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Diesel engine exhaust contains products of combustion which may cause personal injury. Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside. |
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Personal injury or death can result from sudden machine movement. Sudden movement of the machine can cause injury to persons on or near the machine. To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine. |
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Personal injury can result from rotating and moving parts. Moving fan blades and moving parts will throw or cut any object or tool that falls or is pushed into them. Make sure no one is working on, underneath or close to an engine that is running. Make sure the area is free of personnel. |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
| Machine Test Parameters | ||
|---|---|---|
| Date | Product or Component SN | |
| Measurement Location | Measurement | Actual |
| Minimum hydraulic oil temperature for test | |
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| High rpm | 2310 ± 50 rpm | |
| Test Specifications | ||
|---|---|---|
| Date | Product or Component SN | |
| Test | Measurements | Actual |
| Minimum parking brake pressure. | |
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A parking brake that is not functioning properly may allow unexpected machine movement. This procedure provides a method to check the parking brake.
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| Illustration 1 | g02571852 |
| Required Tools | ||||
|---|---|---|---|---|
| Tool | Item | Qty | Part No | Description |
| A | 198-4240 | Digital Pressure Indicator Gp | ||
| A1 | 1 | 198-4234 | Digital Indicator | |
| A2 | 2 | 198-4237 | Pressure Sensor Gp
Zero to |
|
| A3 | 2 | 198-4236 | Adapter Cable As | |
- Connect Tool (A2) to each Tool (A3).
- Connect Tool (A3) to Tool (A1).
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| Illustration 2 | g03850826 |
| Required Tools | ||||
|---|---|---|---|---|
| Tool | Item | Qty | Part No | Description |
| B | B1 | 1 | 8T-0855 | Pressure Gauge
Zero to |
| B2 | 1 | 6V-4144 | Quick Connect Coupler | |
| C | C1 | 1 | 6V-4142 | Fitting |
| C2 | 1 | 177-7860 | Hose As | |
| C3 | 1 | 6V-4143 | Quick Connect Coupler | |
- Connect tool (B) to Tool (C).
| Required Tools | ||||
|---|---|---|---|---|
| Tool | Item | Qty | Part No | Description |
| D | D1 | 1 | 7X-2444 | Swivel Tee |
| D2 | 1 | 4J-5477 | O-Ring Seal | |
| E | E1 | 1 | 110-6349 | Fitting As |
| E2 | 1 | 4J-5477 | O-Ring Seal | |
- Connect Tool (D) to Tool (E)
- Drive the machine to a smooth, horizontal surface.
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Illustration 3 g06019489 - Move propel lever (1) to the NEUTRAL position.
- Move parking brake switch (2) to the ON position.
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Illustration 4 g06019492 - After the engine has operated at low idle for 5 minutes, move engine start switch (3) to the OFF position.
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Illustration 5 g06019498 - Unhook latch (5) at the rear of the engine compartment, and open engine hood (4).
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Illustration 6 g06019509 - Move hood support bracket (6) to support engine hood (4).
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Illustration 7 g06022375 - Disconnect hose assembly (8) from tee (7) on the brake release pump . Install Tool (D) to the tee on the hydraulic fitting on the brake release pump. Connect the hose assembly to the other end of Tool (D). Connect Tool (E) to the branch of Tool (D). Connect Tool (A2) to Tool (E).
- Move engine start switch (3) into the ON position. When the "Wait to start engine" message disappears from display (9), move the engine start switch to the START position. Release the switch when the engine starts.
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Illustration 9 g06024846 - Operate the engine at low idle for a few minutes. Use throttle increase switch (10) to operate the engine at high idle.
- Monitor the hydraulic oil temperature on display (9). Operate the machine until the oil temperature reaches a minimum of
45 °C (113 °F) . - Move parking brake switch (2) to the OFF position.
- Move propel lever (1) to the FORWARD position.
- Read the pressure on Tool (A). The pressure should be a minimum of
1930 kPa (280 psi) . - Move propel lever (1) to the NEUTRAL position.
- Move engine start switch (3) to the OFF position.
- If the pressure was lower than the specification, troubleshoot the parking brake system.
- If the pressure is correct, remove the tooling from the brake release pump. Connect hose assembly (8) to tee (7) on the brake release pump.
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Illustration 10 g06021588 - Move hood support bracket (6) in the stored position. Close engine hood (4) and secure latch (5).
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| Illustration 8 | g06024834 |
