Clean/Replace Air Filter; Fuel Filter Replacement; Clean/Gap/Replace Spark Plug - Generac Power Systems GP7500E Series Owner's Manual

4.6 — Clean/Replace Air Filter
The engine will not run properly and may be damaged if
using a dirty air filter. Clean the air filter every 50 hours or
annually Figure 4-3. Clean or replace more often if oper-
ating under dusty conditions.
Remove air filter cover retaining screw (A) and
1.
cover (B).
Wash in soapy water. Squeeze filter dry in clean
2.
cloth (DO NOT TWIST).
Clean air filter cover before re-installing it.
3.
Tighten air filter cover screw securely.
4.
NOTE: To order a new air filter, please call 1-888-436-
3722.
B
A
Figure 4-3. Clean/Replace Air Filter
4.7 — Fuel Filter Replacement
The fuel filter replacement should take place every 500
hours of operation and/or annually (Figure 4-4.).
Turn the fuel switch and the electric start switch to
1.
the OFF position. Allow the engine to cool.
Using a pliers, squeeze the clamp and slide the
2.
clamp away from the fuel filter fittings and remove
the hose from fuel valve fitting. Clamps can be
reused.
Remove the short hose from the fuel filter. Then
3.
remove the filter from the longer hose.
Place the new filter on the longer hose. The larger
4.
end of the filter (with the red dot) must face towards
the fuel valve. Position the clamp on the filter fit-
ting.
Place the short length of hose on the filter. Then
5.
the other end on the fuel valve.
Place both clamps back onto the fittings of the filter
6.
and fuel valve.
Owner's Manual for Portable Generator
Figure 4-4. Fuel Filter Location
4.8 — Clean/Gap/Replace Spark Plug
Clean, gap or replace spark plug as follows:
+
Never disconnect a spark plug with the
engine running. Doing so will result in an
electric shock that could result in death or
serious injury.
Remove spark plug cable from spark plug.
1.
NOTE: When disconnecting spark plug cable from
spark plug terminal, always grasp and pull on the
000379
plastic boot at the terminal end of the cable. Pulling
on cable portion can result in parts damage.
Thoroughly clean area around spark plug.
2.
Remove spark plug from cylinder head using a 5/8
3.
inch spark plug socket.
Check condition of threads in cylinder head and on
4.
plug. If necessary, soften deposits with penetrating
oil and clean out with a thread chaser.
Set spark plug gap. See Figure 4-5.
5.
NOTE: For spark plug type and gap, see Subsection
4.2.2— Engine Specifications.
Install spark plug into cylinder head.
6.
Figure 4-5. Check Spark Plug Gap
Finger tighten spark plug, and then using a spark
7.
plug socket, tighten to 15 ft-lbs (20 N-m).
Install spark plug cable onto spark plug.
8.
Maintenance
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