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Storing MulchControl™
Clean and store all MulchControl™ parts in a clean, dry place.
SB31882,00003E5-19-10JUN20
Installing Mulch Blades
CAUTION: Avoid injury! Blades are sharp. Always wear
gloves when handling blades or working near blades.
Replace blades if defective. Never straighten or weld them.
MXT015291—UN—19AUG15
1. Install blade (A) with cutting edge toward the ground.
2. Install large washer (B) and bolt (C).
3. Insert wood block between blade and mower to prevent the blade
from turning when tightening bolt.
4. Tighten bolt.
Specication
Blade Bolt—Torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 N·m
(50 lb·ft)
5. To check blade-to-mulch bafe clearance, rotate blades by hand. If
interference occurs, check that hardware is tightened.
SB31882,00003E3-19-27MAY20
Checking for Bent Mower Blades
CAUTION: Avoid Injury! Blades are sharp. Always wear
gloves when handling blades or working near blades.
Replace blades if defective. Never straighten or weld them.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Raise mower deck to highest position to access blades.
MXAL42867—UN—09APR13
Mower deck with side discharge used for illustration
3. Measure distance (A) between blade tip and at ground surface.
4. Rotate blade 180° and measure distance between other blade tip
and at ground surface.
5. Install new blade if the difference between the two measurements is
more than 3 mm (1/8 in).
6. Repeat for all blades.
MP47322,00F466C-19-25JUL18
Servicing Mower Blades
CAUTION: Avoid injury! Rotating blades are dangerous.
Before adjusting or servicing mower:
● Disconnect spark plug wire(s) or battery negative (-)
cable to prevent engine from starting accidently.
● Always wear gloves when handling mower blades or
working near blades.
Removing Mower Blades (42A, 48A, and 54A Mower Decks)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Raise mower deck to gain access to mower blades. If necessary,
remove mower deck.
3. Block mower blade with a piece of wood to prevent it from spinning.
GXT001605—UN—13MAY15
4. Loosen and remove bolt (A), washer (B), and blade (C) from
spindle (D).
5. Inspect blades; sharpen, balance or replace blades as necessary.
Installing Mower Blades (42A, 48A, and 54A Mower Decks)
1. Make sure deector cup (D) is seated properly between mower
spindle and blade.
2. Position mower blade (C) with cutting edge toward ground onto
mower spindle.
3. Install washer (B), with cupped side towards blade, and bolt (A) to
secure blade onto spindle shaft.
4. Block mower blade with a piece of wood to prevent spinning and
tighten bolt to specication.
MulchControl is a trademark of Deere & Company
Service Mower
44
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