DIESEL PARTICULATE FILTER (DPF) MUFFLER OPERATING THE ENGINE 6. Tips on diesel particulate filter (DPF) regeneration Operation The higher in speed or load the engine operates, the higher the exhaust temperature rises. As a result, particulate matter (PM) inside the DPF is consumed and the regeneration process is required less frequently over time. The lower in speed or load the engine operates, the lower the exhaust temperature. Accordingly, less particulate matter (PM) inside the DPF is consumed and more accumulation of PM will occur, which requires frequent regeneration. Therefore, avoid prolonged idling if possible.
Necessary conditions for “Regeneration” When the conditions below are all satisfied, regeneration will start. However, if even one condition is deviated from during the process, the regeneration will be interrupted. The engine coolant temperature. The DPF temperature. The engine speed is 1200 rpm or higher. Usually, it takes 15-20 minutes to complete the regeneration cycle. Actual regeneration time may depend on ambient temperature, exhaust temperature and engine speed. It is recommended to do the regenerating while the engine is warm. Do not unnecessarily start and interrupt the regeneration process.
Otherwise, a small amount of fuel becomes mixed with the engine oil, which degrades the oil quality. While the DPF is being regenerated, the engine air flow rate is automatically limited to keep up the exhaust temperature. Because of this, the engine may sound differently, but this is normal for this engine. Just after the regeneration has ended, the DPF muffler remains hot. It is advisable to keep the engine running for about 5 minutes to allow cooling of the exhaust components. (1) Parking brake warning indicator Applying the parking brake lever: Pull the parking brake lever up to the parking position. (1) Parking brake lever (A) “Pull up to parking position” IMPORTANT :
If the tractor is operated with the parking brake set, the parking brake will be damaged. If the tractor is traveling when the parking brake lever is applied, a warning buzzer will sound. If the buzzer sounds, immediately release the parking brake lever. STARTING THE ENGINE Applying the gear-locked parking brake lever: Depress the brake pedals, place the main gear shift lever its neutral position, and pull the gear-locked parking brake lever to the parking position. 1. Make sure both the parking brake and the gear- locked parking brake are set. NOTE : The parking brake warning indicator on the Easy Checker will turn on when a parking brake is set. M5091,M5111 43