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

Track-Type Tractor

D6T (S/N: CR31-UP; CG81-UP; SGA1-UP; RAD1-UP; STE1-UP; MEL1-UP; WRN1-UP; KMR1-UP; WES1-UP; SGT1-UP; TMY1-UP; HTZ1-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.

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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 in order to prevent stress on battery connections (terminals).		Refer to Operation and Maintenance Manual, SEBU9128, "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".

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

Engine

Cooling System

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

(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	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

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

Lubrication System

Table 4

Status(1)	Description	Specification	Actual	Comments
	Engine Oil Pressure at Low Idle	103 to 400 kPa (15 to 58 psi)
	Engine Oil Pressure at High Idle	248 to 600 kPa (36 to 87 psi)

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

Basic Engine

Table 5

Status(1)	Description	Specification	Actual	Comments
	Low Idle RPM	800 ± 10 rpm
	High Idle RPM	2010 ± 10 rpm
	Torque Converter Stall Test Engine RPM	1575 ± 30 rpm
	Cylinder Cutout Test	-		Cat® Electronic Technician (Cat ET) Service Tool
	Engine Crankcase Blow By Pressure			Measured at operating temperatures during a stall. Refer to NEHS1087.

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

Air Inlet and Exhaust System

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(1)	-
	Cylinder # 3 Exhaust Temperature(1)	-
	Cylinder # 4 Exhaust Temperature(1)	-
	Cylinder # 5 Exhaust Temperature(1)	-
	Cylinder # 6 Exhaust Temperature(1)	-

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

Performance Checks

Reference: Refer to Testing & Adjusting, UENR4056, "Testing and Adjusting Section" for more detail on the following test.

Operational Checks

Tests for Cycle Times

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

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

Drift Tests for Bulldozer Lift Cylinders

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

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

Drift Tests for Bulldozer Tilt Cylinder

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

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

Drift Tests for Ripper Lift Cylinder

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

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

Steering Operation Checks

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)

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

Hydraulic System

Reference: Refer to Testing & Adjusting, UENR4056 for more detail on the following tests.

Piston Pump (Implement) - Test and Adjust

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)

(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

Table 13

Status(1)	Description	Specification	Actual	Comments
	Accumulator Nitrogen Charge Pressure at HIGH IDLE	1050 ± 100 kPa (152 ± 15 psi)		Refer to M0064234

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

Piston Pump (Steering) - Test and Adjust

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

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

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

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

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

Hydraulic Fan Speed (On Demand) - Test and Adjust

Table 16

Status(1)	Description	Specification	Actual	Comments
	Maximum	1550 to 2000 RPM
	Minimum	450 to 700 RPM
	Clip Speed	1550 ± 50 RPM
	Low Fan Speed (If Equipped)	125 ± 50 RPM

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

Power Train System

Reference: Refer to Testing & Adjusting, UENR4056, "Power Train System" for more detail on the following test.

Transmission Clutch Pressure - Test

Table 17

Status(1)	Description	Specification	Actual	Comments
	Clutch 1	2585 ± 105 kPa (375 ± 15 psi)
	Clutch 2	2585 ± 105 kPa (375 ± 15 psi)
	Clutch 3	2585 ± 105 kPa (375 ± 15 psi)
	Clutch 4	2585 ± 105 kPa (375 ± 15 psi)
	Clutch 5	2205 ± 205 kPa (320 ± 30 psi)

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

Brake Pressure - Test

Table 18

Status(1)	Description	Specification	Actual	Comments
	Low Idle at Pressure Tap (B1)	2386 ± 187 kPa (346 ± 27 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	2386 ± 187 kPa (346 ± 27 psi)
	Low Idle Left Final Drive Brake	2386 ± 187 kPa (346 ± 27 psi)
	High Idle Left Final Drive Lube	105 ± 68 kPa (15 ± 10 psi)
	Low Idle Left Final Drive Lube	11 ± 10 kPa (1.6 ± 1.5 psi)
	High Idle Right Final Drive Lube	105 ± 68 kPa (15 ± 10 psi)
	Low Idle Right Final Drive Lube	11 ± 10 kPa (1.6 ± 1.5 psi)

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

Relief Valve (Transmission) - Test and Adjust

Table 19

Status(1)	Description	Specification	Actual	Comments
	Low Idle (P)	2585 ± 105 kPa (375 ± 15 psi)
	High Idle	2758 ± 138 kPa (400 ± 20psi)

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

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

Table 20

Status(1)	Description	Specification	Actual	Comments
	High Idle (M)	621 ± 103 kPa (90 ± 15 psi)

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

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

Table 21

Status(1)	Description	Specification	Actual	Comments
	High Idle THIRD SPEED FORWARD STALL at Pressure Port (N)	493 ± 93 kPa (71 ± 13.5 psi)

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

Flywheel Lubrication Oil Pressure - Test

Table 22

Status(1)	Description	Specification	Actual	Comments
	High Idle (L2)	310 ± 105 kPa (45 ± 15 psi)
	Low Idle (L2)	205 ± 69 kPa (30 ± 10 psi)

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

Transmission Lubrication Oil Pressure - Test

Table 23

Status(1)	Description	Specification	Actual	Comments
	High Idle (L1)	170 ± 35 kPa (25 ± 5 psi)
	Low Idle (L1)	24 ± 14 kPa (3.5 ± 2 psi)

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

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU9128, "Maintenance Interval Schedule" for more detail on the following S.O.S.

Table 24

Status(1)	Description	Obtain		Comments
	Engine Oil Sample
	Engine Coolant Sample (Level II)
	Hydraulic Oil Sample
	Transmission Oil Sample
	Right Final Drive Oil Sample
	Left Final Drive Oil Sample

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