Land Pride RCR1860 Operator's Manual page 30

Section 5: Maintenance &Lubrication
Section 5: Maintenance &Lubrication
Maintenance
Proper servicing and adjustments are key to the long life
of any farm implement. Careful and systematic
inspection can avoid costly downtime, maintenance, and
repairs.
Check all bolts after using the unit for several hours to be
sure they are tight. Replace any 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 power take-off engaged.
•
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
injury and property damage.
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
at high speeds.
•
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 genuine OEM blades to
assure safety.
IMPORTANT: Only replace cutting blades in pairs
with genuine OEM blades. 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.
26
RCR1860 & RCR1872 Rotary Cutters 312-849M
Table of Contents
Always inspect cutting blades before each use. Make
sure they are properly installed and in working condition.
Replace any blade that is damaged, worn, bent, or
excessively nicked. Never try to straighten a bent blade!
Small nicks can be ground out when sharpening.
Remove cutting blades and sharpen or replace as
follows:
1. Place tractor gear selector in park and/or 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 27:
4. To remove blades from the cutter, remove blade bolt
access cover (#6)
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 (#5) to remove cutting blade (#2).
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 after
sharpening with not more than 1 1/2 oz.
difference.
Refer to Figure 5-2 on page 27:
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.
Refer to Figure 5-1 on page 27:
!
WARNING
To avoid serious injury or death:
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.
10/23/20