Cleaning The Spark Arrestor - Serial Number Xxxxxx0612 And Earlier - Westinghouse WH4500 Owner's Manual

MAINTENANCE
7. Inspect the spark plug for:
Cracked or chipped insulator
Excessive wear
Spark plug gap (the acceptable limit of 0.024 –
0.032 in. [0.60 – 0.80 mm]) (see Figure 41).
If the spark plug fails any one of the conditions listed
above, replace the plug with a Champion RN9YC
plug or equivalent.
NOTICE
Only use the recommended spark plug (Champion
RN9YC or equivalent). Using a non-recommended
spark plug could result in damage to the engine.
Figure 41 – Spark Plug Gap Requirements
8. Install the spark plug by carefully following the steps
outlined below:
a - Carefully insert the spark plug back into the
cylinder head. Hand-thread the spark plug until
it bottoms out.
b - Using the 13/16" spark plug socket wrench
provided, turn the spark plug to ensure it is fully
seated.
c - Replace the spark plug boot, making sure the
boot fully engages the spark plug's tip.
Recommended Spark Plug Replacement:
AutoLite
Champion
Bosch
Torch
34
63
RN9YC
WR7DS
F6RTC
CLEANING THE SPARK
ARRESTOR – SERIAL NUMBER
XXXXXX0612 AND EARLIER
Check and clean the spark arrestor after every 100
hours of use or 6 months.
1. Stop the generator and let it cool for several minutes
if running.
2. Move the generator to a fl at, level surface.
3. Remove the spark arrestor muffl er shroud by
removing the four bolts. Place the bolts in a secure
place for easy retrieval.
4. Using a fl athead screwdriver, loosen the spark
arrestor band clamp (see Figure 42).
5. Slide the spark arrestor band clamp off the spark
arrestor screen.
6. Pull the spark arrestor screen off the muffl er exhaust
pipe.
Figure 42 – Spark Arrestor Assembly
1 - Muffl er Shroud
Bolts (4 used)
2 - Muffl er Shroud
7. Using a wire brush, remove any dirt and debris that
may have collected on the spark arrestor screen.
8. If the spark arrestor screen shows signs of wear
(rips, tears or large openings in the screen), replace
the spark arrestor screen.
9. Install the spark arrestor components in the
following order:
a - Place spark arrestor screen over the muffl er
exhaust pipe. Push on the screen until it fully
bottoms out.
b - Place the spark arrestor band clamp over the
screen and tighten with a fl athead screwdriver.
c - Install the spark arrestor muffl er shroud.
3 - Spark Arrestor
Band Clamp
4 - Spark Arrestor
Screen