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GB - 18
REPLACE OIL FILTER (911526)
Replace oil filter every 100 hours of use or
every season.
1. Change engine oil.
2. Clean around filter.
3. Turn filter counterclockwise to remove
(Figure 10).
4. Apply a thin coat of oil onto seal of new
filter.
5. Install new filter and hand tighten
securely.
Swivel Wheels (911101, 330, 525)
See Figure 11.
Use Sten Mix Hi-Temp Grease or equivalent
on the lube fittings. Order P/N: 00036800 - 3
pack of 3 oz. cartridges.
CHECK SPARK PLUG
Spark plug should be replaced every 100
hours of operation or each year.
NOTE: Loose spark plug wire terminals can
cause sparking. Replace terminal if
damaged.
CHECK ENGINE COOLING
To prevent overheating, air must circulate
freely around the cooling fins, cylinder head
and block.
Every 100 hours of operation or yearly (more
often if conditions require) remove blower
housing and clean cooling fins. See engine
manual for instructions.
CHECK MUFFLER
Check muffler for debris, cracks, wear, or
other damage.
SERVICE POSITION
Put unit into service position for easy access
to underneath the deck.
Figure 10
WARNING: HOT SURFACES can
cause death or serious injury. DO
NOT TOUCH parts which are hot
from operation. ALWAYS allow
parts to cool.
CAUTION: Replace worn-out
mufflers immediately. Continued
use could result in fire or explosion.
Lube Fitting
Figure 11
OM1282
SERVICE AND ADJUSTMENTS
CAUTION: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
CAUTION: Avoid fuel spills. Follow
steps below to help prevent fuel
spills. If fuel leaks into air cleaner,
replace air cleaner. ALWAYS clean
up any spilled fuel.