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Section 9: Torque Values Chart 

Table of Contents

RCR1242, RCR1248, RCR1260 & RCR1272 Rotary Cutter 326-047M

2/7/20

36

Section 9: Torque Values Chart

Torque Values Chart for Common Bolt Sizes

Bolt Head Identification

Bolt Head Identification

Bolt Size 

(inches)

Grade 2

Grade 5

Grade 8

Bolt Size

(Metric)

Class 5.8

Class 8.8

Class 10.9

in-tpi

 1

N · m 

2

ft-lb 

3

N · m

ft-lb

N · m

ft-lb

mm x pitch 

4

N · m

ft-lb

N · m

ft-lb

N · m

ft-lb

1/4" - 20

7.4

5.6

11

8

16

12

M 5 X 0.8

4

3

6

5

9

7

1/4" - 28

8.5

6

13

10

18

14

M 6 X 1

7

5

11

8

15

11

5/16" - 18

15

11

24

17

33

25

M 8 X 1.25

17

12

26

19

36

27

5/16" - 24

17

13

26

19

37

27

M 8 X 1

18

13

28

21

39

29

3/8" - 16

27

20

42

31

59

44

M10 X 1.5

33

24

52

39

72

53

3/8" - 24

31

22

47

35

67

49

M10 X 0.75

39

29

61

45

85

62

7/16" - 14

43

32

67

49

95

70

M12 X 1.75

58

42

91

67

125

93

7/16" - 20

49

36

75

55

105

78

M12 X 1.5

60

44

95

70

130

97

1/2" - 13

66

49

105

76

145

105

M12 X 1

90

66

105

77

145

105

1/2" - 20

75

55

115

85

165

120

M14 X 2

92

68

145

105

200

150

9/16" - 12

95

70

150

110

210

155

M14 X 1.5

99

73

155

115

215

160

9/16" - 18

105

79

165

120

235

170

M16 X 2

145

105

225

165

315

230

5/8" - 11

130

97

205

150

285

210

M16 X 1.5

155

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

440

325

610

450

7/8" - 9

225

165

585

430

820

605

M20 X 1.5

310

230

650

480

900

665

7/8" - 14

250

185

640

475

905

670

M24 X 3

480

355

760

560

1050

780

1" - 8

340

250

875

645

1230

910

M24 X 2

525

390

830

610

1150

845

1" - 12

370

275

955

705

1350

995

M30 X 3.5

960

705

1510

1120

2100

1550

1-1/8" - 7

480

355

1080

795

1750

1290

M30 X 2

1060

785

1680

1240

2320

1710

1-1/8" - 12

540

395

1210

890

1960

1440

M36 X 3.5

1730

1270

2650

1950

3660

2700

1-1/4" - 7

680

500

1520

1120

2460

1820

M36 X 2

1880

1380

2960

2190

4100

3220

1-1/4" - 12

750

555

1680

1240

2730

2010

1

 in-tpi = nominal thread diameter in inches-threads per inch

1-3/8" - 6

890

655

1990

1470

3230

2380

2

 N· m = newton-meters

1-3/8" - 12

1010

745

2270

1670

3680

2710

3

 ft-lb= foot pounds

1-1/2" - 6

1180

870

2640

1950

4290

3160

mm x pitch = nominal thread diameter in millimeters x thread 

pitch

1-1/2" - 12

1330

980

2970

2190

4820

3560

Torque tol 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.

Additional Torque Values

Blade Bolt Locknut

450 ft

-

lbs

Blade Carrier Hub Nut 

450 ft

-

lbs Minimum

5.8

8.8

10.9

Содержание RCR1242

Страница 1: ...nch or Spanish Language please see your Land Pride dealer Read the Operator s Manual 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 Cutter RCR1242 RCR1248 RCR1260 RCR1272 326 047M Operator s Manual Printed 2 7 20 30287 ...

Страница 2: ...ly ordered 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 manual with the Option s weight and measurements Dealer Contact Information Model Number Serial Number Machine Height Machine Length Machine Width Machine Weight Delivery Date First Operation Access...

Страница 3: ... 10 Front Rubber Deflector Assembly 10 Hitch Tailwheel Assembly 10 Driveline Installation 12 Gearbox Vented Plug 13 3 Point Hook Up 14 Driveline Hook Up 15 Check Driveline Collapsible Length 16 Reassemble Driveline 16 Check Driveline Interference 17 Section 2 Accessories 18 Replaceable Skid Shoes Accessory 18 Section 3 Adjustments 19 Deck Leveling Cutting Height 19 Deck Leveling Left to Right 19 C...

Страница 4: ...ate 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 products Refer to Parts Manual QR Locator on this page for detailed instructions Table of Contents 2 7 20 RCR1242 RCR1248 RCR1260 RCR1272 Rotary Cutter 326 047M See previous page for Table of Contents ...

Страница 5: ...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 operation is you best insurance against an accident All operators no matter how much experience they may have should carefully read this manual and other related manuals before operating the power machine and t...

Страница 6: ...ging can be dangerous and must be performed by trained personnel using the correct tools and equipment Always maintain correct tire pressure Do not inflate tires above recommended pressures shown in the Operator s Manual When inflating tires use a clip on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly Use a safety cage if availa...

Страница 7: ...ht Use the Slow Moving Vehicle SMV sign when on public roads Flashing warning lights and turn signals are recommended whenever driving on public roads Avoid High Pressure Fluids Escaping fluid under pressure can penetrate the skin causing serious injury Relieve all residual pressure before disconnecting hydraulic lines or performing work on the hydraulic system Make sure all hydraulic fluid connec...

Страница 8: ...ca particles This dust can cause serious injury to the lungs silicosis There are guidelines which should be followed if crystalline silica quartz is present in the dust Be aware of and follow OSHA or other local State or Federal guidelines for exposure to airborne crystalline silica Know the work operations where exposure to crystalline silica may occur Participate in air monitoring or training pr...

Страница 9: ...Important Safety Information 2 7 20 5 This page left blank intentionally ...

Страница 10: ...r dealer locator at www landpride com 3 Some new equipment installed during repair requires safety labels to be affixed to the replaced component as specified by Land Pride When ordering new components make sure the correct safety labels are included in the request 4 Refer to this section for proper label placement To install new labels a Clean surface area where label is to be placed b Spray soap...

Страница 11: ...ts RCR1242 RCR1248 RCR1260 RCR1272 Rotary Cutter 326 047M 2 7 20 7 30287 30287 30287 30287 818 543C Danger Guard Missing Hazard 818 556C Danger Thrown Object Hazard 818 555C Danger Rotating Blades Hazard 818 142C Danger Rotating Driveline Hazard ...

Страница 12: ...248 RCR1260 RCR1272 Rotary Cutter 326 047M 2 7 20 8 818 540C Danger Guard Missing Hazard 818 552C Danger Rotating Driveline Hazard 30515 30299 30370 30370 848 088C Danger Guard Missing Hazard Located beneath rear guard 858 095C 2 x 4 1 2 Red Reflector 2 places ...

Страница 13: ... to ensure operating safety High blade tip speeds assure a clean cut in a variety of field conditions The standard stump jumper slides over stumps rocks and debris and safety guards keep you up and running See Specifications Capacities on page 32 and Features Benefits on page 34 for additional information and performance enhancing options Using This Manual This Operator s Manual is designed to hel...

Страница 14: ...und If preferred the front rubber deflector may be installed before lowering deck down to the ground Hardware Torque Requirements Refer to TorqueValues Chart for Common Bolt Sizes on page 36 to determine the correct torque value when tighten hardware during assembly IMPORTANT Be sure to retain all uncrating hardware for Assembly and Set up Front Rubber Guard Assembly Figure 1 1 Front Rubber Deflec...

Страница 15: ...tors with a Cat I 3 point hitch cannot lift cutter high enough for transporting or is not heavy enough in the front to properly lift the cutter If your are experiencing this problem attach A frame bars 6 and hitch pins 20 in lower 3 point mounting holes B 11 Rotate A frame floating top hitch 6 24 up and rotate left rear brace 5 up as follows a Refer to Detail A If attaching cutter to a 3 point Cat...

Страница 16: ... take off shaft causing possible damage to shaft and driveline It will also defeat the purpose of the tractor s power take off shield WARNING To avoid serious injury or death Always disengage power take off put tractor in park or set park brake shut tractor engine off remove ignition key and wait for blades to come to a complete stop before dismounting tractor Select a safe ground speed when trans...

Страница 17: ...nstall snap ring 1 onto the gearbox input shaft groove Discard snap ring if driveline has a slip clutch 8 Reinstall access covers 4 9 Raise driveline 5 up and rotate driveline hook 6 down 10 Lower driveline 5 until resting in driveline hook 6 11 Continue with 3 Point Hook Up on page 14 NOTE Snap ring 1 is for extra security should driveline shear bolt 2 break Do not use snap ring with a slip clutc...

Страница 18: ...in holes to lock lower 3 point arms into position Linchpins are supplied by customer 4 Connect top center 3 point link to upper hitch pin holes using factory supplied 3 4 clevis pin 3 Secure clevis pin with hairpin cotter 4 5 Ensure tractor lower hitch arms are blocked to prevent excessive side movement NOTE Land Pride s Quick Hitch can be attached to the tractor to provide quick and easy 3 point ...

Страница 19: ...more than one tractor or if a Quick Hitch is used IMPORTANT Drivelines with friction clutches must go through a run in prior to initial use and after long periods of inactivity For detailed instructions see Slip Clutch Protected Driveline on page 25 IMPORTANT Check driveline minimum collapsible length before completing Driveline Hook Up Structural damage to the tractor and implement can occur if t...

Страница 20: ...off shaft and gearbox input shaft must be aligned and level with each other when checking driveline minimum length A driveline that is too long can damage tractor and implement Driveline Shortening Figure 1 9 Refer to Figure 1 9 7 If dimension A was less than 1 shorten driveline as follows a Measure 1 B1 dimension back from outer driveline shield and make a mark at this location on the inner drive...

Страница 21: ...ame If there is an interference a Back implement over the support blocks and lower it onto the blocks b Shut tractor down before dismounting Refer to Tractor Shutdown Procedure on page 22 c Move or remove drawbar if it interferes with the implement and make any other necessary corrections d Repeat steps 1 2 to verify the implement does not interfere with the tractor 3 Start tractor raise implement...

Страница 22: ...1260 and RCR1272 to extend the wear life of the cutter built in skids See your nearest Land Pride dealer to order skid shoes 1 Attach skid shoes 1 to the cutter s side panels with 3 8 plow bolts 2 and 3 8 hex flange locknuts 3 as shown in Figure 2 1 Tighten locknuts to the correct torque 2 Once installed check skid shoes and plow bolts for wear frequently and replace as needed RCR1260 RCR1272 Skid...

Страница 23: ... point control lever to lower cutter until the tailwheel makes contact with the ground surface 3 Place a level on the front of the cutter deck as shown in Figure 3 1 Manually adjust either one or both of the tractor s lower 3 point arms to level the deck from left to right Some tractors have only a single adjusting arm Deck Leveling Figure 3 1 Cutting Height Adjustment Figure 3 2 WARNING To avoid ...

Страница 24: ...to his or her preference Lengthening center 3 point link allows more movement while going over raised surfaces Shortening the link allows more movement while crossing over ditches Also shortening center link allows the cutter to be carried higher while traveling Never length center link to where the cutter is carried too low Tailwheel Height Adjustment Figure 3 4 Tailwheel Height Adjustment Refer ...

Страница 25: ...all required adjustments Refer to Section 3 Adjustments 19 Lubricate cutter and driveline as needed Refer to Lubrication Points 29 Make sure all gearboxes are properly lubricated and that all oil plugs have been replaced properly Refer to Gearbox lubrication 30 Check cutter initially and periodically for loose bolts and pins Refer to Torque Values Chart 36 7 Carefully raise and lower implement to ...

Страница 26: ...n over etc A rotating driveline must not exceed an angle of 25 degrees up or down and never engage a driveline while at an angle exceeding 25 degrees up or down The driveline can break and send projectiles Do not operate a broken or bent driveline Such a driveline will break apart while rotating at high speeds and can cause serious injury or death Always remove the implement from use until the dam...

Страница 27: ...peed until engine idle speed is reached and then disengage power take off 2 Engage tractor park brake shut tractor engine off and remove switch key Stay on tractor until blades have come to a complete stop Field Operation DANGER To avoid serious injury or death Clear area to be cut of debris and other unforeseen removable objects before cutting Mark non removable hazards such as tree stumps post s...

Страница 28: ...ould now be ready to transport to your cutting site at a safe ground speed On roadways transport in such a manner that faster moving vehicles can easily see you and pass you safely Reduce your speed when traveling over rough and hilly terrain Avoid quick or sharp steering corrections Take extra care to ensure that the mower doesn t come into contact with obstacles such as trees buildings or fences...

Страница 29: ...actor power take off damage Shear Bolt Nut Jam Nut Part Numbers Part No Part Description 802 264C HHCS 1 2 13X3 1 2 GR2 803 020C NUT HEX 1 2 13 PLT 803 036C NUT HEX JAM 1 2 13 PLT Clutch Run In The clutch must be capable of slippage during operation to protect gearbox driveline and other drive train parts Friction clutches should be run in prior to initial operation and after long periods of inact...

Страница 30: ... Figure 5 3 Cutter Blade Maintenance DANGER To avoid serious injury or death Always disconnect driveline from power take off shaft before servicing underside of cutter The tractor can be started with power take off engaged Always secure equipment with solid non concrete supports before working under it Never go under equipment supported by concrete blocks or hydraulics Concrete can break hydraulic...

Страница 31: ...ting edge leading Airfoil lift must be oriented towards the top of the deck Refer to Figure 5 4 WARNING To avoid serious injury or death A locknut that has been removed can lose its thread locking properties Reusing a used locknut can result in a thrown blade Always use a new locknut when installing blades 8 Insert blade bolt 1 through blade 6 dish pan 4 and flat washer 2 Secure blade with a new l...

Страница 32: ... parts and adjust or replace as needed 4 Repaint parts where paint is worn or scratched to prevent rust Ask your dealer for Land Pride aerosol touch up paint Paint is also available in touch up bottles with brush quarts and gallon sizes by adding TU QT or GL to the end of the aerosol part number 5 Replace all damaged or missing decals 6 Be certain to purge gauge wheel spindle tube with grease to k...

Страница 33: ...l Hub The gauge wheel hub is equipped with a relief hole located directly opposite the grease fitting The relief hole releases pressure from inside the hub casting when it is greased The hub should be greased until grease purges from the relief hole Type of Lubrication Multi purpose Grease Quantity Until grease purges from the relief hole Lubrication Points 8 Hours 8 Hours 50 Hrs Multi purpose spr...

Страница 34: ... flows out of rear plug hole Reinstall and tighten rear oil plug 2 and top vented plug 1 Type of Lubrication 80 90W EP Gear Lube Quantity Fill until oil begins to flow out rear plug hole in gearbox NOTE Do not overfill Cutter should be level when checking oil Oil expands when hot therefore always check oil level when cold 8 Hours 30300 Do Not Overfill NOTE Use a suction or siphon pump to drain gea...

Страница 35: ... Profiles Quantity Clean coat the inner tube of the driveline with a light film of Multi purpose Grease and then reassemble Driveline Shield Bearings Type of Lubrication Multi purpose Grease Quantity 6 pumps 8 Hours 20 Hours Driveline U Joints Type of Lubrication Multi purpose Grease Quantity 6 pumps 8 Hours 30561 30561 30303 ...

Страница 36: ...r Take Off Speed 540 rpm Gearbox Rating Horsepower 60 hp 44 7 kw Gearbox Speed up beveled gears 1 1 93 Speed up Cast iron housing 1 1 47 Speed up Cast iron housing Gearbox Lubrication Capacity 1 9 Pint 9 L With new Comer gearboxes 1 1 Pint 0 52 L of gear lube 80 90W EP Deck Construction 1 Piece reinforced deck 2 Piece reinforced deck Deck Material Thickness 12 Gauge 2 7 mm Skids 12 Gauge 2 7 mm Fo...

Страница 37: ...47M 2 7 20 33 30320 RCR1245 83 2 11 m RCR1248 89 1 8 2 26 m RCR1260 97 3 4 2 48 m RCR1272 110 2 79 m RCR1242 45 1 8 1 15 m RCR1248 40 3 4 1 04 m RCR1260 44 1 4 1 12 m RCR1272 44 1 8 1 12 m RCR1245 45 1 4 1 15 m RCR1248 53 5 8 1 36 m RCR1260 64 1 4 1 63 m RCR1272 76 1 2 1 94 m 15 7 8 40 3 cm 9 22 9 cm SHOWN ...

Страница 38: ...ft leverage for smaller tractors Round back design Helps discharge grass better than enclosed or partially enclosed cutters 1 1 4 10 Cutting Height Cutting height for wide range of cutting conditions Skid shoes Accessory RCR1260 RCR1272 only Provides sidewall reinforcement and helps protect bottom of sidewall 1 2 x 3 Heat treated free swinging blades Free swinging protects from obstructions Heat t...

Страница 39: ...g tube wearing Needs lubrication Lubricate every 20 hours Blades wearing excessively Cutting on sandy ground Raise cutting height Contacting ground frequently Raise cutting height Blades breaking Hitting solid objects Avoid hitting solid objects Blades coming loose Blades not tightened properly Tighten blade hardware refer to Cutter Blade Maintenance on page 26 Not using new nut when replacing bla...

Страница 40: ... 205 150 285 210 M16 X 1 5 155 115 240 180 335 245 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 5 280 205 440 325 610 450 7 8 9 225 165 585 430 820 605 M20 X 1 5 310 230 650 480 900 665 7 8 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780 1 8 340 250 875 645 1230 9...

Страница 41: ...roduct is not designed Misuse also specifically includes failure to properly maintain oil levels grease points and driveline shafts Claims under this Warranty should be made to the dealer which originally sold the product and all warranty adjustments must be made through an authorized Land Pride dealer Land Pride reserves the right to make changes in materials or design of the product at any time ...

Страница 42: ...Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA www landpride com ...

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