- 25 -
4. MAINTENANCE
4.2 MAINTENANCE
4.2.1 Engine
All engines operate at 3400 RPM.
Thoroughly service engine at least annually.
Follow manufacturers recommendations
including: clean carbon from cylinder head,
check intake and exhaust valves, clean and
adjust carburetor, check ignition cable and daily
check for damaged parts and replace. Check
for loose fasteners - tighten as per torque chart.
4.2.2 Engine Oil
Check engine oil level daily. Consult engine
manual included with this unit for specific
maintenance instructions.
4.2.3 Air Filter
Remove foam pre-cleaner from air filter daily.
Wash the foam in liquid detergent and water.
Squeeze dry between towels. Oil with one
ounce of engine oil and squeeze to distribute oil
evenly. Units equipped with Wisconsin Robin
engines, use kerosene in place of oil and
squeeze excess from foam. Keeping the filter
clean prolongs the engine life and decreases
fuel consumption.
4.2.4 Eccentric Oil
Check eccentric oil monthly. Change oil every
300 hours. Check by removing oil plug at rear
of machine. Use a pencil, screwdriver, or some
other convenient dip stick, and insert to the bend
line on the bottom of the plate. The oil level
should be 2" to 2-1/4", (51 mm to 57 mm) up
the dip stick, see figure 1. If oil is required, use
SAE 30 oil. DO NOT OVERFILL.
On the S-20, check oil by removing oil plug at
side of eccentric house. Oil should be leveled
with plug hole, see figure 2.
4.2.4.1 Oil Capacity
S-20 1.28 quarts (1.21 liters)
S-28 2.75 quarts (2.60 liters)
S-38 2.25 quarts (2.13 liters)
S-52 2.25 quarts (2.13 liters)
S-66 2.00 quarts (1.89 liters)
4.3 HARDWARE
Check daily for tightness. If required, tighten
using torque charts in Exploded Views with Parts
Section.
4.4 BELT TENSION
Check belt tension weekly.
4.5 BELT ADJUSTMENT
On the S-20A, the water tank and water tank
bracket must be removed before adjusting belt.
Belt is adjusted by loosening four engine bolts and
adjusting the engine pusher bolt on front of the
engine deck, until desired tension is obtained - then
Figure 1
Figure 2
To Next Page
Loading...
