D6K2 Track-Type Tractor TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar

Track-Type Tractor

D6K2 (S/N: EL71-UP; MGM1-UP; DFR1-UP; JTR1-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 effectively intervene 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

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	12.4 VDC or more		Refer to Special Instruction, SEHS7633, "Battery Test Procedure"
	Charging System Test	28 ± 1 VDC		Refer to Special Instruction, SEHS0354, "Charging System Troubleshooting"
	Electric Starting System Test	14 ± 2 VDC at −23° C (−10° F) to −7° C (19° F)		Refer to Testing and Adjusting, UENR4515, "Electric Starting System - Test".
		16 ± 2 VDC at −7° C (19° F) to 10° C (50° F)
		20 V ± 4 VDC at 10° C (50° F) to 27° C (80° F)

(1)	N = Normal, M = Monitor, A = Action

Engine

Cooling System

Table 2

Status(1)	Description	Specification	Actual	Comments
	Radiator Pressure Relief (Radiator Cap)(2)
	Freezing Point of Engine Coolant
	Conditioner Test of Engine Coolant
	Belt Tension			Refer to Operation and Maintenance Manual.
	Difference between the Upper and Lower Radiator Tank Temperatures

(1)	N = Normal, M = Monitor, A = Action
(2)	Test for the pressure that is listed on the cap.

Fuel System

Table 3

Status(1)	Description	Specification	Actual	Comments
	Fuel Pressure of the Low-Pressure Fuel System at Idle Speed	150 kPa (22 psi)
	Maximum Fuel Pressure of the High-Pressure Fuel System	200 MPa (29000 psi)

(1)	N = Normal, M = Monitor, A = Action

Lubrication System

Table 4

Status(1)	Description	Specification	Actual	Comments
	Minimum Engine Oil Pressure at Maximum Engine Speed of 2200 rpm	280 kPa (41 psi)

(1)	N = Normal, M = Monitor, A = Action

Basic Engine

Table 5

Status(1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	750 rpm
	Engine Speed at High Idle	2100 rpm
	Cylinder Cutout Test			Caterpillar Electronic Technician

(1)	N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

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)

(1)	N = Normal, M = Monitor, A = Action
(2)	Compare the exhaust temperature variance at each exhaust port.

Performance Checks

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Operational Checks

Cycle Times

Table 7

Status(1)	Description	Specification	Actual	Comments
	Bulldozer RAISE (ground level to maximum height)	2.0 ± 0.2 seconds
	Bulldozer LOWER (maximum height to ground level)	1.3 ± 0.2 seconds
	Bulldozer LOWER float (maximum height to ground level)	1.1 ± 0.2 seconds
	TILT (full retraction to full extension)	0.8 ± 0.2 seconds
	TILT (full extension to full retraction)	0.7 ± 0.2 seconds
	ANGLE (full left to full right)	2.0 ± 0.2 seconds
	Ripper RAISE (ground to maximum height)	2.0 ± 0.2 seconds
	Ripper LOWER (maximum height to ground)	2.5 ± 0.2 seconds
	Power Pitch (full retraction to full extension)	1.1 ± 0.2 seconds
	Power Pitch (full extension to full retraction)	1.1 ± 0.2 seconds

(1)	N = Normal, M = Monitor, A = Action

Drift

Table 8

Status(1)	Description	Beginning rod length	Rod length at 5 minutes	Specification	Actual	Comments
	Bulldozer Lift Cylinder Drift Test (Oil temperature of 28°C to 48°C (80°F to 120°F))			32 mm (1.3 inch)
	Bulldozer Tilt Cylinder Drift Test (Oil temperature of 28°C to 48°C (80°F to 120°F))			13 mm (0.5 inch)
	Ripper Cylinder Drift Test (Oil temperature of 28°C to 48°C (80°F to 120°F))			25 mm (1.0 inch)

(1)	N = Normal, M = Monitor, A = Action

Hydraulic System

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Hydraulic Pump - Test and Adjust

Table 9

Status(1)	Description	Specification	Actual	Comments
	High-Pressure Stall (R2) (High Idle Stall)	24750 ± 550 kPa (3590 ± 80 psi)
	Margin Pressure (R2 - R1) (Blade in motion)	1700 ± 200 kPa (247 ± 29 psi)

(1)	N = Normal, M = Monitor, A = Action

Power Train System

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Final Hydrostatic Speed - Test

Table 10

Status(1)	Description	Specification	Actual	Comments
	Forward Maximum Ground Speed	10 km/h (6 mph)
	Reverse Maximum Ground Speed	10 km/h (6 mph)

(1)	N = Normal, M = Monitor, A = Action

Table 11

Status(1)	Description	Specification	Actual	Comments
	Engine Speed	2100 ± 10 rpm
	Right Travel Forward Pressure (Cat ® ET)	9500 ± 2500 kPa (1378 ± 363 psi)
	Left Travel Forward Pressure (Cat ® ET)	9500 ± 2500 kPa (1378 ± 363 psi)
	Speed of right drive motor (Cat ® ET)	3400 ± 100 rpm
	Speed of left drive motor (Cat ® ET)	3400 ± 100 rpm
	Right Travel Reverse Pressure (Cat ® ET)	9500 ± 2500 kPa (1378 ± 363 psi)
	Left Travel Reverse Pressure (Cat ® ET)	9500 ± 2500 kPa (1378 ± 363 psi)
	Speed of right drive motor (Cat ® ET)	-3400 ± 100 rpm
	Speed of left drive motor (Cat ® ET)	-3400 ± 100 rpm

(1)	N = Normal, M = Monitor, A = Action

Charge Relief Valve - Test and Adjust

Table 12

Status(1)	Description	Specification	Actual	Comments
	Left Pump Charge Oil Pressure (1800 ± 100 RPM) (Neutral) (On Filter)	3050 ± 1500 kPa (442 ± 218 psi)

(1)	N = Normal, M = Monitor, A = Action

Crossover Relief Valve - Test and Adjust

Table 13

Status(1)	Description	Specification	Actual	Comments
	Engine Speed	2100 ± 100 RPM
	Left Travel Pressure (Forward) (Cat ® ET)	45000 ± 2000 kPa (6527 ± 290 psi)
	Right Travel Pressure (Forward) (Cat ® ET)	45000 ± 2000 kPa (6527 ± 290 psi)
	Left Travel Pressure (Reverse) (Cat ® ET)	45000 ± 2000 kPa (6527 ± 290 psi)
	Right Travel Pressure (Reverse) (Cat ® ET)	45000 ± 2000 kPa (6527 ± 290 psi)

(1)	N = Normal, M = Monitor, A = Action

Steering System

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Steering - Test

Forward Left Detent

Table 14

Status(1)	Description	Specification	Actual	Comments
	Engine speed	2100 ± 10 rpm
	Right Travel Forward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Left Travel Forward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Speed of the left drive motor	-1900 ± 200 rpm
	Speed of the right drive motor	1900 ± 200 rpm

(1)	N = Normal, M = Monitor, A = Action

Forward Right Detent

Table 15

Status(1)	Description	Specification	Actual	Comments
	Engine speed	2100 ± 10 rpm
	Right Travel Forward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Left Travel Forward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Speed of the left drive motor	1900 ± 200 rpm
	Speed of the right drive motor	-1900 ± 200 rpm

(1)	N = Normal, M = Monitor, A = Action

Reverse Left Detent

Table 16

Status(1)	Description	Specification	Actual	Comments
	Engine speed	2100 ± 10 rpm
	Left Travel Backward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Right Travel Backward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Speed of the left drive motor	1900 ± 200 rpm
	Speed of the right drive motor	-1900 ± 200 rpm

(1)	N = Normal, M = Monitor, A = Action

Reverse Right Detent

Table 17

Status(1)	Description	Specification	Actual	Comments
	Engine speed	2100 ± 10 rpm
	Left Travel Backward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Right Travel Backward Pressure	6750 ± 3250 kPa (979 ± 471 psi)
	Speed of the left drive motor	-1900 ± 200 rpm
	Speed of the right drive motor	1900 ± 200 rpm

(1)	N = Normal, M = Monitor, A = Action

Braking System

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Deceleration/Brake Pedal - Test

Table 18

Status(1)	Description	Specification	Actual	Comments
	Parking brake engaged at pressure tap (P8)	150 ± 150 kPa (22 ± 22 psi)
	Decelerator/brake pedal released (2100 ± 10 rpm) (P8)	2850 ± 200 kPa (413 ± 29 psi)
	Decelerator/brake pedal partially depressed (1400 ± 50 rpm) (P8)	2850 ± 200 kPa (413 ± 29 psi)
	Decelerator/brake pedal fully depressed (1400 ± 50 rpm) (P8)	150 ± 150 kPa (22 ± 22 psi)

(1)	N = Normal, M = Monitor, A = Action

Winch System

Reference: Refer to Testing & Adjusting, UENR4097, "Testing and Adjusting Section" for more detail on the following test.

Charge Relief Valve (Winch) - Test and Adjust

Table 19

Status(1)	Description	Specification	Actual	Comments
	Winch Pump Charge Oil Pressure (2100 ± 100 RPM) (Neutral) (On Filter)	2550 ± 250 kPa (370 ± 36 psi)

(1)	N = Normal, M = Monitor, A = Action

Crossover Relief Valve (Winch) - Test and Adjust

Table 20

Status(1)	Description	Specification	Actual	Comments
	Engine Speed	2100 ± 50 RPM
	Winch Motor Pressure (Reel In) (Cat ® ET)	44000 ± 1000 kPa (6380 ± 145 psi)
	Winch Motor Pressure (Reel Out) (Cat ® ET)	44000 ± 1000 kPa (6380 ± 145 psi)

(1)	N = Normal, M = Monitor, A = Action

Pressure Override Valve (Winch) - Test and Adjust

Table 21

Status(1)	Description	Specification	Actual	Comments
	Pressure Override Pressure (Full Reel In) (Cat ® ET)	41000 ± 1000 kPa (5950 ± 145 psi)
	Pressure Override Pressure (Full Reel Out) (Cat ® ET)	41000 ± 1000 kPa (5950 ± 145 psi)

(1)	N = Normal, M = Monitor, A = Action

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU9352, "Maintenance Interval Schedule" for more detail on the following S.O.S.

Table 22

Status(1)	Description	Obtain		Comments
	Engine Oil Sample	Every 250 Service Hours
	Engine Coolant Sample (Level I)	Every 500 Service Hours
	Engine Coolant Sample (Level II)	Initial 500 Service Hours Every Year
	Hydraulic Oil Sample	Every 500 Service Hours
	Final Drive Oil Sample	Every 500 Service Hours
	Winch	Every 500 Service Hours

(1)	N = Normal, M = Monitor, A = Action