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Section 5: Maintenance & Lubrication
RCF2060 and RCF2072 Rotary Cutters 326-459M
10/18/16
Maintenance
Proper servicing and adjustments are key to the long life
of any implement. With careful inspection and routine
maintenance, you can avoid costly downtime and repair.
Check all bolts and pins after using the unit for several
hours and on a regular basis thereafter to ensure they are
tight and secured. Replace worn, damaged, or illegible
safety labels by obtaining new labels from your Land
Pride Dealer.
!
DANGER
To avoid serious injury or death:
•
Always disconnect driveline from tractor PTO shaft before
•
Always secure equipment with solid supports before working
!
WARNING
!
CAUTION
To avoid serious injury:
•
Buildup of debris around moving parts and gearboxes is a fire
•
Improper oil level can cause bearing failure and be a fire
hazard. Maintain proper gearbox oil level to avoid serious
injury and property damage.
Cutter Blade Maintenance
!
WARNING
To avoid serious injury or death:
•
Keep blade bolt access hole covered at all times except when
•
Do not operate cutter with blades that are out-of-balance,
•
Do not attempt to straighten a bent blade or weld on a blade.
Do not attempt to modify a blade such as hard surfacing, heat
treating, cold treating, or by any other method. Always
replace blades with new Land Pride blades to assure safety.
Always inspect cutting blades before each use. Make
certain they are properly installed and are in good working
condition. Replace any blade that is damaged, worn, bent,
or excessively nicked. Small nicks can be ground out.
Remove blades and sharpen or replace as follows:
1.
Place tractor gear selector in park and set brakes,
shut engine off, and remove ignition key.
2.
Disconnect main driveline from tractor PTO and
secure cutter deck in the up position with solid
supports before servicing underside of cutter.
3.
Inspect cutting blades. Make certain they are
properly installed and are in good working condition.
Replace any blade that is damaged, worn, bent, or
excessively nicked. Small nicks can be ground out.
Refer to Figure 5-1 on page 23:
4.
Remove access cover (#5).
5.
Rotate blade bolt (#1) until in alignment with access
hole (A).
6.
Blade bolt (#1) is keyed and will not turn freely.
Unscrew locknut (#4) to remove cutting blade (#6).
7.
Repeat steps 5 & 6 for the other blade.
8.
Both blades should be sharpened at the same angle
as the original cutting edge and must be replaced or
re-ground at the same time to maintain proper
balance. The following precautions should be taken
when sharpening blades:
a. Do not remove more material than necessary.
b. Do not heat and pound out a cutting edge.
c. Do not grind blades to a razor edge. Leave a blunt
cutting edge approximately 1/16" thick.
d. Always grind cutting edge so end of blade remains
square to cutting edge and not rounded.
e. Do not sharpen back side of blade.
f. Both blades should weigh the same with not more
than 1 1/2 oz. difference. Unbalanced blades will
cause excessive vibration which can damage
gearbox bearings and create structural cracks.
9.
Carefully check cutting edges of blades in relation to
blade carrier rotation to ensure correct blade
placement. Blade rotation is counterclockwise with
cutting edge leading. Airfoil (lift) must be oriented
towards the top of the deck.
Replace cutting blades in pairs with
genuine Land Pride blades only. Replacing single
blades can result in an out-of-balance condition that
will contribute to premature bearing wear/breakage
and/or structural cracks in gearbox and/or deck.
IMPORTANT:
Examine blade bolts (#1) and flat
washers (#2) for excessive wear and replace if worn.
Section 5:
Maintenance & Lubrication