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Section 8: Torque Values Chart

RCR1884 Series Rotary Cutter   312-880M

2/03/12

Table of Contents

Section 8: Torque Values Chart

Torque Values Chart for Common Bolt Sizes

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

l215

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

4

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 Lock Nut

450 ft-lbs

Blade Carrier Hub Nut

450 ft-lbs minimum

Grade 2

Grade 5

Grade 8

Bolt Head Identification

Bolt Size

(Inches)

Class 5.8

Class 8.8

Class 10.9

Bolt Head Identification

Bolt Size

(Metric)

5.8

8.8

10.9

Summary of Contents for Rotary Cutters RCR1884

Page 1: ...d unit 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 Copyright 2012 Printed 24584 312 880M RCR1884 Series Rotary Cutter Operator s Manual 2 03 12 ...

Page 2: ...ingle Tailwheel Assembly 14 Dual Tailwheel Assembly 15 Front Guard Assembly 16 Front Rubber Guard Installation 16 Front Chain Guard Installation Optional 16 Rear Guard Assembly 17 Rear Metal Deflector Assembly 17 Rear Chain Guard Installation Optional 17 Section 2 Adjustments 18 Deck Leveling Height Adjustments 18 Deck Leveling From Left to Right 18 Deck Leveling From Front to Rear 18 Center 3 Poi...

Page 3: ...ead the message that follows it In addition to design and configuration of equipment hazard control and accident prevention are dependent upon the awareness concern prudence and proper training of personnel involved in the operation transport maintenance and storage of equipment Be Aware of Signal Words A Signal word designates a degree or level of hazard seriousness The signal words are Indicates...

Page 4: ...properly Remove buildup of grease oil or debris Remove all tools and unused parts from implement before operation Use A Safety Chain A safety chain will help control drawn machinery should it separate from the tractor drawbar Use a chain with the strength rating equal to or greater than the gross weight of the towed machinery Attach the chain to the tractor drawbar support or other specified ancho...

Page 5: ...aper or cardboard NOT BODY PARTS to check for suspected leaks Wear protective gloves and safety glasses or goggles when working with hydraulic systems If an accident occurs see a doctor immediately Any fluid injected into the skin must be treated within a few hours or gangrene may result Keep Riders Off Machinery Riders obstruct the operator s view they could be struck by foreign objects or thrown...

Page 6: ...or visit our dealer locator at landpride com 3 Some new equipment installed during repair requires safety labels to be affixed to the replaced component as 818 543C Danger Guard Missing 24584 24651 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 the ...

Page 7: ...nformation 2 03 12 RCR1884 Series Rotary Cutter 312 880M Table of Contents 818 540C Danger Guard Missing 818 552C Danger Rotating Driveline ROTATING DRIVELINE KEEP AWAY 24597 818 142C Danger Rotating Driveline 24584 24597 ...

Page 8: ...6 Important Safety Information RCR1884 Series Rotary Cutter 312 880M 2 03 12 Table of Contents 818 556C Danger Thrown Object 818 564C Danger Rotating Blades 24584 24584 818 230C Red Reflector 24652 ...

Page 9: ...7 Important Safety Information 2 03 12 RCR1884 Series Rotary Cutter 312 880M Table of Contents 24584 818 830C Safety Combo 818 130C Caution 540 RPM 24584 ...

Page 10: ...er assembly maintenance and safe operating practices will help you get years of satisfactory use from the Rotary Cutter Application Land Pride s RCR1884 Series Rotary Cutter is built and designed by Land Pride for cutting on gentle slopes or slightly contoured right of ways pastures around the farm or around town The 84 cutting width is compatible with maneuverable 45 to 90 horsepower tractors wit...

Page 11: ...ted dipstick See your nearest Land Pride Dealer if dipstick is missing Vent Plug Location Figure 1 1 IMPORTANT Rotary Cutters are shipped with a solid plug in the gearbox to prevent loss of oil during shipping and handling The solid plug on top of the gearbox must be replaced with a vented dipstick Do not operate cutter without vented dipstick installed 30216 DO NOT OVERFILL Oil Level Plug Remove ...

Page 12: ... up snug and then back off 1 4 turn 6 Pivot hinge bars 4 up and insert stop pin 1 in the hinge bars 4 as shown Stop pin must be positioned above the rear hitch braces 3 when completed See Figure 1 2 on page 9 7 Insert 2 cotter pins 12 in the stop pin as shown Secure cotter pins by bending one leg of each cotter pin 45 degrees or more 3 Point Hitch Assembly Refer to Figure 1 3 1 Remove inside linch...

Page 13: ...r hitch link holes 1 in the clevis and aligned with the hitch pins 2 3 Engage tractor park brake shut tractor engine off and remove key before dismounting from tractor 4 Attach lower hitch link holes 1 to the clevises with hitch pins 2 Secure with linch pins 3 5 Connect top center link 4 to the upper hitch 5 with customer supplied clevis pin and linch pin If required start tractor and slowly raise...

Page 14: ...til gearbox shaft is in line level with tractor PTO shaft 2 Support cutter at this height with support jacks or blocks to keep cutter from drifting down 3 Place gear selector in park set park brake shut tractor off and remove switch key 4 It is best if driveline is lubricated before installing Refer to Lubrication Points instructions on page 29 5 Remove rubber protective sleeve 6 from gearbox inpu...

Page 15: ...ge to tractor and cutter Always check driveline collapsed length during initial setup when connecting to a different tractor and when alternating between using a quick hitch and a standard 3 Point hitch More than one driveline may be required to fit all applications 22311 5 Measure from end of inner shield to scribed mark X dimension Cut off inner shield at the mark Cut same amount off the inner s...

Page 16: ...k channel when rear chainguards are included and front mounting holes when rear chainguards are not included 3 Assemble tailwheel adjusting brackets 3 4 to deck rear with four 1 2 13 x 1 1 2 GR5 carriage bolts 5 and 1 2 flange locknuts 8 4 Install shim washer 10 onto yoke spindle 12 and insert spindle into tailwheel arm 2 Install 2nd shim washer 10 onto yoke spindle and secure with roll pin 11 5 A...

Page 17: ... in the rear mounting holes of the deck channel when rear chainguards are included and front mounting holes when rear chainguards are not included 3 Assemble tailwheel adjusting brackets 3 4 to left side of deck using four 1 2 13 x 1 1 2 GR5 carriage bolts 7 and 1 2 flange lock nuts 10 4 Install shim washer 13 onto yoke spindle 15 and insert spindle into tailwheel arm 1 Slide 2nd shim washer 13 on...

Page 18: ...et Front Rubber Guard Installation Refer to Figure 1 9 1 Install center rubber guard 5 with 3 8 x 1 long carriage bolts 4 Secure with 3 8 flange nuts 3 2 Install left and right side rubber guards 2 with 3 8 x 1 long carriage bolts 4 Secure with 3 8 flange nuts 3 3 Tighten all 3 8 flange nuts 2 to 31 ft lbs as indicated in the Torque Values Chart on page 34 Front Chain Guard Installation Optional R...

Page 19: ...oved before the rear chain guard option can be installed Refer to Figure 1 11 1 Unscrew 1 2 whiz nuts 5 and 1 2 hex flange lock nuts 6 Remove rear metal deflector 1 from deck rear 2 Attach carriage bolts 4 with whiz nuts 6 to rear deflector for safe keeping Keep 1 2 x 1 1 2 carriage bolts 3 for reattaching tailwheel vertical support 2 to deck during chain guard installation 3 Store rear deflector ...

Page 20: ...Refer to Figure 2 1 1 Place a Carpenters level on one of the main deck channels Using the tractor s 3 point hydraulic control lever raise or lower the 3 point arms until the deck is slightly lower at the front approximately 1 lower than at the back IMPORTANT The front blade tip should be lower than the rear blade tip If front and rear blades are the same height or if rear blade is lower then the c...

Page 21: ...ail Wheel Height Adjustment Refer to Figure 2 4 The dual tailwheels must be adjusted if cutting height is too high or too low 1 Use tractor s 3 point hydraulic control to lift the tailwheels off the ground 2 Remove 1 2 13 x 3 1 2 GR5 bolts 2 3 Adjust tailwheel 1 up or down to desired cutting height and reinsert 1 2 13 x 3 1 2 GR5 bolts 2 4 Secure 1 2 bolts with 1 2 flange lock nuts 3 Tighten lock ...

Page 22: ...all guards and shields are in place Page 1 Lubricate cutter as needed Refer to Maintenance and Lubrication Page 28 DANGER Keep others away while cutter is operating It can discharge objects at high speeds Therefor the use of front and rear safety guards is strongly recommended when cutting along highways and in areas where people may be present Stop blade rotation if a bystander is within several ...

Page 23: ...With cutter resting on solid supports PTO disengaged and blade rotation completely stopped Check for and remove foreign objects wrapped around blade spindles Check for nicked bent broken and worn cutting blades Replace or sharpen blades as required Refer to Cutter Blade Maintenance on page 25 9 Remove solid supports from under the deck 10 Verify cutter height is set correctly See Deck Leveling Hei...

Page 24: ...ut for debris and unforeseen objects Mark any potential hazards 2 Follow Blade Engagement instructions on this page to start cutter blades turning 3 Optimum ground speed depends on density of material being cut horsepower rating of tractor and terrain Always operate tractor at cutter s full rated PTO speed in a gear range that allows the cutter to make a smooth cut without lugging tractor down usu...

Page 25: ...her vehicle operators when traveling on public roads and in the dark of night Comply with all local state and federal laws It is important that you inspect the area where you will be cutting and clear it of safety hazards and foreign objects either before or after you arrive at the cutting site Never assume the area is clear Cut only in areas you are familiar with and are free of debris and unseen...

Page 26: ...tearing through rubber skirts Front Rubber Guard Refer to Figure 4 1 Part Number Description 312 866A Front Rubber Guard Assembly See Front Rubber Guard Installation on page 16 for proper installation Front Chain Guard Refer to Figure 4 2 Part Number Description 312 869A Front Chain Guard Assembly See Section 1 Assembly and Set Up on page 16 for installation Land Pride offers a rear chain safety g...

Page 27: ...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 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 could contribute to pr...

Page 28: ...any oxidation that may have accumulated on friction surfaces To prevent driveline and gear box damage repeat run in instructions at beginning of each season and when moisture and or condensation seizes inner friction plates WARNING Engage parking brake disengage PTO shut off tractor and remove key before dismounting tractor to make adjustments Refer to Figure 5 3 1 Using a pencil or other marker s...

Page 29: ...rvicing underside of 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 CAUTION Always store cutter with 3 Point hitch pivoted back as far as possible The floating 3 Point hitch when not hooked to a tractor can fall b...

Page 30: ...reaches top mark on dipstick Reinstall vented dipstick and tighten Method 2 Remove side oil plug 2 If oil is below bottom of plug hole add recommended gear lube through top dipstick hole until oil flows out of side plug hole Reinstall and tighten side oil plug 2 and vented dipstick 1 Type of Lubrication 80 90W EP Gear Lube Quantity Fill until oil reaches top mark on dipstick or begins to flows out...

Page 31: ...ubrication Multi purpose Grease Quantity Clean coat the inner tube of the driveline with a light film of grease and then reassemble Driveline U Joints Type of Lubrication Multi purpose Grease Quantity 6 pumps 13755 14618 Driveline Shield Bearings Type of Lubrication Multi purpose Grease Quantity 6 pumps 13755 8 Hours 8 Hours 20 Hours ...

Page 32: ...rbox 1 1 44 Speed Up Beveled Gears with Cast Iron Housing Gearbox Lubrication Capacity Type 7 Pints of 80 90W EP Gear Lube Gear box Input Output Shaft Size Input Shaft 1 3 8 6 Spline Output Shaft 2 Dia Deck Construction All welded deck Deck Material Thickness 10 Ga Skid Construction Standard 1 4 x 2 1 2 welded on Stump Jumper Oval 10 ga Pan Blades 2 1 2 x 4 Heat Treated Alloy Steel Free Swinging H...

Page 33: ...31 Section 5 Specifications Capacities 2 03 12 RCR1884 Series Rotary Cutter 312 880M Table of Contents 27738 ...

Page 34: ...ger rigid deck Fully welded deck Adds additional strength Extended cutter front For increased material flow and added protection Round back design Helps discharge grass better than enclosed or partially enclosed cutter 9 1 2 Deck Height Allows cutter to handle heavy cutting conditions 2 to 11 Cutting height Provides for a wide range of cutting conditions 1 4 x 2 1 2 Full length skid shoes Provides...

Page 35: ...ours 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 25 Improper deck attitude Lower front of deck see page 14 Blade carrier becomes loose Runnin...

Page 36: ...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 ...

Page 37: ...ce or reliability or which has been used 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 must be made to the dealer which originally sold the product and all warranty adjustments must be made through such dealer Land Pride reserves the right to make changes in...

Page 38: ...Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA www landpride com ...

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