Land Pride RCM6015 - Manual (Page 26)

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Section 5: Maintenance & Lubrication
RC5015 & RC6015 (540 RPM) and RCM5015 & RCM6015 (1000 RPM) Rotary Cutters 318-047M 8/28/08
Land Pride
Table of Contents
General Maintenance Information
Proper servicing and adjustment is the key to the long life
of any implement. With careful and systematic
inspection, you can avoid costly maintenance, time 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.
Cutter Blade Maintenance
!
DANGER!
Always disconnect main driveline from tractor PTO before
servicing the underside of the cutter deck. Cutter can be
engaged if tractor is started resulting in damage to the cutter,
bodily injury and/or death.
!
WARNING!
Always secure cutter deck in the up position with solid supports
before servicing the underside of the 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.
1. Always disconnect main driveline from tractor PTO
and secure cutter deck in the up position with solid
supports before servicing the underside of the cutter.
2. 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.
3. 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 the 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 the cutting edge so that the end of the
blade remains square to the cutting edge and not
rounded.
IMPORTANT: Blades must be ordered and replaced in
pairs. Order only genuine Land Pride blades. Land
Pride blades are made of special heat treated alloy
steel. Substitute blades may not meet Land Pride’s
specifications and may be dangerous to operate.
e. Do not sharpen the back side of the blade.
f. Both blades should weigh the same after
sharpening with not more than 1 oz. difference.
4. Examine blade bolts for excessive wear and replace
if necessary. To replace blade bolts:
a. Order land Pride blade bolt part #802-277C and
lock nut #803-170C.
b. Refer to Figure 5-1: Carefully check the cutting
edges of the blades in relation to the blade carrier
rotation to ensure correct blade placement.
c. Torque blade lock nut to 450 ft-lbs. An extended
cheater bar may be required.
5. If replacing dishpan, nut on gearbox output shaft
should be torqued to 550 ft-lbs. minimum and cotter
pin installed in nut with legs securely bent around
nut.
Blade Rotation
Figure 5-1
IMPORTANT: Unbalanced blades will cause
excessive vibration which can damage gear box
bearings and create structural cracks in cutter housing.
CCW
CCW
CC
Land Pride Cutter Blade Parts
Part No. Part Description
820-168C CUTTER BLADE 1/2 x 4 x 29 CCW (CTR)
820-169C CUTTER BLADE 1/2 x 4 x 23 CCW (RH WING)
820-170C CUTTER BLADE 1/2 x 4 x 23 CW (LH WING)
802-277C BLADE BOLT 1 1/8-12 x 3 7/16 WITH KEY
803-170C NUT HEX TOP LOCK 1 1/8-12 PLATE
804-147C WASHER FLAT 1 HARD ASTMF436 PN
Section 5:
Maintenance & Lubrication