Land Pride RC35 Series, RC25 Series manual Maintenance, Service Cutting Blades, Shearbolt Driveline

Page 19

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 in- spection, you can avoid costly maintenance, time and re- pair.

After using your 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

Slip Clutch Driveline

14221

Figure 5-1

 

1.Both blades 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.

NOTE: Care should be taken in order not to remove any more material than necessary when sharpening blades.

2.Both blades should weigh the same after sharpening.

3.When replacing or sharpening the cutter blades, ex- amine bolts for excessive wear and replace if neces- sary. To replace blades:

a.Order blade bolt Land Pride part # 802-277C.

b.Blade shim (#30), must be installed to insure a tight and proper fit between the blade bolt and blade. Too tight a fit may cause blade to not swing back into proper cutting position after striking ob- stacles. Too loose a fit will cause play between blade bolt and blade resulting in excessive wear on blade carrier, blade bolts and blades. Three sizes of shims are available: 16 ga., part no. 312- 075D; 18 ga., part no. 312-082D; & 20 ga., part no. 312-089D.

c.Torque blade bolt lock nut to 450 ft. pounds. Use a 3’ long pipe to achieve proper torque.

4.If replacing dishpan, nut on gearbox output shaft should be torqued to 450 foot/pounds and cotter pin installed in nut with legs securely bent around nut.

Shearbolt Driveline

Prior to initial operation and after long periods of inactivity, the Friction Clutch should be "run-in".

a.Tighten all 4 nuts uniformly until the spring load is low enough that the clutch slips freely with the PTO engaged.

b.Turn nuts fully back. Clutch is ready for use.

!CAUTION!

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

Eurocardan Clutch Run-In

Refer to Figure 5-2:

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

Cutter drive components are protected from shock loads

13693

Clutch

by a 1/2" shear bolt. If shear bolt fails, replace with a 1/2" x 3 1/2" long hex bolt, grade 2. Shear bolt failure can be avoided by engaging the PTO slowly at low engine rpm.

Walterscheid Slip Clutch Run-In

Refer to Figure 5-1:

RC15 and RC25 Rotary Cutters drive components are protected from shock loads by a two plate slip clutch and the RC35 Rotary Cutters are protected by a four plate slip clutch. The clutch should slip during operation to protect the cutter from excessive loads.

Figure 5-2

2.Carefully loosen each of the 8 spring retainer nuts on the clutch housing a total of EXACTLY 2 revolutions. It will be necessary to hold the hex end of the retainer bolt in order to count the exact number of revolutions.

3.Start the tractor and engage the PTO drive for 2-3 sec- onds to permit slippage of the clutch surfaces. Disen- gage the PTO, then re-engage a second time for 2-3 seconds. Disengage the PTO, shut off tractor and re- move key. Wait for all components to stop before dis- mounting from tractor.

9/25/08

RC15, RC25, and RC35 Series Rotary Cutter 312-298M

17

Image 19
Contents Rotary Cutter Operator’s ManualTable of Contents Safety Notations 818-130C 818-161C Safety Labels818-229C 818-187C818-552C 818-540C818-555C 818-554C818-555C 818-556C 818-557C 818-564CDefinitions Using This ManualOwner Assistance TerminologyTractor Requirements Hitch AssemblyPoint Tractor Hookup Driveline InstallationRC15 Tailwheel RC25 & RC35 TailwheelSafety Guards Cutting Instructions Operating ChecklistTransporting Operating Check ListCutting Height Height Adjustment Troubleshooting Problem Cause Solution Excessive vibration Eurocardan Clutch Run-In MaintenanceService Cutting Blades Shearbolt DrivelineStorage Eurocardan Clutch Assembly & DisassemblyAssembly Step Disassembly StepPlate Slip Clutch 20 RC15, RC25, and RC35 Series Rotary Cutter 312-298M 25/08 Tailwheel hub LubricationLubrication Tailwheel Spindle HubDriveline GearboxRC15 Series Rotary Cutter Specifications and CapacitiesRC25 Series Rotary Cutter RC35 Series Rotary Cutter Bolt Head Identification Bolt Size 10.9 Inches Metric Torque Values Chart for Common Bolt SizesWarranty Land Pride Division Great Plains Manufacturing, Inc