Cutter Blade Maintenance - Land Pride RC2512 Operator's Manual

Section 5: Maintenance & Lubrication

Cutter Blade Maintenance

!
DANGER
Always disconnect main driveline from tractor PTO before
servicing underside of cutter. PTO can be engaged if tractor is
started causing cutter damage, 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 tractor PTO shaft before servicing cutter blades.
!
WARNING
Do not operate cutter with blades that are bent, out of balance,
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.
!
CAUTION
Wear a pair of gloves when preforming maintenance on the
cutter blades. Avoid direct contact with cutting edge of blade.
Refer to Figure 5-4:
IMPORTANT: Replace cutting blades with genuine
Land Pride blades only. Blades must be replaced in
mating pairs. Not replacing both blades will result in
an out-of-balance condition that will contribute to
premature bearing breakdown on the spindle hub
and create structural cracks in the cutter housing.
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. Remove rubber plug (#5) above cutter blade (#6).
Rotate blade bolt (#1) until in alignment with access
hole (A).
26 RC2512 Rotary Cutter 330-725M
Table of Contents
4. Unscrew locknut (#3) to remove cutting blade (#6).
Blade bolt (#1) is keyed and will not turn freely.
5. 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.
30628
Item Part No.
318-586A BLADE BOLT KIT (Item No's 1, 2, & 3)
)
1 802-277C BLADE BOLT 1 1/8-12 x 3 7/16 WITH KEY
2 804-147C WASHER FLAT 1 HARD ASTMF436 PN
3 803-170C NUT HEX TOP LOCK 1 1/8-12 PLATE
4
5 840-273C PLUG LP 3" ID RUBBER
6 820-198C CUTTER BLADE 1/2 x3x25 CCW (CTR Deck)
6 820-437C CUTTER BLADE 1/2 x3x19 CCW (LH Wing)
6 820-438C CUTTER BLADE 1/2 x3x19 CW (RH Wing)
Part Description
DISHPAN (See Parts Manual for Part No.)
Cutter Blade Assembly
Figure 5-4
Use 1-11/16"
Socket Wrench
On Blade Nut #3
3/27/15