61/65/70/75 Series Horizontal Shaft Engines
36
Chore engines
Air filters
Generally air filters come in two different types, a
pleated-paper element or foam. A combination of the two
are used on the MTD engine. See Figure 3.9.
• Air filters used on the MTD engine are designed
to prevent particles larger than 3-5 micron from
passing through into the engine.
• The filter should be checked on a regular basis
possibly several times in a season.
NOTE: Never use compressed air on a paper air fil-
ter. Compressed air will remove the tiny
fibers that are used to catch the dirt in the
air. Without these fibers the filter is useless.
NOTE: Refer to Chapter 1: Introduction for the
maintenance interval and cleaning instruc-
tions for the air filter.
To service the air filter:
1. Press in on the tab in the air filter cover. See Figure
3.10.
2. Swing open the cover and lift it off of the air filter
base.
3. Lift the air filter out of the base.
4. Replace the air filter or clean it, following the steps
described in Chapter 1: Introduction.
NOTE: When installing the air filter, make sure the
tabs on the filter fit in between the pins in the air fil-
ter base. See Figure 3.11.
5. Re-assemble by following the above steps in
reverse order.
Figure 3.9
Paper-pleated element
Foam pre-filter
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