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Section 4: Maintenance & Lubrication
RCF2084 Rotary Cutters 326-461M
11/14/18
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 power take-off shaft before
servicing underside of cutter. The tractor can be started with
•
Always secure equipment with solid, non-concrete supports
before working under it. Never go under equipment
supported by concrete blocks or hydraulics. Concrete can
break, hydraulic lines can burst, and/or hydraulic controls
can be actuated even when power to hydraulics is off.
!
WARNING
To avoid serious injury or death:
•
Do not alter implement or replace parts on the implement
with other brands. Other brands may not fit properly or
meet OEM (Original Equipment Manufacturer)
specifications. They can weaken the integrity and impair the
safety, function, performance, and life of the implement.
Replace parts only with genuine OEM parts.
•
Buildup of debris around moving components and gearboxes
is a fire hazard. Keep rotating parts and gearboxes free from
debris to avoid serious injury and property damage.
•
Improper oil level can cause bearing failure and be a fire
hazard. Maintain proper gearbox oil level to avoid serious
Cutter Blade Maintenance
!
WARNING
To avoid serious injury or death:
•
Do not operate cutter with blades that are out-of-balance,
bent, excessively worn, excessively nicked, or with blade
bolts that are excessively worn. Such blades can break loose
•
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.
•
A locknut that has been removed can lose its thread locking
properties. Reusing a used locknut can result in a thrown
blade. Always use a new locknut when installing blades.
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 power take-off
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 25:
4. To remove blades from the cutter, remove access
cover (#5).
5. Rotate blade bolt (#1) until aligned with access
hole (A).
6. Unscrew locknut (#3) to remove cutting blade (#6).
Blade bolt (#1) is keyed and will not turn freely.
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 in the cutting unit. 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.
IMPORTANT:
Replace cutting blades with genuine
Land Pride blades only. Blades must be replaced in
sets. Not replacing blades in sets will result in an
out-of-balance condition that could 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 4:
Maintenance & Lubrication
