- Excavator
- 320 (S/N: YCP1-UP; HEX1-UP)
- 320 GC (S/N: XBJ1-UP; KTN1-UP)
- 323 (S/N: RAZ1-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 "7"
- AEC OFF
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Electrical System
Show/hide table
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). |
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Battery Test(2) |
12.4 VDC or more |
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Charging System Test(3) |
18 VDC to 32 VDC |
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Electric Starting System Test(4) |
12 to 16 V at −23° C (−10° F) to −7° C (19° F) |
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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) |
Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Refer to Special Instruction, SEHS7633, "Battery Test Procedure". |
(3) |
Refer to Special Instruction, REHS0354, "Charging System Troubleshooting". |
(4) |
Refer to Testing and Adjusting, RENR2415, "Electric Starting System - Test". |
Engine
Cooling System
Show/hide table
Table 2
Status(1) |
Description |
Specification |
Actual |
Comments |
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Radiator Pressure Relief (Radiator Cap)(2) |
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Refer to System Operation Testing and Adjusting. |
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Freezing Point of Engine Coolant |
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Refer to Operation and Maintenance Manual. |
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Conditioner Test of Engine Coolant |
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Refer to Operation and Maintenance Manual. |
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Difference between the Upper and Lower Radiator Tank Temperatures |
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Show/hide table
(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 |
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Fuel Pressure of the Fuel System at Idle Speed |
150 kPa (22 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Lubrication System
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Table 4
Status(1) |
Sales Model |
Description |
Specification |
Actual |
Comments |
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320 GC, 320 |
Minimum Oil Pressure at Maximum Engine Speed |
280 kPa (40 psi) |
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323 |
Minimum Oil Pressure at Maximum Engine Speed |
315 kPa (45 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Basic Engine
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Table 5
Engine Performance - Test (Engine Speed) |
|
Status(1) |
Sales Model |
Description |
Service Limit |
Actual |
Comments |
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320 GC |
Engine Dial 7 At No Load (AEC Off) |
STD Mode |
1700 ± 50 RPM |
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Engine Dial "7" At No Load (AEC On) |
950 ± 50 RPM |
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One Touch Low Idle |
950 ± 50 RPM |
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Engine Dial "1" At No Load |
900 ± 50 RPM |
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Engine Dial "7" At Full Load(2) |
1700 ± 50 RPM |
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Engine Dial "7" At Low Load Traveling(3) |
1700 ± 50 RPM |
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Engine Dial "7" At Full Load Traveling(4) |
2000 ± 50 RPM |
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320 |
Engine Dial 7 At No Load (AEC Off) |
STD Mode |
1650 ± 50 RPM |
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ECO Mode |
1550 ± 50 RPM |
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Engine Dial "7" At No Load (AEC On) |
1000 ± 50 RPM |
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One Touch Low Idle |
1000 ± 50 RPM |
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Engine Dial "1" At No Load |
900 ± 50 RPM |
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Engine Dial "7" At Full Load(2) |
1650 ± 50 RPM |
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Engine Dial "7" At Low Load Traveling(3) |
1650 ± 50 RPM |
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Engine Dial "7" At Full Load Traveling(4) |
1800 ± 50 RPM |
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323 |
Engine Dial 7 At No Load (AEC Off) |
Power Mode |
1650 ± 50 RPM |
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ECO Mode |
1550 ± 50 RPM |
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Engine Dial "7" At No Load (AEC On) |
1000 ± 50 RPM |
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One Touch Low Idle |
1000 ± 50 RPM |
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Engine Dial "1" At No Load |
900 ± 50 RPM |
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Engine Dial "7" At Full Load(2) |
1650 ± 50 RPM |
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Engine Dial "7" At Low Load Traveling(3) |
1650 ± 50 RPM |
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Engine Dial "7" At Full Load Traveling(4) |
1800 ± 50 RPM |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Two pump main relief (Boom UP). |
(3) |
One track blocked |
(4) |
Both tracks blocked |
Air Inlet and Exhaust System
Show/hide table
Table 6
Status(1) |
Description |
Specification |
Actual |
Comments |
Inlet Manifold Pressure - Test |
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Cylinder # 1 Exhaust Temperature(2) |
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Cylinder # 2 Exhaust Temperature(2) |
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Cylinder # 3 Exhaust Temperature(2) |
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Cylinder # 4 Exhaust Temperature(2) |
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Cylinder # 5 Exhaust Temperature(2) |
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Cylinder # 6 Exhaust Temperature(2) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Compare the exhaust temperature variance at each exhaust port. |
Performance Checks
Reference: Refer to Testing & Adjusting, M0081159, "Performance Tests" for more detail on the following test.
Operational Checks
Travel on Level Ground - Test
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Table 7
Travel on Level Ground - Test |
Travel Time (time in seconds) |
Status(1) |
Machine |
Travel Speed |
New |
Service Limit |
Actual |
Comments |
|
320 GC |
HIGH |
Forward |
12.3 ± 0.5 |
16.0 ± 1.0 |
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Reverse |
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LOW |
Forward |
19.9 ± 0.5 |
25.9 ± 1.0 |
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Reverse |
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320 / 323 |
HIGH |
Forward |
12.6 ± 0.5 |
16.4 ± 1.0 |
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Reverse |
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LOW |
Forward |
20.5 ± 0.5 |
26.7 ± 1.0 |
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Reverse |
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Travel Deviation(2) mm (inch) |
Status(1) |
Travel Speed |
New |
Service Limit |
Actual |
Comments |
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HIGH |
Forward |
650 mm (25.6 inch) or less |
650 mm (25.6 inch) or less |
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Reverse |
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LOW |
Forward |
650 mm (25.6 inch) or less |
650 mm (25.6 inch) or less |
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Reverse |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Travel deviation (distance) from the reference line |
Travel on Level Ground - Test (Optional Test)
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Table 8
Travel on Level Ground - Test (Optional Test) |
Time For Three Revolutions (time in seconds) |
Status(1) |
Machine |
Travel Speed |
New |
Service Limit |
Actual |
Comments |
Right |
Left |
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320 GC
Standard Undercarriage |
HIGH |
Forward |
15.8 ± 1.0 |
20.5 ± 1.0 |
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Reverse |
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LOW |
Forward |
25.5 ± 1.0 |
33.2 ± 1.0 |
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Reverse |
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320
Standard Undercarriage |
HIGH |
Forward |
16.2 ± 1.0 |
21.1 ± 1.0 |
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Reverse |
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LOW |
Forward |
26.3 ± 1.0 |
34.2 ± 1.0 |
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Reverse |
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320 / 323
Long Undercarriage |
HIGH |
Forward |
17.6 ± 1.0 |
22.9 ± 1.0 |
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Reverse |
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LOW |
Forward |
28.6 ± 1.0 |
37.2 ± 1.0 |
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Reverse |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Automatic Travel Speed Control - Test
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Table 9
Automatic Travel Speed Control - Test |
Status(1) |
Description |
Specification |
Actual |
Comments |
Item |
Pressure tap |
Speed |
|
Right Travel |
Pump 1 |
High to Low |
32000 ± 500 kPa (4641 ± 73 psi) |
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Low to High |
18000 ± 500 kPa (2611 ± 73 psi) |
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Left Travel |
Pump 2 |
High to Low |
32000 ± 500 kPa (4641 ± 73 psi) |
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Low to High |
18000 ± 500 kPa (2611 ± 73 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Machine Drift on a Slope - Check
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Table 10
Machine Drift on a Slope - Check |
Status(1) |
Description |
Specification |
Actual |
Comments |
New |
Service Limit |
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Machine Drift |
0 mm |
0 mm |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Swing Speed and Overswing on Level Ground - Check
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Table 11
Swing Speed and Overswing on Level Ground - Check (time in seconds) |
Swing Time (time in seconds) |
Status(1) |
Description |
New |
Service Limit |
Actual |
Comments |
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Right Swing |
4.5 or less |
5.5 or less |
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Left Swing |
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Overswing mm (inch) |
Status(1) |
Description |
New |
Service Limit |
Actual |
Comments |
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Right Swing |
1509.6 mm (59.43 inch) or less |
1962.1 mm (77.25 inch) or less |
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Left Swing |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Swing Speed and Swing Drift on a Slope -Check
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Table 12
Swing Speed and Swing Drift on a Slope |
Swing Time (seconds) |
Status(1) |
Item |
New |
Service Limit |
Actual |
Comments |
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Right Swing |
3.5 or less |
4.6 or less |
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Left Swing |
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Swing Drift mm (inch) |
Status(1) |
Item |
New |
Service Limit |
Actual |
Comments |
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Right Swing |
0 |
0 |
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Left Swing |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Cylinder Drift - Check (Loaded Bucket)
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Table 13
Cylinder Drift - Check (Loaded Bucket) |
Status(1) |
Item |
New |
Service Limit |
Actual |
Comments |
|
Boom Cylinder |
4.5 mm (0.18 inch) or less |
11.3 mm (0.44 inch) or less |
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Stick Cylinder |
12.0 mm (0.47 inch) or less |
30.0 mm (1.18 inch) or less |
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Bucket Cylinder |
18.0 mm (0.71 inch) or less |
45.0 mm (1.77 inch) or less |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Show/hide table
Table 14
Bucket Configuration Reference |
Model |
Capacity |
Weight |
Load |
B1225HD |
1.19 cubic meter (1.56 cubic yard) |
1020 kg (2250 lb) |
2000 kg (4409 lb) |
B1300GD |
1.3 cubic meter (1.70 cubic yard) |
880 kg (1940 lb) |
2300 kg (5070 lb) |
Cylinder Drift - Check (Empty Bucket)
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Table 15
Cylinder Drift - Check (Empty Bucket) |
Status(1) |
Item |
Cylinder Drift Side |
Drift Direction |
New |
Service Limit |
Actual |
Comments |
|
Boom Cylinder |
Retracted |
Boom Down |
5.0 mm (0.2 inch) or less |
11.0 mm (0.43 inch) or less |
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Stick Cylinder |
Extended |
Stick In |
10 mm (0.39 inch) or less |
25 mm (0.98 inch) or less |
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Retracted |
Stick Out |
25 mm (0.98 inch) or less |
63 mm (2.48 inch) or less |
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Bucket Cylinder |
Extended |
Bucket Closed |
20 mm (0.79 inch) or less |
50 mm (1.97 inch) or less |
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Retracted |
Bucket Open |
10 mm (0.39 inch) or less |
25 mm (0.98 inch) or less |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Cylinder Speed - Check
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Table 16
Cylinder Speed - Check |
Status(1) |
Machine |
Item |
Cylinder Position |
Cylinder Operating Speed (seconds) |
|
New |
Service Limit |
Actual |
Comments |
|
320 GC |
Boom |
Extension |
3.3 ± 0.3 |
5.0 ± 0.3 |
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Retraction |
2.3 ± 0.3 |
3.5 ± 0.3 |
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Stick |
Extension |
3.0 ± 0.3 |
4.5 ± 0.3 |
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Retraction |
2.7 ± 0.3 |
4.1 ± 0.3 |
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Bucket |
Extension |
3.2 ± 0.3 |
4.8 ± 0.3 |
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Retraction |
1.8 ± 0.3 |
2.7 ± 0.3 |
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320 |
Boom |
Extension |
3.3 ± 0.3 |
5.0 ± 0.3 |
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Retraction |
2.3 ± 0.3 |
3.5 ± 0.3 |
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Stick |
Extension |
3.2 ± 0.3 |
4.8 ± 0.3 |
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Retraction |
2.7 ± 0.3 |
4.1 ± 0.3 |
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Bucket |
Extension |
3.5 ± 0.3 |
5.3 ± 0.3 |
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Retraction |
1.8 ± 0.3 |
2.7 ± 0.3 |
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323 |
Boom |
Extension |
3.3 ± 0.3 |
5.0 ± 0.3 |
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Retraction |
2.3 ± 0.3 |
3.5 ± 0.3 |
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Stick |
Extension |
2.9 ± 0.3 |
4.4 ± 0.3 |
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Retraction |
2.7 ± 0.3 |
4.1 ± 0.3 |
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Bucket |
Extension |
3.5 ± 0.3 |
5.3 ± 0.3 |
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Retraction |
1.8 ± 0.3 |
2.7 ± 0.3 |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Hydraulic System
Reference: Refer to Testing & Adjusting, M0081159 for more detail on the following tests.
Pressure Reducing Valve (Pilot Oil) - Test and Adjust
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Table 17
Pressure Reducing Valve (Pilot)- Test and Adjust |
Status(1) |
Description |
Specification |
Actual |
Comments |
|
Pressure reducing valve |
4100 ±300 kPa (595 ± 44 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Accumulator (Pilot) - Test and Charge
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Table 18
Accumulator (Pilot) - Test |
Status(1) |
Description |
Specification |
Actual |
Comments |
|
Pilot Accumulator |
1035 kPa (150 psi) |
|
Should stay above 1035 kPa (150 psi) for 20 seconds |
Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Relief Valve (Main) - Test
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Table 19
Relief Valve (Main) - Test and Adjust |
|
Machine Settings |
Engine Speed |
Speed Dial "7"
AEC switch OFF |
Status(1) |
Item |
Specification |
Actual |
Comments |
|
Standard |
35000 + 500 - 2000 kPa (5076 + 73 - 290 psi) |
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Heavy Lift (2) |
38000 + 500 - 2000 kPa (5512 + 73 - 290 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
If equipped |
Relief Valve (Line) - Test
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Table 20
Relief Valve (Line) - Test and Adjust |
|
Machine Settings |
Main Relief Pressure(1) |
Standard |
35000 + 500 , - 2000 kPa (5076 + 73 , - 290 psi) |
Heavy lift |
38000 + 500, - 2000 kPa (5512 + 73, - 290 psi) |
Status(2) |
Cylinder |
Cylinder Position |
Engine Speed |
Relief Pressure Setting |
Actual |
Comments |
|
Boom |
Extended |
Speed Dial "7"
AEC switch OFF |
41000 ± 500 kPa (5947 ± 73 psi) |
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|
Retracted |
38000 ± 500 kPa (5511 ± 73 psi) |
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Stick |
Extended |
Speed Dial "7"
AEC switch OFF |
38000 ± 500 kPa (5511 ± 73 psi) |
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Retracted |
41000 ± 500 kPa (5947 ± 73 psi) |
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Bucket |
Extended |
Speed Dial "7"
AEC switch OFF |
38000 ± 500 kPa (5511 ± 73 psi) |
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Retracted |
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VA Boom |
Extended |
Speed Dial "7"
AEC switch OFF |
38000 ± 500 kPa (5511 ± 73 psi) |
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Retracted |
41000 ± 500 kPa (5947 ± 73 psi) |
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Show/hide table
(1) |
System pressure setting before temporary setting adjustment |
(2) |
N = Normal, M = Monitor, A = Action |
Relief Valve (Swing) - Test
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Table 21
Relief Valve (Swing) - Test and Adjust |
Status(1) |
Description |
Specification |
Actual |
Comments |
|
Right Swing |
25500 ±1000 kPa (3698 ±145 psi) |
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Left Swing |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Swing Bearing Movement - Measure
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Table 22
Swing Bearing Movement - Measure |
Status(1) |
Description |
Specification |
Actual |
Comments |
New |
Service Limit |
|
Vertical Movement of Swing Bearing |
2.0 mm (0.08 inch) |
4.0 mm (0.16 inch) |
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|
Circular Movement of Swing Bearing |
4.5 mm (0.18 inch) |
13.5 mm (0.53 inch) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Relief Valve (Crossover) - Test
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Table 23
Relief Valve (Crossover) - Test and Adjust |
Status(1) |
Item |
Direction |
Machine Settings |
Specification |
Actual |
Comments |
|
Left Travel |
Forward |
Engine speed dial "7"
AEC switch OFF |
37000 ± 500 kPa (5366 ± 73 psi) |
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|
Reverse |
Engine speed dial "7"
AEC switch OFF |
37000 ± 500 kPa (5366 ± 73 psi) |
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Right Travel |
Forward |
Engine speed dial "7"
AEC switch OFF |
37000 ± 500 kPa (5366 ± 73 psi) |
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Reverse |
Engine speed dial "7"
AEC switch OFF |
37000 ± 500 kPa (5366 ± 73 psi) |
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|
Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
S.O.S
Show/hide table
Table 24
Status(1) |
Description |
Obtain |
Comments |
|
Engine Oil Sample |
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Engine Coolant Sample (Level II) |
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Hydraulic Oil Sample |
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Swing Drive Oil Sample |
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Right Final Drive Oil Sample |
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Left Final Drive Oil Sample |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |