Maintenance Instruction
70
4.9 Air Cleaner Instructions and Maintenance
In a dusty environment, inspect and clean the filter elements every 10 working hours.
Take out the filter element and clean it with a brush, discarding the dust in the rubber filter bag.
Turning the filter element, blow off the dust using compressed-air, with less than 500kPa.
Reinstall the filter element.
If the filter element cannot be cleaned or is worn out, it should be replaced.
IMPORTANT ISSUES:
Do not flush the filter element with oily water. Correct use and maintenance of the air
filter will determine the life of engine, so it must be kept clean. When working in the field, check and clean the oil
after each work day. When a reaper is used, move the location of the filter to a higher level, which will allow it to
work more effectively.
4.10 Fan Belt Tension Adjustment
Press the fan belt with your thumb and apply pressure of29.4-49.0N (6.1-11 lbs.). The deflection should be
around 15±3 mm. (0.6-0.7 inches). If deflection does not meet the requirements, the tension should be
adjusted as follows:
Loosen the lock nut on the generator adjusting bracket and pivot the generator out to increase the ten sion in the
fan belt. When finished, tighten the lock nut on the generator bracket.
4.11 Engine Oil Level Check, Oil and Oil Filter Replacement
Using the dipstick, check that the oil level is located between the upper and lower marks. If the oil level does not
reach the lower mark, open the oil fill port on the engine timing gear cover and add oil.
To change the engine oil, loosen and remove the oil drain plug on the lower part of oil pan and drain out the dirty oil
into a suitable container and dispose of properly. Reinstall the drain plug and refill with new oil.
4.12 Fuel Injection Pump Maintenance
The fuel injection pump has its own oil sump. Check the oil level in the fuel injection pump by using the dip stick on
the fuel injection pump. If the oil level is not between the two lines on the dip stick, add 30 weight oil to bring the oil
level into this range.