Chapter 3: Air Intake System; Air Filter - MTD P90 series Shop Manual

Air filter

Paper-pleated element
Figure 3.1
Figure 3.2

CHAPTER 3: AIR INTAKE SYSTEM

pleated-paper element or foam. A combination of the two
are used on the MTD engine. See Figure 3.1.
NOTE: Never use compressed air on a paper air filter.
Foam pre-filter
NOTE: Refer to Chapter 1: Introduction for the mainte-
To remove/replace the air filter:
Air filter cover
1.
2.
NOTE: The wing nuts are part of the air filter cover and do
Generally air filters come in two different types, a
• Air filters used on the MTD engine are designed to
prevent particles larger than 3-5 micron from pass-
ing through into the engine.
• The filter should be checked on a regular basis
possibly several times in a season.
Compressed air will remove the tiny fibers that are
used to catch the dirt in the air. Without these
fibers the filter is useless.
nance interval and cleaning instructions for the air
filter.
Wipe down the air filter housing to prevent any debris
from getting into the engine.
Un-screw the two wing nuts. See Figure 3.2.
not come off.
A I S
IR NTAKE YSTEM
27