950M and 962M Wheel Loader TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565} Caterpillar

950M and 962M Wheel Loader TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565}

Usage:

950M ENE

Wheel Loader: 950M (S/N: ENE1-UP; LCR1-UP); 962M (S/N: LSE1-UP; RCL1-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

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Electrical System

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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).	Refer to Operation and Maintenance Manual, SEBU9315, "Battery or Battery Cable - Inspect/Replace"
Battery Test	12 VDC	Refer to Special Instruction, SEHS7633, "Battery Test Procedure".
Charging System Test		Refer to System Operation/Testing and Adjusting, UENR3387 Refer to Special Instruction, REHS0354
Electric Starting System Test		Refer to System Operation/Testing and Adjusting, UENR3387

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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⁾		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	535 N (120 lb) for new belts. 355 N (80 lb) for used belts.	Auto Adjust Belt Tensioner
Difference between the Upper and Lower Radiator Tank Temperatures

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

Fuel System

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Table 3
Status⁽¹⁾	Description	Specification	Actual	Comments
	Maximum Fuel Pressure of the High-Pressure Fuel System	200 MPa (29000 psi)

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

Lubrication System

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Table 4
Status⁽¹⁾	Description	Specification	Actual	Comments
	Minimum Oil Pressure at the Maximum Engine Speed and at Normal Operating Temperature	315 kPa (45 psi)

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

Basic Engine

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Table 5
Description	Specification	Comments
Engine Speed at Low Idle	800 RPM
Engine Speed at High Idle	2340 RPM
Torque Converter Stall Test Engine RPM for 950 M	1980 + 10/ - 20 RPM
Torque Converter Stall Test Engine RPM for 962 M	2020 + 10/ - 20 RPM
Cylinder Cutout Test		Caterpillar Electronic Technician

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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
	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⁾

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

Hydraulic Performance Checks

Reference: Refer to Testing & Adjusting, M0067704 for more detail on the following test.

Implement Cycle Time-Check (No Load - High Idle)

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Table 7
Status⁽¹⁾	Description	Specification	Actual	Comments
	950 MLift Raise	5.9 +/- 0.5 sec
	962 MLift Raise	6.0 +/- 0.5 sec
	950 M Lift Lower	3.1 + 1.0 / - 0.5 sec
	962 M Lift Lower	3.7 + 1.0 / - 0.5 sec
	950 M Float	2.3 + 1.0 / - 0.5 sec
	962 M Float	2.7 + 1.0 /- 0.5 sec
	950 M Dump	2.0 +/- 0.5 sec
	962 M Dump	2.0 +/- 0.5 sec
	950 M Rack Back	2.5 +/- 0.5 sec
	962 M Rack Back	2.6 +/- 0.5 sec

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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
	Oil Temperature	62° ± 8°C (112° ± 14 °F) - 62° ± 8°C (112° ± 14 °F)
	Lift Cylinder	8 mm (0.3 inch) in 2.5 Minutes
	Tilt Cylinder	8 mm (0.3 inch) in 2.5 Minutes

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

Brake Performance Checks

Reference: Refer to Testing & Adjusting, M0067704 for more detail on the following test.

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

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

Steering Performance Checks

Reference: Refer to Testing & Adjusting, M0067704 for more detail on the following test.

Steering Time - Check

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Table 10
Status⁽¹⁾	Description	Specification	Actual	Comments
	Left Steering Time (EH System)	3.1 ± 0.5 seconds
	Right Steering Time (EH System)	3.1 ± 0.5 seconds
	Left Steering Time (HMU System)	2.4± 0.5 seconds
	Right Steering Time (HMU System)	2.4± 0.5 seconds

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

Hydraulic System

Reference: Refer to Testing & Adjusting, M0067704, "Hydraulic System" for more detail on the following test.

Implement Piston Pump Discharge Pressure

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Table 11
Status⁽¹⁾	Description	Specification	Actual	Comments
	Implement Pump Discharge Pressure	29300 ± 700 kPa (4250 ± 100 psi)

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

Implement Piston Pump Margin Pressure

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Table 12
Status⁽¹⁾	Description	Specification	Actual	Comments
	Implement Piston Pump Margin Pressure	2100 kPa (305 psi)

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

Pilot Pressure to the Main Control Valve

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Table 13
Status⁽¹⁾	Description	Specification	Actual	Comments
	Pilot Pressure to the Main Control Valve	3650 ± 350 kPa (529 ± 50 psi)

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

Pilot Oil Accumulator - Test

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Table 14
Status⁽¹⁾	Description	Specification	Actual	Comments
	Oil Temperature	60° C (140° F) - 69° C (156° F)
	Accumulator Precharge	1000 ± 50 kPa (145 ± 10 psi)

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

Ride Control Accumulator - Test

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Table 15
Status⁽¹⁾	Description	Specification	Actual	Comments
	Oil Temperature	21° C (70° F)
	Accumulator Precharge High Pressure	6000 kPa (870 psi)
	Accumulator Precharge Low Pressure	2000 kPa (290 psi)

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

Power Train System

Reference: Refer to Testing & Adjusting, M0067704, "Power Train System" for more detail on the following test.

Tire Pressure

The tire inflation pressure for machines that are shipped from the factory is suitable for shipping only. Always obtain the proper tire inflation pressures for your machine from the tire supplier before placing the machine into operation. The recommended tire inflation pressures for the front tires and for the rear tires will vary for each application.

Proper tire inflation pressure and maintenance of the tire inflation pressure is critical for optimum tire life. The tire inflation pressure should always be obtained from the tire supplier due to changes in the technology of tires, equipment, and job applications.

Reference: Refer to the latest edition of Special Publication, "Caterpillar Performance Handbook" for general information on tire inflation pressure.

Transmission Pressures

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Table 16
Transmission Pressures for the 950M and 962M Wheel Loaders
Pressure Tap Number	Description	Specification
Pressure Tap Number	Description	950M	962M
(5) - (6)⁽¹⁾	(ΔP) Pump - Clutch 1	125 ± 100 kPa (18 ± 15 psi)	125 ± 100 kPa (18 ± 15 psi)
(6)⁽¹⁾	Clutch 1 Gauge	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5) - (7)⁽¹⁾	(ΔP) Pump - Clutch 2	125 ± 100 kPa (18 ± 15 psi)	125 ± 100 kPa (18 ± 15 psi)
(7)⁽¹⁾	Clutch 2 Gauge	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5) - (8)⁽¹⁾	(ΔP) Pump - Clutch 3	150 ± 100 kPa (22 ± 15 psi)	150 ± 100 kPa (22 ± 15 psi)
(8)	Clutch 3 Gauge	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5) - (9)⁽¹⁾	(ΔP) Pump - Clutch 4	150 ± 100 kPa (22 ± 15 psi)	150 ± 100 kPa (22 ± 15 psi)
(9)⁽¹⁾	Clutch 4 Gauge	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5) - (10)⁽¹⁾	(ΔP) Pump - Clutch 5	150 ± 100 kPa (22 ± 15 psi)	150 ± 100 kPa (22 ± 15 psi)
(10)	Clutch Gauge 5	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5) - (11)⁽¹⁾	(ΔP) Pump - Clutch 6	150 ± 100 kPa (22 ± 15 psi)	150 ± 100 kPa (22 ± 15 psi)
(11)⁽¹⁾	Clutch 6 Gauge	2200 ± 350 kPa (319 ± 51 psi)	2200 ± 350 kPa (319 ± 51 psi)
(5)- (3)⁽¹⁾	(ΔP) Pump -Lock Up Torque Converter Clutch	100 ± 375 kPa (15 ± 54 psi)	100 ± 375 kPa (15 ± 54 psi)
(3)⁽¹⁾	Lock Up Torque Converter Clutch Gauge	2075 ± 300 kPa (301 ± 44 psi)	2075 ± 300 kPa (301 ± 44 psi)
(4)	Torque Converter Inlet HIGH IDLE Neutral	670 ± 150 kPa (97 ± 22 psi)	670 ± 150 kPa (97 ± 22 psi)
(2)	Torque Converter Outlet HIGH IDLE Neutral	425 ± 150 kPa (62 ± 22 psi)	425 ± 150 kPa (62 ± 22 psi)
(12)	Transmission Lubrication HIGH IDLE Neutral	165 ± 90 kPa (24 ± 13 psi)	165 ± 90 kPa (24 ± 13 psi)
(5)	Transmission Pump Test Point 1 - Test Point 2 - Test Point 3 - Test Point 4	2895 to 3225 kPa (420 to 468 psi) 2185 to 2635 kPa (317 to 382 psi) 1350 ± 1995 kPa (196 ± 289 psi) 825 ± 1010 kPa (120 ± 146 psi)	2895 to 3225 kPa (420 to 468 psi) 2185 to 2635 kPa (317 to 382 psi) 1350 ± 1995 kPa (196 ± 289 psi) 825 ± 1010 kPa (120 ± 146 psi)

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⁽¹⁾

The transmission clutch control system can alter the desired clutch pressure under certain conditions for all six transmission clutches and the lock up torque converter clutch. Altering the desired clutch pressure can also affect the pressure difference between the clutch and the transmission pump. The system is functioning normally if the system meets at least one of the two criteria listed in Table 65 for each clutch.

Location of Pressure Taps

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Illustration 1	g03722228
Transmission clutch pressure taps are located on the right-hand side of the machine. (1) Steering load signal pressure tap (2) Torque converter outlet pressure tap (3) Lock up clutch pressure tap (4) Torque converter inlet pressure tap (5) Transmission Pump Pressure (eMRV)"Second Speed" (6) Transmission pressure tap for clutch 1"Forward - Low" (7) Transmission pressure tap for clutch 2"Forward - High" (8) Transmission pressure tap for clutch 3"Reverse" (9) Transmission pressure tap for clutch 4 (10) Transmission pressure tap for clutch 5 (11) Transmission pressure tap for clutch 6

Steering System

Reference: Refer to Testing & Adjusting, M0067704, "Steering System" for more detail on the following test.

Piston Pump (Steering) High-Pressure Stall - Test

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Table 17
Status⁽¹⁾	Description	Specification	Actual	Comments
	Piston Pump (Steering) High-Pressure Stall - Test	23400 ± 700 kPa (3395 ± 102 psi)

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

Piston Pump (Steering) Margin Pressure - Test

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Table 18
Status⁽¹⁾	Description	Specification	Actual	Comments
	Margin Pressure	2400 ± 100 kPa (348 ± 15 psi)

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

Steering Pilot System Pressure - Check

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Table 19
Status⁽¹⁾	Description	Specification	Actual	Comments
	Steering Pilot System Pressure-Check	3650 ± 350 kPa (530 ± 50 psi)

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

Relief Valve (Pump Backup) - Test

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Table 20
Status⁽¹⁾	Description	Specification	Actual	Comments
	Relief Valve (Pump Backup) - Test	30600 ± 400 kPa (4438 ± 58 psi)

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

Steering Cylinder Crossover Relief Valve - Test

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Table 21
Status⁽¹⁾	Description	Specification	Actual	Comments
	Steering Cylinder Crossover Relief Valve - Test	30600 ± 400 kPa (4438 ± 58 psi)

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

Steering Neutralizer Valve - Check

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Table 22
950M and 962M Steering Neutralizer Strikers
Date	Equipment ID Code
Pump Pressure	Setting	Actual
Distance Between Front and Rear Frame	10 ± 3 mm (0.4 ± 0.1 inch)

Brake and Hydraulic Fan System

Reference: Refer to Testing & Adjusting, M0067704 for more detail on the following test.

Brake Accumulator Precharging Pressure

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Table 23
950M 962M Brake Accumulator charging valve pressure
Date	Equipment ID Code
Pump Pressure	Setting	Actual
Cut-In pressure	12850 ± 700 kPa (1865 ± 102 psi)
Cut-Out pressure	17290 ± 600 -900 kPa (2508 ± 87 - 130 psi)

Service Brake System Pressure - Test

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Table 24
Status⁽¹⁾	Description	Specification	Actual	Comments
	Rear Service Brake Pressure (Brake ON)	8790 ± 350 kPa (1275 ± 51 psi)
	Front Service Brake Pressure (Brake ON)	8687 + 450 - 350 kpa (12602 + 65 - 50 psi

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

Service Brake Wear Indicator

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Table 25
Status⁽¹⁾	Description	Specification	Actual	Comments
	Right Front Indicator Depth	1.05 mm (0.04 inch)
	Left Front Indicator Depth	1.05 mm (0.04 inch)
	Right Rear Indicator Depth	1.05 mm (0.04 inch)
	Left Rear Indicator Depth	1.05 mm (0.04 inch)

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

Hydraulic Fan (If Equipped)

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Table 26
Status⁽¹⁾	Description	Specification	Actual	Comments
	Max Fan Speed	1620 ± 50 RPM
	Minimum Fan Speed	500 ± 50 RPM
	Margin Pressure (High Idle)	2100 kPa (305 psi)
	High-Pressure cutoff (High Idle)	21000 - 2000 kpa / +3000 kpa (3046-290 psi/ + 435 psi)

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

Differential Lock Engagement Check

Refer to Testing & Adjusting, M0067704 for more detail on the following test.

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Table 27
Worksheet
Target Pressure	Actual Pressure
3100 ± 300 kPa (450 ± 44 psi)

S·O·S Samples

Reference: Refer to Operation and Maintenance Manual, M0067704, "Maintenance Interval Schedule" for more detail on performing S.0.S samples.

Engine Oil Sample

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Table 28
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 29
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 30
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 31
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 32
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