Land Pride RCM4015 Brush Cutter User Manual


 
39
Section 5: Maintenance & Lubrication
10/21/15
RC4015 and RCM4015 Series 2 S/N 944961+ Rotary Cutters 330-845M
Table of Contents
Refer to Figure 5-2:
3. Remove rubber plug (#5). Rotate blade carrier (#4)
until blade bolt (#1) aligns with access hole (A).
4. Unscrew locknut (#3) to remove cutter 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.
Refer to Figure 5-1:
6. Carefully check cutting edges of blades in relation to
blade carrier rotation to ensure correct blade
placement. Cutter blades must be installed with
cutting edge leading in rotation.
Refer to Figure 5-2:
7. Insert blade bolt (#1) through blade (#6),
dishpan (#4), and flat washer (#2). Secure blade with
a new locknut (#3) and torque to 450 ft-lbs.
8. 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.
9. Replace rubber plug (#5).
10. Reconnect main driveline to tractor PTO shaft.
IMPORTANT: Examine blade bolts and their flat
washers for excessive wear and replace if worn.
IMPORTANT: Locknuts can lose their ability to lock
properly once removed. Always use a new locknut
when installing blades.
Blade Rotation
Figure 5-1
Cutter Blade Assembly
Figure 5-2
CCW
CCW
CW
37943
Use 1-11/16"
Socket Wrench
On Blade Nut (#3)
Land Pride Cutter Blade Parts
Item Part No. Part Description
318-586A BLADE BOLT KIT
(Includes items 1, 2, & 3 below)
1 802-277C BLADE BOLT 1 1/8-12 x 3 7/16 WITH KEY
2 804-147C WASHER FLAT 1 HARD ASTMF436
3 803-170C NUT HEX TOP LOCK 1 1/8-12 PLATE
4 326-430H DISHPAN, 15" CTR WITH HEAVY HUB
5 840-273C
PLUG LP 3" ID RUBBER
6 820-112C CUTTER BLADE 1/2 x 4 x 25 CW (LH WING)
6 820-137C CUTTER BLADE 1/2 x 4 x 25 CCW (RH WING)
6 820-138C CUTTER BLADE 1/2 x 4 x 31 CCW (CTR)