Deck, Caution, Engine oil – Bolens 112-170-300 User Manual
Page 10: Air cleaner, Clean air cleaner, Figure 16, Spark plug, Clean
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When replacing the blade, be sure to install the
blade with the side of the blade marked “Bottom”
(or with part number) facing the ground when the
mower is in the operating position. Make certain
key is in place on the crankshaft.
Blade Mounting Torque
3/8" Dia. Bolt 375 in. lb. min., 450 in. lb. max.
5/16" Dia. Bolt 150 in. lb. min., 250 in. lb. max.
To insure safe operation of your unit, ALL nuts
and bolts must be checked periodically for correct
tightness.
DECK
The underside of mower deck should be cleaned
after each period of use as grass clippings, leaves,
dirt and other matter will accumulate. This ac
cumulation of grass clippings, etc., is undesirable
as it will invite rust and corrosion and may cause
an uneven discharge of grass clippings at the next
cutting.
The deck may be cleaned by tilting the mower for
ward or on its side and scraping clean with a
suitable tool or by washing with a stream of water
from a garden hose.
A
CAUTION
Do not direct the stream of water at
a hot engine as damage to the
engine may result.
ENGINE OIL
Check oil level before starting engine and after
every 5 hours of operation. Add oil as necessary to
keep level full to point of overflowing or to full
mark on dipstick. Before removing oil cap, clean
area around cap to prevent dirt from entering oil
sump. Engine should be in a level position when
checking oil.
Change
oil
after
first
5
hours
of
operation.
Thereafter change every 25 hours. Change oil
while engine is warm. Oil may be drained thru
drain on bottom of engine. To drain completely,
always place engine level when draining thru the
bottom. Oil capacity 1-1/4 pints.
AIR CLEANER
Clean air cleaner and re-oil element every 25 hours
under normal conditions. Clean every few hours
under extremely dusty conditions. Poor engine
performance and flooding usually Indicates that
the air cleaner should be serviced. See figure 16.
To service air cleaner:
1. Remove screw.
2. Remove air cleaner carefully to prevent dirt
from entering carburetor.
3. Take air cleaner apart and clean.
a. WASH foam element in kerosene or a liq
uid detergent and water to remove dirt.
DRY foam completely by wrapping and
squeezing in a cloth.
SOAK foam with engine oil. Squeeze to
distribute and remove excess oil.
4. Reassemble parts and fasten to carburetor.
b.
c.
Assemble
One of These
Low Points
Towards
Narrow
Edge of
^Element
""^^Body
Assemble Element So
Lip Extends Over Edge,-^:
of Air Cleaner Body-
Lip Will Form
Protective Seal
When Cover Is
Assembled
CLEAN AIR CLEANER
FIGURE 16.
SPARK PLUG
The spark plug should be cleaned (see figure 17)
and the gap reset to a 0.030-inch clearance once a
season (see figure 18). Spark plug replacement is
recommended
at
the
start
of
each
mowing
season; check engine manual for correct plug
type.
Clean
Electrode
FIGURE 17.
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