Cub Cadet THE TANK S7237 - Manual (Page 17)

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g. To replace the blade reverse the above process
and tighten nut to 100-120 lb ft.
WARNING:
Never mow with dull blades! Blades that are bent
should be replaced! The cutting blades are sharp and
can cause severe injury. Wrap the cutting surface of
the blade with a rag to avoid injury. A dull blade
requires more horsepower than one that is sharp.
3. Sharpening a Blade.
a. Set the parking brake.
b. Clean any debris from the blades. Keep blades
sharp and free of build up at all times.
c. Sharpen blades evenly at the original 30° angle to
maintain balanced cutting blades. Do not sharpen
the underside of the blades. Use a electric blade
sharpener, a conventional electric grinder or a
hand file to sharpen the blades.
d. Replace any blade with severe nicks or dents that
cannot be removed by filing.
e. Check the balance of the blade after sharpening
by placing it on a blade balancer. Do not use un-
balanced blades.
f. If the blade dips on one end, file stock off of the
cutting surface on that end.
Note:
Blades that cannot be easily balanced—
REPLACE.
4. Changing the Blade Spindle Drive Belts:
a. Set the parking brake. Remove ignition key and
both spark plug caps.
b. Unscrew the wing nuts from the deck covers and
remove both covers.
c. Using a 1/2" socket breaker bar or socket rachet
insert the male end into the 1/2" opening in the
lower idler arm assembly and pull the idler arm
clockwise. While holding the idler arm back,
loosen the blade drive belt from the pulley and
slide the belt away from the pulley.
d. Remove tension of the PTO belt by moving the
belt tensioning rod. Loosen the belt retaining
bolt.
e. Pull the tensioner pulley away from the belt and
remove the PTO belt then remove the blade drive
belt.
f. Reverse the process to install the belt.
Note:
When replacing belts do not overtighten.
Adjust the idler pulley so that a ten-pound pull with a
spring scale between two pulleys deflects the belt
about 1/2".
5. Changing the Spindle Assembly
a. Jack up the front of the mowing deck about one
foot and block it in that position.
b. Make sure the blade clutch is disengaged.
c. Remove the deck cover.
d. Remove the drive belts. (See 4. Changing Blade
Drive Belts.)
e. Remove the cutter blade. (See 2. Changing a
Blade.)
f. Using a wrench or socket rachet remove four hex
nuts, and the four hex head cap screws. Remove
the spindle assembly.
B.Hydraulic Oil
WARNING:
Never overfill the hydraulic units. Damage can occur if
the oil level is not within the proper operating range.
Note:
W hen adding hydraulic oil, do so in small
quantities and recheck the oil level before adding more.
It is important that you do not overfill the reservoir to
allow for fluid expansion.
1. Adding Hydraulic Oil (use Rimula SAE15W40)
a. Place the Mower on a level surface and engage
the parking brake.
b. Stop the engine and remove the key from the
ignition switch.
c. Clean the area around the Hydraulic Oil fill neck.
d. Remove the hydraulic fill cap and check the
level. The correct level is a 1/4” below the oil
tank fill neck.
e. Pour hydraulic oil into the reservoir a 1/4” below
the oil tank fill neck and 1.5 ounces of Ornite
additive, if necessary.
2. Draining Hydraulic Oil
Used hydraulic oil must be disposed of properly. Do not pour it
down a drain or sewer, or dump it on open land, this creates an
environmental hazard. Please be aware of the environment when
disposing of used oil.
a. Place the Mower on a level surface and engage
the parking brake.
b. Stop the engine and remove the key from the igni-
tion switch.
c. Remove the mower deck. See section on Mower
Deck.
Hydraulic Tank
Figure. 11