314C Excavator TA2 Technical Inspection{0372, 1000, 7000, 753T, 7565} Caterpillar

Excavator:

314C (S/N: SNY1-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, SENR5546, "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	71° ± 2°C (160° ± 36°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)
	High idle (2)	2150 ± 50 rpm		1950 to 2200 rpm
	No load high idle (3)	2050 ± 50 rpm		1850 to 2100 rpm
	Engine speed with the automatic engine control switch (AEC) in the ON position	1300 rpm
	No load low idle	1050 ± 80 rpm		1050 ± 100 rpm
	Maximum Speed with Load (4) Pump stall condition	1880 to 2050 rpm	1830 rpm minimum	1780 rpm minimum
	Maximum Speed with Load (4) (5)	1770 to 1940 rpm	1750 rpm minimum	1650 rpm minimum
	No load speed (6)	1200 ± 80 rpm		1200 ± 100 rpm

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	One touch low idle switch OFF
( 3 )	After 3 seconds at HIGH IDLE with no load and the one touch low idle switch OFF
( 4 )	Pressure is relieved from both pumps.
( 5 )	Maximum speed for machines with Tier II sound emissions
( 6 )	One Touch Low Idle switch ON

Fuel System

Table 4

Status (1)	Description	Specification	Actual	Comments
	Fuel Pressure at HIGH IDLE	76 to 245 kPa (11 to 36 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Lubrication System

Table 5

Status (1)	Description	Specification	Actual	Comments
	Engine Oil Pressure at LOW IDLE	83 to 98 kPa (12 to 14 psi)
	Engine Oil Pressure at HIGH IDLE	196 to 392 kPa (28 to 57 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Air Inlet and Exhaust System

Table 6

Status (1)	Description	Specification	Actual	Comments
	Inlet Manifold Pressure - Test
	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, RENR6607, "Operational Checks" for more detail on the following test.

Operational Checks

Travel on Level Ground - Test

Table 7

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Travel Time for 25 m (82 ft) (time in seconds) (2)
	High Forward	13.2 or less	13.8 or less	15.6 or less
	High Reverse	13.2 or less	13.8 or less	15.6 or less
	Low Forward	19.5 or less	20.7 or less	23.4 or less
	Low Reverse	19.5 or less	20.7 or less	23.4 or less
	Travel Time for 25 m (82 ft) (time in seconds) (2) Tier II Sound Emissions
	High Forward	13.9 or less	14.8 or less	16.7 or less
	High Reverse	13.9 or less	14.8 or less	16.7 or less
	Low Forward	20.5 or less	21.8 or less	24.7 or less
	Low Reverse	20.5 or less	21.8 or less	24.7 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 8

Status (1)	Description	Specification			Actual		Comments
		New	Rebuild	Service Limit	Right	Left
	Time for Three Revolutions (time in seconds)
	High Forward	14.5 or less	15.5 or less	17.6 or less
	High Reverse	14.5 or less	15.5 or less	17.6 or less
	Low Forward	21.5 or less	23.0 or less	26.0 or less
	Low Reverse	21.5 or less	23.0 or less	26.0 or less
	Time for Three Revolutions (time in seconds) Tier II Sound Emissions
	High Forward	15.3 or less	16.2 or less	18.4 or less
	High Reverse	15.3 or less	16.2 or less	18.4 or less
	Low Forward	22.5 or less	24.0 or less	27.1 or less
	Low Reverse	22.5 or less	24.0 or less	27.1 or less

( 1 )

N = Normal, M = Monitor, A = Action

Machine Drift on a Slope - Check

Table 9

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 10

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Swing Speed (180 degree swing) (seconds)
	Right Swing	3.9 or less	4.4 or less	4.9 or less
	Left Swing	3.9 or less	4.4 or less	4.9 or less
	Swing Speed (180 degree swing) (seconds) Tier II Sound Emissions
	Right Swing	4.3 or less	4.9 or less	5.6 or less
	Left Swing	4.3 or less	4.9 or less	5.6 or less
	Overswing (mm (inch))
	Right Swing	1050 mm (41.5 inch) or less	1210 mm (47.6 inch) or less	1365 mm (53.7 inch) or less
	Left Swing	1050 mm (41.5 inch) or less	1210 mm (47.6 inch) or less	1365 mm (53.7 inch) or less

( 1 )

N = Normal, M = Monitor, A = Action

Swing Speed and Swing Drift on a Slope - Check

Table 11

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Swing Speed on a Slope (90 degree swing) (seconds)
	Right Swing	4.6 or less	4.9 or less	5.6 or less
	Left Swing	4.6 or less	4.9 or less	5.6 or less
	Swing Speed on a Slope (90 degree swing) (seconds) Tier II Sound Emissions
	Right Swing	4.9 or less	5.6 or less	6.5 or less
	Left Swing	4.9 or less	5.6 or less	6.5 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 12

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 Drift - Check (Loaded Bucket)

Table 13

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Loaded Bucket (mm (inch)) (2)
	Boom Cylinder	6.0 mm (0.24 inch) or less
	Stick Cylinder	12.0 mm (0.47 inch) or less
	Bucket Cylinder	18.0 mm (0.71 inch) or less

( 1 )	N = Normal, M = Monitor, A = Action
( 2 )	Weight of bucket load is 675 kg (1488 lb)

Cylinder Drift - Check - Blade (If Equipped)

Table 14

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Blade Cylinder	9.0 mm (0.35 inch) or less	14.0 mm (0.55 inch) or less	18 mm (0.71 inch) or less

( 1 )

N = Normal, M = Monitor, A = Action

Cylinder Speed - Check - Blade (If Equipped)

Table 15

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Blade Extension	1.3 ± 0.5	1.6 maximum	1.9 maximum
	Boom Retraction	1.1 ± 0.5	1.4 maximum	1.6 maximum

( 1 )

N = Normal, M = Monitor, A = Action

Cylinder Speed - Check - Boom, Stick, and Bucket

Table 16

Status (1)	Description	Specification			Actual	Comments
		New	Rebuild	Service Limit
	Cylinder Operating Speed (seconds)
	Boom Extension	3.2 ± 0.5	4.1 maximum	4.8 maximum
	Boom Retraction	2.6 ± 0.5	3.3 maximum	3.9 maximum
	Stick Extension	2.4 ± 0.5	3.1 maximum	3.6 maximum
	Stick Retraction	2.3 ± 0.5	3.0 maximum	3.5 maximum
	Bucket Extension	3.5 ± 0.5	4.6 maximum	5.3 maximum
	Bucket Retraction	2.1 ± 0.5	2.7 maximum	3.2 maximum
	Cylinder Operating Speed (seconds) Tier II Sound Emissions
	Boom Extension	3.5 ± 0.5	4.6 maximum	5.3 maximum
	Boom Retraction	2.8 ± 0.5	3.6 maximum	4.2 maximum
	Stick Extension	2.6 ± 0.5	3.4 maximum	3.9 maximum
	Stick Retraction	2.5 ± 0.5	3.3 maximum	3.8 maximum
	Bucket Extension	3.8 ± 0.5	4.9 maximum	5.7 maximum
	Bucket Retraction	2.3 ± 0.5	3.0 maximum	3.5 maximum

( 1 )

N = Normal, M = Monitor, A = Action

Hydraulic System

ReferenceRefer to Testing & Adjusting, RENR6607, "Hydraulic Systems" for more detail on the following test.

Relief Valve (Pilot) - Test and Adjust

Table 17

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 18

Status (1)	Description	Specification		Actual	Comments
		New Rebuilt	Service Limit
	Main Relief Valve - Implement	29900 ± 490 kPa (4350 ± 72 psi)	27940 to 30390 kPa (4050 to 4400 psi)
	Main Relief Valve - Travel	34300 ± 490 kPa (4950 ± 72 psi)	32340 to 34790 kPa (4700 to 5050 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Line) - Test and Adjust - Stick Lowering Control Valve

Table 19

Status (1)	Description	Specification	Actual	Comments
	Line Relief Valve - Stick Lowering Control Valve	31900 ± 1500 kPa (4625 ± 215 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Line) - Test and Adjust - Boom Lowering Control Valve

Table 20

Status (1)	Description	Specification	Actual	Comments
	Line Relief Valve - Boom Lowering Control Valve	31900 ± 1500 kPa (4625 ± 215 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Line) - Test and Adjust

Table 21

Status (1)	Description	Specification		Actual	Comments
		New Rebuilt	Service Limit
	Boom Head End	31900 ± 1470 kPa (4650 ± 215 psi)	28950 to 33370 kPa (4200 to 4850 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 (Blade) - Test and Adjust

Table 22

Status (1)	Description	Specification		Actual	Comments
		New Rebuilt	Service Limit
	Main Relief Valve (Blade)	20600 ± 490 kPa (3000 ± 72 psi)	18640 to 21050 kPa (2700 to 3050 psi)
	Blade Cylinder Line (Head end)	24500 ± 980 kPa (3550 ± 140 psi)	22540 to 25480 kPa (3300 to 3700 psi)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Swing) - Test and Adjust

Table 23

Status (1)	Description	Specification		Actual	Comments
		New Rebuilt	Service Limit
	Swing Relief Pressure (Left)	24500 ± 980 kPa (3550 ± 140 psi)	22540 to 25480 kPa (3300 to 3700 psi)
	Swing Relief Pressure (Right)

( 1 )

N = Normal, M = Monitor, A = Action

Relief Valve (Crossover) - Test and Adjust

Table 24

Status (1)	Description	Specification		Actual	Comments
		New Rebuilt	Service Limit
	Forward Left Travel	36800 ± 1470 kPa (5350 ± 215 psi)	33850 to 38270 kPa (4900 to 5550 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, SEBU7448, "Maintenance Interval Schedule" for more detail on performing S.O.S samples.

Table 25

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