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Section 5: Maintenance & Lubrication
RCD1884 Rotary Cutters 326-355M
12/15/15
Table of Contents
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.
!
CAUTION
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.
!
CAUTION
Buildup of debris around moving parts and gearboxes is a fire
hazard. Keep rotating parts and gearboxes free from debris to
avoid serious injury and property damage.
!
CAUTION
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
!
DANGER
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.
!
DANGER
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
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.
!
WARNING
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.
!
WARNING
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 blade 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 when
sharpening. Remove cutting blades and sharpen or
replace:
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.
Refer to Figure 5-1 on page 25:
3. Remove access cover (#5).
4. Rotate blade bolt (#1) until aligned with access
hole (A).
5. Unscrew locknut (#3) to remove cutting blade (#6).
Blade bolt (#1) is keyed and will not turn freely.
6. 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.
7. Carefully check cutting edges of blades in relation to
blade rotation to ensure correct blade placement.
Blade rotation is counterclockwise with cutting edge
leading. See Figure 5-2 on page 25. 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.
IMPORTANT: Locknuts can loose their ability to lock
properly once removed. Always use a new locknut
when installing blades.
Section 5: Maintenance & Lubrication