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D6T Track-Type Tractor TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar


D6T Track-Type Tractor TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

D6T 2B3
Track-Type Tractor
D6T (S/N: 2D21-UP; 2B31-UP; MB51-UP; AK71-UP; MH71-UP; 7C91-UP; JML1-UP; JNM1-UP; K1R1-UP; HYT1-UP; NDY1-UP; SGZ1-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 to prevent stress on battery connections (terminals).    Refer to Operation and Maintenance Manual, M0066120, "Battery - Inspect". 
  Battery Test  12.4 VDC or more    Refer to Testing and Adjusting, UENR3402, "Battery - Test". 
  Charging System Test  28 VDC ± 1 VDC    Refer to Testing and Adjusting, UENR3402, "Charging System - Test".
Refer to Special Instruction, REHS0354, "Charging System Troubleshooting". 
  Electric Starting System Test      Refer to Testing and Adjusting, UENR3402, "Electric Starting System - Test". 
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(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      Auto adjust belt tensioner 
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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 
  Fuel Pressure  593 to 951 kPa (86 to 138 psi)     
  Fuel System Verification Test      Cat® Electronic Technician (Cat ET) Service Tool 
  Fuel System Functional Test      Cat® Electronic Technician (Cat ET) Service Tool 
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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 
  Engine Oil Pressure at Low Idle  103 to 400 kPa (15 to 58 0 psi)     
  Engine Oil Pressure at High Idle  248 to 600 kPa (36 to 87 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  800 ± 10 RPM     
  Engine Speed at High Idle  1900 ± 10 RPM     
  Torque Converter Stall Test Engine RPM  1486 ± 30 RPM     
  Cylinder Cutout Test      Use Cat® Electronic Technician (Cat ET) Service Tool 
  Engine Crankcase Pressure (Blowby)      Measured at operating temperatures during a stall. Refer to NEHS1087. 
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(1) N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

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Table 6
Status(1)  Description  Specification  Actual  Comments 
  Boost Pressure at Torque Converter Stall Test Engine RPM  14 to 172 kPa (2 to 25 psi)     
  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, M0064234 for more detail on the following tests.

Operational Checks

Tests for Cycle Times

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Table 7
Status(1)  Description  Specification  Actual  Comments 
  Bulldozer Lift Cylinder (Move the blade from the ground to the fully raised position) at oil temperature of 65° ± 3°C (149° ± 37°F)  2.3 to 2.8 seconds     
  Bulldozer Tilt Cylinder (Move the bulldozer blade from TILT RIGHT to TILT LEFT) at oil temperature of 65° ± 3°C (149° ± 37°F)  1.2 to 1.8 seconds     
  Bulldozer Tilt Cylinder (Move the bulldozer blade from TILT LEFT to TILT RIGHT) at oil temperature of 65° ± 3°C (149° ± 37°F)  1.0 to 1.5 seconds     
  Bulldozer Angle Cylinder (Move the Blade Fully angled right to fully angled left) at oil temperature of 65° ± 3°C (149° ± 37°F)  2.5 to 2.7 seconds     
  Ripper Lift Cylinder (Move the ripper to the fully raised position from the fully lowered position) at oil temperature of 65° ± 3°C (149° ± 37°F)  2.0 seconds     
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(1) N = Normal, M = Monitor, A = Action

Drift Tests for Bulldozer Lift Cylinders

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Table 8
Status(1)  Description  Specification  Actual  Comments 
  Drift Tests for Bulldozer Lift Cylinders  Minutes until maximum permissible drift of 38.0 mm (1.50 inch) at oil temperature of 28° to 48°C (82° to 119°F) is 5.0 mins     
Minutes until maximum permissible drift of 38.0 mm (1.50 inch) at oil temperature of 49° to 68°C (120° to 155°F) is 2.7 mins  
Minutes until maximum permissible drift of 38.0 mm (1.50 inch) at oil temperature of 69° to 88°C (156° to 190°F) is 1.7 mins  
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(1) N = Normal, M = Monitor, A = Action

Drift Tests for Bulldozer Tilt Cylinder

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Table 9
Status(1)  Description  Specification  Actual  Comments 
  Drift Tests for Bulldozer Tilt Cylinder  Minutes until maximum permissible drift of 11.2 mm (0.44 inch) at oil temperature of 38° to 48°C (100° to 119°F) is 5.0 mins     
Minutes until maximum permissible drift of 11.2 mm (0.44 inch) at oil temperature of 49° to 66°C (120° to 150°F) is 2.7 mins  
Minutes until maximum permissible drift of 11.2 mm (0.44 inch) at oil temperature of above 66°C (150°F) is 1.7 mins  
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(1) N = Normal, M = Monitor, A = Action

Drift Tests for Ripper Lift Cylinder

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Table 10
Status(1)  Description  Specification  Actual  Comments 
  Drift Tests for Ripper Lift Cylinder  Minutes until maximum permissible drift of 9.6 mm (0.38 inch) at oil temperature of 38° to 48°C (100° to 119°F) is 5.0 mins     
Minutes until maximum permissible drift of 9.6 mm (0.38 inch) at oil temperature of 49° to 66°C (120° to 150°F) is 2.7 mins  
Minutes until maximum permissible drift of 9.6 mm (0.38 inch) at oil temperature of above 66°C (150°F) is 1.7 mins  
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(1) N = Normal, M = Monitor, A = Action

Steering Operation Checks

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Table 11
Status(1)  Description  Specification  Actual  Comments 
  Steering Turn Diameter Check - Full Steer Left in first gear forward and HIGH IDLE with the blade raised and in the HOLD position (Outside of Shoe to Outside of Shoe)  XL 4.0 ± 0.5 m (13.1 ± 1.6 ft)
XW 4.5 ± 0.5 m (14.8 ± 1.6 ft)
LGP 5.1 ± 0.5 m (16.7 ± 1.6 ft)
XL VPAT 4.5 ± 0.5 m (14.8 ± 1.6 ft)
XW VPAT 4.9 ± 0.5 m (16.1± 1.6 ft)
LGP VPAT 5.0 ± 0.5 m (16.4 ± 1.6 ft) 		    
  Steering Turn Diameter Check - Full Steer Right in first gear forward and HIGH IDLE with the blade raised and in the HOLD position (Outside of Shoe to Outside of Shoe)  XL 4.0 ± 0.5 m (13.1 ± 1.6 ft)
XW 4.5 ± 0.5 m (14.8 ± 1.6 ft)
LGP 5.1 ± 0.5 m (16.7 ± 1.6 ft)
XL VPAT 4.5 ± 0.5 m (14.8 ± 1.6 ft)
XW VPAT 4.9 ± 0.5 m (16.1± 1.6 ft)
LGP VPAT 5.0 ± 0.5 m (16.4 ± 1.6 ft) 		    
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(1) N = Normal, M = Monitor, A = Action

Hydraulic System

Reference: Refer to Testing & Adjusting, M0064234 for more detail on the following tests.

Piston Pump (Implement) - Test and Adjust

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Table 12
Status(1)  Description  Specification  Actual  Comments 
Standard(2) VPAT Blade(3)
  Low-Pressure Standby Test at HIGH IDLE at Pressure port (HA)  3600 kPa (520 psi) maximum  3600 kPa (520 psi) maximum     
  High-Pressure Cutoff Test at HIGH IDLE at Pressure port (HA)  19300 ± 350 kPa (2800 ± 50 psi)  21550 ± 350 kPa (3125 ± 50 psi)     
  Margin Pressure Test at HIGH IDLE  2100 ± 100 kPa (305 ± 15 psi)  2100 ± 100 kPa (305 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action
(2) Machines that are equipped with bulldozer lift and bulldozer tilt or machines that are equipped with bulldozer lift, bulldozer tilt, and a ripper
(3) Machines that are equipped with a PAT blade and winch

Accumulator (Pilot) - Test and Charge

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Table 13
Status(1)  Description  Specification  Actual  Comments 
  Accumulator Nitrogen Charge Pressure at HIGH IDLE  1050 ± 100 kPa (152 ± 15 psi)    Refer to M0064234 
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(1) N = Normal, M = Monitor, A = Action

Piston Pump (Steering) - Test and Adjust

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Table 14
Status(1)  Description  Specification  Actual  Comments 
  Crossover Relief Pressure  46000 ± 1000 kPa (6672 ± 145 psi)     
  Pressure Override (POR) (HC)  42000 ± 700 kPa (6092 ± 102 psi)    1850 RPM 
  Pressure Override (POR) (HD)  42000 ± 700 kPa (6092 ± 102 psi)    1850 RPM 
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Steering) - Test and Adjust - Charge Pressure

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Table 15
Status(1)  Description  Specification  Actual  Comments 
  Steering Relief Valve Charge Pressure at HIGH IDLE at Pressure Port (H)  2500 ± 100 kPa (363 ± 15 psi)    1850 RPM 
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(1) N = Normal, M = Monitor, A = Action

Hydraulic Fan Speed (On Demand) - Test and Adjust

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Table 16
Status(1)  Description  Specification  Actual  Comments 
  Maximum  1550 to 2000 RPM     
  Minimum  450 to 700 RPM     
  Clip Speed  1350 ± 50 RPM     
  Low Fan Speed (If Equipped)  125 ± 50 RPM     
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(1) N = Normal, M = Monitor, A = Action

Power Train System

Reference: Refer to Testing & Adjusting, M0064234 for more detail on the following tests.

Transmission Clutch Pressure - Test

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Table 17
Status(1)  Description  Specification  Actual  Comments 
  Clutch 1  2758 ± 105 kPa (400 ± 15 psi)     
  Clutch 2  2758 ± 105 kPa (400 ± 15 psi)     
  Clutch 3  2500 ± 105 kPa (362 ± 15 psi)     
  Clutch 4  2758 ± 105 kPa (400 ± 15 psi)     
  Clutch 5  2758 ± 105 kPa (400 ± 15 psi)     
  Clutch 6  2500 ± 105 kPa (362 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Brake Pressure - Test

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Table 18
Status(1)  Description  Specification  Actual  Comments 
  Low Idle at Pressure Tap (B1)  2350 ± 155 kPa (342 ± 22 psi)     
  Brake Pressure at Pressure Tap (B1) with the Parking Brake On or the Service Brakes Fully Engaged  70 kPa (10 psi) or less     
  Low Idle Right Final Drive Brake  2350 ± 155 kPa (342 ± 22 psi)     
  Low Idle Left Final Drive Brake  2350 ± 155 kPa (342 ± 22 psi)     
  High Idle Left Final Drive Lube  70 ± 30 kPa (10 ± 4 psi)     
  Low Idle Left Final Drive Lube  11 ± 9 kPa (1.6 ± 1.5 psi)     
  High Idle Right Final Drive Lube  55 ± 30 kPa (8 ± 4 psi)     
  Low Idle Right Final Drive Lube  7 ± 6 kPa (1.0 ± 1.0 psi)     
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Transmission) - Test and Adjust

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Table 19
Status(1)  Description  Specification  Actual  Comments 
  Low Idle (P)  2580 ± 105 kPa (375 ± 15 psi)     
  High Idle  2810 ± 135 kPa (408 ± 20psi)     
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Torque Converter Inlet) Pressure - Test and Adjust

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Table 20
Status(1)  Description  Specification  Actual  Comments 
  High Idle (M)  595 ± 100 kPa (87 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Torque Converter Outlet) Pressure - Test and Adjust

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Table 21
Status(1)  Description  Specification  Actual  Comments 
  High Idle THIRD SPEED FORWARD STALL at Pressure Port (N)  415 ± 90 kPa (60 ± 13 psi)     
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(1) N = Normal, M = Monitor, A = Action

Torque Converter Lockup Clutch Pressure - Test

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Table 22
Status(1)  Description  Specification  Actual  Comments 
  High Idle NeuTRAL  180 ± 50 kPa (26 ± 7 psi)     
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(1) N = Normal, M = Monitor, A = Action

Flywheel Lubrication Oil Pressure - Test

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Table 23
Status(1)  Description  Specification  Actual  Comments 
  High Idle (L2)  300 ± 105 kPa (44 ± 15 psi)     
  Low Idle (L2)  205 ± 70 kPa (30 ± 10 psi)     
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(1) N = Normal, M = Monitor, A = Action

Transmission Lubrication Oil Pressure - Test

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Table 24
Status(1)  Description  Specification  Actual  Comments 
  High Idle (L1) (Lube Control Disabled)  180 ± 35 kPa (26 ± 5 psi)     
  High Idle (L1) (Lube Control Enabled)  125 ± 35 kPa (18 ± 5psi)     
  Low Idle (L1) (Brakes Disengaged)  16 ± 11 kPa (2.3 ± 1.5 psi)     
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(1) N = Normal, M = Monitor, A = Action

S.O.S

Reference: Refer to Operation and Maintenance Manual, M0066120, "Maintenance Interval Schedule" for more detail on the following S.O.S.

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Table 25
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

Caterpillar Information System:

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