MTD BCR4 - Manual (Page 17)

AIR FILTER MAINTENANCE
WARNING: To avoid serious personal injury,
always turn off your trimmer and allow it to
cool before you clean or maintain it.
Clean and re-oil the air filter every 10 hours of
operation. It is an important item to maintain. Failure
to maintain the air filter will
VOID the warranty.
1. Remove the air filter cover by pulling up the two
tabs on the bottom back of the cover, then pull out
and up. See Figure 20.
2. Remove the air filter.
3. Wash the filter in detergent and water. Rinse the
filter thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly
coat the filter. See Figure 21.
5. Squeeze the filter to spread and remove excess oil.
See Figure 21.
MAINTENANCE & REPAIR INSTRUCTIONS
17
6. Reinstall the filter. See Figure 22.
Air Filter
Choke
Lever
Air Filter Cover
Tab
Slots
Back Plate
FIGURE 20
FIGURE 21
FIGURE 22
Muffler
Spark Arrestor
SPARK ARRESTOR MAINTENANCE
1. Remove the muffler cover. Refer to the Rocker
Arm section.
2. Using a pair of pliers, remove the clip wrapped
tight around the spark arrestor screen. See
Figure 23.
3. Remove the spark arrestor screen from the
muffler.
4. Clean the spark arrestor screen with a wire brush,
or replace it.
5. Reinstall the spark arrestor screen, clip, muffler
cover and screws.
FIGURE 23
Clip