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Section 5 Maintenance and Lubrication
7/14/08
RC35120 RCM35120 Rotary Cutter 312-301M
Land Pride
Table of Contents
Section 5
Maintenance and Lubrication
Maintenance
Proper servicing and adjustment is the key to the long life of
any farm implement. With careful and systematic inspec-
tion, you can avoid costly maintenance, time and repair.
After using your Rotary Cutter for several hours, check all
bolts to be sure they are tight.
Replace any worn, damaged or illegible safety decals by
obtaining new decals from your Land Pride Dealer.
Service Cutting Blades
1.
Both blades on each dishpan should be sharpened at
the same angle as the original cutting edge and must
be replaced or reground at the same time to maintain
proper balance in the cutting unit.
2.
Both blades on each dishpan should weigh the same
after sharpening.
3.
When replacing or sharpening the cutter blades, exam-
ine bolts for excessive wear and replace if necessary.
To replace blades:
a.
Order blade bolt Land Pride part # 802-277C,
clockwise blade part # 820-076C, and counter-
clockwise blade part # 820-075C.
b.
Torque blade bolt lock nut to 450 ft. pounds. An ex-
tended cheater bar may be required to achieve
proper torque.
c.
Carefully check the cutting edges of the blades in
relation to the blade carrier rotation, below to insure
correct blade placement.
4.
Blade dishpan replacement:
Refer to Figure 5-1:
a.
Blades must be indexed 90˚ to one another to pre-
vent blade collision.
b.
Dishpan nut on gearbox output shafts should be
torqued to 450 ft. pounds and cotter pin installed in
nut with legs bent around.
!
CAUTION!
Engage parking brake, disengage PTO, shut off tractor, and re-
move key before making any of the following adjustments.
Skid Shoe Service & Replacement
1.
Check skid runners and skid shoes for wear and re-
place if necessary. Order skid shoe Land Pride part #
312-175D or 312-079A (1 set with hardware).
!
WARNING!
Excessive wear on skids may cause inadequate operation of cut-
ter and create a safety hazard!
2.
Plow bolts should be checked for wear and replaced if
necessary. Order Land Pride part # 802-020C.
Refer to Figure 5-2:
3.
To replace skid shoes:
a.
Remove existing skid shoes.
b.
Attach skid shoe to cutter, using four 3/8” plow
bolts, flat washers and lock nuts.
c.
Repeat on opposite side of cutter.
Flex Couplers
Refer to Figure 5-3:
1.
Disks (#1) and beaded washers (#2) should be re-
placed if disassembling flex coupler shaft.
2.
When replacing disks; bolts (#3) and nuts (#4) should
be tightened evenly with nuts torqued 35 to 40 ft.
pounds. Beaded washers (#4) should be imbedded
halfway into disks.
NOTE: Replace blades with genuine Land Pride
parts only.
NOTE: Care should be taken in order not to remove
any more material than necessary when sharpening
blades.
Blade Rotation
Figure 5-1
Skid Shoe Replacement
Figure 5-2
14270
Flex Couplers
Figure 5-3
14560
