Land Pride RCR1884 User Manual download pdf (Page 26)

Section 5: Maintenance and Lubrication

RCR1884 Series Rotary Cutters 312-880M

9/24/08

Land Pride

Table of Contents

Maintenance

Proper servicing and adjustment is the key to the long life

of any implement. With careful and systematic

inspection, 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 labels by

obtaining new labels from your Land Pride Dealer.

Cutter Blade Maintenance

DANGER

Always disconnect main driveline from tractor PTO before

servicing the underside of the cutter deck. Cutter can be

engaged if tractor is started resulting in damage to the cutter,

bodily injury and/or death.

WARNING

Always secure cutter deck in the up position with solid supports

before servicing the underside of the 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.

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.

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. Inspect cutting blades. 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

sharpened.

4. To remove blades from the cutter, align blade bolts

with blade bolt access hole located in the deck as

shown in Figure 5-1.

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 break down on the spindle hub

and create structural cracks in cutter housing.

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. 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 after

sharpening with not more than 1 1/2 oz. difference.

Refer to Figure 5-1:

6. 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.

Counterclockwise Blade Rotation

Figure 5-1

Refer to Figure 5-2 on page 25:

7. Start by assembling blades without shim (#2). Insert

blade bolt (#1) through blade (#3), dish pan (#4) and

flat washer (#5). Temporary secure blade with a used

1 1/8"-12 nut. Draw nut up snug. Do not tighten.

24584

Blade Bolt

Access Hole

IMPORTANT: Examine blade bolts (#1) and

washers (#5) for excessive wear and replace if worn.

IMPORTANT: Locknuts can loose their ability to

lock properly once removed. Therefore, always use

a used blade nut or plain nut in steps 7 & 8 below

and then replace used nut with new locknut in

step 9.

Section 5: Maintenance and Lubrication

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Land Pride RCR1884 User Manual Page 26

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