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Service Mower - 39
SERVICE MOWER
INSTALLING MOWER BLADES
1. Lightly lubricate cap screw threads with a general
purpose grease or oil. This lubrication is to prevent rusting
and seizing.
2. Position mower blade (D) with the cutting edge towards
the ground onto the mower spindle.
3. Install cupped blade washer (C) with cup side toward the
blade.
4. Install hardened washer (B).
5. Install and tighten cap screw (A) by hand until mower
blade is in full contact (fully seated) with spindle.
6. With mower blade blocked, to prevent spinning, tighten
cap screws to 56 N•m (41 lb-ft.)).
42-Inch Mower Deck
REMOVING MOWER BLADES
1. Raise mower deck to gain access to mower blades. If
necessary, remove mower deck.
2. Using a wooden block, prevent mower blades from
spinning.
NOTE: Before removing hardware, note the orientation
of the cupped blade washer (C) to ensure proper
installation.
3. Loosen and remove cap screw (A), hardened washer
(B), cupped blade washer (C), blade (D) and deflector cup
(E).
4. Inspect blades; sharpen/balance or replace as
necessary.
INSTALLING MOWER BLADES
1. Lightly lubricate cap screw threads with a general
purpose grease or oil. This lubrication is to prevent rusting
and seizing.
2. Install deflector cup (E) on spindle.
3. Position mower blade (D) with the cutting edge towards
the ground onto the mower spindle.
4. Install cupped blade washer (C) with CUPPED SIDE
toward the blade.
5. Install hardened washer (B).
6. Install and tighten cap screw (A) by hand until mower
blade is in full contact (fully seated) with spindle.
7. With mower blade blocked, to prevent spinning, tighten
bolt to 56 N•m (41 lb-ft.).
c
CAUTION: Avoid injury! Be careful, sharp
edges on mower blades. Always wear gloves
when handling mower blades.
M88112h
B
C
A
D
M88119c
A
D
E
C
B
M88112h
D
E
A
B
C