D6N Track-Type Tractor TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar

Track-Type Tractor

D6N (S/N: PBA1-UP; PER1-UP)

Introduction

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

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

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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, REHS0354, "Charging System Troubleshooting".
	Electric Starting System Test	12 VDC to 16 VDC at −23° C (−10° F) to −7° C (19° F)		Refer to Systems Operation Testing and Adjusting, KENR9248, "Electric Starting System - Test".
		14 VDC to 18 VDC at −7° C (19° F) to 10° C (50° F)
		16 VDC to 24 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
	Jacket Water Outlet Temperature
	Aftercooler Water Outlet Temperature
	Jacket Water Inlet Temperature from Cooling System
	Oil Cooler Water Outlet Temperature

(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	150 kPa (22 psi)
	Fuel Pressure of the High-Pressure Fuel System	200 MPa (29000 psi)
	Fuel Filter Differential Pressure	Enter Value
	Fuel Ratio Control	Enter Value

(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	315 kPa (45 psi)

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

Basic Engine

Table 5

Status(1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	900 RPM
	Engine Speed at High Idle	2000 RPM
	Torque Converter Stall Test Engine RPM	1935 ± 70 RPM
	Cylinder Cutout Test			Cat® Electronic Technician (Cat ET) Service Tool
	Engine Crankcase Pressure (Blowby)

(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)
	Cylinder # 5 Exhaust Temperature(2)
	Cylinder # 6 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, UENR0057, "Hydraulic Systems" for more detail on the following test.

Operational Checks

Cycle Times

Table 7

Status(1)	Description	Specification	Actual	Comments
	Blade RAISE (Ground Level to Maximum Height)	2.7 ± 0.2 seconds
	Blade LOWER (Maximum Height to Ground Level)	1.6 ± 0.2 seconds
	Blade LOWER float (Maximum Height to Ground Level)	1.5 ± 0.2 seconds
	Tilt (Right to Left)	1.3 ± 0.2 seconds
	Tilt (Left to Right)	1.3 ± 0.2 seconds
	Angle (Left to Right)	3.4 ± 0.2 seconds
	Ripper RAISE (Ground to Maximum Height)	2.4 ± 0.2 seconds
	Ripper LOWER (Ground to Maximum Height)	2.0 ± 0.2 seconds

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

Drift

Table 8

Status(1)	Description	Specification	Actual	Comments
	Bulldozer Lift Cylinder Drift Test	32 mm (1.3 inch) Maximum at 38° C (100° F) to 49° C (120° F) for 5 minutes
		32 mm (1.3 inch) Maximum at 49° C (120° F) to 66° C (150° F) for 2.7 minutes
		32 mm (1.3 inch) Maximum above 66° C (150° F) for 1.7 minutes
	Bulldozer Tilt Cylinder Drift Test	13 mm (0.5 inch) Maximum at 38° C (100 ° F) to 49° C (120° F) for 5 minutes
		13 mm (0.5 inch) Maximum at 49° C (120° F) to 66° C (150° F) for 2.7 minutes
		131 mm (0.5 inch) Maximum above 66° C (150° F) for 1.7 minutes
	Ripper Lift Cylinder Drift Test	25 mm (1.0 inch) Maximum at 38° C (100 ° F) to 49° C (120° F) for 5 minutes
		25 mm (1.0 inch) Maximum at 48° C (120° F) to 66° C (150° F) for 2.7 minutes
		25 mm (1.0 inch) Maximum above 66° C (150° F) for 1.7 minutes

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

Hydraulic System

Reference: Refer to Testing & Adjusting, UENR0057, "Hydraulic Systems" for more detail on the following test.

Proportional Priority Pressure Compensation System - Test

Table 9

Status(1)	Description	Specification	Actual	Comments
	Ripper (if equipped) (R5) (System Stalled)	25210 ± 450 kPa (3655 ± 65 psi)
	Angle (R5) (System Stalled)	25210 ± 450 kPa (3655 ± 65 psi)
	Tilt (R5) (System Stalled)	25210 ± 450 kPa (3655 ± 65 psi)
	Lift (R5) (System Stalled)	25210 ± 450 kPa (3655 ± 65 psi)

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

Piston Pump (Implement) - Test & Adjust

Table 10

Status(1)	Description	Specification	Actual	Comments
	Load Sensing Pressure (at Stall)	22650 ± 250 kPa (3285 ± 36 psi)
	High-Pressure Stall	25210 ± 450 kPa (3655 ± 65 psi)
	Margin Pressure	1700 ± 100 kPa (247 ± 15 psi)

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

Accumulator (Pilot) - Test and Adjust

Table 11

Status(1)	Description	Specification	Actual	Comments
	Accumulator Charge Pressure at HIGH IDLE	3300 ± 140 kPa (478 ± 20 psi)

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

Power Train System

Reference: Refer to Testing & Adjusting, UENR0054, "Power Train System" for more detail on the following test.

Transmission Clutch Pressure - Test

Table 12

Status(1)	Description	Specification	Actual	Comments
	Clutch Engagement at Relief Pressure Setting of the Transmission No. 1 Clutch (Low Idle)	2425 ± 125 kPa (352 ± 18 psi)
	Clutch Engagement at Relief Pressure Setting of the Transmission No. 2 Clutch (Low Idle)	2425 ± 125 kPa (352 ± 18 psi)
	Clutch Engagement at Relief Pressure Setting of the Transmission No. 3 Clutch (Low Idle)	2425 ± 125 kPa (352 ± 18 psi)
	Clutch Engagement at Relief Pressure Setting of the Transmission No. 4 Clutch (Low Idle)	2425 ± 125 kPa (352 ± 18 psi)
	Clutch Engagement at Relief Pressure Setting of the Transmission No. 5 Clutch (Low Idle)	2241 ± 200 kPa (325 ± 29 psi)

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

Relief Valve (Transmission) - Test and Adjust

Table 13

Status(1)	Description	Specification	Actual	Comments
	High Idle	2625 ± 150 kPa (380 ± 22 psi)

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

Relief Valve (Torque Converter Inlet) Pressure - Test

Table 14

Status(1)	Description	Specification	Actual	Comments
	Torque Converter Inlet Relief Valve (Cold Oil Start-up) at High Idle	≤ 895 kPa (130 psi)
	Torque Converter Inlet Relief Valve (Normal Operating Temperatures) at High Idle	450 ± 100 kPa (65 ± 15 psi)

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

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

Table 15

Status(1)	Description	Specification	Actual	Comments
	Torque Converter Outlet Relief Valve (High Idle)	410 ± 50 kPa (60 ± 7.5 psi)

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

Transmission Lubrication Oil Pressure - Test

Table 16

Status(1)	Description	Specification	Actual	Comments
	Transmission Lubrication (High Idle)	250 ± 50 kPa (36 ± 7 psi)
	Transmission Lubrication (Low Idle)	> 12 kPa (2 psi)

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

Steering System

Reference: Refer to Testing & Adjusting, UENR0057, "Steering System" for more detail on the following test.

Steering Hydraulic Circuit - Test

Table 17

Status(1)	Description	Specification	Actual	Comments
	Right Steer Stall Pressure (High Idle)	45300 ± 1140 kPa (6570 ± 165 psi)
	Left Steer Stall Pressure (High Idle)	45300 ± 1140 kPa (6570 ± 165 psi)

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

Relief Valve (Charge) - Test and Adjust

Table 18

Status(1)	Description	Specification	Actual	Comments
	Steering Charge Pressure (High Idle)	3300 ± 140 kPa (478 ± 20 psi)

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

Case Pressure (Steering Pump) - Check

Table 19

Status(1)	Description	Specification	Actual	Comments
	Steering Pump Case Pressure at HIGH IDLE	40 ± 25 kPa (6 ± 4 psi)

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

Braking System

Reference: Refer to Testing & Adjusting, UENR0054, "Braking System" for more detail on the following test.

Brake Pressure - Test and Adjust

Table 20

Status(1)	Description	Specification	Actual	Comments
	Brake Pressure with All Brakes Released (High Idle)	2450 ± 150 kPa (355 ± 22 psi)
	Brake Pressure with All Brakes Released (Low Idle)	2250 ± 150 kPa (326 ± 22 psi)
	Brake Pressure with Parking Brake On or the Service Brakes Fully Engaged (Low Idle)	< 70 kPa (10 psi)
	Right Brake Lube Pressure (High Idle)	60 ± 25 kPa (9 ± 4 psi)
	Left Brake Lube Pressure (High Idle)	75 ± 25 kPa (11 ± 4 psi)

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

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU8594, "Maintenance Interval Schedule" for more detail on performing S.0.S samples.

Table 21

Status(1)	Description	Obtain		Comments
	Engine Oil Sample
	Engine Coolant Sample (Level II)
	Hydraulic Oil Sample
	Transmission Oil Sample
	Front Right Final Drive Oil Sample
	Front Left Final Drive Oil Sample
	Rear Right Final Drive Oil Sample
	Rear Left Final Drive Oil Sample
	Front Axle/Diff Oil Sample
	Center Axle/Diff Oil Sample
	Rear Axle/Diff Oil Sample
	Transfer Case Oil Sample
	Brake Fluid Oil Sample
	Power Steering Oil Sample

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