Lesco 708686, Руководство оператора, Страница: 6 / 16

6
LESCO
the turnbuckle at the top of the long control rod on
the side of the mower which seemed to creep must
be adjusted. Loosen the top and bottom nut on the
turnbuckle and adjust until the drive wheel stops
moving. Then retighten the top nuts.
7. The short traction/steering control rods which run
down from the traction/steering levers on each side
of the handle assembly should initially be adjusted
so that when the ground speed control levers are in
neutral and the traction/steering levers are in the
neutral lock position, the mower stands still with
the engine running. If the mower starts to creep
forward or to the rear in this situation, then the rod
end bearing at the bottom of the short control rod
on the side of the mower which seemed to creep
must be adjusted. Remove the hairpin holding the
long control rod in place in the rod end bearing,
remove the flat washer and pull the long control rod
from the rod end bearing. Loosen the lock nut and
adjust the rod end bearing ½ turn clockwise if the
creep was forward or ½ turn counter-clockwise if
the creep was to the rear. Tighten the lock nut,
replace the long control rod in the rod end bearing,
replace the flat washer and the hairpin.
8. Adjusting the cutting height: The mower is shipped
with the cutting height set at 3 inches
±1/4 inch depending on the air pressure in the
tires. To change the cutting height, blade spacers
and/or caster spacers must be moved according to
the table on page 6.
9. Lubricate all fittings listed in the maintenance
section.
C. Break-ln and Operation.
1. Make certain you thoroughly understand all of the
safety precautions before you attempt to operate
this machine.
2. Check the engine oil level. Fill to the proper level
with 10W40 or 10W30 engine oil rated for service SE or SF.
3. Check the hydraulic oil level. Remove the fill cap
and make sure the oil level is up to the bottom of
the strainer screen. Leave this air space for
expansion. If the oil level is low, fill with a good
grade of SAE 20W50 engine oil.
3. Move the mower outdoors. Check the engine
gasoline level. When filling the tank, stop when the
gasoline reaches one inch from the top. This space
must be left for expansion. Use fresh, clean,
unleaded, regular gasoline.
4. Move the mower to a “test area” where you can
operate the mower for about half an hour without
being disturbed.
5. To start the engine:
a.Move the ground speed control levers back to
the neutral position.
b.Disengage the blade clutch.
c.Place the neutral latch levers in the neutral lock
position.
d.Connect the spark plug wire.
e.Open the fuel shutoff valve.
f. Move the throttle lever to the “Choke” position.
g.Put the key in the ignition switch and turn the
switch to “Start”. (Do not hold the key in the
start position for more than 10 seconds or you
may damage the starter.)
h.Set the throttle at 50% of full engine RPM and
allow the engine to warm up. Then, adjust the
throttle to 75% of full engine RPM.
6. After the engine has warmed up, shut off the
ignition and check the operation of the safety
switches. Make certain that the engine will not
start unless the ground speed control levers are in
neutral and the blade clutch is disengaged. If the
engine will start with either of the ground speed
control levers in any position other than neutral,
immediately shut off the engine and replace the
neutral safety switch operated by that lever under
the control panel. If the engine will start with the
blade clutch engaged, immediately shut off the
engine and adjust or replace, if necessary, the
blade safety switch mounted on the engine deck.
Start the engine and hold the left operator presence
lever down against the left handle and move the
left ground speed control lever out of neutral. Now
take your hand off the operator presence lever and
the engine should die. If it does not, immediately
shut off the engine and adjust or replace, if neces-
sary, the operator presence switch under the
control panel. Repeat this procedure moving the
right ground speed control lever out of neutral. If
the engine does not die, immediately shut off the
engine and adjust or replace, if necessary, the
operator presence switch under the control panel.
Move both ground speed control levers into neutral,
restart the engine, hold the left operator presence
control down against the left handle and engage
the blade clutch. Now take your hand off of the
operator presence lever and the engine should die.
If it does not, immediately shut off the engine and
adjust or replace, if necessary, the operator
presence switch under the control panel. Disen-
gage the blade clutch.
7. Restart the engine.
8. Push the blade clutch lever forward until it engages
and the cutter blades start rotating.
9. Move the ground speed contol levers forward to
about one third of full speed.
OPERATING INSTRUCTIONS
CAUTION
Set the ground speed control levers at no
more than one third full speed until you are
fully familiar with the operation of the mower.