WP13 Diesel Engine Series Operating Manual
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Check whether the sound is normal.
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Check whether the speed and vibration is normal.
5.2 Maintenance Contents for Different Levels of Maintenance
In addition to completion of the daily maintenance, the following contents should also be added:
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Replace the diesel engine oil.
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Unscrew the oil drain plug at the bottom of the oil sump, drain the oil and then screw the drain
plug as shown in Figure 5-9.
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Open the oil filler cap, (see Figure 5-8) add more oil from the oil filler, observe the oil dipstick
scale, and then mount the oil filler cap until the requirement has been satisfied.
Figure 5-8 Figure 5-9
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Replace the oil filter or filter element, as shown in Figure 5-10:
To replace the oil filter, you should follow the steps below:
A. Remove the old oil filter;
B. Fill the new filter with clean oil;
C. Coat the rubber pad with engine oil before installing the new oil filter;
D. When the rubber pad contacts the base, then tighten at 3/4 to 1 circle to have it firmly sealed;
E. Start the diesel engine to check whether there is oil leakage.
Figure 5-10
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Check and adjust the valve clearance.
Check and adjust the clearances of intake valve and exhaust valve according to the following steps:
A. When the diesel engine is in its cold state, turn the crankshaft forward (in the direction of the
diesel engine running) to TDC of Cylinder 1 and Cylinder 6. At this moment, the groove on the
flywheel is aligned to the pointer on the observation hole cover plate, as shown in Figure 5-11;
Oil filter
Oil filler
Oil drain plug
