Land Pride FDR3690 Operator's Manual page 25

Section 4: Maintenance & Lubrication
Blade Sharpening or Replacement
Refer to Figure 4-3:
Land Pride Part Numbers & Descriptions
Part No. Part Description
High Lift Blade
(2 blades required per spindle)
891-257C 1/4" x 2 1/2" x 14" CW BLADE
!
WARNING
To avoid serious injury or death:
Replace mower blades in pairs with genuine Land Pride
blades only. Not replacing both blades will result in an out-of-
balance condition.
IMPORTANT: Out-of-balance blades will contribute
to bearing damage and structural cracks in the
mower housing.
1. Clean blade and mounting surface of all debris
before sharpening or replacing the blades.
2. See Figure 4-3: Grind cutting edge at the same bevel
as the original and sharpen only the top of the cutting
edge to maintain sharpness.
3. Check blade balance by weighing both blades
individually. They should weigh the same with not
more than 1 1/2 oz. difference between the two
blades that make up a pair.
4. Make an identifying mark on both blades to make
certain they are kept together as a matching pair.
Blade Installation
Refer to Figure 4-2 & Figure 4-4:
IMPORTANT: Always install blade with cutting edge
facing direction of rotation and wing tips pointing up.
1. Mount blade with wing tips pointing up towards
bottom of deck.
2. Reinstall blade (#5) to blade carrier (#1) with blade
bolt (#2) and hex slotted nut (#3). Do not tighten hex
slotted nut.
3. Draw hex slotted nut up snug and then back nut up
until first available slot in nut aligns with hole in blade
bolt. Insert cotter pin (#4) and bend both legs back
around the nut to keep cotter pin from falling out.
V-Belt Installation
Refer to Figure 4-4:
An illustration similar to Figure 4-4 is also illustrated on a
decal located on the deck under the center belt guard.
1. Remove right, center, and left-hand belt covers.
2. Disengage belt tension by loosening eyebolt (#1) and
removing spring (#2) from tension-chain (#3).
3. Remove old belt from pulleys and install new belt
around all six pulleys. Check to make certain belt is
properly positioned in all the pulley grooves.
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4. Engage belt tension by hooking the tension spring
back onto the chain and tightening the eyebolt to the
proper tension. See "Belt Tension" on page 15 for
detailed tensioning instructions.
5. Reinstall belt covers and secure with knobs.
FDR3690 Rear Discharge Grooming Mower 310-447M
Cutting Edge Down
Mower Blade Assembly
Figure 4-2
Blade Sharpening
Figure 4-3
FRONT
1 3 2
V-Belt Installation (Top View)
Figure 4-4
Wing Tip Up
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