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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 can result from rotating and moving parts. Stay clear of all rotating and moving parts. Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified. The machine must be parked on a level surface and the engine stopped. Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine. |
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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. |
| Machine Test Parameters | ||
|---|---|---|
| Date | Product or Component SN | |
| Measurement Location | Measurement | Actual |
| Engine High Idle Test Speed | 2200 rpm | |
| Hydraulic oil temperature for test | |
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| Test Specifications | ||
|---|---|---|
| Date | Product or Component SN | |
| Location | Specification | Actual |
| Fan speed. | 2200 ± 300 rpm | |
This procedure provides the method used to measure the speed of the fan for the ventilation system.
| Required Tools | ||||
|---|---|---|---|---|
| Tool | Item | Qty | Part No | Description |
| A | 1 | 351-8635 | Tachometer Kit | |
- Ventilation fan flow can be measured at the ventilation flow gauge (1). If the indicated flow is less than 0.6 inches (w.c.), the ventilation system and the pitot tube should be cleaned and inspected. If the indicated flow remains below specification, go to Step 2 to check ventilation fan speed.
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Illustration 2 g03428552 - Remove four bolts (3) from the base of fumes exhaust stack (2). Remove the fumes exhaust stack.
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Illustration 3 g03428583 - Unhook latches (4) and open rear engine compartment cover (5).
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Illustration 4 g03428595 - Remove four bolts (6). Remove pitot tube housing (7) and place to the side of the fumes exhaust duct. Do not disconnect the pitot tube pickup hose.
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Illustration 5 g03428611 - Remove six bolts (8). Remove fumes exhaust duct (9).
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Illustration 6 g03428632 Fumes Exhaust Duct Removed For Access To Ventilation Fan Show/hide tablePersonal 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.
- Place piece of reflective tape (11) from Tool (A) on one of the blades of fan (10).
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| Illustration 1 | g03428358 |
Note: If the machine is configured with 10 m package, lower the auxiliary pressure to
- Move machine power switch (12) to the ON position.
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Illustration 8 g03668552 - Press push to start switch (14) for 2 seconds in order to start the engine. An LED next to the push to start switch will flash when the engine is in start mode. When the engine has started, the LED will remain illuminated.
Note: Only one attempt to start the engine is allowed per key cycle. A new key cycle will need to be done in order to restart the process.
- Operate the engine at low idle for a few minutes.
- Press the up arrow on throttle control switch (15) in order to place the engine in high idle. The engine speed should increase to 2200 rpm.
- Monitor the hydraulic oil temperature on operator display (13). Operate the machine until the oil temperature reaches
43 ± 5.6 °C (110 ± 10 °F) . - Measure fan speed with Tool (A). The fan speed should be 2200 ± 300 rpm.
- Press the down arrow on throttle control switch (15) in order to operate the engine in low idle.
- Shut off the engine. Either place machine power switch (12) in the OFF position or press and hold push to start switch (14) for 3 seconds. An LED next to the push to start switch will flash when the engine is in shutdown mode.
Note: The engine may run for several minutes when placed in the shutdown mode.
- If the engine was shut down using the push to start switch (14), move machine power switch (12) to the OFF position.
- If the ventilation fan speed is outside the specified range, inspect and clean the orifice in the flow control valve. If ventilation fan speed remains outside the specified range, repair or replace the ventilation fan motor.
- Replace fumes exhaust duct (9). Replace six bolts (8).
- Replace pitot tube housing (7). Replace four bolts (6).
- Replace fumes exhaust stack (2). Replace four bolts (3).
- Close rear engine compartment cover (5). Secure latches (4).
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| Illustration 7 | g03428689 |
