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320D2 Excavator TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar


320D2 Excavator TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

320D2 FM BW2
Forest Machine
320D2 FM (S/N: BW21-UP; CY21-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)     
Show/hide table
(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 Postion  "Engine Speed Dial" Position  Time (sec)  New  Rebuild  Service Limit  Actual  Comments 
  No Load  OFF  10  0 to 5  1600 ± 50 rpm  1400 to 1650 rpm     
  OFF 10  > 5  1700 ± 50 rpm  1500 to 1750 rpm     
  ON 10  > 5  1100 ± 50 rpm  1000 to 1200 rpm     
  OFF 1  > 5  1000 ± 50 rpm  900 to 1100 rpm     
  One touch low idle > 0  1100 ± 50 rpm  1000 to 1200 rpm     
  Load(2)  OFF  10  > 3 to 5  1700 ± 50 rpm  1600 rpm     
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(1) N = Normal, M = Monitor, A = Action
(2) Two pump main relief (Boom UP)

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, UENR6195, "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)  Machine Type  Travel Speed  New  Rebuild  Service Limit  Actual  Comments 
Travel Time (seconds) 
  GF  HIGH  Forward  17.5 or less  19.5 or less  21.5 or less     
  Reverse  
  LOW Forward  28.7 or less  32.0 or less  35.3 or less     
  Reverse  
  LL  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) 
  Travel Speed  New  Rebuild  Service Limit  Actual   
  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 (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

Machine Drift on a Slope - Check

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Table 9
"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 10
"Swing Speed and Overswing on Level Ground - Check" 
Status(1)  Description  New  Rebuild  Service Limit  Actual  Comments 
Overswing mm (inch) 
  Right Swing  1100 mm (43 inch)  1200 mm (47 inch)  1400 mm (55 inch)     
  Left Swing 
Swing Time(2) (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 a 180 degree swing operation

Swing Speed and Swing Drift on a Slope - Check

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Table 11
"Swing Speed and Swing Drift on a Slope - Check" 
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 12
"Cylinder Drift - Check (Loaded Bucket)" 
Status(1)  Description  New  Rebuild  Service Limit  Actual  Comments 
  Boom Cylinder  4.5 mm (0.18 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     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Cylinder Drift - Check (Empty Bucket)

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Table 13
"Cylinder Drift - Check (Empty Bucket)" 
Status(1)  Description  Cylinder Position  Drift Direction  New  Rebuild  Service Limit  Actual  Comments 
  Boom Cylinder  Extend  Boom Up  4.5 mm (0.18 inch) or less  12.0 mm (0.47 inch) or less  24.0 mm (0.94 inch) or less     
  Stick Cylinder  Extend  Stick Out  25.0 mm (0.98 inch) or less  30.0 mm (1.18 inch) or less  40.0 mm (1.57 inch) or less     
  Retract Stick In  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  Extend  Bucket Closed  20.0 mm (0.79 inch) or less  25.0 mm (0.98 inch) or less  25.0 mm (0.98 inch) or less     
  Retract Bucket Open  10.0 mm (0.39 inch) or less  15.0 mm (0.59 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 14
"Cylinder Speed - Check" 
Cylinder Operating Speed (seconds) (without attachment) 
Status(1)  Description  Cylinder Position  New  Rebuild  Service Limit  Actual  Comments 
  Boom  Extension  4.0 ± 0.5  4.4 or less  4.8 or less     
  Retraction 3.4 ± 0.5 3.8 or less  4.2 or less     
  Stick  Extension  2.4 ± 0.3  2.9 or less  3.4 or less     
  Retraction 3.4 ± 0.5 3.6 or less  4.0 or less     
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(1) N = Normal, M = Monitor, A = Action

Pilot System

Reference: Refer to Testing & Adjusting, UENR6195 for more detail on the following tests.

Relief Valve (Pilot) - Test and Adjust

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Table 15
"Relief Valve (Pilot) - Test and Adjust" 
  Machine Settings  Engine Speed 
Speed Dial "10"
AEC switch OFF
Status(1)  Description  Specification  Actual  Comments 
  Pilot relief valve pressure  4100 ± 200 kPa (595 ± 29 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Accumulator (Pilot) - Test and Charge

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Table 16
"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

Main Control Valve

Reference: Refer to Testing & Adjusting, UENR6195 for more detail on the following tests.

Relief Valve (Main) - Test and Adjust

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Table 17
"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) (If Equipped)  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 18
"Relief Valve (Line) - Test and Adjust" 
Status(1)  Attachment  Cylinder  Cylinder Position  Relief Pressure Setting  Actual  Comments 
    Boom  Head End  38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Rod End 17000 ± 500 kPa (2466 ± 73 psi)    
  Stick Head End  37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)     
  Rod End 38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Harvester  Bucket (Rotator)  CLOCKWISE  11700 ± 500 kPa (1697 ± 73 psi)     
  COUNTERCLOCKWISE  
  Auxiliary Harvester (Upper)  29000 ± 500 kPa (4206 ± 73 psi)     
  Grapple Saw  Bucket (Grapple)  OPEN  13800 ± 500 kPa (2002 ± 73 psi)     
  CLOSE 17200 ± 500 kPa (2495 ± 73 psi)    
  Rotator (Attachment Control Valve) CLOCKWISE  11700 ± 500 kPa (1697 ± 73 psi)     
  COUNTERCLOCKWISE  
  Ground Saw Slasher  Bucket (Grapple)  OPEN  13800 ± 500 kPa (2002 ± 73 psi)     
  CLOSE 17200 ± 500 kPa (2495 ± 73 psi)    
  Rotator (Auxiliary Control Valve) CLOCKWISE  11700 ± 500 kPa (1697 ± 73 psi)     
  COUNTERCLOCKWISE  
  Saw and Bar DOWN 23400 ± 500 kPa (3394 ± 73 psi)     
  Bar UP 10300 ± 500 kPa (1494 ± 73 psi)     
  Heavy Duty Stick  Boom  Head End  38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Rod End 37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)    
  Stick Head End  37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)     
  Rod End 38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Bucket Head End  37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)     
  Rod End  
  Harvester Front  Boom  Head End  38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Rod End 37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)    
  Stick Head End  37000 + 1500 - 500 kPa (5366 + 218 - 73 psi)     
  Rod End 38000 + 1500 - 500 kPa (5512 + 218 - 73 psi)     
  Bucket (Rotator) Head End  13100 ± 700 kPa (1900 ± 102 psi)     
  Rod End  
  Attachment Upper  37000 ± 1000 kPa (5366 ± 145 psi)     
  Auxiliary Upper  28000 ± 500 kPa (4061 ± 73 psi)     
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(1) N = Normal, M = Monitor, A = Action

Swing System

Reference: Refer to Testing & Adjusting, UENR6195 for more detail on the following tests.

Relief Valve (Swing) - Test and Adjust

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Table 19
"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  31000 + 1000 -1500 kPa (4500 + 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 20
"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, UENR6195 for more detail on the following tests.

Relief Valve (Crossover) - Test and Adjust

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Table 21
"Relief Valve (Crossover) - Test and Adjust" 
Status(1)  Description  Direction  Machine Settings  Specification  Actual  Comments 
  Right Travel  Forward  Engine speed dial "10"
AEC switch OFF 		 37000 ± 500 kPa (5366 ± 73 psi)     
  Reverse  
  Left Travel  Forward   
  Reverse  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

S.O.S

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Table 22
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

Caterpillar Information System:

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