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Section 4: Maintenance and Lubrication 

Table of Contents

RGR12 & RGA12 Series Rotary Tillers 311-948M

1/7/19

24

Driveline Protection

Tiller drive components are protected from shock loads 
with a two plate friction clutch.

Friction clutches 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.

Clutch Run-In

The clutch must be capable of slippage during operation 
to protect gearbox, driveline and other drivetrain parts. 
Friction clutches should be “run-in” prior to initial 
operation and after long periods of inactivity. To prevent 
driveline and gearbox damage, repeat clutch “run-in” at 
the beginning of each season and when moisture and/or 
condensation seizes the inner friction plates.

Refer to Figure 4-3:

1.

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

2. Carefully loosen each of the 8 spring retainer nuts by 

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 tractor and engage driveline for 2-3 seconds to 

permit slippage of clutch plate and disk surfaces. 
Disengage driveline and re-engage a second time for 
2-3 seconds. 

4. Shut tractor down before dismounting using 

“Tractor 

Shutdown Procedure” 

on page 8.

Clutch Run-In

Figure 4-3

5. 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 disk and plate are still aligned. A clutch that 
has not slipped must be disassembled to separate 
the clutch plates from the friction disks. See 

“Clutch 

Disassembly”

 instructions below.

6. Tighten each of the 8 spring retainer nuts on the 

clutch housing exactly 2 revolutions to restore clutch 
to its original setting pressure.

30560

7.

The clutch should be checked during the first hour of 
operation and periodically each week. An additional 
set of scribe marks can be added to check for 
slippage. See 

“Clutch Assembly”

 

to adjust for 

proper spring length.

Clutch Disassembly

If the clutch run-in procedure, (See 

“Clutch Run-In” 

on 

page 24), indicated that one or more of the friction disks did 
not slip, the clutch must be disassembled to separate the 
friction discs.

Refer to Figure 4-4:

See 

IMPORTANT NOTE

 above before disassembling 

clutch. After measuring and recording each spring 
length, remove spring retainer nuts (#1), springs (#2) and 
bolts (#3). Each friction disc (#4) must then be separated 
from the metal surface adjacent to it.

Clutch Disassembly/Assembly

Figure 4-4

Inspection

Inspect all parts for excessive wear and condition. Clean 
all parts that do not require replacement.The original 
friction disk thickness is 1/8" and should be replaced if 
the thickness falls below 3/32". If the clutch has been 
slipped to the point of “smoking”, the friction disks may be 
damaged and should be replaced. Heat build-up may 
also affect the yoke joints. 

IMPORTANT: Be sure to measure and record 
spring length ("A”) of each spring on the clutch 
before disassembling the clutch.

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Summary of Contents for RGR12 Series

Page 1: ...nual entirely When you see this symbol the subsequent instructions and warnings are serious follow without exception Your life and the lives of others depend on it Rotary Tillers RGR12 RGA12 Series 31...

Page 2: ...red the weights and measurements are no longer accurate for your machine Update the record by adding the machine weight and measurements provided in the Specifications Capacities Section of this manua...

Page 3: ...e Requirements 8 Tractor Shutdown Procedure 8 Park Stand Set up 8 Cone Shield Adjustment 8 Upper Hitch Plate Assembly 9 Manual Storage Tube Assembly 9 Lower 3 Point Hitch Pin Assembly 9 RGR12 Series F...

Page 4: ...the appropriate App on your smart phone open the App point your phone on the QR code and take a picture Dealer QR Locator The QR code on the left will link you to available dealers for Land Pride prod...

Page 5: ...ldren to play on the power machine or implement Use extra caution when backing up Before the tractor starts to move look down and behind to make sure the area is clear Safety at All Times Careful oper...

Page 6: ...ocation Allow only enough slack in the chain to permit turning Always hitch the implement to the machine towing it Do not use the safety chain tow the implement Transport Safely Comply with federal st...

Page 7: ...ones while operating equipment Use Seat Belt and ROPS Land Pride recommends the use of a CAB or roll over protective structures ROPS and seat belt in almost all power machines Combination of a CAB or...

Page 8: ...er visit our dealer locator at www landpride com 3 Some new equipment installed during repair requires safety labels to be affixed to the replaced component as 70274 RGR12 Series specified by Land Pri...

Page 9: ...portant Safety Information Table of Contents RGR12 RGA12 Series Rotary Tillers 311 948M 1 7 19 5 70273 RGA12 Series 70272 858 519C RGA12 Series Cluster Decal 818 543C RGR RGA Series Guard Missing Haza...

Page 10: ...RGA12 Series Rotary Tillers 311 948M 1 7 19 6 818 540C RGR RGA Series Guard Missing Hazard 818 552C RGR RGA Series Rotating Driveline Hazard RGA1258 Shown Applicable for both RGA RGR Series 70275 3037...

Page 11: ...ng family of new product owners This Rotary Tiller has been designed with care and built by skilled workers using quality materials Proper assembly maintenance and safe operating practices will help y...

Page 12: ...shield 3 Tighten metric bolts 13 to the correct torque Tractor Requirements Tractor horsepower should be within the range noted below Tractors outside the horsepower range must not be used Hitch Cate...

Page 13: ...orque Manual Storage Tube Assembly Refer to Figure 1 1 1 Attach manual storage tube 16 to hitch plate 2 with 1 4 20 x 1 1 4 GR5 bolts 14 flat washers 15 17 and nylock hex nuts 18 as shown 2 Tighten ny...

Page 14: ...Deflector Chain below if your tiller is the RGA12 Series 2 Attach rubber deflector 1 to tiller frame with 3 8 16 x 1 1 4 GR5 hex bolts 2 lock washers 3 and 1 1 2 fender washers 4 3 Tighten hex bolts 2...

Page 15: ...rear deflector with hex nuts 2 6 Tighten hex nuts 2 to the correct torque 7 Hook free end of deflector chain 1 in chain hook D Refer to Rear Deflector Adjustment on page 21 for additional instructions...

Page 16: ...ing tractor with tiller attached 3 Point Hook Up Refer to Figure 1 5 1 Make sure you have read and follow all Safety Alerts and notes in boxes listed under Hook Up Rotary Tiller on this page before co...

Page 17: ...eed which does not allow adequate control of steering and stopping and never exceed 20 mph 32 2 km h with attached equipment Rough terrain requires a slower speed Check driveline when lowering tiller...

Page 18: ...12 Continue with Check Driveline Maximum Length on page 15 30563 Driveline Shortening Figure 1 6 Check Driveline Collapsible Length Refer to Figure 1 6 1 With driveline attached only to the tiller re...

Page 19: ...es not have a lift height limiter make a mark with tape or other means to indicate maximum 24 lift height 5 If needed repeat steps 1 4 until all limits mentioned in step 3 are maintained 6 Start tract...

Page 20: ...ome entangled in rotating components causing serious bodily injury or death Do not engage power take off while hooking up or unhooking the driveline or while someone is standing near the driveline A p...

Page 21: ...he area For contact information see Dig Safe in the Important Safety Information starting on page 1 CAUTION To avoid minor or moderate injury Some tractors are equipped with two power take off speeds...

Page 22: ...ire retainer is caught over end of pin 2 Set Park Stand For Storage WARNING To avoid serious injury or death An unsupported parked tiller can tip over Always use park stand and or support blocks to pr...

Page 23: ...hold while pulling driveline yoke from tractor power take off shaft 5 Remove upper 3 point hitch pin keeper 6 and hitch pin 5 from the tiller s upper center hitch 6 Remove linchpins 4 and slide lower...

Page 24: ...tractor cut the driveline to proper length run in the clutch and gone through the Operating Checklist If you have missed any of these steps please complete them before proceeding Now that you have pro...

Page 25: ...support blocks under the tiller not under the skid shoes 4 Start tractor and lower tiller onto the support blocks 5 Shut tractor down before dismounting using Tractor Shutdown Procedure on page 8 6 T...

Page 26: ...should be off the ground by several inches 3 Shut tractor down before dismounting using Tractor Shutdown Procedure on page 8 4 Remove wire retaining pin 6 bolt 4 and locknut 5 5 Remove bolts 3 and loc...

Page 27: ...plement with other brands Other brands may not fit properly or meet OEM Original Equipment Manufacturer specifications They can weaken the integrity and impair the safety function performance and life...

Page 28: ...ure 4 3 5 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 disk and plate are still aligne...

Page 29: ...hing 5 is replaced in the same location as when removed Install bolts 3 through end plates and intermediate plates as shown Place springs 2 over each bolt and secure with nuts 1 Clutch Spring Length F...

Page 30: ...nt is worn or scratched to prevent rust Ask your Land Pride dealer for aerosol touch up paint They are also available in touch up bottles with brush quarts and gallon sizes by adding TU QT or GL to th...

Page 31: ...he tractor and slide apart Clean and coat the inner profile of the driveline with a light film of grease and then reassemble Type of grease Multi Purpose Quantity Coat Generously 8 Hours 20 Hours 50 H...

Page 32: ...urface Shut tractor down before dismounting using Tractor Shutdown Procedure on page 8 2 Remove bolts 5 lock washers 6 and gear case cover 1 Drain oil into a container that is appropriate for collecti...

Page 33: ...lugs when done Change Gearbox Oil 1 Change gearbox oil every 100 hrs of operation or when oil becomes dirty whichever comes first 2 Drain oil into a container that is appropriate for collecting oil Re...

Page 34: ...mber of flanges on rotor 5 6 7 8 9 10 Number of tines per flange 6 Tine construction Alloy steel heat treated C shaped blades Rotor rotation Reverse rotation Rotor swing diameter 17 Rotor shaft speed...

Page 35: ...10 Number of tines per flange 6 Tine construction Alloy steel heat treated C shaped blades Rotor rotation Forward rotation Rotor swing diameter 17 Rotor shaft speed 211 rpm at 540 rpm power take off...

Page 36: ...ustments Formed and reinforced rear deflector Keeps dirt in and leaves a level finish Forming gives deflector additional strength Adjustable deflector allows for various finish results Front deflector...

Page 37: ...sufficient Tiller is carried by tractor Tractor has insufficient power Skid shoes need adjusting Tines are worn or bent Tines are incorrectly installed Obstacles are entangled in tines and or rotor Lo...

Page 38: ...5 115 240 180 335 245 5 8 18 150 110 230 170 325 240 M18 X 2 5 195 145 310 230 405 300 3 4 10 235 170 360 265 510 375 M18 X 1 5 220 165 350 260 485 355 3 4 16 260 190 405 295 570 420 M20 X 2 5 280 205...

Page 39: ...sed for a purpose for which the product is not designed Misuse also specifically includes failure to properly maintain oil levels grease points and driveline shafts Claims under this Warranty should b...

Page 40: ...Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA www landpride com...

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