Gravely 992221 - Page 36

GB - 36
The fuel filter cannot be disassembled. If the
fuel filter becomes clogged, replace it with a
new one.
1. Park the machine safely in a well-
ventilated area.
2. Allow to cool.
3. Compress hose with clamp between
tank and filter. Use care not to damage
or puncture hose.
4. Disconnect the hose clamps (1) from the
fuel filter (see figure 25).
5. Slide the fuel line off of both ends of the
fuel filter (2).
6. Install the new fuel filter paying close
attention to the flow direction (3) noted
on the fuel filter.
7. Remove clamp.
The fuel pump can not be disassembled. If
the fuel pump fails, replace it with a new one.
SPARK PLUG SERVICE
Clean or replace the spark plug and reset the
gap every 100 hours of operation.
1. Disconnect the spark plug wire lead and
remove the spark plug.
2. Clean the electrodes by scraping with a
wire brush to remove carbon deposits.
3. Inspect for cracked porcelain or other
wear and damage. If any wear or
damage is evident, replace with a new
spark plug.
4. Check the spark plug gap and reset if
necessary. The correct gap should be
.030 inches (.75 mm). To change the
gap, bend only the side electrode using
a spark plug tool.
5. Install and tighten the spark plug to 22
N·m (16 ft. lbs.). Reconnect the spark
plug wire lead.
See the engine operator’s manual for the
recommended spark plug.
COOLING SYSTEM CLEANING
Before each use check to make sure the air
intake screen is free from grass and debris
and clean if necessary.
Every 100 hours of operation, check and
clean the cooling fins and inside the engine
shrouds to remove grass, chaff or dirt
clogging the cooling system and causing
overheating.
WARNING: Hot engine
components can cause severe
burns. Stop engine and allow it
to cool before checking the
spark plug.
Figure 25
OE3336
Hose Clamps
Fuel Filter
Figure 26
Spark Plug Wire
OE3341
1
2
Figure 27
.030 in.
(.75mm)
1. Center Electrode Insulator
2. Side Electrode
3. Air Gap (Not to Scale)