Yard Machines 690 Thru 699 - Manual (Page 20)

20
Engine
• Refer to the separate engine manual for engine
maintenance instructions.
• Service air cleaner every 10 hours under normal
conditions. Clean every few hours under extremely
dusty conditions. To service the air cleaner, refer to
the separate engine manual packed with your unit.
• The spark plug(s) should be cleaned and the gap
reset once a season. Spark plug replacement is
recommended at the start of each mowing season;
check engine manual for correct plug type and gap
specifications.
• Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and
follow instructions carefully.
Oil Drain Sleeve (If equipped)
• Your lawn tractor may have a plastic oil drain
sleeve packed with the loose parts for your
convenience in draining oil from the crankcase. To
drain the oil, snap small end of oil drain sleeve onto
oil sump. See Figure 23 . Remove drain plug and
drain oil into a suitable container.
Figure 23
Oil Drain Valve (If equipped)
• Your lawn tractor may have a valve installed on the
engine for draining oil from the crankcase. See
Figure 24 .To drain the oil, insert the 12" hose
(shipped loose with your unit) over the end of the
valve. Place the other end in a suitable container.
Push in black cap, rotate counter-clockwise and
pull valve open. When oil is completely drained,
push top of valve in and rotate clockwise to close.
Figure 24
Tire Pressure
Recommended operating tire pressure is
approximately 10 p.s.i. Maximum tire pressure under
any circumstance is 30 p.s.i. Equal tire pressure should
be maintained on all tires.
• When installing a tire to the rim, be certain rim is
clean and free of rust. Lubricate both the tire and
rim generously. Never inflate to over 30 p.s.i. to
seat beads.
WARNING: Excessive pressure (over 30
p.s.i.) when seating beads may cause tire/
rim assembly to burst with force sufficient
to cause serious injury.
SECTION 8: OFF-SEASON STORAGE
If the tractor will remain unused for more than 30 days,
prepare it for storage as follows.
• Clean the engine and the entire unit thoroughly.
• Lubricate all pivot and linkage points. Wipe the
tractor with an oiled rag to protect the surfaces.
• Refer to the engine manual for correct engine
storage instructions. The engine must be
completely drained of fuel to prevent gum deposits
from forming on essential carburetor parts, fuel
lines and fuel tanks.
• If your tractor is equipped with the B type battery,
charge it fully. The battery loses some of its charge
each day when the unit is not used. NEVER store
battery without a full charge. Recharge battery
before returning to service or every two months,
whichever occurs first.
• When storing unit for extended periods, disconnect
battery cables. Removing battery from unit is
recommended.
• Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer.
NOTE: When storing any type of power equipment in
an unventilated or metal storage shed, care should be
taken to rustproof the equipment. Using a light oil or
silicone, coat the equipment, especially any chains,
springs, bearings and cables.
Oil
Sump
Oil Drain
Sleeve
Oil Drain
Valve
12" Drain
Hose