Servicing The Air Cleaner; Replacing The Spark Plug - Toro 04022 Operator's Manual

3. Push down on handle to tip mower and engine
backward, allowing all oil to run into drain pan.
4. Install drain plug and refill crankcase with the
specified oil; refer to Checking the Oil Level.

Servicing the Air Cleaner

Service Interval: Every 25 hours
Every 100 hours
1. Make sure wire is off spark plug.
2. Remove wing nuts securing air cleaner cover to air
cleaner and remove cover. Clean cover thoroughly
(Figure 22).
1. Air cleaner cover
3. If foam element is dirty, remove it from paper
element (Figure 23). Clean thoroughly.
1. Foam element
A. Wash foam element in a solution of liquid soap
and warm water. Squeeze to remove dirt, but do
not twist because the foam may tear.
B. Dry by wrapping in a clean rag. Squeeze rag and
foam element to dry, but do not twist because
the foam may tear.
Figure 22
Figure 23
2. Paper element
C. Saturate element with clean engine oil. Squeeze
element to remove excess oil and to distribute oil
thoroughly. An oil damp element is desirable.
4. Check condition of paper element. Clean by gently
tapping the filter or replace as required.
5. Install foam element, paper element, and air cleaner
cover.
Important: Do not operate the engine without
the air cleaner element because extreme engine
wear and damage will likely result.

Replacing the Spark Plug

Service Interval: Every 100 hours
Use an NGK BPR 5ES spark plug or equivalent. Correct
air gap is 0.028-0.032 inch.
1. Pull molded wire off spark plug (Figure 24).
1. Spark plug wire
2. Clean around spark plug and remove plug from
cylinder head.
Important: Replace a cracked, fouled, or dirty
spark plug. Do not sand blast, scrape, or clean
electrodes because engine damaged could result
from grit entering the cylinder.
3. Set air gap at 0.028-0.032 inch (Figure 25). Install
correctly gapped spark plug and tighten firmly to
17 ft.-lb (23 N-m).
21
Figure 24
Figure 25