950H, 962H Wheel Loader and IT62H Integrated Toolcarrier TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar

950H, 962H Wheel Loader and IT62H Integrated Toolcarrier TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565}

Usage:

950H J5J

Integrated Toolcarrier:: IT62H (S/N: M5G1-UP)
Wheel Loader:: 950H (S/N: N1A1-UP; JAD1-UP; M1G1-UP; J5J1-UP; K5K1-UP); 962H (S/N: N4A1-UP; M3G1-UP; J6J1-UP; K6K1-UP; MAL1-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.

Creating an Electronic Copy

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

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Electrical System

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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 - Test".
	Electric Starting System Test	12 to 16 V at −23° C (−10° F) to −7° C (19° F)		Refer to Testing and Adjusting, SENR9939, "Electrical 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)

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^( 1 )

N = Normal, M = Monitor, A = Action

Engine

Cooling System

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Table 2
Description	Specification	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	6° + 5° - 5 °C (43° + 41° - 41 °F) ⁽³⁾
	5° + 5° - 5 °C (41° + 41° - 41 °F) ⁽⁴⁾
Jacket Water Inlet Temperature from Cooling System	89° ± 3°C (192° ± 5 °F)

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^( 1 )	N = Normal, M = Monitor, A = Action
^( 2 )	Test for the pressure that is listed on the cap.
^( 3 )	For 950H S/N:N1A1-UP
^( 4 )	For 962H S/N:N4A1-UP

Fuel System

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Table 3
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Fuel Pressure at HIGH IDLE	580 + 120 - 206 kPa (84 + 17 - 30 psi) ⁽²⁾
	Fuel Pressure at HIGH IDLE	561 ± 187 kPa (81 ± 27 psi) ⁽³⁾

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^( 1 )	N = Normal, M = Monitor, A = Action
^( 2 )	For 950H S/N:N1A1-UP
^( 3 )	For 962H S/N:N4A1-UP

Lubrication System

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Table 4
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Engine Oil Pressure at LOW IDLE	175 + 225 - 75 kPa (25 + 33 - 11 psi) ⁽²⁾
	Engine Oil Pressure at LOW IDLE	139 + 461 - 79 kPa (20 + 67 - 11 psi) ⁽³⁾
	Engine Oil Pressure at HIGH IDLE	310 + 290 - 19 kPa (45 + 42 - 19 psi) ⁽²⁾
	Engine Oil Pressure at HIGH IDLE	261 + 339 - 81 kPa (38 + 49 - 12 psi) ⁽³⁾

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^( 1 )	N = Normal, M = Monitor, A = Action
^( 2 )	For 950H S/N:N1A1-UP
^( 3 )	For 962H S/N:N4A1-UP

Basic Engine

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Table 5
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Engine Speed at HIGH IDLE	2340 ± 10 rpm
	Engine Speed at LOW IDLE	825 ± 10 rpm

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^( 1 )

N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

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Table 6
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Torque Converter Oil Temperature	75° to 105°C (167° to 221° F)
	Torque Converter Stall Test Boost Pressure	154 ± 23.1 kPa (22 ± 3.4 psi) ⁽²⁾
	Torque Converter Stall Test Boost Pressure	150 ± 22.5 kPa (22 ± 3.3 psi) ⁽³⁾
	Engine Speed	2185 ± 65 rpm
	Cylinder # 1 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 2 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 3 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 4 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 5 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 6 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 7 Exhaust Temperature ⁽⁴⁾	Even
	Cylinder # 8 Exhaust Temperature ⁽⁴⁾	Even

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^( 1 )	N = Normal, M = Monitor, A = Action
^( 2 )	For 950H S/N:N1A1-UP
^( 3 )	For 962H S/N:N4A1-UP
^( 4 )	Compare the exhaust temperature variance at each exhaust port.

Hydraulic Performance Checks

ReferenceRefer to Testing & Adjusting, RENR8878, "Electrohydraulic System" for more detail on the following test.

Implement Cycle Time - Check

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Table 7
Status ⁽¹⁾	Description	Specification		Actual	Comments
Status ⁽¹⁾	Description	950H 962H	IT62H	Actual	Comments
	Lift Raise Time	6.2 ± 0.5 seconds	5.9 ± 0.5 seconds
	Lift Lower Time	3.5 ± 0.5 seconds	3.9 ± 0.5 seconds
	Float	2.8 ± 0.5 seconds	2.8 ± 0.5 seconds
	Dump Time	2.0 ± 0.5 seconds	3.2 ± 0.5 seconds
	Tilt Back Time	2.5 ± 0.5 seconds	4.3 ± 0.5 seconds

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^( 1 )

N = Normal, M = Monitor, A = Action

Lift and Tilt Cylinder Drift - Check

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Table 8
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Maximum Implement Drift in 5.0 minutes ⁽²⁾ for Rod Movement of Lift Cylinder	13 mm (0.5 inch)
	Maximum Implement Drift in 2.7 minutes ⁽³⁾ for Rod Movement of Lift Cylinder	13 mm (0.5 inch)
	Maximum Implement Drift in 1.7 minutes ⁽⁴⁾ for Rod Movement of Lift Cylinder	13 mm (0.5 inch)
	Maximum Implement Drift in 2.7 minutes ⁽³⁾ for Rod Movement of Tilt Cylinder	19.0 mm (0.75 inch)
	Maximum Implement Drift in 1.7 minutes ⁽⁴⁾ for Rod Movement of Tilt Cylinder	19.0 mm (0.75 inch)

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^( 1 )	N = Normal, M = Monitor, A = Action
^( 2 )	Oil temperature below 38° to 49°C (100° to 120°F).
^( 3 )	Oil temperature between 50° to 65°C (122° to 149°F).
^( 4 )	Oil temperature between 66°C (150°F).

Brake Performance Checks

ReferenceRefer to Testing & Adjusting, RENR8875, "Braking and Hydraulic Fan System" for more detail on the following test.

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Table 9
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Brake Accumulator - Test
	Service Brake Holding Ability Test
	Parking Brake Holding Ability Test

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^( 1 )

N = Normal, M = Monitor, A = Action

Steering Performance Checks

ReferenceRefer to Testing & Adjusting, RENR8872, "Steering System" for more detail on the following test.

Steering Time - Check - Command Control Steering

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Table 10
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Left Steering Time for a Full Turn from Stop to Stop (HIGH IDLE)	2.7 ± 0.5 seconds
	Right Steering Time for a Full Turn from Stop to Stop (HIGH IDLE)	2.7 ± 0.5 seconds
	Left Steering Time for a Full Turn from Stop to Stop (LOW IDLE)	less than 5.7 ± 0.5 seconds
	Right Steering Time for a Full Turn from Stop to Stop (LOW IDLE)	less than 5.7 ± 0.5 seconds
	Difference between the steering time for a right turn and the steering time for a left turn	must not be more than 0.3 seconds

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^( 1 )

N = Normal, M = Monitor, A = Action

Steering Time - Check - HMU Steering

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Table 11
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Left Steering Time for a Full Turn from Stop to Stop (HIGH IDLE)	2.7 ± 0.5 seconds
	Right Steering Time for a Full Turn from Stop to Stop (HIGH IDLE)	2.7 ± 0.5 seconds
	Left Steering Time for a Full Turn from Stop to Stop (LOW IDLE)	less than 5.7 ± 0.5 seconds
	Right Steering Time for a Full Turn from Stop to Stop (LOW IDLE)	less than 5.7 ± 0.5 seconds
	Difference between the steering time for a right turn and the steering time for a left turn	must not be more than 0.3 seconds
	Difference between the steering time for a right turn and the steering time for a left turn (With the parking brake engaged)	must not be more than 0.2 seconds

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^( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic System

ReferenceRefer to Testing & Adjusting, RENR8878, "Electrohydraulic System" for more detail on the following test.

Piston Pump (Implement) Margin Pressure - Test and Adjust

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Table 12
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Margin Pressure at LOW IDLE	2100 ± 100 kPa (305 ± 15 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Pilot Pressure to the Main Control Valve - Check

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Table 13
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Pilot Pressure at HIGH IDLE	3515 ± 345 kPa (510 ± 50 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Load Sensing Signal) - Test and Adjust

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Table 14
Status ⁽¹⁾	Description	Specification	Actual	Comments
	System Pressure for Standard Machine at HIGH IDLE	27580 ± 690 kPa (4000 ± 100 psi)
	System Pressure for Logging machine at HIGH IDLE	27580 ± 690 kPa (4000 ± 100 psi) approximately

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^( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Line) - Test and Adjust

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Table 15
Status ⁽¹⁾	Description	Specification			Actual	Comments
Status ⁽¹⁾	Description	950H and 962H Tilt	IT62H Tilt	Auxiliary	Actual	Comments
	Line Relief Valve Pressure for Head End	30300 + 0 - 350 kPa (4400 + 0 - 50 psi)	20680 + 0 - 600 kPa (3000 + 0 - 50 psi)	-
	Line Relief Valve Pressure for Rod End	30300 + 0 - 350 kPa (4400 + 0 - 50 psi)	30300 + 0 - 350 kPa (4400 + 0 - 50 psi)	-
	Line Relief Valve Pressure for Head End (Logging)	34450 + 0 - 350 kPa (5000 + 0 - 50 psi)	-	20680 + 0 - 600 kPa (3000 + 0 - 50 psi)
	Line Relief Valve Pressure for Rod End (Logging)	30300 + 0 - 350 kPa (4400 + 0 - 50 psi)	-	20680 + 0 - 600 kPa (3000 + 0 - 50 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Pilot Oil Accumulator (Dead Engine, Lift Arm Lower) - Test and Charge

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Table 16
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Accumulator Pressure at HIGH IDLE	3515 ± 345 kPa (510 ± 50 psi)
	Accumulator Pressure at Dead Engine Lower	2000 ± 100 kPa (290 ± 15 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Ride Control Accumulator - Test and Charge

Refer to Special Instruction, REHS5464, "Accumulator Discharging and Charging Procedures" for the required tooling and the testing and charging procedure.

Specifications

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Table 17
950H Accumulator Precharge Pressure/Temperature Relationship for a Typical Ride Control Accumulator with a Precharge of 3270 kPa (475 psi)
Temperature	Pressure ⁽¹⁾
−7°C (20°F)	2994 kPa (435 psi)
−1°C (30°F)	3049 kPa (443 psi)
4°C (40°F)	3105 kPa (451 psi)
10°C (50°F)	3160 kPa (459 psi)
16°C (60°F)	3215 kPa (467 psi)
21°C (70°F)	3270 kPa (475 psi)
27°C (80°F)	3325 kPa (483 psi)
32°C (90°F)	3380 kPa (491 psi)
38°C (100°F)	3435 kPa (499 psi)
43°C (110°F)	3496 kPa (507 psi)
49°C (120°F)	3551 kPa (515 psi)

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Nominal allowable tolerance equals ± 35 kPa (± 5 psi).

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Table 18
962H Accumulator Precharge Pressure/Temperature Relationship for a Typical Ride Control Accumulator with a Precharge of 3270 kPa (475 psi)
Temperature	Pressure ⁽¹⁾
−7°C (20°F)	2994 kPa (435 psi)
−1°C (30°F)	3049 kPa (443 psi)
4°C (40°F)	3105 kPa (451 psi)
10°C (50°F)	3160 kPa (459 psi)
16°C (60°F)	3215 kPa (467 psi)
21°C (70°F)	3270 kPa (475 psi)
27°C (80°F)	3325 kPa (483 psi)
32°C (90°F)	3380 kPa (491 psi)
38°C (100°F)	3435 kPa (499 psi)
43°C (110°F)	3496 kPa (507 psi)
49°C (120°F)	3551 kPa (515 psi)

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Nominal allowable tolerance equals ± 35 kPa (± 5 psi).

Power Train System

ReferenceRefer to Testing & Adjusting, RENR8866, "Power Train System" for more detail on the following tests.

Tire Pressure

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Table 19
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Front Left Tire Pressure			See Tire Manufacture Recommendations
	Front Right Tire Pressure			See Tire Manufacture Recommendations
	Rear Left Tire Pressure			See Tire Manufacture Recommendations
	Rear Right Tire Pressure			See Tire Manufacture Recommendations

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^( 1 )

N = Normal, M = Monitor, A = Action

Torque Converter Stall - Test

This test is performed using the operator monitor. Refer to Testing and Adjusting, RENR8666, "Torque Converter Stall - Test" for further instruction.

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Table 20
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Torque Converter Stall Speed	2185 ± 65 RPM

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N = Normal, M = Monitor, A = Action

Transmission Pressures - Test and Adjust

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Table 21
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Number 1 clutch pressure at HIGH IDLE	2758 ± 140 kPa (400 ± 20 psi)
	Number 2 clutch pressure at HIGH IDLE	2758 ± 140 kPa (400 ± 20 psi)
	Number 3 clutch pressure at HIGH IDLE	2758 ± 140 kPa (400 ± 20 psi)
	Number 4 clutch pressure at HIGH IDLE	2758 ± 140 kPa (400 ± 20 psi)
	Number 5 clutch pressure at HIGH IDLE	2310 ± 140 kPa (335 ± 20 psi)
	Number 6 clutch pressure at HIGH IDLE	2758 ± 140 kPa (400 ± 20 psi)
	Transmission Lubrication Oil Pressure at HIGH IDLE	105 kPa (15 psi) minimum
	Torque Converter Inlet Pressure at HIGH IDLE	925 ± 50 kPa (135 ± 7.5 psi)
	Torque Converter Outlet Pressure at HIGH IDLE	415 ± 140 kPa (60 ± 20 psi)
	Transmission Oil Pump Pressure at HIGH IDLE	2758 ± 70 kPa (400 ± 10 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Steering System

ReferenceRefer to Testing & Adjusting, RENR8872, "Steering System" for more detail on the following tests.

Piston Pump (Steering) High Pressure Stall - Test and Adjust

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Table 22
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Piston Pump (Steering) High Pressure Stall	20398 ± 797 kPa (2959 ± 116 psi)

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N = Normal, M = Monitor, A = Action

Piston Pump (Steering) Margin Pressure - Test and Adjust

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Table 23
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Margin Pressure	2400 ± 150 kPa (350 ± 20 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Piston Pump (Steering) Low Pressure Standby - Test and Adjust

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Table 24
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Low Pressure Standby	3600 kPa (525 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Pump Backup) - Test and Adjust - HMU

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Table 25
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Relief Valve (Pump Backup) - Test	Less than 20865 ± 515 kPa (3050 ± 75 psi)

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N = Normal, M = Monitor, A = Action

Relief Valve (Steering Cylinder Crossover) - Test and Adjust

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Table 26
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Steering Cylinder Crossover Relief Valve Pressure	25600 ± 500 kPa (3713 ± 73 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Pilot Valve (Command Control Steering) Supply Pressure - Test and Adjust

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Table 27
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Pilot Control Valve Neutral Pilot Pressure	550 ± 35 kPa (80 ± 5 psi)
	Pilot Control Valve Supply Pressure	3500 ± 250 kPa (500 ± 35 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Steering Neutralizer Valve - Check and Adjust

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Table 28
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Pressed Putty Thickness	12.7 ± 3 mm (0.5 ± 0.12 inch)

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N = Normal, M = Monitor, A = Action

Brake and Hydraulic Fan System

ReferenceRefer to Testing & Adjusting, RENR8875, "Braking and Hydraulic Fan System" for more detail on the following tests.

Brake Accumulator - Test and Charge

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Table 29
Accumulator Precharge Pressure/Temperature Relationship for a Typical 6200 kPa (900 psi) Brake Accumulator
Temperature	Pressure 6200 kPa (900 psi)
−7°C (20°F)	5616 kPa (815 psi)
−1°C (30°F)	5733 kPa (832 psi)
4°C (40°F)	5850 kPa (849 psi)
10°C (50°F)	5967 kPa (866 psi)
16°C (60°F)	6084 kPa (883 psi)
21°C (70°F)	6201 kPa (900 psi)
27°C (80°F)	6318 kPa (917 psi)
32°C (90°F)	6435 kPa (934 psi)
38°C (100°F)	6552 kPa (951 psi)
43°C (110°F)	6669 kPa (968 psi)
49°C (120°F)	6786 kPa (985 psi)

Control Manifold (Charging Valve for the Brake Accumulators) - Test and Adjust

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Table 30
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Cutout Pressure	15000 ± 350 kPa (2200 ± 50 psi)
	Cut-in Pressure	12800 ± 345 kPa (1850 ± 50 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Service Brake System Pressure - Test

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Table 31
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Rear Service Brake Pressure (Brake ON)	8625 ± 350 kPa (1250 ± 50 psi)
	Front Service Brake Pressure (Brake ON)	8625 ± 350 kPa (1250 ± 50 psi)

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^( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic Fan Speed - Test and Adjust

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Table 32
Status ⁽¹⁾	Description	Specification	Actual	Comments
	Margin Pressure at LOW IDLE	1800 ± 100 kPa (260 ± 15 psi)
	High Pressure Cutoff at HIGH IDLE	18800 kPa (2700 psi)
	Maximum Fan Speed at HIGH IDLE	1400 ± 50 rpm
	Maximum Fan Speed at HIGH IDLE for Variable Pitch Fan	1500 ± 50 rpm
	Minimum Fan Speed at HIGH IDLE	575 ± 125 rpm
	Minimum Fan Speed at HIGH IDLE for Variable Pitch Fan	575 ± 125 rpm

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^( 1 )

N = Normal, M = Monitor, A = Action

S·O·S Samples

ReferenceRefer to Operation and Maintenance Manual, SEBU7889, "Maintenance Interval Schedule" for more detail on performing S.O.S samples.

Engine Oil Sample

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Table 33
Status ⁽¹⁾	Description	Obtain	Comments
	Engine Oil Sample

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^( 1 )

N = Normal, M = Monitor, A = Action

Engine Coolant Sample

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Table 34
Status ⁽¹⁾	Description	Obtain	Comments
	Engine Coolant Sample

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^( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic Oil Sample

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Table 35
Status ⁽¹⁾	Description	Obtain	Comments
	Hydraulic Oil Sample

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^( 1 )

N = Normal, M = Monitor, A = Action

Differential & Final Drive Oil Samples (Inboard Final Drives)

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Table 36
Status ⁽¹⁾	Description	Obtain	Comments
	Front Differential & Final Drive Oil Sample
	Rear Differential & Final Drive Oil Sample

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^( 1 )

N = Normal, M = Monitor, A = Action

Differential & Final Drive Oil Samples (Outboard Final Drives)

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Table 37
Status ⁽¹⁾	Description	Obtain	Comments
	Front Differential Oil Sample
	Rear Differential Oil Sample
	Left Front Final Drive Oil Sample
	Right Front Final Drive Oil Sample
	Left Rear Final Drive Oil Sample
	Right Rear Final Drive Oil Sample