John Deere Tractor 100 Series OMG X23532 J0 - Manual (Page 37)

Service Mower - 36
SERVICE MOWER
MX25909
4. Measure distance from spindle brake bracket (B) to nut (C) on end of
brake rod.
• Bracket to nut distance should be: 2 - 3 mm (0.08 - 0.12 in).
5. If adjustment is required, turn nut (C) on end of brake rod in correct
direction to set brake at proper distance from pulley.
6. Adjust both brakes.
7. Install left and right belt shields.
8. Install mower deck.
Checking for Bent Mower Blades
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Raise mower deck to highest position to access blades.
MX4897
Picture Note: Mower deck with side discharge used for illustration
3. Measure distance (A) between blade tip and flat ground surface.
4. Rotate blade 180° and measure distance between other blade tip and
flat 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.
Servicing Mower Blades
Removing Mower Blades
1. Park machine safely. (See Parking Safely in 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.
MX16569
4. Loosen and remove nut (A), washer (B), and blade (C).
5. Inspect blades; sharpen, balance or replace blades as necessary.
Installing Mower Blades
1. Position mower blade (C) with the cutting edge towards the ground.
2. Align the splined center hole in the blade with the splined spindle shaft
(D) and put the blade onto the mower spindle shaft.
3. Install washer, with cupped side towards blade, and install nut to secure
blade onto splined spindle shaft.
4. Block mower blade with a piece of wood to prevent spinning and tighten
nut:
• Using 15/16 in. socket, tighten 5/8 in. blade nut to 88 N•m (65 lb-ft).
Sharpening Blades
• Sharpen blades with grinder, hand file, or electric blade sharpener.
c
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.
C
B
A
c
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 accidentally.
• Always wear gloves when handling mower blades or working
near blades.
c
CAUTION: Avoid injury! Blades are sharp. Always wear
gloves when handling blades or working near blades.
Always wear safety eye protection when grinding.
C
B
D
A