Land Pride RCF2760 and RCF2772 ユーザーズマニュアル
22
Section 5: Maintenance & Lubrication
RCF2760 and RCF2772 Rotary Cutters 326-460M
12/15/15
Maintenance
Proper servicing and adjustments are key to the long life
of any implement. Careful and systematic inspection can
avoid costly downtime, maintenance, and repairs.
of any implement. Careful and systematic inspection can
avoid costly downtime, maintenance, and repairs.
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.
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.
obtaining new labels from your Land Pride dealer.
!
CAUTION
!
CAUTION
!
CAUTION
Cutter Blade Maintenance
!
DANGER
!
DANGER
!
WARNING
!
WARNING
!
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.
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.
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 as
follows:
follows:
1.
Place tractor gear selector in park, set brakes, shut
engine off, and remove ignition key.
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.
secure cutter deck in the up position with solid
supports before servicing underside of cutter.
Refer to Figure 5-1 on page 23:
3.
3.
Remove access cover (#5).
4.
Rotate blade bolt (#1) until aligned with access
hole (A).
hole (A).
5.
Unscrew locknut (#3) to remove cutting blade (#6).
Blade bolt (#1) is keyed and will not turn freely.
Blade bolt (#1) is keyed and will not turn freely.
6.
Repeat steps 4 & 5 for the other blade.
7.
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:
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.
cause excessive vibration which can damage
gearbox bearings and create structural cracks.
8.
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.
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.
Section 5: Maintenance & Lubrication