −7° C (19° F)     
14 to 18 V at −7° C (19° F) to 10° C (50° F)
16 to 24 V at 10° C (50° F) to 27° C (80° F)
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(1) N = Normal, M = Monitor, A = Action
(2) Refer to Special Instruction, SEHS7633, "Battery Test Procedure".
(3) Refer to Special Instruction, REHS0354, "Charging System Troubleshooting".
(4) Refer to Testing and Adjusting, RENR2415, "Electric Starting System - Test".

Engine

Cooling System

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Table 2
Status(1)  Description  Specification  Actual  Comments 
  Radiator Pressure Relief (Radiator Cap)(2)      Refer to System Operation Testing and Adjusting. 
  Freezing Point of Engine Coolant      Refer to Operation and Maintenance Manual. 
  Conditioner Test of Engine Coolant      Refer to Operation and Maintenance Manual. 
  Difference between the Upper and Lower Radiator Tank Temperatures       
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(1) N = Normal, M = Monitor, A = Action
(2) Test for the pressure that is listed on the cap.

Fuel System

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Table 3
Status(1)  Description  Specification  Actual  Comments 
  Maximum Fuel Pressure of the High-Pressure Fuel System  190 MPa (27557 psi)     
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(1) N = Normal, M = Monitor, A = Action

Lubrication System

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Table 4
Status(1)  Description  Specification  Actual  Comments 
  Minimum Engine Oil Pressure at Maximum Engine Speed  315 kPa (45 psi)     
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(1) N = Normal, M = Monitor, A = Action

Basic Engine

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Table 5
"Engine Performance - Test (Engine Speed)" 
Conditions  Specifications 
Status(1)  Engine  "AEC" Switch Position  "Engine Speed Dial" Position  Time (sec)  New  Rebuild  Service Limit  Actual  Comments 
  No load  OFF  10  0 to 3  1700 ± 50 rpm  1700 + 50 - 200 rpm     
  OFF 10  > 3  1600 ± 50 rpm  1600 + 50 - 200 rpm     
  ON 10  > 3  1100 ± 50 rpm  1100 ± 100 rpm     
  OFF 1  > 3  1000 ± 50 rpm  1000 ± 100 rpm     
  One touch low idle > 0  1100 ± 50 rpm  1100 ± 100 rpm     
  Load(2)  OFF  10  > 3 to 5  1700 rpm(3)  ≥ 1700 rpm  ≥ 1650 rpm     
  Travel(4)  OFF  10  > 10  1800 ± 50 rpm  ≥ 1750 rpm     
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(1) N = Normal, M = Monitor, A = Action
(2) Two pump main relief
(3) Minimum
(4) Both tracks blocked

Air Inlet and Exhaust System

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Table 6
Status(1)  Description  Specification  Actual  Comments 
Inlet Manifold Pressure - Test 
  Cylinder # 1 Exhaust Temperature (2)       
  Cylinder # 2 Exhaust Temperature (2)       
  Cylinder # 3 Exhaust Temperature(2)       
  Cylinder # 4 Exhaust Temperature(2)       
  Cylinder # 5 Exhaust Temperature(2)       
  Cylinder # 6 Exhaust Temperature(2)       
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(1) N = Normal, M = Monitor, A = Action
(2) Compare the exhaust temperature variance at each exhaust port.

Performance Checks

Reference: Refer to Testing & Adjusting, UENR2948, "Performance Tests" for more detail on the following test.

Operational Checks

Travel on Level Ground - Test

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Table 7
"Travel on Level Ground - Test" 
Status(1)  Travel Speed  New  Rebuild  Service Limit  Actual  Comments 
Travel Time (time in seconds) 
  HIGH  Forward  13.4 or less  15.4 or less  17.4 or less     
  Reverse  
  LOW  Forward  22.2 or less  25.5 or less  28.8 or less     
  Reverse  
Travel Deviation(2) mm (inch) 
  HIGH  Forward  800 mm (31.5 inch) or less  1200 mm (47.2 inch) or less  1500 mm (59.1 inch) or less     
  Reverse  
  LOW  Forward 
  Reverse  
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(1) N = Normal, M = Monitor, A = Action
(2) Travel deviation (distance) from the reference line

Travel on Level Ground - Test (Optional Test)

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Table 8
"Travel on Level Ground - Test (Optional Test)" 
Time For Three Revolutions (time in seconds) 
Status(1)  Undercarriage  Travel Speed  New  Rebuild  Service Limit  Actual  Comments 
Right Left
  Standard  HIGH  Forward  17.6 or less  20.3 or less  22.9 or less       
  Reverse  
  LOW Forward  28.2 or less  32.4 or less  36.7 or less       
  Reverse  
  Long  HIGH  Forward  19.1 or less  22.0 or less  24.9 or less       
  Reverse  
  LOW Forward  30.6 or less  35.2 or less  39.8 or less       
  Reverse  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Automatic Travel Speed Control - Test

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Table 9
"Automatic Travel Speed Control - Test" 
Status(1)  Machine Settings  Engine Speed 
Engine Speed Dial "10"
AEC switch OFF
Description Pressure tap  Speed  Specification  Actual  Comments 
  Right Travel  Idler Pump  High to Low  32000 ± 500 kPa (4641 ± 73 psi)     
  Low to High 18000 ± 500 kPa (2610 ± 73 psi)    
  Left Travel  Drive Pump  High to Low  32000 ± 500 kPa (4641 ± 73 psi)     
  Low to High 18000 ± 500 kPa (2610 ± 73 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Machine Drift on a Slope - Check

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Table 10
"Machine Drift on a Slope - Check" 
Status(1)  Description  Specification  Actual  Comments 
New Rebuild Service Limit 
  Machine Drift  0 mm  0 mm  0 mm     
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(1) N = Normal, M = Monitor, A = Action

Swing Speed and Overswing on Level Ground - Check

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Table 11
"Swing Speed and Overswing on Level Ground - Check" 
Status(1)  Description  New  Rebuild  Service Limit  Actual  Comments 
Swing Speed(2) (seconds) 
  Right Swing  17.2 ± 0.5  19.5 or less  22.0 or less     
  Left Swing 
Overswing mm (inch) 
  Right Swing  1100 mm (43.3 inch) or less  1200 mm (47.2 inch) or less  1400 mm (63.0 inch) or less     
  Left Swing 
Swing Acceleration on Level Ground (3) (seconds) 
  Right Swing  5.1 or less  5.5 or less  6.1 or less     
  Left Swing 
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(1) N = Normal, M = Monitor, A = Action
(2) The time that is required to complete three revolutions
(3) The time that is required to complete a 180 degree swing operation

Swing Speed and Swing Drift on a Slope - Check

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Table 12
"Swing Speed and Swing Drift on a Slope" 
Status(1)  Description  New  Rebuild  Service Limit  Actual  Comments 
Swing Time (seconds) 
  Right Swing  4.1 or less  4.6 or less  5.4 or less     
  Left Swing 
Swing Drift mm (inch) 
  Right Swing  0  0  0     
  Left Swing 
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(1) N = Normal, M = Monitor, A = Action

Cylinder Drift - Check (Loaded Bucket)

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Table 13
"Cylinder Drift - Check (Loaded Bucket)" 
Status(1)  Description  New  Rebuild  Service Limit  Actual  Comments 
  Boom Cylinder  6.0 mm (0.24 inch) or less  12.0 mm (0.47 inch) or less  24.0 mm (0.94 inch) or less     
  Stick Cylinder  12.0 mm (0.47 inch) or less  18.0 mm (0.71 inch) or less  30.0 mm (1.18 inch) or less     
  Bucket Cylinder  18.0 mm (0.71 inch) or less  27.0 mm (1.06 inch) or less  45.0 mm (1.77 inch) or less     
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(1) N = Normal, M = Monitor, A = Action

Cylinder Drift - Check (Empty Bucket)

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Table 14
"Cylinder Drift - Check (Empty Bucket)" 
Status(1)  Description  Cylinder Position  Drift Direction  New  Rebuild  Service Limit  Actual  Comments 
  Boom Cylinder  Extended  Boom Down  6.0 mm (0.24 inch) or less  12.0 mm (0.47 inch) or less  24.0 mm (0.94 inch) or less     
  Stick Cylinder  Extended  Stick In  25.0 mm (0.98 inch) or less  30.0 mm (1.18 inch) or less  40.0 mm (1.57 inch) or less     
  Retracted Stick Out  10.0 mm (0.39 inch) or less  15.0 mm (0.59 inch) or less  25.0 mm (0.98 inch) or less     
  Bucket Cylinder  Extended  Bucket Closed  10.0 mm (0.39 inch) or less  15.0 mm (0.59 inch) or less  25.0 mm (0.98 inch) or less     
  Retracted Bucket Open  20.0 mm (0.79 inch) or less  25.0 mm (0.98 inch) or less  25.0 mm (0.98 inch) or less     
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(1) N = Normal, M = Monitor, A = Action

Cylinder Speed - Check

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Table 15
"Cylinder Speed - Check" 
Status(1)  Description  Cylinder Position  Cylinder Operating Speed (seconds) 
New Rebuild(2) Service Limit(2) Actual Comments 
  Boom  Extension  3.3 ± 0.5  3.7  4.1     
  Retraction 1.7 ± 0.5 2.0  2.2     
  Stick  Extension  3.4 ± 0.5  3.9  4.4     
  Retraction 2.6 ± 0.5 2.8  3.3     
  Bucket(3)  Extension  3.9 ± 0.5  4.5  5.0     
  Retraction 2.1 ± 0.5 2.5  2.7     
  Bucket(4)  Extension  4.6 ± 0.5  5.3  6.0     
  Retraction 2.6 ± 0.5 3.0  3.4     
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(1) N = Normal, M = Monitor, A = Action
(2) Maximum
(3) B1 - Family
(4) CB2 - Family

Pilot System

Reference: Refer to Testing & Adjusting, UENR2948 for more detail on the following tests.

Relief Valve (Pilot) - Test and Adjust

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Table 16
"Relief Valve (Pilot) - Test and Adjust" 
Status(1)  Description  Machine Settings  Specification  Actual  Comments 
  Pilot relief valve pressure  Speed Dial "10"
AEC switch OFF 		 4100 ± 200 kPa (595 ± 29 psi)     
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(1) N = Normal, M = Monitor, A = Action

Accumulator (Pilot) - Test and Charge

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Table 17
"Accumulator (Pilot) - Test and Charge" 
Status(1)  Description  Specification  Actual  Comments 
  Pilot Accumulator  1035 kPa (150 psi)    Should stay above 1035 kPa (150 psi) for 20 seconds 
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(1) N = Normal, M = Monitor, A = Action

Power Shift Pressure - Check

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Table 18
"Relief Valve (Pilot) - Test and Adjust" 
Status(1)  Description  Machine Settings  Specification  Commanded(2)  Actual(3)  Comments 
  Power Shift Pressure
(No Load) 		 Speed Dial "10"
AEC switch OFF 		 3300 ± 250 kPa (479 ± 36 psi)       
  Power Shift Pressure
(Full Load) 		 less than 1000 kPa (145 psi)      
Show/hide table
(1) N = Normal, M = Monitor, A = Action
(2) Value from the monitor
(3) Value from the pressure gauge

Main Control Valve

Reference: Refer to Testing & Adjusting, UENR2948 for more detail on the following tests.

Relief Valve (Main) - Test and Adjust

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Table 19
"Relief Valve (Main) - Test and Adjust" 
Status(1)  Description  Machine Settings  Specification  Actual  Comments 
  Standard  Speed Dial "10"
AEC switch OFF 		 35000 + 500 - 1000 kPa (5076 + 73 - 145 psi)     
  Heavy Lift(2)  36000 + 500 - 1000 kPa (5221 + 73 - 145 psi)    
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(1) N = Normal, M = Monitor, A = Action
(2) The main relief valve should have a 1000 kPa (145 psi) pressure difference between heavy lift mode and standard lift mode.

Relief Valve (Line) - Test and Adjust

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Table 20
"Relief Valve (Line) - Test and Adjust" 
Status(1)  Cylinder  Cylinder Position  Machine Settings  Relief Pressure Setting  Actual  Comments 
  Boom  Extended  Speed Dial "10"
AEC switch OFF 		 38000 ± 500 kPa (5512 ± 73 psi)     
  Retracted 37000 ± 500 kPa (5366 ± 73 psi)   
  Stick  Extended  37000 ± 500 kPa (5366 ± 73 psi)    
  Retracted 38000 ± 500 kPa (5512 ± 73 psi)    
  Bucket  Extended  37000 ± 500 kPa (5366 ± 73 psi)    
  Retracted  
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(1) N = Normal, M = Monitor, A = Action

Swing System

Reference: Refer to Testing & Adjusting, UENR2948 for more detail on the following tests.

Relief Valve (Swing) - Test and Adjust

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Table 21
"Relief Valve (Swing) - Test and Adjust" 
  Machine Settings  Engine Speed 
Engine speed dial "10"
AEC switch OFF
Status(1)  Description  Specification  Actual  Comments 
  Right Swing  25550 + 1000 - 1500 kPa (3700 + 145 - 218 psi)     
  Left Swing   
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(1) N = Normal, M = Monitor, A = Action

Swing Bearing Movement - Measure

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Table 22
"Swing Bearing Movement - Measure" 
Status(1)  Description  Specification  Actual  Comments 
New Service Limit
  Vertical Movement of Swing Bearing  2.0 mm (0.08 inch)  4.0 mm (0.16 inch)     
  Circular Movement of Swing Bearing  4.5 mm (0.18 inch)  13.5 mm (0.53 inch)     
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(1) N = Normal, M = Monitor, A = Action

Travel System

Reference: Refer to Testing & Adjusting, UENR2948 for more detail on the following tests.

Relief Valve (Crossover) - Test and Adjust

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Table 23
"Relief Valve (Crossover) - Test and Adjust" 
Status(1)  Description  Direction  Specification  Actual  Comments 
  Right Travel  Forward  37000 ± 500 kPa (5366 ± 72 psi)     
  Reverse  
  Left Travel  Forward   
  Reverse  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

S.O.S

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Table 24
Status(1)  Description  Obtain  Comments 
  Engine Oil Sample     
  Engine Coolant Sample (Level II)     
  Hydraulic Oil Sample     
  Swing Drive Oil Sample     
  Right Final Drive Oil Sample     
  Left Final Drive Oil Sample     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

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