814K Wheel Dozer TA2 Technical Inspection {0372, 0374, 1000, 7000, 753T, 7565} Caterpillar

Wheel Dozer

814K (S/N: LW41-UP; WCM1-UP; T1Z1-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

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1. Click format to print.

2. Save the document as an HTML format.

3. Open the document with Microsoft Word.

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 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 ± 1V		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)
		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	-
	Conditioner Test of Engine Coolant	-
	Belt Tension	-		Refer to Operation and Maintenance Manual.
	Difference between the Upper and Lower Radiator Tank Temperatures	-
	Aftercooler Water Outlet Temperature

(1)	N = Normal, M = Monitor, A = Action
(2)	Test for the pressure that is listed on the cap.

Lubrication System

Table 3

Status(1)	Description	Specification	Actual	Comments
	The minimum oil pressure at the maximum engine speed and at normal operating temperature	315 kPa (45 psi)

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

Basic Engine

Table 4

Status(1)	Description	Specification	Actual	Comments
	Engine Speed at Low Idle	800 ± 20 rpm
	Engine Speed at High Idle	2270 ± 20 rpm
	Torque Converter Stall Test Engine RPM	-
	Cylinder Cutout Test	-		Cat® Electronic Technician (Cat ET Service Tool

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

Air Inlet and Exhaust System

Table 5

Status(1)	Description	Specification	Actual	Comments
	Torque Converter Stall Test Boost Pressure	-
	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.

Hydraulic Performance Checks

Reference: Refer to Testing & Adjusting, M0089995, "Hydraulic System" for more detail on the following test.

Table 6

Status(1)	Description	Specification		Actual	Comments
		814K Dozer Arrangement	814K Scoop Arrangement
	Ground to full raise	3.1 ± 0.4 seconds	6.5 ± 0.5 seconds
	Full raise to ground	3.0 ± 0.4 seconds	4.2 ± 0.4 seconds
	Float	1.5 ± 0.25 seconds	3.3 ± 0.4 seconds
	Tilt left to tilt right	2.9 ± 0.4 seconds	4.0 ± 0.4 seconds
	Tilt right to tilt left	2.9 ± 0.4 seconds	4.8 ± 0.4 seconds
	Curl to dump	-	7.7 ± 0.4 seconds
	Dump to curl	-	5.8 ± 0.4 seconds

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

Lift Cylinder and Tilt Cylinder Drift - Check

Table 7

Status(1)	Description	Specification	Actual	Comments
	Lift Cylinder	Max. Drift 50.0 mm (2.0 inch) at oil temperature of 52.5° ± 7.5°C (94.5° ± 13.5°F) for 2.7 minutes
	Tilt Cylinder	Max. Drift 60.0 mm (2.3 inch) at oil temperature of 52.5° ± 7.5°C (94.5° ± 13.5°F) for 1 minutes

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

Steering Performance Checks

Reference: Refer to Testing & Adjusting, M0089995, "Pump Performance (Steering) - Test" for more detail on the following test.

Steering Time - Check and Adjust

Table 8

Status(1)	Description	Specification	Actual	Comments
	Steering Time for a Full Turn from Stop to Stop (High Idle)	3.5 ± 0.5 seconds
	Steering Time for a Full Turn from Stop to Stop (Low Idle)	8.2 ± 0.5 seconds

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

Hydraulic System

Reference: Refer to Testing & Adjusting, M0089995, "Hydraulic System" for more detail on the following test.

Pilot Oil Accumulator - Test and Adjust

Table 9

Status(1)	Description	Specification	Actual	Comments
	Oil Temperature	52.5° ± 7.5°C (126.5° ± 13.5°F)
	Accumulator Pressure (Dead Engine Lower)	3300 ± 140 kPa (479 ± 20 psi)

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

Piston Pump (Implement) Cutoff Pressure - Test and Adjust

Table 10

Status(1)	Description	Specification	Actual	Comments
	High - Pressure Cutoff (Dozer arrangement )	20200 ± 350 kPa (2930 ± 51 psi)
	High - Pressure Cutoff (Scoop arrangement )	15500 ± 350 kPa (2248 ± 51 psi)

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

Piston Pump (Implement) Margin Pressure - Test and Adjust

Table 11

Status(1)	Description	Specification	Actual	Comments
	Margin - Pressure (Dozer arrangement )	2100 ± 100 kPa (305 ± 15 psi)
	Margin - Pressure (Scoop arrangement )	2100 ± 100 kPa (305 ± 15 psi)

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

Torque Converter Stall and Implement Pump Double Stall - Test and Adjust

Table 12

Status(1)	Description	Specification	Actual	Comments
		814K
	Raise Double stall speed check 2F with PTS	-
	Raise Double stall speed check 2F without PTS	2130 ± 50 RPM

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

Power Train System

Reference: Refer to Testing and Adjusting, M0089995, "Machine Systems" for more information.

Transmission Clutch Pressure - Test and Adjust

Table 13

Status(1)	Description	Specification	Actual	Comments
	Clutch "1" Pressure	2792 ± 70 kPa (405 ± 10 psi)
	Clutch "2" Pressure	2792 ± 70 kPa (405 ± 10 psi)
	Clutch "3" Pressure	2792 ± 70 kPa (405 ± 10 psi)
	Clutch "4" Pressure	2792 ± 70 kPa (405 ± 10 psi)
	Clutch "5" Pressure	2792 ± 70 kPa (405 ± 10 psi)
	Clutch "6" Pressure	2792 ± 70 kPa (405 ± 10 psi)

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

Test for the Lubrication Oil Pressure - Test and Adjust

Table 14

Status(1)	Description	Specification	Actual	Comments
	Transmission Lubrication Pressure (High Idle)	221 ± 25 kPa (32 ± 3.6 psi)

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

Torque Converter Outlet Pressure (Torque Converter Stall) - Test and Adjust

Table 15

Status(1)	Description	Specification	Actual	Comments
	Torque Converter Inlet Pressure (High Idle)	517 ± 48 kPa (75 ± 7 psi)
	Torque Converter Outlet Pressure (High Idle)	414 ± 48 kPa (60 ± 7 psi)

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

Transmission Oil Pump Pressure (High Idle) - Test and Adjust

Table 16

Status(1)	Description	Specification	Actual	Comments
	Transmission Oil Pump Pressure (High Idle)	2825 ± 70 kPa (410 ± 10 psi)

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

Steering System

Reference: Refer to Testing and Adjusting, M0089995, "Machine Systems" for more information.

Piston Pump (Steering) High Pressure - Test and Adjust

Table 17

Status(1)	Description	Specification	Actual	Comments
	Steering Pump Discharge Pressure at High Idle	18000 ± 350 kPa (2611 ± 51 psi)

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

Piston Pump (Steering) Margin Pressure - Test and Adjust

Table 18

Status(1)	Description	Specification	Actual	Comments
	Steering Pump Margin Pressure at High Idle	1800 ± 100 kPa (261 ± 15 psi)

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

Relief Valve (Steering Cylinder Crossover) - Test and Adjust

Table 19

Status(1)	Description	Specification	Actual	Comments
	Steering Cylinder Line Relief Valve Pressure	29100 ± 300 kPa (4221 ± 43.5 psi)

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

Relief Valve (Steering Backup) - Test and Adjust

Table 20

Status(1)	Description	Specification	Actual	Comments
	High-Pressure Cutoff (High Idle)	27600 ± 700 kPa (4003 ± 102 psi)

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

Steering Neutralizer Valve - Check and Adjust

Table 21

Status(1)	Description	Specification	Actual	Comments
	Putty Thickness	12.7 ± 3 mm (0.5 ± 0.12 inch)

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

Braking System

Reference: Refer to Testing & Adjusting, M0089995, "Braking System" for more detail on the following test.

Service Brake System Pressure - Test and Adjust

Table 22

Status(1)	Description	Specification	Actual	Comments
	Service Brake Pressure (Fully Depressed)(2)	8625 ± 350 kPa (1251 ± 51 psi)
	Service Brake Pressure (Fully Released)(2)	35 kPa (5 psi)

(1)	N = Normal, M = Monitor, A = Action
(2)	For both Front and Rear Brakes

Brake Accumulator - Test and Charge

Table 23

Charging Pressure and temperature Relationship for a Typical 6205 kPa (900 psi) Accumulator
Temperature	Pressure(1)
−7° C (20° F)	4790 kPa (695 psi)
−1° C (30° F)	4900 kPa (711 psi)
4° C (40° F)	4990 kPa (724 psi)
10° C (50° F)	5100 kPa (740 psi)
16° C (60° F)	6220 kPa (902 psi)
21° C (70° F)	6205 kPa (900 psi)
27° C (80° F)	6390 kPa (927 psi)
32° C (90° F)	6570 kPa (953 psi)
38° C (100° F)	6760 kPa (980 psi)
43° C (110° F)	6940 kPa (1007 psi)
49° C (120° F)	7120 kPa (1033 psi)

(1)	Nominal allowable tolerance equals ± 70 kPa (10 psi)

Service Brakes - Test and Adjust

Table 24

Status(1)	Description	Specification	Actual	Comments
	Allow the oil pressure in the accumulator to reach	18616 ± 345 kPa (2700 ± 50 psi)

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

S·O·S Samples

Reference: Refer to Operation and Maintenance Manual, SEBU9331, "814K Wheel Dozer", "Maintenance Section" for more detail on performing S.O.S samples.

Engine Oil Sample

Table 25

Status(1)	Description	Obtain	Comments
	Engine Oil Sample

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

Engine Coolant Sample

Table 26

Status(1)	Description	Obtain	Comments
	Engine Coolant Sample

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

Hydraulic Oil Sample

Table 27

Status(1)	Description	Obtain	Comments
	Hydraulic Oil Sample

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

Differential & Final Drive Oil Samples (Inboard Final Drives)

Table 28

Status(1)	Description	Obtain	Comments
	Front Differential & Final Drive Oil Sample
	Rear Differential & Final Drive Oil Sample

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

Differential & Final Drive Oil Samples (Outboard Final Drives)

Table 29

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

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

Transmission/Torque Converter Oil Sample

Table 30

Status(1)	Description	Obtain	Comments
	Transmission/Torque Converter Oil Sample

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