Ariens 931015 S-18 - Manual (Page 10)

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CAUTION: Storage batteries give off highly in­
flammable hydrogen gas. Do not allow sparks or
flame near battery. Do not lay tools across battery
terminals which may cause a spark resulting in an
explosion.
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The engine is air cooled, Air must circulate freely around
the engine from the air intake screen shown in Figure 16 and
over the cooling fins in the cylinder head and block to prevent
overheating.
Every 50 hours of operation or quarterly check the air
intake screen. Wipe away any dirt or debris which has col­
lected on the screen. Remove the shroud. Figure 16 and in­
spect the cooling fins. Remove any dirt, or chaff accumulations
from the cooling fins with compressed air. Replace shroud.
TRANSMISSION COOLING
Dirt and grime accumulations on transmission cooling fins
can cause overheating. Check and clean the cooling fins
every 50 hours of operation or quarterly.
Be sure transmission cooling fan is in good condition.
TIRE PRESSURES
Check tire pressure at least once each month. Inflate
tires to pressures shown in the chart below. Use a low pressure
tire gauge for accurate readings.
TIRE SIZE LOADING
Front
16x6.50x8
Light Medium Heavy
(Lawn Work)
8 p.s.i.
(Sno - Thro)
12 p.si. 16 p.s.i.
Rear
23 x 10.50x 12
(Lawn Work)
6 p.s.i.
(Rotary - Tiller
8 p.s.i.
1
10 p.s.i.
Keep tires properly inflated at all times. Over-inflation
will cause operator discomfort. Under-inflation will cause
short tire life. Always see that the tire valve caps are in place
and securely tightened to prevent air loss.
FUEL PUMP AND FILTER
Maintain the battery at full charge during storage and
during winter rnonths to prevent freezing. When water is
added during freezing weather, run the engine at least one hour
to thoroughly mix the water and electrolyte.
When installing the battery, make certain that the ground
cable is connected to the negative (—) terminal on the battery,
see Figuréis. Be sure the battery cable is connected to the
positive (-H) terminal.
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The engine may fail to start due to lack of fuel at the
carburetor if the fuel pump shown in Figure 17 loses its
prime. This can occur when the fuel tank is run dry or may be
due to evaporation of fuel from the system after a storage
period. I n either case, make certain there is fresh fuel in the
tank and operate the priming lever on the fuel pump several
times to start fuel flow.
WARNING: Reversed batteiy cables or reversed
cables from a battery charger or booster battery can
cause demage to the regulator rectifier (Figure 17).
Always disconnect plug from the regulator rectifier
before using a charger, booster battery or when
electric welding is done on the tractor:
If a faulty fuel pump is suspected, see your Ariens dealer.
When dirt or other foreign material is allowed to enter the
fuel tank it will collect in the fuel filter shown in Figure 17.
This will eventually cause fuel stoppage. The filter can be dis­
assembled and cleaned.
FUEL FILTER IS
LOCATED UNDER
FLOOR PLATE REGULATOR
RECTIFIER
E SCREEN
FIGURE 16
PRIMING LEVER
IGNITION BREAKER POINT COVER FIGURE 17
LUBRICATION AND PERIODIC SERVICE SCHEDULE
Hours of Operation/
Time Interval
Service Required
Every 5 Hours or Daily Check Engine Crankcase Oil
Service Engine Air Filter
Every 25 Hours or Monthly Service Battery
Check Tire Pressures
Check Transmission Oil Level
Change Engine Oil
Clean Park Lock Assembly
Oil Hydrostatic Control Linkage
Oil Park Lock Control Cable
Every 50 Hours or Quarterly Grease Steering System
Clean Engine Cooling Fins
Clean Transmission Cooling Fins
Check Spark Plug
Every 250 Hours or Yearly Clean Fuel Filter •
NOTE: When tractor is new, change the engine oil and the
transmission oil filter after the first five hours of operation.
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