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631K OEM Wheel Tractor TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565} Caterpillar


631K OEM Wheel Tractor TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565}

Usage:

631K WT4
Wheel Tractor-Scraper
631K (S/N: WT41-UP)

Introduction

Inspections are the most basic form of condition monitoring. The 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 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 to prevent stress on battery connections (terminals).     
  Battery Test  12.4 VDC or more    Refer to Testing & Adjusting, UENR3351, "Battery Test Procedure". 
  Charging System Test  18 VDC to 32 VDC    Refer to Testing & Adjusting, UENR3351, "Charging System Troubleshooting". 
  Electric Starting System Test  12 to 16 V at −23° C (−10° F) to −7° C (19° F)    Refer to Testing & Adjusting, UENR3351, "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)
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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)  -     
  Freezing Point of Engine Coolant  -     
  Conditioner Test of Engine Coolant  -     
  Belt Tension  -    Auto Adjust Belt Tensioner 
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(1) N = Normal, M = Monitor, A = Action
(2) Test for the pressure that is listed on the cap.

Fuel System

Reference: Refer to Testing & Adjusting, UENR3351, "Fuel System Pressure - Test" for more detail on the following tests.

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Table 3
Status(1)  Description  Specification  Actual  Comments 
  Fuel Pressure  496 kPa (72 psi) to 986 kPa (143 psi)     
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(1) N = Normal, M = Monitor, A = Action

Lubrication System

Reference: Refer to Testing & Adjusting, UENR3351, "Engine Oil Pressure - Test" for more detail on the following tests.

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Table 4
Status(1)  Description  Specification  Actual  Comments 
  Engine Oil Pressure at Low Idle  103 kPa (15 psi) to 152 kPa (22 psi)     
  Engine Oil Pressure at Full Load Speed  275 kPa (40 psi) to 400 kPa (58 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  740 rpm to 760 rpm     
  Engine Speed at High Idle  2110 rpm to 2130 rpm     
  Torque Check Engine Speed  1290 rpm to 1310 rpm     
  Boost Pressure At Torque Check Engine Speed  N/A     
  Cylinder Cutout Test  -     
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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.

Performance Checks

Reference: Refer to Testing & Adjusting, M0084413 for more detail on the following tests.

Brake Performance Checks

Reference: Refer to Operation and Maintenance Manual, M0084401, "Braking System - Test" for more detail on the following tests.

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Table 7
Status(1)  Description  Specification  Actual  Comments 
  Service Brake Test (Test from OMM)  1200 rpm     
  Parking Brake Test (Test from OMM)  900 rpm     
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(1) N = Normal, M = Monitor, A = Action

Secondary Steering Performance Checks

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Table 8
Status(1)  Description  Specification  Actual  Comments 
  Three Second Powerup Test  -     
  Secondary Steering Response Test - Steer Right (Stop to Stop)  -     
  Secondary Steering Response Test - Steer Left (Stop to Stop)  -     
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(1) N = Normal, M = Monitor, A = Action

Steering Performance Checks

Reference: Refer to Testing & Adjusting, M0084413, "Hydraulic Cylinder Cycle Time - Check" for more detail on the following tests.

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Table 9
Status(1)  Description  Specification  Actual  Comments 
  Steering Wheel Slip Test  25 ± 5°     
  Steering Time Stop to Stop (Full Left to Full Right)  5.0 ± 0.5 seconds     
  Steering Time Stop to Stop (Full Right to Full Left)  5.0 ± 0.5 seconds     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic and Steering System

Steering System

Steering Relief Valve Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Relief Valve (Steering Cylinder Crossover) - Test and Adjust" for more detail on the following tests.

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Table 10
Status(1)  Description  Specification  Actual  Comments 
  LH Turn Pressure  17800 ± 800 kPa (2582 ± 116 psi)     
  RH Turn Pressure  17800 ± 800 kPa (2582 ± 116 psi)     
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(1) N = Normal, M = Monitor, A = Action

Steering Standby Pressure and Steering Pump High-Pressure Cutoff.

Reference: Refer to Testing & Adjusting, M0084413, "Steering System Pressure - Test and Adjust" for more detail on the following tests.

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Table 11
Status(1)  Description  Specification  Actual  Comments 
  Low-Pressure Standby Differential Pressure  2100 ± 100 kPa (305 ± 14.5 psi)     
  High Idle Steering Pump High-Pressure Cutoff  20500 ± 350 kPa (2973 ± 51 psi)     
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(1) N = Normal, M = Monitor, A = Action

Implement Hydraulic System

Pump Control Valve

Reference: Refer to Testing & Adjusting, M0084413, "Pump Control Valve (Cushion-Hitch) - Test and Adjust" for more detail on the following tests.

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Table 12
Status(1)  Description  Specification  Actual  Comments 
  Main Relief Valve - Test       
  Pump Control Valve (Cushion Hitch) - Test(2)  18700 ± 350 kPa (2712 ± 51 psi)     
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(1) N = Normal, M = Monitor, A = Action
(2) The cushion-hitch control switch must be in the OFF position, and the engine speed set at HIGH IDLE.

Hydraulic Fan and Brake System

Reference: Refer to Testing & Adjusting, M0084413 for more details on the following tests.

Hydraulic Fan Speed

Reference: Refer to Testing & Adjusting, M0084413, "Hydraulic Fan Speed - Test" for more detail on the following test.

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Table 13
Status(1)  Description  Specification  Actual  Comments 
  Minimum Fan Speed @ High Idle (HRC Machines)  650 ± 50 RPM     
  Maximum Fan Speed @ High Idle (HRC Machines)  1410 RPM     
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(1) N = Normal, M = Monitor, A = Action

Brake Accumulator Charging Valve

Reference: Refer to Testing & Adjusting, M0084413, "Brake Accumulator Charging Valve - Test" for more detail on the following test.

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Table 14
Status(1)  Description  Specification  Actual  Comments 
  Cut-in Pressure(2)  15000 ± 350 kPa (2176 ± 51 psi)     
  Cut-out Pressure(2)  18000 ± 350 kPa (2610 ± 51 psi)     
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(1) N = Normal, M = Monitor, A = Action
(2) Set engine at LOW IDLE

Service Brake Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Service Brake System Pressure - Test" for more detail on the following test.

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Table 15
Status(1)  Description  Specification  Actual  Comments 
  Front Wheels with brake pedal FULLY depressed  5862 ± 690 kPa (850 ± 100 psi)     
  Maximum front brake pressure within 5 seconds of releasing pedal  140 kPa (20 psi)     
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(1) N = Normal, M = Monitor, A = Action

Parking Brake Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Parking Brake - Test and Adjust" for more detail on the following test.

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Table 16
Status(1)  Description  Specification  Actual  Comments 
  Engine off with parking brake switch ON  Less than 500 kPa (73 psi)     
  Low idle with parking brake switch OFF  4000 ± 172 kPa (580 ± 25 psi)     
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(1) N = Normal, M = Monitor, A = Action

Gear Pump (Brake Cooling)

Reference: Refer to Testing & Adjusting, M0084413, "Gear Pump (Brake Cooling) - Test" for more detail on the following test.

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Table 17
Status(1)  Description  Specification  Actual  Comments 
  Gear Pump (Brake Cooling) Pressure  Greater than 30 kPa (4 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Power Train System

Relief Valve Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Relief Valve (Main) - Test and Adjust (Power Train)" for more detail on the following test.

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Table 18
Status(1)  Description  Specification  Actual  Comments 
  Low Idle  2827 kPa (410 psi) to 3103 kPa (450 psi)     
  High Idle  3034 kPa (440 psi) to 3241 kPa (470 psi)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Transmission Lube Oil Test

Reference: Refer to Testing & Adjusting, M0084413, "Transmission Lubrication Oil Pressure - Test" for more detail on the following test.

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Table 19
Status(1)  Description  Specification  Actual  Comments 
  Low Idle  5 kPa (0.73 psi) to 62 kPa (9 psi)     
  High Idle  100 kPa (15 psi) to 275 kPa (40 psi)     
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(1) N = Normal, M = Monitor, A = Action

Transmission Clutch Pressure Test

Reference: Refer to Testing & Adjusting, M0084413, "Transmission Clutch Pressure - Test" for more detail on the following test.

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Table 20
Status(1)  Description  Specification  Actual  Comments 
  Clutch 1  2965 ± 69 kPa (430 ± 10 psi)     
  Clutch 2  2275 ± 69 kPa (330 ± 10 psi)     
  Clutch 3  2275 ± 69 kPa (330 ± 10 psi)     
  Clutch 4  2275 ± 69 kPa (330 ± 10 psi)     
  Clutch 5  3172 ± 69 kPa (460 ± 10 psi)     
  Clutch 6  2965 ± 69 kPa (430 ± 10 psi)     
  Clutch 7  2965 ± 69 kPa (430 ± 10 psi)     
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(1) N = Normal, M = Monitor, A = Action

Torque Converter Inlet Oil Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Torque Converter Inlet Oil Pressure - Test" for more detail on the following test.

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Table 21
Status(1)  Description  Specification  Actual  Comments 
  Inlet Oil Pressure  930 ± 100 kPa (135 ± 15 psi)     
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(1) N = Normal, M = Monitor, A = Action

Torque Converter Outlet Pressure

Reference: Refer to Testing & Adjusting, M0084413, "Torque Converter Outlet Relief Valve Pressure - Test and Adjust" for more detail on the following test.

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Table 22
Status(1)  Description  Specification  Actual  Comments 
  Outlet Relief Valve Pressure  275 kPa (40 psi) to 480 kPa (70 psi)     
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(1) N = Normal, M = Monitor, A = Action

S.O.S.

Reference: Refer to Operation and Maintenance Manual, M0084401, "Maintenance Section" for more detail and port locations on the following S.O.S. service.

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Table 23
Status(1)  Description  Obtain  Comments 
  Engine Oil Sample  Every 250 hours   
  Hydraulic System Oil Sample  Every 250 hours   
  Transmission Oil Sample  Every 250 hours   
  Differential and Final Drive Oil Sample  Every 500 hours   
  Engine Coolant Sample (Level I)  Every 500 hours   
  Engine Coolant Sample (Level II)  Every 2000 hours   
Show/hide table
(1) N = Normal, M = Monitor, A = Action

Caterpillar Information System:

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