14H Motor Grader TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar


14H Motor Grader TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565}

Usage:

14H ASE
Motor Grader:
14H (S/N: ASE1-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.

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Electrical System

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     12.4 VDC or more         Refer to Special Instruction, SEHS7633, "Battery Test Procedure".    
    Charging System Test     28 ± 1 V         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, SENR9528, "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)
( 1 ) N = Normal, M = Monitor, A = Action

Engine

Cooling System

Table 2
Status (1)     Description     Specification     Actual     Comments    
    Radiator Pressure Relief (Radiator Cap) (2)     -            
    Freezing Point of Engine Coolant     -         Use 245-5829 Coolant/Battery Tester Gp .    
    Conditioner Test of Engine Coolant     -         Use 8T-5296 Coolant Conditioner Test Kit .    
    Belt Tension     Auto-Tension            
    Difference between the Upper Radiator Tank Temperature and Lower Radiator Tank Temperature    
3° + 5° - 5° C (37° + 41° - 41° F)    
       
    Jacket Water Inlet Temperature from Cooling System    
89° ± 3°C (192° ± 37°F)    
       
( 1 ) N = Normal, M = Monitor, A = Action
( 2 ) Test for the pressure that is listed on the cap.

Fuel System

Table 3
Status (1)     Description     Specification     Actual     Comments    
    Fuel Pressure at HIGH IDLE    
687 + 233 - 227 kPa (100 + 34 - 33 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Lubrication System

Table 4
Status (1)     Description     Specification     Actual     Comments    
    Engine Oil Pressure at LOW IDLE    
142 + 458 - 68 kPa (21 + 66 - 10 psi)    
       
    Engine Oil Pressure at HIGH IDLE    
322 + 278 - 72 kPa (47 + 40 - 10 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Basic Engine

Table 5
Status (1)     Description     Specification     Actual     Comments    
    Engine Speed at LOW IDLE     800 ± 10 RPM            
    Engine Speed at HIGH IDLE     2100 ± 10 RPM            
    Cylinder Cutout Test     -            
    Engine Crankcase Blowby Pressure     -            
( 1 ) N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

Table 6
Status (1)     Description     Specification     Actual     Comments    
    Boost Pressure Test    
76.7 ± 11.6 kPa (11.1 ± 1.7 psi)    
       
    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)     -            
( 1 ) N = Normal, M = Monitor, A = Action
( 2 ) Compare the exhaust temperature variance at each exhaust port.

Performance Checks

Brake Performance Checks

ReferenceRefer to Operation and Maintenance Manual, SEBU7477, "Braking System - Test" for more detail on the following test.

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

Secondary Steering Performance Checks

ReferenceRefer to Testing and Adjusting, RENR4118, "Secondary Steering System" for more detail on the following tests.

Table 8
Status (1)     Description     Specification     Actual     Comments    
    Relief Valve (Secondary Steering) - Test    
17225 kPa (2498 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Hydraulic Performance Checks

ReferenceRefer to Testing and Adjusting, RENR4183, "Hydraulic and Steering System " for more detail on the following tests.

Cylinder Cycle Time - Check

Table 9
Status (1)     Description     Specification     Actual     Comments    
    Blade Lift - Rod In (2)     2.8 ± 0.4            
    Blade Lift - Rod Out (2)     2.8 ± 0.4            
    Centershift - Rod In (3)     6.0 ± 0.9            
    Centershift - Rod Out (3)     6.0 ± 0.9            
    Wheel Lean - Rod In (3)     2.0 ± 0.3            
    Wheel Lean - Rod Out (3)     2.0 ± 0.3            
    Blade Tip - Rod In (3)     4.8 ± 0.7            
    Blade Tip - Rod Out (3)     4.8 ± 0.7            
    Side Shift - Rod In (3)     14.3 ± 1.9            
    Side Shift - Rod Out (3)     14.3 ± 1.9            
    Ripper (If Equipped) - Rod In (2)     3.6 ± 0.4            
    Ripper (If Equipped) - Rod Out (2)     4.7 ± 0.4            
    Articulation - Rod In (3) (4)     3.9 ± 0.9            
    Articulation - Rod Out (3) (4)     3.9 ± 0.9            
    Blade Circle - 1/4 rotation     12.0 ± 1.4            
    Steering Wheel - Number of Turns     6            
( 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

Table 10
Status (1)     Description     Specification     Actual     Comments    
Oil Temperature Range

38° C (100° F)

49° C (120° F)

66° C (151° F)    
    Maximum allowable movement for Blade Lift (Left or Right Cylinder) in 5 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
    Maximum allowable movement for Blade Lift (Left or Right Cylinder) in 3.2 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
    Maximum allowable movement for Blade Lift (Left or Right Cylinder) in 1.7 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
    Maximum allowable movement for Wheel Lean (Left or Right Cylinder) in 5 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
    Maximum allowable movement for Wheel Lean (Left or Right Cylinder) in 3.2 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
    Maximum allowable movement for Wheel Lean (Left or Right Cylinder) in 1.7 minutes    
1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    

1.5 mm (0.06 inch)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Hydraulic and Steering System

ReferenceRefer to Testing and Adjusting, RENR4183, "Hydraulic and Steering System" for more detail on the following test.

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

Low Standby Pressure Adjustment

Table 11
Status (1)     Description     Specification     Actual     Comments    
    Low Pressure Standby at HIGH IDLE    
3310 ± 690 kPa (480 ± 100 psi)    
       
    True Low Pressure Standby at HIGH IDLE    
2100 ± 100 kPa (305 ± 15 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Hydraulic System Pressure

Table 12
Status (1)     Description     Specification     Actual     Comments    
    Implement Cylinder Stall Pressure at HIGH IDLE    
24132 ± 1034 kPa (3500 ± 150 psi)    
       
    Implement Relief Valve Pressure at HIGH IDLE    
27600 ± 400 kPa (3900 ± 60 psi)    
       

25500 ± 350 kPa (3700 ± 70 psi)
   
( 1 ) N = Normal, M = Monitor, A = Action

Relief Valves (Implement) - Test and Adjust

Table 13
Status (1)     Description     Specification     Actual     Comments    
    Relief Valve Pressure    
27600 ± 400 kPa (3900 ± 60 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Disc Pack Preload for Circle Drive - Adjust

Table 14
Status (1)     Description     Specification     Actual     Comments    
    Spring Deflection    
2.30 ± 0.25 mm (0.091 ± 0.010 inch)    
       
    Bearing Preload    
0.00 to 0.13 mm (0.000 to 0.005 inch)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Steering Wheel Slip - Check

Table 15
Status (1)     Description     Specification     Actual     Comments    
    Steering Wheel Revolutions from Stop to Stop     6.5 turns            
    Maximum Steering Pressure    
19300 ± 689 kPa (2800 ± 100 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Piston Pump Cutoff Pressure (Hydraulic Fan) - Test and Adjust

Table 16
Status (1)     Description     Specification     Actual     Comments    
    Hydraulic Fan Speed at HIGH IDLE     1210 ± 25 RPM            
    Reference Pressure    
8000 ± 500 kPa (1160 ± 73 psi)    
       
    Hydraulic Fan Speed at HIGH IDLE (HIGH AMBIENT)     1350 ± 25 RPM            
    Reference Pressure (HIGH AMBIENT)    
10000 ± 500 kPa (1450 ± 73 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

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

Table 17
Status (1)     Description     Specification     Actual     Comments    
    Hydraulic Fan Speed at LOW IDLE     500 ± 25 RPM            
    Reference Pressure    
1300 kPa (189 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Air and Brake System

ReferenceRefer to Testing and Adjusting, RENR4189, "Air System and Brakes" for more detail on the following test.

Air System - Test

Table 18
Status (1)     Description     Specification     Actual     Comments    
    Pressure Loss    
34 kPa (5 psi) or less    
    Record the cut out air pressure to the nearest
3.0 kPa (0.5 psi). After 150 seconds, take another reading. Difference should be within specification.    
( 1 ) N = Normal, M = Monitor, A = Action

Air Pressure Gauge - Test

Table 19
Status (1)     Description     Specification     Actual     Comments    
    Pressure difference between Air Pressure Gauge and Test Pressure Gauge for Right or Left Tank gauge    
35 kPa (5 psi) Maximum    
       
( 1 ) N = Normal, M = Monitor, A = Action

Air Compressor Governor - Test and Adjust

Table 20
Status (1)     Description     Specification     Actual     Comments    
    Cut IN, Pressure    
793 kPa (115 psi)    
       
    Cut OUT, Pressure    
1000 ± 34 kPa (145 ± 5 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Pressure Switch (Low Brake Air) - Test

Table 21
Status (1)     Description     Specification     Actual     Comments    
    Cut IN, Pressure    
530 ± 40 kPa (77 ± 6 psi)    
       
    Cut OUT, Pressure     Above
640 kPa (93 psi)    
       
    Low Brake Air Pressure Alarm Test    
530 ± 40 kPa (77 ± 6 psi)    
       
    Low Brake Air Pressure - Indicator    
530 ± 40 kPa (77 ± 6 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Pressure Switch (Brake Air) (Stop Lamp) - Test

Table 22
Status (1)     Description     Specification     Actual     Comments    
    Stop Lamp Brake Air Pressure Switch Test    
60 kPa (9 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Power Train System

ReferenceRefer to Testing and Adjusting, RENR4174, "Power Train" for more detail on the following test.

Transmission Charging Pump Pressure - Test and Adjust

Table 23
Status (1)     Description     Specification     Actual     Comments    
    Transmission Charging Pump Pressure at LOW IDLE    
2600 kPa (375 psi) minimum    
       
    Transmission Charging Pump Pressure at HIGH IDLE    
2861 ± 35 kPa (415 ± 5 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Transmission Lubrication Oil Pressure - Test

Table 24
Status (1)     Description     Specification     Actual     Comments    
    Transmission Lubrication Oil Pressure at LOW IDLE in NEUTRAL position    
159 ± 69 kPa (23 ± 10 psi)    
       
    Transmission Lubrication Oil Pressure at HIGH IDLE in NEUTRAL position    
552 ± 103 kPa (80 ± 15 psi)    
       
    Transmission Lubrication Oil Pressure at LOW IDLE in FIRST GEAR FORWARD position    
41 ± 21 kPa (6 ± 3 psi)    
       
    Transmission Lubrication Oil Pressure at HIGH IDLE in FIRST GEAR FORWARD position    
386 ± 55 kPa (56 ± 8 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Direction Clutch Pressure - Test

Table 25
Status (1)     Description     Specification     Actual     Comments    
    Direction Clutch Pressure at the Transmission Control Valve at LOW IDLE    
2200 kPa (319 psi) minimum    
       
    Direction Clutch Pressure at the Transmission Control Valve at HIGH IDLE    
2400 ± 70 kPa (348 ± 10 psi)    
       
    Direction Clutch Pressure for the Transmission at the Cover    
414 ± 35 kPa (60 ± 5 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Speed Clutch Pressure - Test and Adjust

Table 26
Status (1)     Description     Specification     Actual     Comments    
    Speed Clutch Pressure at LOW IDLE in NEUTRAL position    
621 ± 41 kPa (90 ± 6 psi)    
       
    Speed Clutch Pressure at HIGH IDLE in NEUTRAL position    
621 ± 34 kPa (90 ± 5 psi)    
       
    Speed Clutch Pressure at LOW IDLE in FIRST GEAR FORWARD position    
2515 kPa (365 psi) minimum    
       
    Speed Clutch Pressure at HIGH IDLE in FIRST GEAR FORWARD position    
2859 ± 103 kPa (415 ± 15 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Pilot Pressure - Test

Table 27
Status (1)     Description     Specification     Actual     Comments    
    Pilot Pressure in NEUTRAL position    
682 ± 69 kPa (99 ± 10 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Transmission Oil Cooler Pressure - Test

Table 28
Status (1)     Description     Specification     Actual     Comments    
    Transmission Oil Cooler Pressure at LOW IDLE in NEUTRAL position    
690 kPa (100 psi)    
       
    Transmission Oil Cooler Pressure at HIGH IDLE in NEUTRAL position    
1380 kPa (200 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

Differential Lock Pressure - Check

Table 29
Status (1)     Description     Specification     Actual     Comments    
    Differential Lock Pressure    
2620 kPa (380 psi)    
       
( 1 ) N = Normal, M = Monitor, A = Action

S.O.S

ReferenceRefer to Operation and Maintenance Manual, SEBU7477, "Maintenance Interval Schedule" for more detail on the following test.

Table 30
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)            
( 1 ) N = Normal, M = Monitor, A = Action

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