Land Pride RCR1260 Manuale Utente
23
Section 5: Maintenance & Lubrication
12/15/15
RCR1248, RCR1260 and RCR1272 Rotary Cutter 326-047M
Remove cutting blades and sharpen or replace as
follows:
follows:
1.
Place tractor gear selector in park and/or set brakes,
shut engine off, and remove ignition key.
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.
secure cutter deck in the up position with solid
supports before servicing underside of cutter.
Refer to Figure 5-4 on page 23:
3.
Remove access cover (#5).
4.
Rotate blade bolt (#1) until in alignment 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.
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.
Refer to Figure 5-5:
7.
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.
Refer to Figure 5-4:
8.
Insert blade bolt (#1) through blade (#6), dish
pan (#4), and flat washer (#2). Secure blade with a
new locknut (#3) and torque to 450 ft-lbs.
pan (#4), and flat washer (#2). Secure blade with a
new locknut (#3) and torque to 450 ft-lbs.
9.
Replace access cover (#5).
10. If replacing dishpan (#4), nut (#7) on gearbox output
shaft should be torqued to 450 ft-lbs. minimum and
secured with cotter pin (#8) with both legs bent
opposite directions around the nut.
secured with cotter pin (#8) with both legs bent
opposite directions around the nut.
IMPORTANT: Locknuts can loose their ability to lock
properly once removed. Always use a new locknut
when installing blades.
properly once removed. Always use a new locknut
when installing blades.
Cutter Blade Assembly
Figure 5-4
Counterclockwise Blade Rotation
Figure 5-5
30298
Land Pride Rotary Cutter Blade Parts
Item Part No.
Part Description
326-185A
BLADE BOLT KIT (Items 1, 2, & 3 below)
326-038A
48" MATCHED BLADE KIT (Items 1, 2, 3, & 6)
326-039A
60" MATCHED BLADE KIT (Items 1, 2, 3, & 6)
326-040A
72" MATCHED BLADE KIT (Items 1, 2, 3, & 6)
1
802-920C
BLD BOLT 1 1/8-12 x 3 1/2" with 3/16" KEY
2
804-147C
WASHER FLAT 1 1/4 SAE PLAIN
3
803-170C
NUT HEX TOP LOCK 1 1/8-12 PLT.
4
326-367H
DISHPAN 15 1/2", RCR12 SERIES
5
840-273C
PLUG LP 3" ID RUBBER
6
820-065C
48"CUTTER BLADE 1/2 x 3 x 18 3/4 CCW
6
820-198C
60" CUTTER BLADE 1/2" x 3" x 25" CCW
6
820-199C
72" CUTTER BLADE 1/2" x 3 x 31" CCW
7
803-095C
NUT HEX SLOTTED 1-14
8
805-017C
PIN COTTER 3/16 X 1 3/4 PLT
9
804-070C
FLAT WASHER 1 SPECIAL
Use 1-11/16"
Socket Wrench
On Blade Nut (#3)
30287