Land Pride RCR1860, RCR1872 manual Slip-Clutch Protected Drivelines, Shearbolt Protected Drivelines

Table of Contents

Section 5: Maintenance and Lubrication

Land Pride

9.Once blade deflection is correct, replace used nut with new locknut (#6) and torque to 450 ft-lbs.

10.If replacing dishpan (#4), nut on gearbox output shaft should be torqued to 450 ft-lbs. minimum and cotter pin installed in nut with legs securely bent around nut.

!CAUTION

Engage parking brake, disengage PTO, shut off tractor, and remove key before making any of the following adjustments.

Slip-Clutch Protected Drivelines

3/4" maximum

blade deflection

when blade

bolts are tight

24590

Cutter Blade Assembly

Figure 5-2

Driveline components are protected from shock loads by a two plate slip-clutch. The clutch must be capable of slippage during operation to protect the gearbox, driveline and other drivetrain parts. The slip-clutch driveline is secured to the cutter with a grade 8 bolt.

The clutch should be “run-in” prior to initial operation and after long periods of inactivity to remove any oxidation that may have accumulated on the friction surfaces. Repeat “run-in” instructions at the beginning of each season and when moisture and/or condensation seizes the inner friction plates.

!CAUTION

Engage parking brake, disengage PTO, shut off tractor, and remove key before making any of the following adjustments.

Land Pride Cutter Blade Parts

Item Part No. Part Description

318-586A BLADE BOLT KIT

(Includes items 1, 2, 5, & 6 below)

1802-277C BLADE BOLT 1 1/8-12 x 3 7/16 WITH KEY

2312-075D BLADE SPACER 16 GA. (.060")

2	312-082D	BLADE SPACER 18 GA. (.048")
2	312-089D	BLADE SPACER 20 GA. (.036")

2312-808D BLADE SPACER 24 GA. (.024")

3820-198C RCR1860 STANDARD BLADE 25”LG. CCW

3	820-199C	RCR1872 STANDARD BLADE 31”LG. CCW
3	820-212C	RCR1860 LOW LIFT BLADE 25”LG. CCW

3820-213C RCR1872 LOW LIFT BLADE 31”LG. CCW

4312-815H RCR1860 15” DISHPAN WELDMENT

4312-841H RCR1872 15” DISHPAN WELDMENT

5804-147C WASHER FLAT 1 HARD ASTMF436

6803-170C NUT HEX TOP LOCK 1 1/8-12 PLATE

Shearbolt Protected Drivelines

The Standard Shear Bolt Driveline is secured to the cutter with a shearbolt for protection of driveline and gearbox. The shearbolt is designed to shear off when the blade impacts objects that the cutter is not designed to cut through. Replace shearbolt with Land Pride part #802-264C. Refer to Figure 1-5 on page 10.

IMPORTANT: A snap ring is installed so that the driveline does not come loose from the gearbox should the shearbolt shear. (Replace damaged or worn snap ring with Land Pride part #800-079C)

Clutch Run-In

Refer to Refer to Figure 5-3:

1.Using a pencil or other marker, scribe a line across the exposed edges of the clutch plates and friction discs.

13693

Clutch

Figure 5-3

2.Carefully loosen each of the 8 spring retainer nuts by exactly 2 revolutions. It will be necessary to hold hex end of retainer bolt in order to count the exact number of revolutions.

3.Start tractor and engage PTO drive for 2-3 seconds to permit slippage of the clutch surfaces. Disengage PTO, then re-engage a second time for 2-3 seconds. Disengage PTO, shut off tractor and remove key.

Wait for all components to stop before dismounting from tractor.

4.Inspect clutch and ensure that the scribed markings made on the clutch plates have changed position. Slippage has not occurred if any two marks on the friction disc and plate are still aligned. A clutch that has not slipped must be disassembled to separate the friction disc plates. See “Clutch Assembly and Disassembly” on page 21.

20 RCR1860 and RCR1872 Series Rotary Cutters 312-849M 12/17/07