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Clean Deck & Check/Replace Mower Blades; Blade Removal; Balancing The Blade; Blade Installation - Craftsman ZTS 7500 Operator's Manual

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CLEAN
DECK &
CHECK / REPLACE
MOWER BLADES
Service Intervah 25 hours or as required.
WARNING
For your personal safety, do not handle the sharp
mower blades with bare hands. Careless or
improper handling of blades may result in serious
injury.
WARNING
For your personal safety, blade mounting
capscrews must each be installed with a
hex/spline washer and spring washer, then
securely
tightened.
Torque blade mounting
capscrew
to
45 - 55 ft. Ibs. (61 - 75 N.m.)
1. Remove mower deck (see "Mower Deck Removal" in
the OPERATION section).
2. See Figure 18. Remove blade to inspect it or to safe-
ly access the underside of the mower deck. Use a
block of wood to prevent blade rotation while loosen-
ing the capscrew by turning it counterclockwise.
3. Remove the capscrew (D, Figure 20), spring washer
(C), hex washer (B), and blade.
4. Clean the underside of the mower deck.
5. Inspect the blades for nicks or dull edges. Use a file
to sharpen blade to a fine edge. If the blade is dam-
aged, it must be replaced.
6. Balance the blade as shown in Figure 19. Center the
blade's hole on a nail lubricated with a drop of oil. A
balanced blade will remain level. If the blade is not
balanced, continue to sharpen the heavy side until it
balances.
7. Reinstall the blade with the lift wings (E, Figure 20)
pointing up toward the mower deck as shown.
8. Reinstall the hex washer (B, Figure 20), spring wash-
er (C) and capscrew (D). Use a wooden block (A) to
prevent blade rotation while tightening the capscrew
(D) to 45-55 ft. Ibs. (61-75 N.m). Turn capscrew
clockwise to tighten.
Figure 18. Blade Removal
Workbench
Figure 19. Balancing
The Blade
Figure 20. Blade installation
A. 4x4 Wood Block
B. Hex Washer
C. Spring Washer
D. Blade Capscrew
E. Lift Wings
J
J
LOOSEN
Nail
2O

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