D8N Track-Type Tractors TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar

D8N Track-Type Tractors TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

D8N 1XJ

Track-Type Tractor: D8N (S/N: 9TC1-UP; 1XJ1-UP; 5TJ1-UP; 7TK1-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

Use the following procedure to create an editable electronic copy from SIS Web.

Click format to print.
Save the document as an HTML format.
Open the document with Microsoft Word.

Electrical System

Show/hide table

Table 1
Description	Specification	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).
Battery Test	12.4 VDC or more	Refer to Testing and Adjusting, RENR1363, "Battery - Test" Refer to Special Instruction, SEHS7633, "Battery Test Procedure"
Charging System Test	28 ± 1 V	Refer to Testing and Adjusting, RENR1363, "Charging System - Test" Refer to Special Instruction, REHS0354, "Charging System Troubleshooting"
Electric Starting System Test		Refer to Testing and Adjusting, RENR1363, "Electric Starting System - Test"

Show/hide table

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

Engine

Cooling System

Show/hide table

Table 2
Description	Specification	Comments
Radiator Pressure Relief (Radiator Cap)⁽²⁾		Use 9S-8140 Pressurizing Pump to test the radiator pressure cap. 34.5 kPa (5.0 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
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

Show/hide table

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

Fuel System

Show/hide table

Table 3
Status⁽¹⁾	Description	Specification	Actual	Comments
	Fuel pressure of the engine at operating temperature	446 ± 34 kPa (65 ± 5 psi) to 894 ± 34 kPa (130 ± 5 psi)

Show/hide table

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

Lubrication System

Show/hide table

Table 4
Status⁽¹⁾	Description	Specification	Actual	Comments
	Engine Oil Pressure at Low Idle	125 kPa (18 psi)
	Engine Oil Pressure at High Idle	600 kPa (87 psi)

Show/hide table

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

Basic Engine

Show/hide table

Table 5
Description	Specification	Comments
Engine Speed at Low Idle	400 RPM
Engine Speed at High Idle	2400 RPM
Cylinder Cutout Test		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

Show/hide table

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 Section, SENR3414 and SENR9428 for more detail on the following test.

Bulldozer Tilt Cylinder Speed Test

Show/hide table

Table 7
Status⁽¹⁾	Description	Specification	Actual	Comments
	BS and BU Blade Tilt (full tilt left to full tilt right)	3.7 seconds
	BA Blade Tilt (full tilt left to full tilt right)	2.5 seconds
	BS and BU Blade Tilt (full tilt left to full tilt right)	3.9 seconds
	BA Blade Tilt (full tilt left to full tilt right)	2.5 seconds
	SU or U Blade Tilt (full tilt left to full tilt right or full tilt right to full tilt left)	1.7 to 2.0 seconds
	A Blade (full tilt right to full tilt left only)	1.0 to 1.2 seconds

Show/hide table

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

Bulldozer Lift Cylinder Speed Test

Show/hide table

Table 8
Status⁽¹⁾	Description	Specification	Actual	Comments
	BS and BU Blade Tilt (full down to full up)	4.1 seconds
	BS and BU Blade Tilt (full up to full down)	7.1 seconds (Max)
	All other blades (full up)	2.7 to 3.0 seconds
	All other blades (full up to ground (Quick- drop))	9.0 to 1.2 seconds
	All other blades (pause at ground (Quick- drop))	1.4 to 1.7 seconds

Show/hide table

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

Ripper Cylinder Speed Test

Show/hide table

Table 9
Status⁽¹⁾	Description	Specification	Actual	Comments
	Ripper (full down to full up)	3.9 seconds
	Ripper (full up to full down)	4.7 seconds (Max)
	Ripper (full shank-in to full shank-out)	4.7 seconds
	Ripper (full shank-out to full shank-in)	5.9 seconds
	Full down to full up	3.6 to 4.0 seconds
	Full shank-in to full shank-out (Retract Cylinder)	4.2 to 4.9 seconds

Show/hide table

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

Bulldozer Lift Cylinder Drift

Show/hide table

Table 10
Description	Time	Specification
Bulldozer Lift Cylinder Drift Test (Oil temperature of 28 to 48°C (82 to 118°F))	5 minutes	Maximum Drift 38 mm (1.5 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 49 to 68°C (120 to 154°F))	2.7 minutes	Maximum Drift 38 mm (1.5 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 69 to 88°C (156 to 246 °F))	1.7 minutes	Maximum Drift 38 mm (1.5 inch)

Show/hide table

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

Bulldozer Tilt Cylinder Drift

Show/hide table

Table 11
Description	Time	Specification
Bulldozer Lift Cylinder Drift Test (Oil temperature of 28 to 48°C (82 to 118°F))	5 minutes	Maximum Drift 11.0 mm (0.43 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 49 to 68°C (120 to 154°F))	2.7 minutes	Maximum Drift 11.0 mm (0.43 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 69 to 88°C (156 to 246 °F))	1.7 minutes	Maximum Drift 11.0 mm (0.43 inch)

Show/hide table

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

Bulldozer Ripper Lift Cylinder Drift

Show/hide table

Table 12
Description	Time	Specification
Bulldozer Lift Cylinder Drift Test (Oil temperature of 28 to 48°C (82 to 118°F))	5 minute	Maximum Drift 10.0 mm (0.39 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 49 to 68°C (120 to 154°F))	2.7 minutes	Maximum Drift 10.0 mm (0.39 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 69 to 88°C (156 to 246 °F))	1.7 minutes	Maximum Drift 10.0 mm (0.39 inch)

Show/hide table

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

Bulldozer Ripper Cylinder Drift

Lower the ripper in order to raise the rear of the tractor before conducting any measurements for the test.

Show/hide table

Table 13
Description	Time	Specification
Bulldozer Lift Cylinder Drift Test (Oil temperature of 28 to 48°C (82 to 118°F))	5 minutes	Maximum Drift 6.0 mm (0.24 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 49 to 68°C (120 to 154°F))	2.7 minutes	Maximum Drift 6.0 mm (0.24 inch)
Bulldozer Lift Cylinder Drift Test (Oil temperature of 69 to 88°C (156 to 246 °F))	1.7 minutes	Maximum Drift 6.0 mm (0.24 inch)

Show/hide table

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

Hydraulic System

Reference: Refer to Testing & Adjusting Section, SENR3414 and SENR9428 for more detail on the following test.

Pump Discharge Pressure - Tests

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 14
Status⁽¹⁾	Description	Specification	Actual	Comments
	Low-pressure standby test	3000 kPa (435 psi)
	High-pressure stall test	38500 ± 700 kPa (5584 ± 102 psi)
	High-pressure stall test on Delta P gauge at maximum oil temperature of 66° C (151 ° F)	Less than 345 kPa (50 psi)
	Margin pressure test	2100 ± 70 kPa (305 ± 10 psi)

Show/hide table

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

Pump Discharge Pressure - Tests

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 15
Status⁽¹⁾	Description	Specification	Actual	Comments
	Low-pressure standby test	3000 kPa (435 psi)
	High-pressure stall test	24100 ± 450 kPa (3496 ± 65 psi)
	High-pressure stall test on Delta P gauge at maximum oil temperature of 66° C (151 ° F)	Less than 345 kPa (50 psi)
	Margin pressure test	2100 ± 275 kPa (305 ± 40 psi)

Show/hide table

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

Pump Load- Test

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 16
Status⁽¹⁾	Description	Specification	Actual	Comments
	Pump discharge pressure gauge on the tee side of the delta P gauge	38500 ± 700 kPa (5584 ± 102 psi)
	Differential pressure on delta P gauge	550 kPa (80 psi)

Show/hide table

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

Compensator Valve Adjustments

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 17
Status⁽¹⁾	Description	Specification	Actual	Comments
	Pressure cut off spool adjustment	38500 ± 700 kPa (5584 ± 102 psi)
	Margin spool adjustment	2100 ± 70 kPa (305 ± 10 psi)

Show/hide table

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

Compensator Valve Adjustments

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 18
Status⁽¹⁾	Description	Specification	Actual	Comments
	Pressure cut off spool adjustment	23990 ± 515 kPa (3480 ± 75 psi)
	Margin spool adjustment	2100 ± 100 kPa (305 ± 15 psi)

Show/hide table

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

Main Relief Valve Adjustment (Implement)

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 19
Status⁽¹⁾	Description	Specification	Actual	Comments
	Main Relief Valve Adjustment (Implement)	27000 ± 350 kPa (3916 ± 51 psi)

Show/hide table

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

Pressure Test of Pressure Limiter Valves

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 20
Status⁽¹⁾	Description	Specification	Actual	Comments
	Bulldozer lift circuit	24200 ± 860 kPa (3510 ± 125 psi)
	Bulldozer tilt circuit	17225 ± 690 kPa (2498 ± 100 psi)
	Ripper lift circuit	22750 ± 860 kPa (3300 ± 125 psi)

Show/hide table

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

Steering System

Reference: Refer to Testing & Adjusting Section, SENR3414 and SENR9428 for more detail on the following test.

Implement and Steering Pump Stop Screw Adjustments

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 21
Status⁽¹⁾	Description	Specification	Actual	Comments
	Minimum stop screw	1/2 turn⁽²⁾
	Maximum stop screw⁽³⁾	7000 kPa (1015 psi)

Show/hide table

⁽¹⁾	N = Normal, M = Monitor, A = Action
⁽²⁾	Turn the stop screw backout 1/2 turn and tighten the locknut
⁽³⁾	Flow of 281 ± 2 L/min (74 ± 1 US gpm)

Steering Pump Cutoff Pressure

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 22
Status⁽¹⁾	Description	Specification	Actual	Comments
	Engine speed at 2240 RPM (Oil temperature of 65 ± 5° C (149 ± 41 ° F)	40000 ± 700 kPa (5802 ± 102 psi)
	Engine speed at 2240 RPM (Oil temperature of 80 ± 5° C (176. ± 41 ° F)	40000 ± 700 kPa (5802 ± 102 psi)

Show/hide table

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

Charge Pump Pressure - Check and Adjust

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 23
Status⁽¹⁾	Description	Specification	Actual	Comments
	Charge pump discharge pressure tap	345 to 550 kPa (50 to 80 psi)		Use 0 to 4000 kPa (0 to 580 psi) pressure gauges
	Charge pump relief pressure tap	2500 ± 300 kPa (363 ± 44 psi)

Show/hide table

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

Steering Pump Control Valve Neutral Adjustment (Hydraulic Zero)

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 24
Status⁽¹⁾	Description	Specification	Actual	Comments
	Pressure on both the taps	345 kPa (50 psi)

Show/hide table

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

Steering Pump Crossover Relief/ makeup Valve - Check and Adjust

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 25
Description	Specification	Comments
Engine speed at high idle	2240 ± 40 rpm
Flow rate	20 to 100 L/min (5 to 26 US gpm)
Relief valve pressure	45000 ± 500 kPa (6527 ± 73 psi)	Use 9V-5829 Test Block

Show/hide table

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

Steering Pump Case Pressure Test

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 26
Status⁽¹⁾	Description	Specification	Actual	Comments
	Steering Pump Case Pressure Test	175 kPa (25 psi)

Show/hide table

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

Steering Pilot Valve Test and Adjustment

(S/N: 5TJ1-UP) (S/N: 7TK1-UP)

Show/hide table

Table 27
Status⁽¹⁾	Description	Specification		Actual	Comments
Status⁽¹⁾	Description	Steer Left Pilot Pressure	Steer Right Pilot Pressure	Actual	Comments
	(A)Steer Left	745 ± 100 kPa (108 ± 15 psi)	0 to 200 kPa (0 to 29 psi)
	(B)Steer Left	1200 ± 170 kPa (174 ± 25 psi)	0 to 200 kPa (0 to 29 psi)
	(C)Steer Left	2060 ± 240 kPa (300 ± 35 psi)	0 to 200 kPa (0 to 29 psi)
	(A)Steer Right	0 to 200 kPa (0 to 29 psi)	745 ± 100 kPa (108 ± 15 psi)
	(B)Steer Right	0 to 200 kPa (0 to 29 psi)	1200 ± 170 kPa (174 ± 25 psi)
	(C)Steer Right	0 to 200 kPa (0 to 29 psi)	2060 ± 240 kPa (300 ± 35 psi)

Show/hide table

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

Brake System

Reference: Refer to Testing & Adjusting Section, SENR3414 for more detail on the following test.

Parking Brake Adjustment

(S/N: 9TC1-UP) (S/N: 1XJ1-UP)

Show/hide table

Table 28
Status⁽¹⁾	Description	Specification	Actual	Comments
	Parking Brake lever in on position	0 kpa (0 psi)
	Parking Brake lever in off position	3370 ± 140 kPa (489 ± 20 psi)

Show/hide table

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

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU6422 and SEBU6028, "Maintenance Interval Schedule" for more detail on performing S.0.S samples.

Show/hide table

Table 29
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
	Power Train Oil Sample	Every 500 Service Hours
	Right Final Drive Oil Sample	Every 500 Service Hours
	Left Final Drive Oil Sample	Every 500 Service Hours