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953K Track-Type Loader TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar


953K Track-Type Loader TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

953K LJT
Track-Type Loader
953K (S/N: LJT1-UP)

Introduction

Inspections are the most basic form of condition monitoring. They 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.

Creating an Electronic Copy

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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 in order to prevent stress on battery connections (terminals).    Refer to Operation and Maintenance Manual, SEBU8565, "Battery and Battery Cables". 
  Battery Test  12.4 VDC or more    Refer to Testing and Adjusting, UENR4467, "Battery - Test". 
  Charging System Test  12.5 VDC to 25 VDC    Refer to Testing and Adjusting, UENR4467, "Charging System - Test".
Refer to Special Instruction, REHS0354, "Charging System Troubleshooting". 
  Electric Starting System Test      Refer to Testing and Adjusting, UENR4467, "Electric Starting System - Test". 
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Engine

Cooling System

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Table 2
Status(1)  Description  Specification  Actual  Comments 
  Radiator Pressure Relief (Radiator Cap)(2)      Use 9S-8140 Pressurizing Pump to test the radiator pressure cap, 20 kPa (3 psi) more than the pressure marked on the cap. 
  Freezing Point of Engine Coolant       
  Conditioner Test of Engine Coolant       
  Belt Tension  534 N (120 lb) for new belts.
400 N (90 lb) for used belts. 		    
  Difference between the Upper Radiator Tank Temperature and Lower Radiator Tank Temperature       
  Jacket Water Inlet Temperature from Cooling System       
Show/hide table
(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  200 MPa (29008 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 Oil Pressure at the Maximum Engine Speed and at Normal Operating Temperature  315 kPa (46 psi)     
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(1) N = Normal, M = Monitor, A = Action

Basic Engine

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Table 5
Status(1)  Description  Specification  Actual  Comments 
  Engine Speed at Low Idle       
  Engine Speed at High Idle       
  Cylinder Cutout Test      Use Cat® Electronic Technician (Cat ET) Service Tool 
  Engine Crankcase Pressure (Blowby)       
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

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Table 6
Status(1)  Description  Specification  Actual  Comments 
  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)  -     
Show/hide table
(1) N = Normal, M = Monitor, A = Action
(2) Compare the exhaust temperature variance at each exhaust port.

Performance Checks

Reference: Refer to Testing & Adjusting, M0076290 for more detail on the following tests.

Operational Checks

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Table 7
Status(1)  Description  Specification  Actual  Comments 
  Lift Cylinder RAISE(Ground level to maximum height)  5.9 seconds     
  Power LOWER (Maximum height to ground level)  3.7 seconds     
  Float Lower (Maximum height to ground level)  3.0 seconds     
  DUMP at maximum height (Moving from TILT BACK to full DUMP)  1.3 seconds     
  TILT BACK at maximum height (Moving from full DUMP to full TILT BACK)  2.1 seconds     
  RAISE (Ground level to maximum height)  1.4 seconds     
  LOWER (maximum height to ground level)  1.8 seconds     
  OPEN (from full CLOSE to full OPEN  1.6 seconds     
  CLOSE (from full OPEN to full CLOSE  2.0 seconds     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Cylinder Drift Test

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Table 8
Status(1)  Description  Specification  Actual  Comments 
  Lift Cylinders Drift  Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 38° ± 3°C (68° ± 37 °F) is 5.0 mins     
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 49 °± 3 °C (120 ° ± 37 °F) is 3.1 mins  
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 66 ° ± 3 °C (150 ° ± 37 °F) is 1.7 mins  
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 82 ° ± 3 °C (180 ° ± 37 °F) is 1.1 mins  
  Tilt Cylinder Drift  Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 38 ° ± 3 °C (100 ° ± 37 °F) is 5.0 mins     
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 49 ° ± 3 °C (120 ° ± 37 °F) is 3.1 mins  
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 66 ° ± 3 °C (150 ° ± 37 °F) is 1.7 mins  
Minutes until Maximum Allowable drift 8.6 mm (0.34 inch) at oil temperature of 82 ° ± 3 °C (180 ° ± 37 °F) is 1.1 mins  
  Ripper Cylinder Drift  Minutes until maximum Allowable drift of 6.0 mm (0.24 inch) at oil temperature of 38 °± 3 °C (100 ° ± 37 °F) is 5.0 mins     
Minutes until maximum Allowable drift of 6.0 mm (0.24 inch) at oil temperature of 49 °± 3 °C (120 ° ± 37 °F) is 3.1 mins  
Minutes until maximum Allowable drift of 6.0 mm (0.24 inch) at oil temperature of above 66 ° ± 3 °C (150 ° ± 37 °F) is 1.7 mins  
Minutes until Maximum Allowable drift 6.0 mm (0.24 inch) at oil temperature of 82 ° ± 3 °C (180 ° ± 37 °F) is 1.1 mins  
  Drift For Multipurpose Bucket Cylinder  Minutes until maximum Allowable drift of 8.0 mm (0.32 inch) at oil temperature of 38 ° ± 3 °C (100 ° ± 37 °F) is 5.0 mins     
Minutes until maximum Allowable drift of 8.0 mm (0.32 inch) at oil temperature of 49 ° ± 3 °C (120 ° ± 37 °F) is 3.1 mins  
Minutes until maximum Allowable drift of 8.0 mm (0.32 inch) at oil temperature of above 66 ° ± 3 °C (150 ° ± 37 °F) is 1.7 mins  
Minutes until Maximum Allowable drift of 8.0 mm (0.32 inch) at oil temperature of 82 ° ± 3 °C (180 ° ± 37 °F) is 1.1 mins  
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(1) N = Normal, M = Monitor, A = Action

Hydraulic System

Reference: Refer to Testing & Adjusting, M0076290 for more detail on the following tests.

Hydraulic Pump - Test and Adjust

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Table 9
Status(1)  Description  Specification  Actual  Comments 
  Margin Pressure  2000 ± 100 kPa (290 ± 15 psi)     
  Pump Discharge Pressure  28170 ± 335 kPa (4086 ± 49 psi)     
  Load Sensing Pressure  26170 ± 175 kPa (3796 ± 25 psi)     
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(1) N = Normal, M = Monitor, A = Action

Accumulator (Pilot) - Test and Charge

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Table 10
Status(1)  Description  Specification  Actual  Comments 
  Accumulator Charge Pressure at HIGH IDLE  3200 ± 1000 kPa (464 ± 145 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Steering System

Reference: Refer to Testing & Adjusting, M0076290 for more detail on the following tests.

Steering - Test (Joystick Steering (C- Steer Configuration))

Steering Test (Joystick Steering (C- Steer Configuration)) in the Forward Position

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Table 11
Status(1)  Description  Specification  Actual  Comments 
  Steering Control Lever Fully To The Left And The Transmission Control Lever In The Full FORWARD Position  Engine Speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
Speed of the left drive motor is -1760 ± 100 RPM  
Speed of the right drive motor is 3060 ± 100 RPM  
  Steering Control Lever Fully To The Right And The Transmission Control Lever In The Full FORWARD Position  Engine Speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
Speed of the left drive motor is 3060 ± 100 RPM  
Speed of the right drive motor is -1760 ± 100 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

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Table 12
Status(1)  Description  Specification  Actual  Comments 
  Steering Control Lever Fully To The Left And The Transmission Control Lever In The Full REVERSE Position  Engine Speed is 1800 ± 100 RPM     
Right Travel BACKWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
LEFT travel BACKWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
Speed of the left drive motor is - 3060 ± 100 RPM  
Speed of the right drive motor is 1760 ± 100 RPM  
  Steering Control Lever Fully To The Right And The Transmission Control Lever In The Full REVERSE Position  Engine Speed is 1800 ± 100 RPM     
Right Travel BACKWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
LEFT travel BACKWARD Pressure is 5000 ± 2500 kPa (725 ± 363 psi)  
Speed of the left drive motor is 1760 ± 100 RPM  
Speed of the right drive motor is - 3060 ± 100 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Steering - Test (Pedal Steering Configuration)

Steering Test (Pedal Steering Configuration) in the FORWARD Position

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Table 13
Status(1)  Description  Specification  Actual  Comments 
  Fully Depress the Left steering pedal and the Transmission Control Lever in the Full FORWARD position  Engine speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the left drive motor is - 1760 ± 50 RPM  
Speed of the right drive motor is 3060 ± 50 RPM  
  Fully Depress the Right Steering Pedal and the Transmission Control Lever in the Full FORWARD Position  Engine speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the left drive motor is 3060 ± 50 RPM  
Speed of the right drive motor is - 1760 ± 50 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Steering Test (Pedal Steering Configuration) in the REVERSE Position

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Table 14
Status(1)  Description  Specification  Actual  Comments 
  Fully Depress the Left steering pedal and the Transmission Control Lever in the Full REVERSE position  Engine speed is 1800 ± 100 RPM     
Right Travel BACKWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel BACKWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the right drive motor is 1760 ± 50 RPM  
Speed of the left drive motor is - 3060 ± 50 RPM  
  Fully Depress the Right Steering Pedal and the Transmission Control Lever in the Full REVERSE Position  Engine speed is 1800 ± 100 RPM     
Right Travel BACKWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel BACKWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the right drive motor is - 3060 ± 50 RPM  
Speed of the left drive motor is 1760 ± 50 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Steering - Test (Joystick Steering (S- Steer Configuration))

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Table 15
Status(1)  Description  Specification  Actual  Comments 
  Transmission Control Lever in the full LEFT position and the Transmission Control Lever in the NEUTRAL position  Engine speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the right drive motor is 1830 ± 100 RPM  
Speed of the left drive motor is - 1830 ± 100 RPM  
  Transmission Control Lever in the full RIGHT position and the Transmission Control Lever in the NEUTRAL position  Engine speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
LEFT travel FORWARD Pressure is 5000 ± 2000 kPa (725 ± 290 psi)  
Speed of the right drive motor is - 1830 ± 100 RPM  
Speed of the left drive motor is 1830 ± 100 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Charge Relief Valve - Test and Adjust

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Table 16
Status(1)  Description  Specification  Actual  Comments 
  Charge oil pressure for the Left Hystat Pump (P5) (Engine speed 1800 ± 100 RPM)  3200 ± 150 kPa (464 ± 22 psi)     
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(1) N = Normal, M = Monitor, A = Action

Crossover Relief Valve - Test and Adjust (Hydrostatic Stall)

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Table 17
Status(1)  Description  Specification  Actual  Comments 
  Crossover Relief Valve Forward Test  Engine speed is 1800 ± 100 RPM     
Left travel FORWARD pressure is 44650 ± 2000 kPa (6476 ± 290 psi)  
Right travel FORWARD pressure is 44650 ± 2000 kPa (6476 ± 290 psi)  
  Crossover Relief Valve Reverse Test  Engine speed is 1800 ± 100 RPM     
Left travel REVERSE pressure is 44650 ± 2000 kPa (6476 ± 290 psi)  
Right travel REVERSE pressure is 44650 ± 2000 kPa (6476 ± 290 psi)  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Brake Pressure - Test

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Table 18
Status(1)  Description  Specification  Actual  Comments 
  Parking Brake Engaged  100 ± 100 kPa (15 ± 15 psi)     
  Brake Pedal Released  3200 ± 100 kPa (464 ± 15 psi)     
  Brake Pedal Partially Depressed  3200 ± 100 kPa (464 ± 15 psi)     
  Brake Pedal fully Depressed  100 ± 100 kPa (15 ± 15 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Final Hydrostatic Speed - Test

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Table 19
Status(1)  Description  Specification  Actual  Comments 
  Hydrostatic Speed Test in FORWARD Position  Engine Speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 7000 ± 3000 kPa (1015 ± 435 psi)  
Left Travel FORWARD Pressure is 7000 ± 3000 kPa (1015 ± 435 psi)  
Speed of the left drive motor is 3030 ± 50 RPM  
Speed of the right drive motor is 3030 ± 50 RPM  
  Hydrostatic Speed Test in REVERSE Position  Engine Speed is 1800 ± 100 RPM     
Right Travel FORWARD Pressure is 7000 ± 3000 kPa (1015 ± 435 psi)  
Left Travel FORWARD Pressure is 7000 ± 3000 kPa (1015 ± 435 psi)  
Speed of the left drive motor is -3030 ± 50 RPM  
Speed of the right drive motor is -3030 ± 50 RPM  
Show/hide table
(1) N = Normal, M = Monitor, A = Action

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU8565, "Maintenance Interval Schedule" for more detail on the following S.O.S.

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Table 20
Status(1)  Description  Obtain  Comments 
  Engine Oil Sample     
  Engine Coolant Sample (Level I)     
  Engine Coolant Sample (Level II)     
  Hydraulic Oil Sample     
  Transmission Oil Sample     
  Rear Right Final Drive Oil Sample     
  Rear Left Final Drive Oil Sample     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

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