Break-In And Operation - Cub Cadet Commercial 55AI4HPR750 Operator's And Service Manual

C. BREAK-IN 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 straight 10W40 engine oil rated for service SE or SF.
3. Check the hydraulic oil level. Remove the fill cap and make sure the hydraulic oil level is up to the bottom of
the strainer screen. Leave this air space for expansion. If the hydraulic oil level is low, fill with a good grade of
SAE 20W50 engine oil.
4. 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.
5. Move the mower to a "test area" where you can operate the mower for about half an hour without being
disturbed.
6. 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 "ON".
h. To start the engine, grasp the starter grip and pull slowly until the starter engages. Then pull the
cord rapidly to overcome compression, prevent kickback and start the engine. Repeat if necessary
with the choke opened slightly. When the engine starts, slowly open the choke all the way.
i. 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.
7. After the engine has warmed up, shut off the ignition switch 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 necessary, 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.
Disengage the blade clutch.
8. Restart the engine. Push the blade clutch lever forward until it engages and the cutter blades start rotating.
9. Move the ground speed control levers forward to about one third of full speed.
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.
10. Squeeze both traction/steering levers with both hands and release the neutral latch levers from the neutral
lock position. NOTE: The neutral latch lever hardware needs to be snug so that the latch stays "on" or
"off".
11. Slowly release the traction/steering levers and the mower will move ahead in a straight line. To turn the
mower, squeeze the traction/steering lever on the side to which you want to turn.
12. To stop the mower's forward motion, squeeze both traction/steering levers until the mower stops and place
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