Onan 200 DFP - Air Cleaner; AC Generator.22

AIR CLEANER
Check the air cleaner and service the filter element at
the intervals recommended in the maintenance table.
The air cleaner contains a paper cartridge filter element
which can be cleaned and reused or discarded and
replaced.
To Service
1. Loosen the eight attaching bolts and lift off the air
cleaner head (see Figure 12).
2. Remove the air filter element from the filter housing.
3. To clean, blow low pressure compressed air (30
psi/207 kPa) through the element from the clean
side. Hold the nozzle at least 1 inch (25 mm) away to
avoid damaging the element.
4. Soak the filter for at least 15 minutes in water and
Donaldsons D1400 solvent to remove soot and car¬
bon as well as dirt.
5. Rinse with clean water (low pressure) and allow to
air dry. Do not blow dry with compressed air. Rein¬
stall when the filter element is dry. Replace the filter
after several cleanings to avoid restricting the
airflow.
A PAl itiom! Filters should be handled with care to
n u r vj preven ( damage. If the filter does
become damaged, install recommended replacement
part.
FIGURE 12. AIR CLEANER
AC GENERATOR
General
These generators require very little servicing. Periodic
inspections, to coincide with engine oil changes, will
ensure good performance.
Remove the grill section and inspect the rotating recti¬
fier assembly to make sure the diodes (see Figure 13)
are free of dust, dirt, and grease. Excessive foreign
matter on these diodes and heat sinks will cause the
diodes to overheat and will result in their failure. Blow
out the assembly periodically with filtered low pressure
air.
Check generator voltage. It may be necessary to make a
slight readjustment to obtain the preferred voltage at
average load. Refer to Installation manual for adjust¬
ment procedure.
Generator Bearing
Have the bearing inspected for wear every 1000 hours
by an Onan Distributor. If the unit is used for “prime
power,” have the bearing replaced every 10,000 hours
or after two years. If the unit is used for “standby power,”
have the bearing replaced every five years.
ES-1302
FIGURE 13. RECTIFIER ASSEMBLY
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