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18M Series 3Motor Grader TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} Caterpillar


18M Series 3Motor Grader TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}

Usage:

18M3 E9W
Motor Grader
18M Series 3 (S/N: E9W1-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).     
  Battery Test  12.45 VDC or more    Refer to Testing and Adjusting, SENR9888, "Battery - Test". 
  Charging System Test      Refer to Testing and Adjusting, SENR9888, "Charging System - Test". 
  Electric Starting System Test      Refer to Testing and Adjusting, SENR9888, "Electric Starting 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  -    Use 245-5829 Coolant/Battery Tester Gp. 
  Conditioner Test of Engine Coolant  -     
  Belt Tension  Auto-Tension     
  Difference between the Upper Radiator Tank Temperature and Lower Radiator Tank Temperature  -     
  Jacket Water Inlet Temperature from Cooling System  -     
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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 at 1800 RPM  586 kPa (85 psi)     
  Fuel Pressure at 600 RPM  690 to 724 kPa (100 to 105 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 
  Engine Oil Pressure at LOW IDLE (600 to 800 RPM)  68 kPa (10 psi)     
  Engine Oil Pressure at 1800 RPM  275 to 414 kPa (40 to 60 psi)     
Automatic Lubrication System 
  Minimum pressure setting for valve stem  1172 kPa (170 psi)     
  Recommended pressure setting for valve stem with pump stalled against pressure  2413 kPa (350 psi)     
  Maximum pressure setting for valve stem  3102 kPa (450 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  800 rpm     
  Engine Speed at HIGH IDLE  2150 rpm     
  Cylinder Cutout Test  -     
  Engine Crankcase Blowby Pressure  -     
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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

Brake Performance Checks

Reference: Refer to Operation and Maintenance Manual, SEBU9228, "Braking System - Test" for more detail on the following test.

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Table 7
Status(1)  Description  Perform  Comments 
  Service Brake Test     
  Parking Brake Test     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic Performance Checks

Reference: Refer to Testing and Adjusting, UENR4633 for more detail on the following tests.

Cylinder Cycle Time - Check

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Table 8
Status(1)  Description  Specification  Actual  Comments 
  Blade Lift - Rod In(2)  3.0 ± 1.0     
  Blade Lift - Rod Out(2)  4.0 ± 1.0     
  Centershift - Rod In(3)  5.5 ± 2.0     
  Centershift - Rod Out(3)  6.5 ± 2.0     
  Wheel Lean - Rod In(3)  2.5 ± 1.0     
  Wheel Lean - Rod Out(3)  2.5 ± 1.0     
  Blade Tip - Rod In(3)  6.0 ± 2.0     
  Blade Tip - Rod Out(3)  5.5 ± 1.5     
  Side Shift - Rod In(3)  16.0 ± 4.0     
  Side Shift - Rod Out(3)  16.0 ± 4.0     
  Ripper (If Equipped) - Rod In(2)  3.5 ± 1.0     
  Ripper (If Equipped) - Rod Out(2)  4.0 ± 1.5     
  Articulation - Left (3)(4)  6.0 ± 1.5     
  Articulation - Right (3)(4)  6.0 ± 1.5     
  Blade Circle - 1/4 rotation  13.0 ± 4.0     
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(1) N = Normal, M = Monitor, A = Action
(2) Cycle times are for a "running distance" of 305 mm (12 inch).
(3) Cycle time is through full travel.
(4) When checking cycle times of these cylinders, operate the machine at high idle and place the transmission control (lever) in the FIRST SPEED position. The differential must be unlocked.

Hydraulic Cylinder Drift - Check

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Table 9
Status(1)  Description  Specification  Actual  Comments 
  Maximum allowable movement for Blade Lift in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  9.0 mm (0.35 inch)     
  Maximum allowable movement for Blade Tip in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  4.0 mm (0.16 inch)     
  Maximum allowable movement for Ripper in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  3.0 mm (0.12 inch)     
  Maximum allowable movement for Wheel Lean in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  3.0 mm (0.12 inch)     
  Maximum allowable movement for Scarifier in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  -     
  Maximum allowable movement for Snow Wing Lift in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  -     
  Maximum allowable movement for Snow Wing Tilt in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  -     
  Maximum allowable movement for Snow Plow Lift in 3 minutes at oil temperature of 38° to 50°C (100 ° to 122°F)  -     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic and Steering System

Reference: Refer to Testing and Adjusting, UENR4633 for more detail on the following test.

Pump Control Valve (Implement, Steering) - Test and Adjust

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Table 10
Status(1)  Description  Specification  Actual  Comments 
  Margin Pressure Test  14.3 ± 1.9 seconds     
  Margin Pressure Adjustment  2100 ± 100 kPa (305 ± 15 psi)     
  Signal Pressure Adjustment  22050 ± 500 kPa (3200 ± 72 psi)     
  Steering Load Sense Pressure  20500 to 21000 kPa (2973 to 3046 psi)     
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(1) N = Normal, M = Monitor, A = Action

Bearing End Play (Piston Pump) - Adjust

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Table 11
Status(1)  Description  Specification  Actual  Comments 
  Shaft end play  0.010 to 0.100 mm (0.0004 to 0.0039 inch)     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic System Pressure - Test and Adjust

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Table 12
Status(1)  Description  Specification  Actual  Comments 
  Relief Valve Pressure Range  27600 ± 400 kPa (4000 ± 60 psi) at a flow of 4.0 L/min (1.10 US gpm)     
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(1) N = Normal, M = Monitor, A = Action

Pilot Pressure - Test and Adjust

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Table 13
Status(1)  Description  Specification  Actual  Comments 
  Pump Discharge Pressure  10000 kPa (1450 psi)     
  Pilot Pressure  4000 ± 200 kPa (580 ± 30 psi)     
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(1) N = Normal, M = Monitor, A = Action

Accumulator (Blade Cushion) - Test and Charge

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Table 14
Charging Pressure and Temperature Relationship for the 2758 kPa (400 psi) Accumulator 
Temperature  Pressure 
-7°C (20°F)  2494 kPa (362 psi) 
-1°C (30°F)  2550 kPa (370 psi) 
4°C (40°F)  2597 kPa (377 psi) 
10°C (50°F)  2653 kPa (385 psi) 
16°C (60°F)  2709 kPa (393 psi) 
21°C (70°F)  2756 kPa (400 psi) 
27°C (80°F)  2812 kPa (408 psi) 
32°C (90°F)  2859 kPa (415 psi) 
38°C (100°F)  2915 kPa (423 psi) 
43°C (110°F)  2962 kPa (430 psi) 
49°C (120°F)  3018 kPa (438 psi) 

Disc Pack Preload for Circle Drive - Adjust

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Table 15
Status(1)  Description  Specification  Actual  Comments 
  Spring Deflection  2.54 ± 0.25 mm (0.100 ± 0.010 inch)     
  Minimum thickness to reuse clutch disk  2.44 mm (0.096 inch)     
  Minimum thickness for friction material  0.20 mm (0.008 inch)     
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(1) N = Normal, M = Monitor, A = Action

Braking and Hydraulic Fan System

Reference: Refer to Testing and Adjusting, UENR4633 for more detail on the following test.

Piston Pump (Brake, Hydraulic Fan) High-Pressure Stall - Test and Adjust

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Table 16
Status(1)  Description  Specification  Actual  Comments 
  High-Pressure Cut off Setting  21000 ± 350 kPa (3046 ± 51 psi)     
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(1) N = Normal, M = Monitor, A = Action

Piston Pump (Brake, Hydraulic Fan) Margin Pressure - Test and Adjust

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Table 17
Status(1)  Description  Specification  Actual  Comments 
  Margin Pressure for Braking and Hydraulic Fan Pump  1800 ± 100 kPa (261 ± 14.5 psi)     
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(1) N = Normal, M = Monitor, A = Action

Hydraulic Fan Speed - Test

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Table 18
Status(1)  Description  Specification  Actual  Comments 
  Minimum Fan Speed  550 ± 50 rpm     
  Maximum Fan Speed - Standard  1450 ± 50 rpm     
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(1) N = Normal, M = Monitor, A = Action

Brake Accumulator Charging Valve - Test and Adjust

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Table 19
Status(1)  Description  Specification  Actual  Comments 
  Cut IN, Pressure  11650 ± 350 kPa (1690 ± 51 psi)     
  Cut OUT, Pressure  17650 to 19950 kPa (2560 to 2893 psi)     
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(1) N = Normal, M = Monitor, A = Action

Brake Accumulator (Service) - Test and Charge

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Table 20
Accumulator Precharge Pressure/Temperature Relationship for a Typical 5516 kPa (800 psi) Brake Accumulator 
Temperature  Pressure(1) 
-10°C (14°F)  4952 kPa (718 psi) 
-5°C (23°F)  5046 kPa (732 psi) 
0°C (32°F)  5140 kPa (745 psi) 
5°C (41°F)  5234 kPa (759 psi) 
10°C (50°F)  5328 kPa (773 psi) 
15°C (59°F)  5422 kPa (786 psi) 
20°C (68°F)  5516 kPa (800 psi) 
25°C (77°F)  5610 kPa (814 psi) 
30°C (86°F)  5704 kPa (827 psi) 
35°C (95°F)  5798 kPa (841 psi) 
40°C (104°F)  5892 kPa (855 psi) 
45°C (113°F)  5896 kPa (868 psi) 
50°C (122°F)  6080 kPa (882 psi) 
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(1) The tolerance on the nominal pressure is 206 kPa (30 psi).

Service Brake System Pressure - Test

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Table 21
Status(1)  Description  Specification  Actual  Comments 
  Left and Right Service Brake Pressures  5909 ± 207 kPa (857 ± 30 psi)     
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(1) N = Normal, M = Monitor, A = Action

Brake Control Valve (Service) - Check

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Table 22
Status(1)  Description  Specification  Actual  Comments 
  Maximum amount that the service brake pressure can drop after two minutes  138 kPa (20 psi)     
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(1) N = Normal, M = Monitor, A = Action

Power Train System

Reference: Refer to Testing and Adjusting, UENR4633 for more detail on the following test.

Power Train Charge System Pressure - Test and Adjust

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Table 23
Status(1)  Description  Specification  Actual  Comments 
  Power Train Charge System Pressure at HIGH IDLE  2480 ± 35 kPa (360 ± 5 psi)     
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(1) N = Normal, M = Monitor, A = Action

Transmission Lubrication Oil Pressure - Test

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Table 24
Status(1)  Description  Specification  Actual  Comments 
  Transmission Lubrication Oil Pressure at LOW IDLE in NEUTRAL position  14 kPa (2 psi)     
  Transmission Lubrication Oil Pressure at HIGH IDLE in NEUTRAL position  275 kPa (40 psi)     
  Transmission Lubrication Oil Pressure at LOW IDLE in FIRST GEAR FORWARD position  6 kPa (1 psi)     
  Transmission Lubrication Oil Pressure at HIGH IDLE in FIRST GEAR FORWARD position  135 kPa (20 psi)     
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(1) N = Normal, M = Monitor, A = Action

Transmission Pressures - Test and Adjust

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Table 25
Status(1)  Description  Specification  Actual  Comments 
  Transmission Clutch Pressure at Test Port 1 in FIRST GEAR FORWARD position  1925 ± 220 kPa (280 ± 32 psi)     
  Transmission Clutch Pressure at Test Port 2 in SECOND GEAR FORWARD position  1925 ± 220 kPa (280 ± 32 psi)     
  Transmission Clutch Pressure at Test Port 3 in FIRST GEAR REVERSE position  1925 ± 220 kPa (280 ± 32 psi)     
  Transmission Clutch Pressure at Test Port 4 in SECOND GEAR FORWARD position  2480 ± 70 kPa (360 ± 10 psi)     
  Transmission Clutch Pressure at Test Port 5 in NEUTRAL position  2480 ± 70 kPa (360 ± 10 psi)     
  Transmission Clutch Pressure at Test Port 6 in FIRST GEAR FORWARD and FIRST GEAR REVERSE position  2480 ± 70 kPa (360 ± 10 psi)     
  Transmission Clutch Pressure at Test Port 7 in FIRST GEAR FORWARD, SECOND GEAR FORWARD, and FIRST GEAR REVERSE position  2480 ± 70 kPa (360 ± 10 psi)     
  Transmission Clutch Pressure at Test Port 8 in NEUTRAL position  2480 ± 70 kPa (360 ± 10 psi)     
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(1) N = Normal, M = Monitor, A = Action

Differential Lock Pressure - Check

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Table 26
Status(1)  Description  Specification  Actual  Comments 
  Differential Lock Pressure  2480 ± 70 kPa (360 ± 10 psi)     
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(1) N = Normal, M = Monitor, A = Action

S.O.S

Reference: Refer to Operation and Maintenance Manual, SEBU9228, "Maintenance Interval Schedule" for more detail on the following test.

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Table 27
Status(1)  Description  Obtain  Comments 
  Engine Coolant Sample (Level 1)     
  Engine Coolant Sample (Level 2)     
  Engine Oil Sample     
  Hydraulic Oil Sample     
  Transmission/Differential Oil Sample     
  Tandem Drive Oil Sample     
  Wheel Bearing Oil Sample (Front)     
Show/hide table
(1) N = Normal, M = Monitor, A = Action

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