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980L Wheel Loader TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565} Caterpillar


980L Wheel Loader TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565}

Usage:

980L D8Z
Wheel Loader
980L (S/N: D8Z1-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.

  1. Click format to print.

  2. Save the document as an HTML format.

  3. Open the document with Microsoft Word.

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).    Refer to Operation and Maintenance Manual, SEBU9340, "Battery or Battery Cable - Clean/Inspect/Replace". 
  Battery Test  12 VDC    Refer to Special Instruction, SEHS7633, "Battery Test Procedure". 
  Charging System Test      Refer to Special Instruction, REHS0354, "Charging System Troubleshooting" 
  Electric Starting System Test      Refer to Testing and Adjusting, RENR6331, "Electric System - Test" 
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(1) N = Normal, M = Monitor, A = Action

Engine

Cooling System

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Table 2
Status(1)  Description  Specification  Actual  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  801 ± 44 N (180 ±10 lb) for new belts.
378 ± 44 N (85 ± 10 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 
  Fuel Pressure of the Low-Pressure Fuel System at Idle Speed  586 kPa (85 psi)     
  Maximum Fuel Pressure of the High-Pressure Fuel System  34500 kPa (5004 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  275 kPa (40 psi)     
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(1) N = Normal, M = Monitor, A = Action

Basic Engine

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Table 5
Status(1)  Description  Specification  Actual  Comments 
  Engine Speed at Low Idle       
  Engine Speed at High Idle       
  Torque Converter Stall Test Engine RPM for 980 L  1973 + 10 - 65 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, M0067734 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 
  Raise Cycle Time 980 L  6.5 +/- 0.5 sec     
  Lower Cycle Time 980 L  3.8 +/- 0.5 sec     
  Float Cycle Time 980 L  3.3 +/ - 0.5 sec     
  Dump Cycle Time 980 L  2.4 +/ - 0.5 sec     
  Dump Cycle Time 980 L Logger  2.8 +/ - 0.5 sec     
  Rack Back Cycle Time 980 L  2.6 + /- 0.5 sec     
  Rack Back Cycle Time 980 L Logger  3.7 +/ - 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  8.0 mm (0.32 inch) in 2.5 minutes     
  Tilt Cylinder  8.0 mm (0.32 inch) in 2.5 minutes     
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(1) N = Normal, M = Monitor, A = Action

Brake Performance Checks

Reference: Refer to Testing & Adjusting, M0067734 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, M0067734 for more detail on the following test.

Steering Time - Check

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Table 10
Status(1)  Description  Specification  Actual  Comments 
  Steering Time (High Idle)  3.0 ± 0.3 seconds     
  Steering Time (High Idle)  6.0 ± 0.3 seconds     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic System

Reference: Refer to Testing & Adjusting, M0067734, "Hydraulic System" for more detail on the following test.

Piston Pump (Implement)

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Table 11
Status(1)  Description  Specification  Actual  Comments 
  Discharge Pressure  34300 ± 700 kPa (4975 ± 102 psi)     
  Load Sense Pressure  31900 ± 700 kPa (4627 ± 102 psi)     
  Margin Pressure  2400 ± 100 kPa (348 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Pilot Pressure to the Main Control Valve

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Table 12
Status(1)  Description  Specification  Actual  Comments 
  Pilot Pressure to the Main Control Valve  2400 kPa (348 psi)     
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(1) N = Normal, M = Monitor, A = Action

Load Sensing Relief Valve Pressure

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Table 13
Status(1)  Description  Specification  Actual  Comments 
  Pressure setting for load sensing signal relief valve  31900 ± 500 kPa (4627 ± 73 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 
  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  2300 ± 100 kPa (334 ± 15 psi)     
  Accumulator Precharge Low Pressure  7500 ± 200 kPa (1088 ± 29 psi)     
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(1) N = Normal, M = Monitor, A = Action

Ride Control Activation Speed

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Table 16
Status(1)  Description  Specification  Actual  Comments 
  Engagement Speed  2 ± 23 km/h (1.2 ± 14.3 mph)     
  Factory Setting Activation Speed (Forward)  9.7 km/h (6.0 mph)     
  Factory Setting Activation Speed (Reverse)  3.2 km/h (2.0 mph)     
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(1) N = Normal, M = Monitor, A = Action

Power Train System

Reference: Refer to Testing & Adjusting, M0067734, "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 17
Transmission Pressures for the 980L 
Pressure Tap Number  Description  Specification 
(10) - (1)  (ΔP) Pump - Clutch 1  0 ± 100 kPa (0 ± 14.5 psi) 
(10) - (2)  (ΔP) Pump - Clutch 2  0 ± 100 kPa (0 ± 14.5 psi) 
(10) - (3)  (ΔP) Pump - Clutch 3  0 ± 100 kPa (0 ± 14.5 psi) 
(10) - (4)  (ΔP) Pump - Clutch 4  0 ± 100 kPa (0 ± 14.5 psi) 
(10) - (5)  (ΔP) Pump - Clutch 5  0 + 100 kPa (0 + 14.5 psi)
- 250 kPa (- 36 psi) 
(5)  Clutch Gauge 5  2350 ± 350 kPa
(340 ± 50 psi) 
(10) - (6)  (ΔP) Pump - Clutch 6  0 ± 100 kPa (0 ± 14.5 psi) 
(7)  Torque Converter Inlet HIGH IDLE Neutral  760 ± 150 kPa (110 ± 22 psi) 
(8)  Torque Converter Outlet HIGH IDLE Neutral  490 ± 150 kPa (71 ± 22 psi) 
(9)  Transmission Lubrication HIGH IDLE Neutral  200 ± 95 kPa (29 ± 14 psi) 
(10)  Transmission Pump
Test Point 1
-
Test Point 2
-
Test Point 3
-
Test Point 4 		 3450 kPa - 3000 kPa
(500 psi - 435 psi)
2825 kPa - 2275 kPa
(409 psi - 329 psi)
2050 kPa - 1200 kPa
(297 psi - 174 psi)
1210 kPa - 910 kPa
(175.5 psi - 132 psi) 
(11)  Lock up clutch pressure  2600 ± 345 kPa
(377 ± 50 psi) 

Location of Pressure Taps

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Illustration 1g03659147
Left side of machine
(1) Transmission pressure tap for clutch 1 "Reverse"
(2) Transmission pressure tap for clutch 2 "Forward"
(3) Transmission pressure tap for clutch 3 "Forth Speed"
(4) Transmission pressure tap for clutch 4 "Third Speed"
(5) Transmission pressure tap for clutch 5 "Second Speed"
(6) Transmission pressure tap for clutch 6 "First Speed"
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Illustration 2g03659131
Right side of machine
(7) Torque converter inlet pressure tap
(8) Torque converter outlet pressure tap
(9) Transmission lubrication pressure tap
(10) Transmission pump pressure tap
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Illustration 3g03659165
Left side of torque converter housing
(11) Lock up clutch pressure tap

Steering System

Reference: Refer to Testing & Adjusting, M0067734, "Steering System" for more detail on the following test.

Piston Pump (Steering) High-Pressure Stall - Test

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Table 18
Status(1)  Description  Specification  Actual  Comments 
  Piston Pump (Steering) High-Pressure Stall - Test  27580 ± 700 kPa (4000 ± 102 psi)     
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(1) N = Normal, M = Monitor, A = Action

Piston Pump (Steering) Margin Pressure - Test

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Table 19
Status(1)  Description  Specification  Actual  Comments 
  Margin Pressure  1600 ± 100 kPa (232 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Steering Cylinder Work Port) - Test

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Table 20
Status(1)  Description  Specification  Actual  Comments 
  Relief Valve (Steering Cylinder Work Port)  30600 ± 400 kPa (4438 ± 58 psi)     
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(1) N = Normal, M = Monitor, A = Action

Pressure Limiter (Auxiliary Valve) - Test

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Table 21
Status(1)  Description  Specification  Actual  Comments 
  Auxiliary Pressure Limiter  22080 ± 800 kPa (3203 ± 116 psi)     
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(1) N = Normal, M = Monitor, A = Action

Relief Valve (Pump Back up) - Test

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Table 22
Status(1)  Description  Specification  Actual  Comments 
  Steering Backup Relief Valve  30600 ± 400 kPa (4438 ± 58 psi)     
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(1) N = Normal, M = Monitor, A = Action

Brake and Hydraulic Fan System

Reference: Refer to Testing & Adjusting, M0067734 for more detail on the following test.

Brake Accumulator Precharging Pressure

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Table 23
950K 962K Brake Accumulator charging valve pressure 
Date  Equipment ID Code 
Pump Pressure  Setting  Actual 
Cut-In pressure  15500 ± 345 kPa (2248 ± 50 psi)   
Cut-Out pressure  18900 ± 1700 kPa (2741 ± 247 psi)   

Service Brake Wear Indicator

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Table 24
Status(1)  Description  Specification  Actual  Comments 
  Right Front Indicator Depth  1.50 mm (0.060 inch)     
  Left Front Indicator Depth  1.50 mm (0.060 inch)     
  Right Rear Indicator Depth  1.50 mm (0.060 inch)     
  Left Rear Indicator Depth  1.50 mm (0.060 inch)     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic Fan (If Equipped)

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Table 25
Status(1)  Description  Specification  Actual  Comments 
  Max Fan Speed  1400 ± 30 RPM     
  Minimum Fan Speed  500 ± 50 RPM     
  Margin Pressure (High Idle)  1600 ± 100 kPa (232 ± 14 psi)     
  High-Pressure cut off (High Idle)  22500 ± 700 kPa (3263 ± 102 psi)     
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(1) N = Normal, M = Monitor, A = Action

Piston Pump Cutoff Pressure (Hydraulic Fan) - Test

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Table 26
Status(1)  Description  Specification  Actual  Comments 
  High-Pressure Cut off (High Idle)  22500 ± 700 kPa (3263 ± 102 psi)     
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(1) N = Normal, M = Monitor, A = Action

Piston Pump Margin Pressure (Hydraulic Fan) - Test

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Table 27
Status(1)  Description  Specification  Actual  Comments 
  Margin Pressure (High Idle)  1600 ± 100 kPa (232 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Quick Coupler Pressure- Test

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Table 28
Status(1)  Description  Specification  Actual  Comments 
  Quick Coupler Pressure  16000 ± 750 kPa (2321 ± 109 psi)     
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(1) N = Normal, M = Monitor, A = Action

S·O·S Samples

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

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Table 29
Status(1)  Description  Obtain  Comments 
  Engine Oil Sample     
  Engine Coolant Sample (Level II)     
  Hydraulic Oil Sample     
  Transmission Oil Sample     
  Front Right Final Drive Oil Sample     
  Front Left Final Drive Oil Sample     
  Rear Right Final Drive Oil Sample     
  Rear Left Final Drive Oil Sample     
  Front Axle/Diff Oil Sample     
  Center Axle/Diff Oil Sample     
  Rear Axle/Diff Oil Sample     
  Transfer Case Oil Sample     
  Brake Fluid Oil Sample     
  Power Steering Oil Sample     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

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