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Section 5: Maintenance & Lubrication
RCR1542 and RCR1548 Rotary Cutters 312-556M
11/25/15
Table of Contents
Section 5: Maintenance & Lubrication
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 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 tractor PTO shaft before
servicing underside of cutter. If tractor is started with PTO
engaged, the cutter can cause bodily injury or death.
• Always secure cutter deck in the up position with solid
supports before servicing underside of cutter. Never work
under equipment supported by hydraulics. Hydraulics can
drop equipment if controls are actuated or if hydraulic lines
burst. Either situation can drop the cutter instantly even when
power to the hydraulics is shut off.
!
WARNING
To avoid serious injury or death:
• Keep blade bolt access hole covered at all times except when
servicing cutter blades. Make sure driveline is disconnected
from the tractor before servicing cutter blades.
• 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 from
the cutter at high speeds causing serious injury or death.
• 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 a new Land Pride blades to assure safety.
!
CAUTION
To avoid serious injury:
• Buildup of debris around moving parts is a fire hazard. Keep
drivelines & other rotating parts 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.
• Do not alter Land Pride equipment or replace parts with
other brands. Doing so can cause equipment to perform
improperly and may lead to breakage that can cause bodily
injury. Replace parts only with genuine Land Pride parts.
Cutter Blade Maintenance
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. 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 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
when sharpened.
Refer to Figure 4-1 on page 21:
4. Remove 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 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.
Refer to Figure 4-2 on page 21:
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 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.