972G Wheel Loader TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565}
- Wheel Loader:
- 972G (S/N: 1EW1-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.
- Click format to print.
- Save the document as an HTML format.
- Open the document with Microsoft Word.
Electrical System
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| 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, SENR5594, "Electrical Starting System - Test". | ||
| 14 to 18 V at −7° C (19° F) to 10° C (50° F) |
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| 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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| Status (1) | Description | Specification | Actual | Comments |
|---|---|---|---|---|
| Radiator Pressure Relief (Radiator Cap) (2) | - | |||
| Freezing Point of Engine Coolant | - | |||
| Conditioner Test of Engine Coolant | - | |||
| Belt Tension | 400 ± 44 N (90 ± 10 lb) |
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| Difference between the Upper and Lower Radiator Tank Temperatures | 7° + 5° - 5° C (45° + 41°- 41° F) |
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| Jacket Water Inlet Temperature from Cooling System | 89° + 3°- 3° C (192° + 37° - 37° F) |
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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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| Status (1) | Description | Specification | Actual | Comments |
|---|---|---|---|---|
| Fuel System Pressure at HIGH IDLE | 295 + 79 - 109 kPa (43 + 11 - 16 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Basic Engine
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| Status (1) | Description | Specification | Actual | Comments |
|---|---|---|---|---|
| Engine Speed at Low Idle | 960 ± 10 rpm | |||
| Engine Speed at High Idle | 2360 ± 60 rpm |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Lubrication System
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| Status (1) | Description | Specification | Actual | Comments |
| Engine Oil Pressure at LOW IDLE | 215 + 385 - 130 kPa (31 + 56 - 19 psi) |
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| Engine Oil Pressure at HIGH IDLE | 378 + 222 - 178 kPa (55 + 32 - 26 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Air Inlet and Exhaust System
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| Status (1) | Description | Specification | Actual | Comments |
| Torque Converter Oil Temperature | 82° to 93°C (180° to 199°F) |
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| Torque Converter Stall Speed | 2155 ± 65 rpm | |||
| Boost Pressure | 103.4 ± 15.6 kPa (15.0 ± 2.3 psi) |
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| 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) | ||||
| Cylinder # 7 Exhaust Temperature (2) | ||||
| Cylinder # 8 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
ReferenceRefer to Testing & Adjusting, RENR2148, "Electrohydraulic System" for more detail on the following test.
Implement Cycle Time - Check
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| Status (1) | Description | Specification | Actual | Comments |
| Lift Raise Time | 6.3 seconds | |||
| Lift Lower Time | 5.7 seconds | |||
| Dump Time | 2.3 seconds | |||
| Tilt Back Time | 3.1 seconds |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Lift and Tilt Cylinder Drift - Check
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| Status (1) | Description | Specification | Actual | Comments |
| Maximum Implement Drift in 5.0 minutes (2) for Rod Movement of Lift Cylinder | 13.0 mm (0.51 inch) |
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| Maximum Implement Drift in 2.7 minutes (3) for Rod Movement of Lift Cylinder | 13.0 mm (0.51 inch) |
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| Maximum Implement Drift in 1.7 minutes (4) for Rod Movement of Lift Cylinder | 13.0 mm (0.51 inch) |
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| Maximum Implement Drift in 5.0 minutes (2) for Rod Movement of Tilt Cylinder | 19.0 mm (0.75 inch) |
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| Maximum Implement Drift in 2.7 minutes (3) for Rod Movement of Tilt Cylinder | 19.0 mm (0.75 inch) |
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| 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° ± 3°C (100° ± 5°F). |
| ( 3 ) | Oil temperature between 49° ± 3°C (120° ± 5°F). |
| ( 4 ) | Oil temperature between 66° ± 3°C (150° ± 5°F). |
Brake Performance Checks
ReferenceRefer to Testing & Adjusting, RENR2112, "Braking System" for more detail on the following test.
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| 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, RENR2109, "Steering System" for more detail on the following test.
Steering Time - Check - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Left Steering Time for a Full Turn from Stop to Stop (HIGH IDLE) | 3.0 ± 0.3 seconds | |||
| Right Steering Time for a Full Turn from Stop to Stop (HIGH IDLE) | 3.0 ± 0.3 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 |
Hydraulic System
ReferenceRefer to Testing & Adjusting, RENR2148, "Electrohydraulic System" for more detail on the following test.
Pilot System Pressure - Test
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| Status (1) | Description | Specification | Actual | Comments |
| Pilot System Pressure at HIGH IDLE | 3450 ± 200 kPa (500 ± 29 psi) |
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| Pilot System Pressure at Engine OFF | 2070 ± 200 kPa (300 ± 29 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Relief Valve (Main) - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Main Relief Valve Pressure for Standard Machine | 20700 kPa (3000 psi) |
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| Main Relief Valve Pressure for Logging Machine | 19000 kPa (2750 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Pilot Pressure to the Main Control Valve - Check
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| Status (1) | Description | Specification | Actual | Comments |
| Pilot Pressure at LOW IDLE | 2124 ± 150 kPa (308 ± 45 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Relief Valve (Line) - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Main Relief Valve Pressure for Standard Machine | 20700 ± 340 kPa (3000 ± 50 psi) |
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| Main Relief Valve Pressure for Logging Machine | 19000 + 500 - 200 kPa (2750 + 75 - 30 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
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| Status (1) | Description | Specification | Actual | Comments | |
| Head End | Rod End | ||||
| Line Relief Valve Pressure (Tilt) | 22750 ± 400 kPa (3300 ± 60 psi) |
22750 ± 400 kPa (3300 ± 60 psi) |
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| Line Relief Valve Pressure (Auxiliary) | 20700 ± 400 kPa (3000 ± 60 psi) |
12400 ± 400 kPa (1800 ± 60 psi) |
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| Line Relief Valve Pressure (Logging) | 26000 ± 400 kPa (3800 ± 60 psi) |
22750 ± 400 kPa (3300 ± 60 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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| 972G Accumulator Precharge Pressure/Temperature Relationship for a Typical Ride Control Accumulator with a Precharge of 2960 kPa (430 psi) |
|
| Temperature | Pressure (1) |
−7°C (20°F) |
2690 kPa (390 psi) |
−1°C (30°F) |
2745 kPa (398 psi) |
4°C (40°F) |
2800 kPa (406 psi) |
10°C (50°F) |
2855 kPa (414 psi) |
16°C (60°F) |
2910 kPa (422 psi) |
21°C (70°F) |
2960 kPa (430 psi) |
27°C (80°F) |
3020 kPa (438 psi) |
32°C (90°F) |
3075 kPa (446 psi) |
38°C (100°F) |
3130 kPa (454 psi) |
43°C (110°F) |
3185 kPa (462 psi) |
49°C (120°F) |
3240 kPa (470 psi) |
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| ( 1 ) | Nominal allowable tolerance equals ± 35 kPa (± 5 psi). |
Power Train System
ReferenceRefer to Testing & Adjusting, RENR2105, "Power Train System" for more detail on the following tests.
Tire Pressure
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| 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, RENR2105, "Torque Converter Stall - Test" for further instruction.
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| Status (1) | Description | Specification | Actual | Comments |
| Torque Converter Stall Speed | 2155 ± 95 RPM |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Transmission Pressures - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Number 1 clutch pressure at HIGH IDLE | 2760 ± 70 kPa (400 ± 10 psi) |
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| Number 2 clutch pressure at HIGH IDLE | 2760 ± 70 kPa (400 ± 10 psi) |
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| Number 3 clutch pressure at HIGH IDLE | 2410 ± 70 kPa (350 ± 10 psi) |
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| Number 4 clutch pressure at HIGH IDLE | 2410 ± 70 kPa (350 ± 10 psi) |
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| Number 5 clutch pressure at HIGH IDLE | 2210 ± 70 kPa (320 ± 10 psi) |
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| Number 6 clutch pressure at HIGH IDLE | 2550 ± 70 kPa (370 ± 10 psi) |
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| Transmission Lubrication Oil Pressure at LOW IDLE | 105 kPa (15 psi) minimum |
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| Torque Converter Outlet Pressure | 415 ± 135 kPa (60 ± 20 psi) |
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| Torque Converter Inlet Pressure | 550 kPa (80 psi) |
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| Transmission Oil Pump Pressure | 2897 ± 70 kPa (420 ± 10 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Steering System
ReferenceRefer to Testing & Adjusting, RENR2109, "Steering System" for more detail on the following tests.
Steering System Pressure (High Pressure Stall) - Test - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Steering System Pressure (High Pressure Stall) at HIGH IDLE | 21000 ± 350 kPa (3050 ± 50 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Piston Pump (Steering) Margin Pressure - Test - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Piston Pump (Steering) Margin Pressure at HIGH IDLE | 2400 ± 100 kPa (350 ± 15 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Piston Pump (Steering) Margin Pressure - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Margin Pressure | 2400 ± 100 kPa (350 ± 15 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Relief Valve (Pump Backup) - Test and Adjust - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Relief Valve (Pump Backup) Pressure | 23500 ± 690 kPa (3400 ± 100 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Steering Pilot System Pressure - Test - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Left Steering Pilot System Pressure | 1600 to 1875 kPa (230 to 272 psi) |
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| Right Steering Pilot System Pressure | 1600 to 1875 kPa (230 to 272 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Pilot Valve (Steering) Supply Pressure - Test and Adjust - Command Control Steering
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| Status (1) | Description | Specification | Actual | Comments |
| Neutral Pilot Pressure | 600 ± 35 kPa (87 ± 5 psi) |
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| Steering Pilot 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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| Status (1) | Description | Specification | Actual | Comments |
| Pressed Putty Thickness | 12.7 ± 3 mm (0.5 ± 0.12 inch) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Brake and Hydraulic Fan System
ReferenceRefer to Testing & Adjusting, RENR2148, "Electrohydraulic System", and Testing & Adjusting, RENR2112, "Braking System" for more detail on the following tests.
Fan Drive Speed - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Fan Drive Speed at HIGH IDLE (2) | 1140 ± 25 rpm | |||
| Fan Drive Speed at HIGH IDLE (2) | 1025 ± 25 rpm |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
| ( 2 ) | If the machine is equipped with an air conditioning system. |
| ( 2 ) | If the machine is not equipped with an air conditioning system. |
Fan Drive Speed (On Demand Fan) - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Low Fan Speed | 480 ± 20 rpm | |||
| High Fan Speed | 1135 ± 25 rpm | |||
| Fan Drive Speed at HIGH IDLE | 2350 ± 60 rpm |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Brake Accumulator - Test and Charge
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| Accumulator Precharge Pressure/Temperature Relationship for the 5520 kPa (800 psi) Service Brake Accumulators |
|
| Temperature | Pressure |
−7°C (20°F) |
5000 kPa (726 psi) |
−1°C (30°F) |
5105 kPa (741 psi) |
4°C (40°F) |
5235 kPa (760 psi) |
10°C (50°F) |
5340 kPa (775 psi) |
16°C (60°F) |
5420 kPa (787 psi) |
21°C (70°F) |
5500 kPa (798 psi) |
27°C (80°F) |
5605 kPa (813 psi) |
32°C (90°F) |
5735 kPa (832 psi) |
38°C (100°F) |
5840 kPa (848 psi) |
43°C (110°F) |
5920 kPa (859 psi) |
49°C (120°F) |
6000 kPa (871 psi) |
Accumulator Charging Valve (Brake) - Test and Adjust
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| Status (1) | Description | Specification | Actual | Comments |
| Cut-out Pressure | 14500 ± 345 kPa (2100 ± 50 psi) |
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| Cut-in Pressure | 11700 ± 345 kPa (1700 ± 50 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Service Brake System Pressure - Test
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| Status (1) | Description | Specification | Actual | Comments |
| Rear Service Brake Pressure (Brake ON) | 4690 ± 350 kPa (680 ± 50 psi) |
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| Front Service Brake Pressure (Brake ON) | 4690 ± 350 kPa (680 ± 50 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
S·O·S Samples
ReferenceRefer to Operation and Maintenance Manual, SEBU7035, "Maintenance Interval Schedule" for more detail on performing S.O.S samples.
Engine Oil Sample
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| 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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| 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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| 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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| 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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| 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 |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Transmission/Torque Converter Oil Sample
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| Status (1) | Description | Obtain | Comments |
| Transmission/Torque Converter Oil Sample |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
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