- Excavator
- 326D2 (S/N: LJE1-UP; JFG1-UP; KER1-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
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Electrical System
Show/hide table
Table 1
Status(1) |
Description |
Specification |
Actual |
Comments |
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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). |
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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
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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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Maximum Fuel Pressure of the High Pressure Fuel System |
190 MPa (27557 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) |
Description |
Specification |
Actual |
Comments |
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Minimum Engine 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)" |
Conditions |
Specifications |
Status(1) |
Engine |
"AEC" Switch Position |
"Engine Speed Dial" Position |
Time (sec) |
New |
Service Limit |
Actual |
Comments |
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No load |
OFF |
10 |
0 to 5 |
1700 ± 50 rpm |
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OFF |
10 |
> 5 |
1600 ± 50 rpm |
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ON |
10 |
> 5 |
1050 ± 50 rpm |
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OFF |
1 |
> 5 |
950 ± 50 rpm |
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One touch low idle |
> 0 |
1050 ± 50 rpm |
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Load(2) |
OFF |
10 |
> 3 to 5 |
1700 ± 50 rpm |
≥ 1600 rpm |
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Travel(3) |
OFF |
10 |
0 to 5 |
1800 ± 50 rpm |
≥ 1750 rpm |
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Travel(4) |
OFF |
10 |
0 to 5 |
1700 ± 50 rpm |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Two pump main relief (Boom UP). |
(3) |
Max at Full Load |
(4) |
Max at No Load |
Air Inlet and Exhaust System
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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, M0084889, "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" |
Status(1) |
Travel Speed |
New |
Service Limit |
Actual |
Comments |
Travel Time (time in seconds) |
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HIGH |
Forward |
13.2 ± 1.0 |
17.2 or less |
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Reverse |
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LOW |
Forward |
21.2 ± 1.5 |
27.6 or less |
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Reverse |
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Travel Deviation(2) mm (inch) |
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HIGH |
Forward |
650 mm (25.6 inch) or less |
1500 mm (59.1 inch) or less |
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Reverse |
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LOW |
Forward |
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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) |
Undercarriage |
Travel Speed |
New |
Service Limit |
Actual |
Comments |
Right |
Left |
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Standard |
HIGH |
Forward |
17.8 ± 1.0 |
23.1 or less |
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Reverse |
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LOW |
Forward |
28.8 ± 1.5 |
37.4 or less |
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Reverse |
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Long |
HIGH |
Forward |
19.2 ± 1.0 |
25.0 or less |
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Reverse |
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LOW |
Forward |
31.3 ± 1.5 |
40.7 or less |
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Reverse |
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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 9
"Machine Drift on a Slope - Check" |
Status(1) |
Description |
Specification |
Actual |
Comments |
New |
Rebuild |
Service Limit |
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Machine Drift |
0 mm |
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 10
"Swing Speed and Overswing on Level Ground - Check" |
Status(1) |
Description |
New |
Service Limit |
Actual |
Comments |
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Swing Speed (three Revolutions) (seconds) |
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Right Swing |
19.2 ± 1.0 |
25.0 or less |
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Left Swing |
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Swing Acceleration on Level Ground (seconds) |
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Right Swing |
4.5 or less |
5.9 or less |
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Left Swing |
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Overswing mm (inch) |
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Right Swing |
1054 mm (41.5 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 11
"Swing Speed and Swing Drift on a Slope" |
Status(1) |
Description |
New |
Service Limit |
Actual |
Comments |
Swing Time (seconds) |
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Right Swing |
4.6 or less |
6.0 or less |
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Left Swing |
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Swing Drift mm (inch) |
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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 12
"Cylinder Drift - Check (Loaded Bucket)" |
Status(1) |
Description |
New |
Service Limit |
Actual |
Comments |
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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 (0.5 inch) or less |
30.0 mm (1.18 inch) or less |
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Bucket Cylinder |
18.0 mm (0.7 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 |
Cylinder Drift - Check (Empty Bucket)
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Table 13
"Cylinder Drift - Check (Empty Bucket)" |
Status(1) |
Description |
Cylinder Drift Side |
Drift Direction |
New |
Service Limit |
Actual |
Comments |
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Boom Cylinder |
Retracted |
Boom Down |
4.5 mm (0.18 inch) or less |
11.3 mm (0.44 inch) or less |
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Stick Cylinder |
Extended |
Stick In |
10.0 mm (0.39 inch) or less |
25.0 mm (0.98 inch) or less |
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Retracted |
Stick Out |
25.0 mm (0.98 inch) or less |
62.5 mm (2.46 inch) or less |
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Bucket Cylinder |
Extended |
Bucket Closed |
20.0 mm (0.79 inch) or less |
50.0 mm (1.97 inch) or less |
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Retracted |
Bucket Open |
10.0 mm (0.39 inch) or less |
25.0 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 14
"Cylinder Speed - Check" |
Status(1) |
Description |
Cylinder Position |
Cylinder Operating Speed (seconds) |
New |
Service Limit |
Actual |
Comments |
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Boom |
Extension |
2.8 ± 0.3 |
4.2 |
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Retraction |
2.3 ± 0.3 |
3.5 |
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Stick |
Extension |
2.7± 0.3 |
4.1 |
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Retraction |
2.3 ± 0.3 |
3.5 |
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Bucket |
Extension |
4.3 ± 0.3 |
6.5 |
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Retraction |
2.3 ± 0.3 |
3.5 |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Pilot System
Reference: Refer to Testing & Adjusting, M0084889 for more detail on the following tests.
Relief Valve (Pilot) - Test and Adjust
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Table 15
"Relief Valve (Pilot) - Test and Adjust" |
Status(1) |
Machine Settings |
Engine Speed |
Speed Dial "10"
AEC switch OFF |
|
Description |
Specification |
Actual |
Comments |
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Pilot relief valve pressure |
4100 ± 200 kPa (595 ± 29 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 16
"Accumulator (Pilot) - Test and Charge" |
Status(1) |
Description |
Specification |
Actual |
Comments |
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Pilot Accumulator |
1035 kPa (150 psi) |
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Should stay above 1035 kPa (150 psi) for 20 seconds |
Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Power Shift Pressure - Check
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Table 17
"Power Shift Pressure - Check" |
Status(1) |
Description |
Machine Settings |
Specification |
Commanded(2) |
Actual(3) |
Comments |
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Power Shift Pressure
(No Load) |
Speed Dial "10"
AEC switch OFF |
3700 ± 250 kPa (537 ± 36 psi) |
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Power Shift Pressure
(Full Load) |
950 ± 300 kPa (138 ± 44 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
(2) |
Value from the monitor |
(3) |
Value from the pressure gauge |
Main Control Valve
Reference: Refer to Testing & Adjusting, M0084889 for more detail on the following tests.
Relief Valve (Main) - Test and Adjust
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Table 18
"Relief Valve (Main) - Test and Adjust" |
Status(1) |
Description |
Machine Settings |
Specification |
Actual |
Comments |
|
Standard |
Speed Dial "10"
AEC switch OFF |
35000 + 500 - 1000 kPa (5076 + 73 - 145 psi) |
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Heavy Lift |
36000 + 500 - 1000 kPa (5221 + 73 - 145 psi) |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Relief Valve (Line) - Test and Adjust
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Table 19
"Relief Valve (Line) - Test and Adjust" |
Status(1) |
Cylinder |
Cylinder Position |
Machine Settings |
Relief Pressure Setting |
Actual |
Comments |
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Boom |
Extended |
Speed Dial "10"
AEC switch OFF |
38000 ± 500 kPa (5511 ± 73 psi) |
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Retracted |
37000 ± 500 kPa (5366 ± 73 psi) |
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Stick |
Extended |
37000 ± 500 kPa (5366 ± 73 psi) |
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Retracted |
38000 ± 500 kPa (5511 ± 73 psi) |
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Bucket |
Extended |
37000 ± 500 kPa (5366 ± 73 psi) |
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Retracted |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Swing System
Reference: Refer to Testing & Adjusting, M0084889 for more detail on the following tests.
Relief Valve (Swing) - Test and Adjust
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Table 20
"Relief Valve (Swing) - Test and Adjust" for 334 - 9970 Swing Motor Gp |
Status(1) |
Description |
Machine Settings |
Specification |
Actual |
Comments |
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Right Swing |
Engine speed dial "10"
AEC switch OFF |
26400 ± 1000 kPa (3830 ± 145 psi) |
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Left Swing |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Show/hide table
Table 21
"Relief Valve (Swing) - Test and Adjust" for 482 - 6393 Swing Motor Gp |
Status(1) |
Description |
Machine Settings |
Specification |
Actual |
Comments |
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Right Swing |
Engine speed dial "10"
AEC switch OFF |
27300 ± 1000 kPa (3960 ± 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 |
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Vertical Movement of Swing Bearing |
1.5 mm (0.06 inch) |
3.0 mm (0.12 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 |
Travel System
Reference: Refer to Testing & Adjusting, M0084889 for more detail on the following tests.
Relief Valve (Crossover) - Test and Adjust
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Table 23
"Relief Valve (Crossover) - Test and Adjust" |
Status(1) |
Sales Model |
Description |
Direction |
Specification |
Actual |
Comments |
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326D2 (S/N: JFG1-UP; KER1-UP; LJE1-10012) |
Left Travel |
Forward |
37000 ± 500 kPa (5366 ± 73 psi) |
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Reverse |
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Right Travel |
Forward |
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Reverse |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
Relief Valve (Crossover) - Test and Adjust
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Table 24
"Relief Valve (Crossover) - Test and Adjust" |
Status(1) |
Sales Model |
Description |
Direction |
Specification |
Actual |
Comments |
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326D2 (S/N: LJE10013-UP) |
Left Travel |
Forward |
37000 ± 1500 kPa (5439 ± 218 psi) |
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Reverse |
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Right Travel |
Forward |
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Reverse |
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Show/hide table
(1) |
N = Normal, M = Monitor, A = Action |
S.O.S
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Table 25
Status(1) |
Description |
Obtain |
Comments |
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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 |