ryan 544907, Technical Manual, Page: 20 / 90

7 MAINTENANCE
GB-20
7.3 ENGINE OIL ______________________________________________________________
Check the engine oil at the start of each day, before starting
the engine. If the oil level is low, remove oil filler cap and add
oil as required.
Perform initial oil change after the first 5 hours of operation.
Change oil every 25 hours thereafter.
See the engine manufacturer’s Owners’s Manual for
detailed service information.
After adding or changing oil, start and run engine at idle with
all drives disengaged for 30 seconds. Shut engine off. Wait
30 seconds and check oil level. Add oil to bring up to FULL
mark on dipstick.
Use only engine oils with API classification SG, SH or SJ.
Figure 7A
7.4 ENGINE AIR FILTER _______________________________________________________
1. Remove and service the foam pre-cleaner every 25
hours. Replace if dirty or damaged.
To service pre-cleaner, wash in a liquid detergent and
warm water. Rinse Thoroughly and squeeze dry in a
clean cloth. Saturate in clean engine oil and squeeze
out excess oil in a clean, absorbent cloth.
2. Replace the paper air cleaner element every 100
hours, more often when operating in dusty conditions.
Note: Always replace the paper element. Do not wash
or use pressurized air to clean cartridge.
See the engine manufacturer’s Owners’s Manual for
detailed service information.
7.5 FUEL ____________________________________________________________________
Handle fuel with care - it is highly flammable. Use an
approved container, the spout must fit inside the fuel filler
neck. Avoid using cans and funnels to transfer fuel.
• Fill the fuel tank to within 1 in. (25 mm) of the bottom of
the filler neck.
• Store fuel according to local, state or federal ordinances
and recommendations from your fuel supplier.
• Never overfill fuel tank.
Gas Engine:
• Use clean, fresh, regular grade, unleaded gasoline
minimum 85 Octane.
• Do not use hi-test gasoline or an oil-gasoline mixture.
When using blended fuel, do not use a blend with more
than 10% ethanol. Under no circumstances should you
use a blend with methanol.
Above 32° F (0° C) SAE 30W
Below 32° F (0° C) SAE 5W20 or SAE 5W30
Operating
Range
FULL
mark
WARNING
Never remove the fuel cap from the fuel tank, or add fuel,
when the engine is running or while the engine is hot.
Do not smoke when handling fuel. Never fill or drain the
fuel tank indoors.
Do not spill fuel and clean spilled fuel immediately.
Never handle or store fuel containers near an open flame
or any device that may create sparks and ignite the fuel
or fuel vapors.
Be sure to reinstall and tighten fuel cap securely.
!