725 and 730 Articulated Truck TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar

Articulated Truck:

725 (S/N: AFX1-UP)

730 (S/N: AGF1-UP)

Introduction

Inspections are the most basic form of condition monitoring. Inspections 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.

Note: Specification values are based on the following machine settings unless stated otherwise

• Engine Speed Dial "10"

• AEC OFF

• HP Mode

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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).
	Battery Test	12.4 VDC or more		Refer to Special Instruction, SEHS7633, "Battery Test Procedure".
	Charging System Test	18 VDC to 32 VDC		Refer to Special Instruction, REHS0354, "Charging System Troubleshooting".
	Electric Starting System Test	12 to 16 V at −23° C (−10° F) to −7° C (19° F)		Refer to Testing and Adjusting, SENR9528, "Electric Starting System - Test".
		14 to 18 V at −7° C (19° F) to 10° C (50° F)
		16 to 24 V 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	-		Use 245-5829 Coolant/Battery Tester Gp .
	Conditioner Test of Engine Coolant	-		Use 8T-5296 Coolant Conditioner Test Kit .
	Belt Tension	Auto Tension
	Difference between the Upper Radiator Tank Temperature and Lower Radiator Tank Temperature	3 + 5 - 5 °C (37 + 41 - 41 °F)
	Jacket Water Inlet Temperature from Cooling System	89 ± 3 °C (192 ± 37 °F)

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

Fuel System for 725 S/N:AFX1-UP

Table 3

Status (1)	Description	Specification	Actual	Comments
	Fuel Pressure at HIGH IDLE	702 + 218 - 242 kPa (102 + 32 - 35 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Fuel System for 730 S/N:AGF1-UP

Table 4

Status (1)	Description	Specification	Actual	Comments
	Fuel Pressure at HIGH IDLE	701 + 214 - 244 kPa (102 + 31 - 244 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Lubrication System for 725 S/N:AFX1-UP

Table 5

Status (1)	Description	Specification	Actual	Comments
	Oil Pressure at LOW IDLE	115 + 485 - 41 kPa (17 + 70 - 6 psi)
	Oil Pressure at HIGH IDLE	339 + 261 - 89 kPa (49 + 38 - 13 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Lubrication System for 730 S/N:AGF1-UP

Table 6

Status (1)	Description	Specification	Actual	Comments
	Oil Pressure at LOW IDLE	118 + 482 - 35 kPa (17 + 70 - 5 psi)
	Oil Pressure at HIGH IDLE	345 + 255 - 95 kPa (50 + 37 - 14 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Basic Engine for 725 S/N:AFX1-UP

Table 7

Status (1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	700 ± 10 rpm
	Engine Speed at High Idle	2476 ± 10 rpm
	Cylinder Cutout Test			Cat® Electronic Technician (Cat ET) Service Tool
	Engine Crankcase Pressure (Blowby)

( 1 )

N = Normal, M = Monitor, A = Action

Basic Engine for 730 S/N:AGF1-UP

Table 8

Status (1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	2500 ± 10 rpm
	Engine Speed at High Idle	700 ± 10 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 for 725 S/N:AFX1-UP

Table 9

Status (1)	Description	Specification	Actual	Comments
	Torque Converter Boost Pressure	89.5 to 121.1 kPa (13.0 to 17.6 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)

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

Air Inlet and Exhaust System for 730 S/N:AGF1-UP

Table 10

Status (1)	Description	Specification	Actual	Comments
	Torque Converter Boost Pressure	86.9 to 117.7 kPa (12.6 to 17.1 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)

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

Performance Checks

ReferenceRefer to Testing & Adjusting, RENR3429, "Steering, Suspension, and Body Hoist Hydraulic System" and Testing & Adjusting, RENR6715, "Steering, Suspension, and Body Hoist Hydraulic System" for more detail on the following test.

Operational Checks

Body Hoist Cycle Time - Check for 725 S/N:AFX1-UP

Table 11

Status (1)	Description	Specification		Actual	Comments
		725 S/N:AFX1-1178	725 S/N:AFX1179-UP
	Body Hoist Cycle Time - Raise	10 seconds maximum	10 seconds maximum
	Body Hoist Cycle Time - Lower	6 seconds maximum	8 seconds maximum

( 1 )

N = Normal, M = Monitor, A = Action

Body Hoist Cycle Time - Check for 730 S/N:AGF1-UP

Table 12

Status (1)	Description	Specification		Actual	Comments
		730 S/N:AGF1-1091	730 S/N:AGF1092-UP
	Body Hoist Cycle Time - Raise	12 seconds maximum	12 seconds maximum
	Body Hoist Cycle Time - Lower	8 seconds maximum	10 seconds maximum

( 1 )

N = Normal, M = Monitor, A = Action

Steering Performance Checks

Table 13

Status (1)	Description	Specification	Actual	Comments
	Steering Time - Check
	Left Steering Time (High Idle)	4 ± 1 seconds (2)
	Right Steering Time (High Idle)	4 ± 1 seconds (2)
	Electric Drive Pump Test (Secondary Steering) (3)
	Left Steering	12100 ± 1700 kPa (1750 ± 250 psi)
	Right Steering	12100 ± 1700 kPa (1750 ± 250 psi)
	Electric Drive Pump Test (Secondary Steering) (4)
	Left Steering	13790 ± 690 kPa (2000 ± 100 psi)
	Right Steering	13790 ± 690 kPa (2000 ± 100 psi)

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Maximum when the steering wheel is rotated at 60 rpm.
( 3 )	for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091.
( 4 )	for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP.

Machine Hydraulic Systems

ReferenceRefer to Testing & Adjusting, RENR5126, "Steering, Suspension, and Body Hoist Hydraulic System" for more detail on the following test.

Hoist & Body and Ejector Hydraulic System

Relief Valve (Hoist Raise, Hoist Lower) - Test and Adjust for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 14

Status (1)	Description	Specification	Actual	Comments
	Hoist Relief Pressure - Raise	20700 ± 340 kPa (3000 ± 50 psi)
	Hoist Relief Pressure - Lower	6900 ± 340 kPa (1000 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Piston Pump (Steering, Hoist) - Test and Adjust for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 15

Status (1)	Description	Specification	Actual	Comments
	Hoist Relief Pressure - Raise	20700 ± 340 kPa (3000 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Hoist Lower) - Test and Adjust for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 16

Status (1)	Description	Specification	Actual	Comments
	Hoist Relief Pressure - Raise	7584 ± 690 kPa (1100 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Pressure Reducing Valve (Hoist Pilot Pressure) - Test and Adjust for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 17

Status (1)	Description	Specification	Actual	Comments
	Hoist Pilot Pressure	5170 ± 345 kPa (750 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Pressure Reducing Valve (Hoist Pilot Pressure) - Test and Adjust for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 18

Status (1)	Description	Specification	Actual	Comments
	Hoist Pilot Pressure	3400 ± 700 kPa (500 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Suspension System

Suspension Cylinder (Front) - Purge and Charge

Table 19

Status (1)	Description	Specification	Actual	Comments
	Left Suspension Cylinder Height	105 ± 10 mm (4.15 ± 0.4 inch)
	Right Suspension Cylinder Height	105 ± 10 mm (4.15 ± 0.4 inch)

( 1 )

N = Normal, M = Monitor, A = Action

Steering System

Piston Pump (Steering) - Test and Adjust for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 20

Status (1)	Description	Specification	Actual	Comments
	Steering System Pressure (Maximum Pressure)	20680 ± 345 kPa (3000 ± 50 psi)
	Steering System Pressure (Standby Pressure)	3447 ± 690 kPa (500 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Piston Pump (Steering Hoist) - Test and Adjust for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 21

Status (1)	Description	Specification	Actual	Comments
	Steering System Pressure (Maximum Pressure)	20680 ± 345 kPa (3000 ± 50 psi)
	Steering System Pressure (Standby Pressure)	3400 ± 700 kPa (500 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Fan Drive System - Test for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 22

Status (1)	Description	Specification	Actual	Comments
	Maximum Fan Speed (High Idle)	1700 ± 100 rpm
	Minimum Fan Speed (Low Idle)	700 ± 100 rpm

( 1 )

N = Normal, M = Monitor, A = Action

Fan Drive System - Test for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 23

Status (1)	Description	Specification	Actual	Comments
	Maximum Fan Speed (High Idle)	1700 ± 100 rpm
	Minimum Fan Speed (Low Idle)	600 ± 100 rpm

( 1 )

N = Normal, M = Monitor, A = Action

Braking System

ReferenceRefer to Testing & Adjusting, RENR3488, "Braking System" for more detail on the following test.

Pressure for Piston Pump (Brake) - Test for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 24

Status (1)	Description	Specification	Actual	Comments
	Brake Piston Pump Pressure	21030 ± 345 kPa (3050 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Piston Pump (Brake, Hoist, Fan) - Test and Adjust for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 25

Status (1)	Description	Specification	Actual	Comments
	Brake Piston Pump Pressure	20700 ± 700 kPa (3000 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Brake Line Pressure for Front Axle - Test for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 26

Status (1)	Description	Specification	Actual	Comments
	Brake Line Pressure	11020 ± 480 kPa (1600 ± 70 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Brake Line Pressure for Front Axle - Test for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 27

Status (1)	Description	Specification	Actual	Comments
	Brake Line Pressure	11000 ± 700 kPa (1600 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Brake Line Pressure for Center and Rear Axle - Test

Table 28

Status (1)	Description	Specification	Actual	Comments
	Brake Line Pressure	11000 ± 500 kPa (1600 ± 70 psi) (2)
		10860 ± 520 kPa (1575 ± 75 psi) (3)

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091.
( 3 )	for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP.

Release Pressure for Parking Brake - Test for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091

Table 29

Status (1)	Description	Specification	Actual	Comments
	Release Pressure for Parking Brake Check	21030 ± 345 kPa (3050 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Release Pressure for Parking Brake - Test for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Table 30

Status (1)	Description	Specification	Actual	Comments
	Release Pressure for Parking Brake Check	13100 ± 690 kPa (1900 ± 100 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Brake Accumulator (Service) - Test and Charge

Table 31

Status (1)	Description	Specification	Actual	Comments
	Precharge Pressure at 21° C (70° F)	11024 ± 200 kPa (1600 ± 30 psi) (2)
		8000 ± 200 kPa (1160 ± 29 psi) (3)

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	for 725 S/N:AFX1-1178 and 730 S/N:AGF1-1091
( 3 )	for 725 S/N:AFX1179-UP and 730 S/N:AGF1092-UP

Brake Accumulator (Parking) - Test and Charge

Table 32

Status (1)	Description	Specification	Actual	Comments
	Precharge Pressure at 21° C (70° F)	9600 ± 172 kPa (1400 ± 25 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Power Train Systems

ReferenceRefer to Testing & Adjusting, RENR3484, "Power Train" for more detail on the following test.

Power Train Pressures

Table 33

Status (1)	Description	Specification	Actual	Comments
	Relief Pressure for the Torque Converter Inlet (Low Idle)	125 ± 35 kPa (18 ± 5 psi)
	Relief Pressure for the Torque Converter Inlet (High Idle)	485 ± 35 kPa (70 ± 5 psi)
	Relief Pressure For The Torque Converter Outlet And Oil Cooler Inlet (Low Idle)	35 ± 14 kPa (5 ± 2 psi)
	Relief Pressure For The Torque Converter Outlet And Oil Cooler Inlet (High Idle)	207 ± 35 kPa (30 ± 5 psi)
	Pressure For The Torque Converter Lockup Clutch (High Idle)	1655 ± 138 kPa (240 ± 20 psi)
	Output Pressure for Retarder (Position 1)	345 ± 70 kPa (50 ± 10 psi)
	Output Pressure for Retarder (Position 2)	550 ± 70 kPa (80 ± 10 psi)
	Output Pressure for Retarder (Position 3)	690 ± 70 kPa (100 ± 10 psi)
	Pressure For the Actuation of the Retarder (Position 1)	210 ± 70 kPa (30 ± 10 psi)
	Pressure For the Actuation of the Retarder (Position 2)	415 ± 70 kPa (60 ± 10 psi)
	Pressure For the Actuation of the Retarder (Position 3)	520 ± 70 kPa (75 ± 10 psi)
	Pressure for Transmission Lubrication (Low Idle)	21 ± 14 kPa (3 ± 2 psi)
	Pressure for Transmission Lubrication (High Idle)	160 ± 35 kPa (23 ± 5 psi)
	Relief Pressure For The Transmission Hydraulic Control (High Idle)	1790 ± 135 kPa (260 ± 20 psi)
	Relief Pressure For The Transmission Hydraulic Control (Low Idle)	1655 ± 135 kPa (240 ± 20 psi)
	Pressure At The Transmission Pump (High Idle)	1790 ± 135 kPa (260 ± 20 psi)
	Pressure At The Transmission Pump (Low Idle)	1655 ± 135 kPa (240 ± 20 psi)
	Pressure At The Planetary Transmission Clutches (High Idle)	1655 ± 135 kPa (240 ± 20 psi)
	Pressure In The Latching Rail For The Transmission (High Idle)	1655 ± 135 kPa (240 ± 20 psi)
	Pressure At The Transfer Gear and Differential Lock Pump (High Idle)	2755 ± 345 kPa (400 ± 50 psi)
	Transfer Gear Lubrication (High Idle)	240 ± 105 kPa (35 ± 15 psi)
	Lockup Pressure for The Interaxle Differential and the Supply Pressure for the Axle Differential Locks (High Idle)	2755 ± 345 kPa (400 ± 50 psi)
	Axle Differential Lock (High Idle)	2755 ± 345 kPa (400 ± 50 psi)

( 1 )

N = Normal, M = Monitor, A = Action

S.O.S

ReferenceRefer to Operation and Maintenance Manual, SEBU7347, "Maintenance Interval Schedule" for more detail on performing S.O.S samples.

Table 34

Status (1)	Description	Obtain	Comments
	Engine Oil Sample
	Engine Coolant Sample (Level I)
	Engine Coolant Sample (Level II)
	Hoist System and Brake System Oil Sample
	Steering System Oil Sample
	Differential & Final Drive Oil Samples
	Front Axle Housing Oil Sample
	Center Axle Housing Oil Sample
	Rear Axle Housing Oil Sample
	Left Front Final Drive Oil Sample
	Right Front Final Drive Oil Sample
	Left Center Final Drive Oil Sample
	Right Center Final Drive Oil Sample
	Left Rear Final Drive Oil Sample
	Right Rear Final Drive Oil Sample
	Torque Converter and Transmission Oil Sample
	Transfer Gear Oil Sample

( 1 )

N = Normal, M = Monitor, A = Action