318B Excavator TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar

Excavator:

318B (S/N: ADC1-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.

Note: Specification values are based on the following machine settings unless stated otherwise

• Engine Speed Dial "10"

• AEC OFF

• HP Mode

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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	18 VDC to 32 VDC		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, SENR6457, "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	10 to 12 mm (0.4 to 0.5 inch)		For water pump belt, fan drive belt, and alternator belt apply approximately 98 N (22 lb) force midway between the pulleys. For air conditioner belt apply approximately 100 N (22 lb) force midway between the pulleys, belt should deflect 7 to 10 mm (0.3 to 0.4 inch).
	Difference between the Upper Radiator Tank Temperature and Lower Radiator Tank Temperature	-
	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.

Basic Engine

Table 3

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Engine Performance - Test (Engine Speed)
	No Load Low Idle	900 ± 50 rpm		900 ± 100 rpm
	No Load High Idle AEC OFF > 3 seconds	2300 ± 50 rpm		2100 to 2350 rpm
	No Load High Idle AEC OFF 0 to 3 seconds	2400 ± 80 rpm		2200 to 2480 rpm
	No Load High Idle AEC ON	1300 ± 80 rpm		1300 ± 100 rpm
	Maximum Speed with Load (2) Pump stall condition	2100 rpm minimum	2050 rpm minimum	2000 rpm minimum

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Pressure is relieved from both pumps.

Fuel System

Table 4

Status (1)	Description	Specification	Actual	Comments
	Fuel Pressure at HIGH IDLE	290 + 110 - 90 kPa (42 + 16 - 13 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

Table 5

Status (1)	Description	Specification	Actual	Comments
	Inlet Manifold Pressure - Test	80 ± 12 kPa (12 ± 2 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)
	Cylinder # 7 Exhaust Temperature (2)
	Cylinder # 8 Exhaust Temperature (2)

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Compare the exhaust temperature variance at each exhaust port.

Performance Checks

ReferenceRefer to Testing & Adjusting, RENR1957, "Operational Checks" for more detail on the following test.

Operational Checks

Travel on Level Ground - Test

Table 6

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Travel Time for 25 m (82 ft) (time in seconds) (2)
	High Forward	16.8 or less	18.9 or less	20.8 or less
	High Reverse	16.8 or less	18.9 or less	20.8 or less
	Low Forward	26.6 or less	30.0 or less	33.4 or less
	Low Reverse	26.6 or less	30.0 or less	33.4 or less
	Travel Deviation - Check
	High Forward	800 mm (31.5 inch) or less	1200 mm (47.2 inch) or less	1500 mm (59.1 inch) or less
	High Reverse	800 mm (31.5 inch) or less	1200 mm (47.2 inch) or less	1500 mm (59.1 inch) or less
	Low Forward	800 mm (31.5 inch) or less	1200 mm (47.2 inch) or less	1500 mm (59.1 inch) or less
	Low Reverse	800 mm (31.5 inch) or less	1200 mm (47.2 inch) or less	1500 mm (59.1 inch) or less

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	First 5 m (16.4 ft) is preliminary. Measure travel time for remaining 20 m (65.6 ft).

Travel on Level Ground - Test (Optional Test)

Table 7

Time for Three Revolutions (time in seconds)
Status (1)	Description	Specification			Actual		Comments
		New	Rebuild	Service Limit	Right	Left
	High Forward	21.2 or less	23.5 or less	25.8 or less
	High Reverse	21.2 or less	23.5 or less	25.8 or less
	Low Forward	33.7 or less	37.5 or less	40.9 or less
	Low Reverse	33.7 or less	37.5 or less	40.9 or less

( 1 )

N = Normal, M = Monitor, A = Action

Machine Drift on a Slope - Check

Table 8

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Machine Drift (mm (inch)) (2)	0	0	0

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	After 3 minutes

Swing Speed and Overswing on Level Ground - Check

Table 9

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Swing Speed (one revolution) (seconds)
	Right Swing	5.3 or less	5.6 or less	6.2 or less
	Left Swing	5.3 or less	5.6 or less	6.2 or less
	Overswing (mm (inch))
	Right Swing	1000 mm (39.3 inch) or less	1150 mm (45.3 inch) or less	1300 mm (51.2 inch) or less
	Left Swing	1000 mm (39.3 inch) or less	1150 mm (45.3 inch) or less	1300 mm (51.2 inch) or less

( 1 )

N = Normal, M = Monitor, A = Action

Swing Speed and Swing Drift on a Slope - Check

Table 10

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Swing Speed on a Slope (90 degree swing) (seconds)
	Right Swing	4.9 or less	5.5 or less	6.1 or less
	Left Swing	4.9 or less	5.5 or less	6.1 or less
	Swing Drift mm (inch)
	Right Swing	0	0	0
	Left Swing	0	0	0

( 1 )

N = Normal, M = Monitor, A = Action

Cylinder Drift - Check (Empty Bucket)

Table 11

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Empty Bucket (mm (inch))
	Boom Cylinder	6.0 mm (0.24 inch) or less	12.0 mm (0.47 inch) or less	24.0 mm (0.94 inch) or less
	Stick Cylinder	10.0 mm (0.39 inch) or less	15.0 mm (0.59 inch) or less	25.0 mm (0.98 inch) or less
	Bucket Cylinder	10.0 mm (0.39 inch) or less	15.0 mm (0.59 inch) or less	25.0 mm (0.98 inch) or less

( 1 )

N = Normal, M = Monitor, A = Action

Cylinder Speed - Check

Table 12

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Boom Extension	3.2 ± 0.5	4.1 maximum	4.7 maximum
	Boom Retraction	2.4 ± 0.5	3.1 maximum	3.6 maximum
	Stick Extension	2.7 ± 0.5	3.4 maximum	4.1 maximum
	Stick Retraction	2.6 ± 0.5	3.4 maximum	4.0 maximum
	Bucket Extension	3.9 ± 0.5	5.0 maximum	5.8 maximum
	Bucket Retraction	2.2 ± 0.5	2.9 maximum	3.3 maximum

( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic System

ReferenceRefer to Testing & Adjusting, RENR1957, "Hydraulic Systems" for more detail on the following test.

Relief Valve (Pilot) - Test and Adjust

Table 13

Status (1)	Description	Specification	Actual	Comments
	Relief Valve (Pilot)	4100 ± 200 kPa (595 ± 29 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Main) - Test and Adjust

Table 14

Status (1)	Description	Specification	Actual	Comments
	Main Relief Valve	34300 ± 490 kPa (4950 ± 72 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Line) - Test and Adjust

Table 15

Relief Valve (Line) - Test and Adjust
Status (1)	Description	Specification	Actual	Comments
	Boom Head End	36300 ± 1470 kPa (5250 ± 215 psi)
	Boom Rod End
	Stick Head End
	Stick Rod End
	Bucket Head End
	Bucket Rod End

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Swing) - Test

Table 16

Status (1)	Description	Specification	Actual		Comments
	Swing Relief Valve (Left Swing)	27500 ± 980 kPa (4000 ± 140 psi)
	Swing Relief Valve (Right Swing)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Travel Motor) - Test and Adjust

Table 17

Status (1)	Description	Specification	Actual	Comments
	Power Shift Pressure (Fixed) - Set	2450 kPa (355 psi)
	Forward Left Travel	36800 ± 1470 kPa (5350 ± 215 psi)
	Reverse Left Travel
	Forward Right Travel
	Reverse Right Travel

( 1 )

N = Normal, M = Monitor, A = Action

S.O.S

ReferenceRefer to Operation and Maintenance Manual, SEBU7161, "Maintenance Interval Schedule" for more detail on performing S.O.S samples.

Table 18

Status (1)	Description	Obtain	Comments
	Engine Oil Sample
	Engine Coolant Sample (Level I)
	Engine Coolant Sample (Level II)
	Hydraulic Oil Sample
	Right Final Drive Oil Sample
	Left Final Drive Oil Sample
	Swing Drive Oil Sample

( 1 )

N = Normal, M = Monitor, A = Action