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Section 9: Torque Values Chart

SC2660 & SC2672 Skid Steer Rotary Cutter   326-025M

4/24/12

Table of Contents

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

Wheel Hub Stub 1/2"-20x1 5/8Gr 5

85 ft-lbs.

Blade Bolt Lock Nut

450 ft-lbs

Blade Carrier Hub Nut

450 ft-lbs

Section 9: Torque Values Chart

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 SC2660

Page 1: ...r 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 Table of Contents SC2660 SC2672 Skid Steer Rotary Cutter 326 025M 24538 Operator s Manual 4 24 12 ...

Page 2: ...y 9 SC2660 Motor And Hose Assembly 10 SC2672 Motor And Hose Assembly 10 SC2672 Vented Dipstick 10 Hitch Hook Up 11 Hydraulic Hose Hook up 11 Gauge Wheel Assembly Optional 12 Skid Shoe Assembly Optional 13 Operator Protective Door Optional 13 Section 2 Adjustments 14 Hitch Positioning 14 Hitch Mounted Offset 14 Hitch Mounted Centered 14 Height Adjustment Safety Chain 15 Deck Leveling with Optional ...

Page 3: ...y read 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 Indica...

Page 4: ...he is taking over the counter drugs seek medical advise on whether he can safely operate the equipment Start loader with steering levers and hydraulic controls in neutral Keep bystanders away Always contact your local utility companies electrical telephone gas water sewer and others before digging so that they may mark the location of any under ground services in the area Be sure to ask how close ...

Page 5: ... you to stand to one side and NOT in front of or over the tire assembly Use a safety cage if available When removing and installing wheels use wheel handling equipment adequate for the weight involved Avoid High Pressure Fluids Hazard Escaping fluid under pressure can penetrate the skin causing serious injury Avoid the hazard by relieving pressure before disconnecting hydraulic lines or performing...

Page 6: ...er locator at 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 the area the label is to be placed b Spray soapy water on the s...

Page 7: ...er 326 025M Table of Contents 818 830C Safety Combo Danger Keep Hands Feet Away Danger Thrown Object Hazard Danger Rotating Blade Hazard Warning General Safety Notice Read Manual Observe Safety Messages 24538 Model SC2660 24538 Model SC2672 25777 818 831C Warning High Pressure ...

Page 8: ...Skid Steer Rotary Cutter 326 025M 4 24 12 Table of Contents ROTATING DRIVELINE KEEP AWAY 818 543C Danger Guard Missing SC2672 Only 818 552C Danger Rotating Driveline SC2672 Only 818 798C Warning Pinch Point Hazard 3 Places 24539 24539 25777 25777 ...

Page 9: ...get years of satisfactory use from the machine Application The SC2660 and SC2672 Series Skid Steer Rotary Cutters are built and designed by Land Pride for cutting on gently sloping or slightly contoured right of ways pastures set aside acres and row crop fields These skid steer mounted cutters provide unparalleled access to tightly restricted areas such as under fences in and around boxed in corne...

Page 10: ...the spaces provided above and again on warranty page 33 Always provide model number and serial number when ordering parts and in all correspondences with your Land Pride dealer Refer to Figure 1 for location of your serial number plate Serial Number Plate Location Figure 1 24539 Manual Storage Tube Further Assistance Your dealer wants you to be satisfied with your new Rotary Cutter If for any reas...

Page 11: ...or the assembly task Auxiliary weights depending on Skid Steer size Have a minimum of 2 people at hand while assembling Safety decals are legible and undamaged Loose parts bag box shipped with the Rotary Cutter IMPORTANT Skid Steer must be equipped with a case drain system Read and understand the operator s manual for your cutter An understanding of how it works will aid in the assembly and setup ...

Page 12: ... matches your Skid Steer s GPM rating Skip assembly instructions below if the motor GPM rating matches your Skid Steer See Motor and Hose Assembly on page 21 to properly select a motor that matches your Skid Steer 24545 Decal Location Stating Motor GPM Rating Refer to Figure 1 3 1 Remove fasteners 9 10 and coupling guard 8 Keep fasteners and coupling guard for reassembly of new motor 2 Remove fast...

Page 13: ...pler See Optional Case Drain Coupling on page 22 11 Connect case drain hose to reservoir outlet 12 Connect male and female couplers on the hydraulic motor hoses to the Skid Steer high pressure outlets 13 Operate skid steer to check blade rotation Cutter blades should rotate clockwise when looking at the blades from above If cutter blades are rotating counterclockwise switch male and female coupler...

Page 14: ...ing holes are not in alignment loosen remaining chain guard bolts and realign chain guard as follows a Realign chain guard by inserting drift punches in the outer two gauge wheel mounting holes Tap punches in with a hammer until secure Do not remove punches at this time b Insert 3 8 16 x 3 lg GR5 bolts 2 with 3 8 flat washers 6 through the two inside holes Secure bolts with 3 8 whiz nuts 5 Tighten...

Page 15: ...left deck corner as shown with 3 8 16 x 1 1 4 GR5 plow bolts 2 flat washers 6 lock washers 5 and 3 8 lock nuts 4 Torque lock nuts 4 to 31 ft lbs 4 Install long skid shoes 1 to the remaining three deck corners with 3 8 16X1 1 4 GR5 plow bolts 2 flat washers 6 lock washers 5 and 3 8 lock nuts 4 Torque lock nuts 4 to 31 ft lbs 5 Raise cutter up and remove support blocks Operator Protective Door Optio...

Page 16: ...ter pin to secure them in place 5 Attach Floating Chains 4 to hitch plate lugs at positions marked B1 with chain pins 5 6 Insert cotter pins 2 through chain pin holes and bend one or both legs of each cotter pin to secure them in place Hitch Mounted Centered 1 Drive roll pins 7 through one of two holes in both pivot pins 8 2 Align hitch pivot pin bushings 3 with cutter mounting lug holes A2 3 Inse...

Page 17: ...utting Height Figure 2 2 16 1 2 Maximum Lift Gauge Wheel Ratchet Jack Skid Steer Lower Hitch Loop Ground Level Bottom of Rear Skid Shoes 24586 Quick Link Coupler Cutter Hitch Plate Height Adjustment Safety Chain Refer to Figure 2 2 For safety the cutter rear skid shoes should not be raised higher than 16 1 2 off the ground 18 Maximum cutting height 1 Raise cutter s rear skid shoes slightly less th...

Page 18: ...tom of skid shoe at the front deck corner is dimension A off the ground and the rear deck corner is slightly higher off the ground than the front deck corner 4 Adjust ratchet jack to lower gauge wheel until it is at ground level 5 With gauge wheel at ground level use Skid Steer hydraulics to adjust cutter hitch plate angle until the float chain sags CAUTION Do Not over angle hitch plate forward Ov...

Page 19: ...kid Steer with cutter on a level surface 2 Use Skid Steer hydraulics to lower Skid Steer lift arms and to tilt cutter hitch plate angle until bottom of skid shoe at the front deck corner is dimension A off the ground and the rear deck corner is slightly higher than the front deck corner The Rotary Cutter should be operated with float chain tight to hold front of cutter at the correct cutting heigh...

Page 20: ... hoses for wear damage and hydraulic leaks Replace damaged and worn hoses with genuine Land Pride parts Page 3 Grease all fittings Refer to Lubrication Page 26 Check the Rotary Cutter initially and periodically for loose bolts pins Torque Values Chart Page 32 DANGER Do not operator the cutter with cutting blades raised higher than 18 off the ground Always use the height adjusting safety chain to l...

Page 21: ... and or break them NOTE Your cutter is equipped with free swinging cutting blades to reduce shock loads to the cutter when striking an obstacle 2 Set Skid Steer hydraulic lift arms and hitch angle to position the deck front at the preferred cutting height and the deck rear slightly higher 3 If included adjust gauge wheel to support deck front at the preferred height and tilt hitch plate to put sla...

Page 22: ...Cutter Operating Instructions Assuming all systems with the Skid Steer are go and fully functioning it is time to connect to the SC2660 or SC2672 Rotary Cutter This is done by maneuvering the Skid Steer mounting plate into position under the universal quick mount hitch saddle Once this is accomplished and the mower is fully supported by the Skid Steer lift arms lower mower to a point approximately...

Page 23: ...ilable The standard skid shoe bundle is constructed of 1 4 x 2 flat bar and the heavy skid shoe bundle is constructed of 3 8 x 3 flat bar The heavy skid shoes will wear longer and withstand more abuse Motor and Hose Assembly Refer to Figure 4 3 Low Volume Motor Hoses Assy 326 013A Medium Volume Motor Hoses Assy 326 014A High Volume Motor Hoses Assy 326 015A There are three motor and hose assembly ...

Page 24: ...that will mate with some Skid Steer case drain couplings Case drain couplings of other sizes will need to be purchased from another source by the customer Operator Protective Door Refer to Figure 4 6 Land Pride s Protective Door Kit 326 024A The Skid Steer MUST be equipped with an Operator Protective Door for shielding against flying debri when attached to a Rotary Cutter Land Pride offers a unive...

Page 25: ...r try to straighten a bent blade Small nicks can be ground out when sharpening 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 premature bearing wear breakage and or structural cracks in gearbox and or deck Remove cutting blades and sharpen or r...

Page 26: ...der the cutter Make sure the support blocks are positioned so they will not interfere with skid shoe installation 2 Lower cutter onto the support blocks place Skid Steer in park set park brakes shut the Skid Steer off and remove switch key 3 Remove 3 8 hex lock nuts 4 lock washers 5 flat washers 6 3 8 plow bolts 3 three skid shoes 1 and one skid shoe 2 from all four deck corners 4 Plow bolts shoul...

Page 27: ...13C WASHER LOCK SPRING 3 8 PLT 6 804 012C WASHER FLAT 3 8 SAE PLT Long Term Storage DANGER Do not modify the Rotary Cutter without authorization from Land Pride Unauthorized modifications to the cutter can result in the cutter not performing properly and or cause serious injury or death DANGER Always secure cutter deck in the up position with solid supports before servicing underside of cutter Nev...

Page 28: ...ubrication Multi purpose Grease Quantity As required 24539 24549 25 Hours 25 Hours 24549 Gauge Wheel Spindle Axle Hub 1 Zerk Type of Lubrication Multi purpose Grease Quantity As required 25 Hours 24549 Lubrication Points 25 Multi purpose spray lube Multi purpose grease lube Intervals in hours at which lubrication is required Lubrication Legend Multi purpose oil lube Axle Hub Bearing 1 Zerk Type of...

Page 29: ... Only The motor spindle hub 1 has two cavity plugs 2 located on the hitch side of the hub housing 1 Disengage blade hydraulics Make sure blades have come to a complete stop 2 Disconnect float chains from cutter deck at mounting holes A See Figure 2 3 on page 16 3 Disconnect height adjustment safety chain from front of loader See Figure 2 3 on page 16 4 Raise front of cutter off the ground and tilt...

Page 30: ...Motor 17 21 gpm flow High Volume Drive Motor 22 27 gpm flow Hydraulic Pressure 1500 to 3500 psi Deck Thickness Upper Deck 16 Ga Lower Deck 10 Ga Side Skirt Construction 1 4 Steel Deck Wear Protection Optional Optional four corner mounted skid shoes Skid Shoes Construction Optional Standard duty skid shoes 1 4 x 2 steel Heavy duty skid shoes 3 8 x 3 steel Dishpan Heavy duty round pan stump jumper B...

Page 31: ...29 Section 6 Specifications Capacities 4 24 12 SC2660 SC2672 Skid Steer Rotary Cutter 326 025M Table of Contents 26819 ...

Page 32: ...uces flying debris Optional Replaceable Skid Shoes Protect side plate structure Shoes are replaceable for convenience Splined Blade Bar Allows for tight positive fit of stump jumper and blade bar to motor output shaft 3 16 Round Stump Jumper Standard stump jumper aids in sliding over obstructions which helps protect gearbox output shaft 1 2 x 4 Heat treated Free Swinging Blades Heat treated blades...

Page 33: ...Blade bolts not tightened properly Torque blade bolt nuts to 450 ft lbs Blade carrier becomes loose Running loose in the past Replace gearbox output shaft and blade carrier Blade carrier hardware not tight enough Tighten to specified torque Blade bolt holes worn Blade hardware running loose Replace blades and blade bolts if worn Blades breaking Hitting solid objects Thoroughly check the cutting ar...

Page 34: ...60 190 405 295 570 420 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 ...

Page 35: ...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 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 change...

Page 36: ...Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA www landpride com ...

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