521B and 522B Track Feller Bunchers TA2 Technical Inspection{7000, 753T}
- Track Feller Buncher:
- 521B (S/N: F7B1-UP)
- 522B (S/N: F7C1-UP)
Introduction
Inspections are the most basic form of condition monitoring. The 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 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
Use the following procedure to create an editable electronic copy from SIS Web.
- Click format to print.
- Save the document as an HTML format.
- Open the document with Microsoft Word.
Electrical System
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| 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 (engine stopped) | 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 (2) |
Electric SystemVoltage 16 VDC to 24 VDC at −27° C (−80° F) −10° C (-50° F) |
Refer to Testing and Adjusting, KENR5291, "Electric Starting System - Test". |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
| ( 2 ) | The current and the voltages that are specified in the Specifications Module are measured at a temperature of 27°C (80°F). When the temperature is below 27°C (80°F), the voltage will be lower through the starting motor. When the temperature is below 27°C (80°F), the current through the starting motor will be higher. If the current is too great, a problem exists in the starting motor. Repair the problem or replace the starting motor. |
Engine
Refer to Systems Operation/Testing and Adjusting, SENR9830, "C9 Engines for Caterpillar Built Machines " for more detail on the following test.
Cooling System
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| Status (1) | Description | Specification | Actual | Comments |
| Radiator Pressure Relief (Radiator Cap) (2) | - | |||
| Freezing Point of Engine Coolant | - | |||
| Conditioner Test of Engine Coolant | - | |||
| Belt Tension | - | |||
| Difference between the Upper and Lower Radiator Tank Temperatures | - |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
| ( 2 ) | Test for the pressure that is listed on the cap. |
Fuel System
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| Status (1) | Description | Specification | Actual | Comments |
| Fuel Pressure Low Idle | 413 ± 20 kPa (60 ± 3 psi) |
|||
| Fuel Pressure High Idle | 517 ± 62 kPa (75 ± 9 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Lubrication System
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| Status (1) | Description | Specification | Actual | Comments |
| Engine Oil Pressure at Low Idle | 103 kPa (15 psi) to 386 kPa (56 psi) |
|||
| Engine Oil Pressure at High Idle | 248 kPa (36 psi) to 599.84412 kPa (87 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Basic Engine
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| Status (1) | Description | Specification | Actual | Comments |
| Engine Speed at Low Idle | 800 ± 10 RPM | |||
| Engine Speed at High Idle | 2100 ± 10 RPM | |||
| Cylinder Cutout Test | - |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Air Inlet and Exhaust System
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| Status (1) | Description | Specification | Actual | Comments |
| 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) | - |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
| ( 2 ) | Compare the exhaust temperature variance at each exhaust port. |
Performance Checks
ReferenceRefer to Testing & Adjusting, KENR5579, "521B and 522B Track Feller Bunchers Machine Systems" for more detail on the following test.
Operational Checks
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| Status (1) | Description | Specification (Time) | Actual | Comments |
|---|---|---|---|---|
| Tool Cylinder (Extend with saw head) | Less than 7 | |||
| Tool Cylinder ( Retract with saw head) | Less than 5 | |||
| Stick In (without saw head) | Less than 11 | |||
| Stick Out (without saw head) | Less the 6 | |||
| Saw Rotate (Clockwise partial tilt) | 3 ± 0.5 | |||
| Saw Rotate (Counterclockwise partial tilt) | 3 ± 0.5 | |||
| Saw Rotate (Clockwise full tilt) | 11 ± 3 | |||
| Saw Rotate (Counterclockwise full tilt) | 11 ± 3 | |||
| Gather Arm Cylinder (Move the arm from close to open position.) | Less than 1.3 | |||
| Gather Arm Cylinder (Move the arm from open to close position.) | Less than 1.3 | |||
| Buncher Arm Cylinder (Move the arm from close to open position.) | Less than 1.3 | |||
| Buncher Arm Cylinder (Move the arm from open to close position.) | Less than 1.3 |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Pressure Specifications
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| Control Valves | ||||
|---|---|---|---|---|
| Description | Implement | Travel | Actual | Comments |
| Main Relief Valve (Load Sensing) | Felling Head and Harvester Head (1) 35700 ± 300 kPa (5178 ± 44 psi) |
35700 ± 300 kPa (5178 ± 44 psi) |
||
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| ( 1 ) | Use the relief valve on the travel control valve to set the main relief pressure for the system. |
Note: All pressures are checked at the pump.
Implement Control Valve (High Flow Non-Tilt)
Note: All pressures are recorded at the pump port except for line relief pressures which are recorded at the port for the load sensing.
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| 373-7704 Main Control Valve Gp | |||||
|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | |
| Function | Accumulate | Swing | Stick | Boom | Actual |
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
|
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
23000 kPa (3336 psi) |
|
| Flow Rate | 175 L/min (46 US gpm) |
180 L/min (48 US gpm) |
22 L/min (6 US gpm) |
100 L/min (26 US gpm) |
|
| Flow Rate | 175 L/min (46 US gpm) |
180 L/min (48 US gpm) |
220 L/min (58 US gpm) |
210 L/min (55 US gpm) |
|
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | |
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | ||
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | ||
| Signal Limiter Valve | - | - | - | 20500 kPa (2973 psi) |
|
Implement Control Valve (Low Flow Non-Tilt)
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| 373-7702 Main Control Valve Gp | |||||
|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | |
| Function | Accumulate | Swing | Stick | Boom | Actual |
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
|
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
23000 kPa (3336 psi) |
|
| Flow Rate | 120 L/min (32 US gpm) |
180 L/min (48 US gpm) |
22 L/min (6 US gpm) |
100 L/min (26 US gpm) |
|
| Flow Rate | 120 L/min (32 US gpm) |
180 L/min (48 US gpm) |
220 L/min (58 US gpm) |
210 L/min (55 US gpm) |
|
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | |
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | ||
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | ||
| Signal Limiter Valve | - | - | - | 20500 kPa (2973 psi) |
|
Implement Control Valve (Low Flow Tilt)
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| 373-7693 Main Control Valve Gp | ||||||
|---|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | 5 | |
| Function | Accumulate | Swing | Stick | Tilt Side and Tilt Forward | Boom | Actual |
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
- | 35000 kPa (5076 psi) |
|
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
- | 23000 kPa (3336 psi) |
|
| Flow Rate | 120 L/min (32 US gpm) |
180 L/min (48 US gpm) |
22 L/min (6 US gpm) |
150 L/min (40 US gpm) |
100 L/min (26 US gpm) |
|
| Flow Rate | 120 L/min (32 US gpm) |
180 L/min (48 US gpm) |
220 L/min (58 US gpm) |
150 L/min (40 US gpm) |
210 L/min (55 US gpm) |
|
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | - | |
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | - | - | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | - | 20500 kPa (2973 psi) |
|
Implement Control Valve (High Flow Tilt)
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| 361-5306 Main Control Valve Gp | ||||||
|---|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | 6 | Actual |
| Function | Accumulate | Swing | Stick | Tilt Side and Tilt Forward | Boom | |
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
- | 35000 kPa (5076 psi) |
|
| Line Relief Setting | 28000 kPa (4061 psi) |
- | 35000 kPa (5076 psi) |
- | 23000 kPa (3336 psi) |
|
| Flow Rate | 175 L/min (46 US gpm) |
180 L/min (48 US gpm) |
22 L/min (6 US gpm) |
150 L/min (40 US gpm) |
100 L/min (26 US gpm) |
|
| Flow Rate | 175 L/min (46 US gpm) |
180 L/min (48 US gpm) |
220 L/min (58 US gpm) |
150 L/min (40 US gpm) |
210 L/min (55 US gpm) |
|
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | - | |
| Signal Limiter Valve | 22000 kPa (3191 psi) |
- | - | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | - | - | |
| Signal Limiter Valve | - | 25700 kPa (3728 psi) |
- | - | - | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | 21000 kPa (3046 psi) |
- | |
| Signal Limiter Valve | - | - | - | - | 20500 kPa (2973 psi) |
|
Travel Control Valve (Low Flow)
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| 373-7694 Main Control Valve Gp | |||||
|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | |
| Function | Travel Right or Travel Left | Tool | Rotate / Wrist | Grab | Actual |
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
|
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
|
| Flow Rate | 210 L/min (56 US gpm) |
165 L/min (44 US gpm) |
185 L/min (49 US gpm) |
120 L/min (32 US gpm) |
|
| Flow Rate | 210 L/min (56 US gpm) |
235 L/min (62 US gpm) |
185 L/min (49 US gpm) |
120 L/min (32 US gpm) |
|
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | |
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | |
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
|
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
|
Travel Control Valve (High Flow)
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| 373-7703 Main Control Valve Gp | |||||
|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | |
| Function | Travel Right or Travel Left | Tool | Rotate / Wrist | Grab | Actual |
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
|
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
|
| Flow Rate | 210 L/min (56 US gpm) |
165 L/min (44 US gpm) |
185 L/min (49 US gpm) |
175 L/min (46 US gpm) |
|
| Flow Rate | 210 L/min (56 US gpm) |
235 L/min (62 US gpm) |
185 L/min (49 US gpm) |
175 L/min (46 US gpm) |
|
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | |
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | |
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
|
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
|
Control Valve (Intermittent Saw)
Note: Set to manufacturing specifications for the saw motor
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| 361-5307 Control Valve Gp | ||||||
|---|---|---|---|---|---|---|
| Section | 2 | 3 | 4 | 5 | 6 | |
| Function | Travel Right or Travel Left | Tool | Rotate / Wrist | Grab | Intermittent Saw | Actual |
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
- | |
| Line Relief Setting | - | 35000 kPa (5076 psi) |
35000 kPa (5076 psi) |
28000 kPa (4061 psi) |
- | |
| Flow Rate | 210 L/min (56 US gpm) |
165 L/min (44 US gpm) |
185 L/min (49 US gpm) |
175 L/min (46 US gpm) |
210 L/min (56 US gpm) |
|
| Flow Rate | 210 L/min (56 US gpm) |
235 L/min (62 US gpm) |
185 L/min (49 US gpm) |
175 L/min (46 US gpm) |
210 L/min (56 US gpm) |
|
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | - | |
| Signal Limiter Valve | - | - | 26000 kPa (3771 psi) |
- | - | |
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
- | |
| Signal Limiter Valve | - | - | - | 22000 kPa (3191 psi) |
- | |
| Signal Limiter Valve | - | - | - | - | 24200 kPa (3510 psi) |
|
| Signal Limiter Valve | - | - | - | - | 24200 kPa (3510 psi) |
|
| Signal Limiter Valve | - | - | - | - | 24200 kPa (3510 psi) |
|
| Signal Limiter Valve | - | - | - | - | 24200 kPa (3510 psi) |
|
Main Pumps
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| Description | Specifications | Actual | Comments |
|---|---|---|---|
| Standby Pressure | 4000 kPa (580 psi) |
||
| Margin Pressure | 2500 ± 100 kPa (363 ± 15 psi) |
Saw Pump
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| Description | Specifications | Actual | Comments |
|---|---|---|---|
| Pump Compensator Pressure (Cutoff) | 31000 kPa (4496 psi) |
||
| Load Sensing Control Pressure | 2000 kPa (290 psi) |
Pilot Pump
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| Description | Specifications | Actual | Comments |
|---|---|---|---|
| Relief Valve Pressure | 4100 ± 100 kPa (595 ± 15 psi) |
Travel Speed
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| Travel Time (time in seconds) (521B) | ||||
|---|---|---|---|---|
| Travel Speed | Time | Actual | Comments | |
| HIGH | Forward | 15 ± 2 | ||
| Reverse | ||||
| LOW | Forward | 28 ± 4 | ||
| Reverse | ||||
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| Travel Time (time in seconds) (522B) | ||||
|---|---|---|---|---|
| Travel Speed | Time | Actual | Comments | |
| HIGH | Forward | 18 ± 2 | ||
| Reverse | ||||
| LOW | Forward | 30 ± 4 | ||
| Reverse | ||||
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| Time Per Three Revolutions (time in seconds) (521B) | ||||
|---|---|---|---|---|
| Travel Speed | Time | Actual | Comments | |
| HIGH | Forward | 25 ± 3 | ||
| Reverse | ||||
| LOW | Forward | 47 ± 6 | ||
| Reverse | ||||
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| Time Per Three Revolutions (time in seconds) (522B) | ||||
|---|---|---|---|---|
| Travel Speed | Time | Actual | Comments | |
| HIGH | Forward | 30 ± 3 | ||
| Reverse | ||||
| LOW | Forward | 50 ± 6 | ||
| Reverse | ||||
Machine Systems
ReferenceRefer to Testing & Adjusting, KENR5579, "521B and 522B Track Feller Bunchers Machine Systems" for more detail on the following test.
Piston Pump (Implement)
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| Status (1) | Description | Specification | Actual | Comments |
| Low Pressure Standby (Low Idle) | 4000 ± 200 kPa (580 ± 29 psi) |
|||
| Margin Pressure at High Idle | 2500 ± 100 kPa (363 ± 15 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Load Sensing Relief Valve (Implement)
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| Status (1) | Description | Specification | Actual | Comments |
| Load Sensing Relief Valve | 35700 ± 300 kPa (5178 ± 44 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Piston Pump (Attachment)
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| Status (1) | Description | Specification | Actual | Comments |
| Feller Buncher | 28300 ± 300 kPa (4105 ± 44 psi) |
|||
| Intermittent Saw | 28300 ± 300 kPa (4105 ± 44 psi) |
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Swing Motor Relief Valve Pressure
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| Swing Motor Crossover Relief Pressure | ||||
|---|---|---|---|---|
| Status (1) | Description | Specification | Actual | Comments |
| Swing Motor Relief Valve Pressure | 32000 ± 300 kPa (4641 ± 44 psi) |
|||
| Swing Signal Limiter Valve Pressure | 30300 ± 300 kPa (4395 ± 44 psi) |
|||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Pressure Reducing Valve (Feed Reduction) (Signal Limiter Valve)
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| Pressure Reducing Valve (Feed Reduction) | ||||
|---|---|---|---|---|
| Status (1) | Description | Specification | Actual | Comments |
| Rotate / Wrist CW. | 28100 ± 300 kPa (4076 ± 44 psi) |
|||
| Rotate / Wrist CCW. | ||||
| Swing Left | 30300 ± 300 kPa (4395 ± 44 psi) |
|||
| Swing Right | ||||
| Grab (Open) | 24100 ± 300 kPa (3495 ± 44 psi) |
|||
| Grab (Close) | ||||
| Accumulator (Open) | 24100 ± 300 kPa (3495 ± 44 psi) |
|||
| Accumulator (Close) | ||||
| Boom UP | 22800 ± 300 kPa (3307 ± 44 psi) |
|||
| Intermittent Saw | 26300 ± 300 kPa (3815 ± 44 psi) |
|||
| Tilt Left | 23100 ± 300 kPa (3350 ± 44 psi) |
|||
| Tilt Right | ||||
| Tilt Forward | ||||
| Tilt Back | ||||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Travel Motor Head
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| Travel Motor Head Pressure | ||||
|---|---|---|---|---|
| Status (1) | Description | Specifications | Actual | Comments |
| Motor Work Pressure | 28600 ± 300 kPa (4148 ± 44 psi) |
|||
| Motor Shift Pressure | 3850 ± 350 kPa (558 ± 51 psi) |
|||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Relief Valve (Line for Travel Motor)
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| Relief Valve Travel Motor | ||||
|---|---|---|---|---|
| Status (1) | Descriptions | Specifications | Actual | Comment |
| Margin Travel Relief Pressure | 35700 ± 300 kPa (5178 ± 44 psi) |
|||
| Travel Motor (Forward) (right track) | 40000 ± 300 kPa (5800 ± 50 psi) |
|||
| Travel Motor (Reverse) (right track) | 40000 ± 300 kPa (5800 ± 50 psi) |
|||
| Travel Motor (Forward) (left track) | 40000 ± 300 kPa (5800 ± 50 psi) |
|||
| Travel Motor (Reverse) (left track) | 40000 ± 300 kPa (5800 ± 50 psi) |
|||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Travel Motor Brake Release
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| Travel Motor Brake Release Pressure | ||||
|---|---|---|---|---|
| Status (1) | Description | Specification | Actual | Comments |
| Brake Release Pressure | 2500 ± 70 kPa (363 ± 10 psi) |
|||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Relief Valve (Hood Tilt Pump and Motor)
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| Hood Tilt Pump Relief Valve Pressure | ||||
|---|---|---|---|---|
| Status (1) | Description | Specifications | Actual | Comments |
| Hood Tilt Pump Pressure | 20684 kPa (3000 psi) |
|||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
Disc Saw Performance
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| Disc Saw Performance | ||||
|---|---|---|---|---|
| Status (1) | Description | Specifications | Actual | Comments |
| Saw Pump Pressure | 31000 ± 300 kPa (4496 ± 44 psi) |
|||
| Saw Motor Inlet Pressure | 4135 ± 170 kPa (600 ± 25 psi) |
|||
| Saw Speed | 1200 ± 25 RPM | |||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
S.O.S
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| Status (1) | Description | Obtain | Comments | |
| Engine Oil Sample | ||||
| Engine Coolant Sample (Level II) | ||||
| Hydraulic Oil Sample | ||||
| Front Right Final Drive Oil Sample | ||||
| Front Left Final Drive Oil Sample | ||||
| Rear Right Final Drive Oil Sample | ||||
| Rear Left Final Drive Oil Sample | ||||
| Transfer Case Oil Sample | ||||
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| ( 1 ) | N = Normal, M = Monitor, A = Action |
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789D Off-Highway Truck Oil Filter (Rear Axle)
2011/12/01 New Brake Pressure Warning Switch is Now Used on Certain Backhoe Loaders {4269}
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 3709 - FMI 03
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 3709 - FMI 05