Ingersoll-Rand LCA750T Product Maintenance Information Download

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TORQUE CHART

Standard Coarse Thread Torque

Size

SAE Grade 5

SAE Grade 8

Dry

Lubricated

PTFE

Dry

Lubricated

PTFE

1/4-20

8-10

6-7

12-14

9-10

5-6

5/16-18

17-20

13-15

8-9

25-28

18-21

11-13

3/8-16

31-35

23-26

14-16

44-49

33-37

20-22

7/16-14

49-56

37-42

22-25

70-79

52-59

31-36

1/2-13

75-85

57-64

34-38

106-121

80-90

48-54

9/16-12

109-123

82-92

49-55

154-174

115-130

69-78

5/8-11

150-170

113-128

68-77

212-240

159-180

95-108

3/4-10

267-302

200-227

120-136

376-426

282-320

169-192

7/8-9

429-487

322-365

193-219

606-687

455-515

273-309

1-8

644-729

483-547

290-328

909-1030

681-772

409-463

1 1/8-7

794-900

596-675

357-405

1288-1460

966-1095

580-657

1 1/4-7

1121-1270

840-952

504-571

1817-2059

1363-1545

818-927

Standard Fine Thread Torque

Size

SAE Grade 5

SAE Grade 8

Dry

Lubricated

PTFE

Dry

Lubricated

PTFE

1/4-20

10-11

7-8

4-5

14-15

10-12

6-7

5/16-24

19-22

14-16

9-10

27-31

20-23

12-14

3/8-24

35-40

26-30

16-18

49-56

37-42

22-25

7/16-20

55-63

41-47

25-28

78-88

58-66

35-40

1/2-20

85-96

64-72

38-43

120-136

90-102

54-61

9/16-18

121-137

91-103

55-62

171-194

128-146

77-87

5/8-18

170-193

127-144

76-87

240-272

180-204

108-122

3/4-16

297-337

223-253

134-152

420-476

315-357

189-214

7/8-14

474-537

355-403

213-242

669-758

502-568

301-341

1-12

704-798

528-599

317-359

995-1127

746-845

448-507

1 1/8-12

1023-1159

767-869

460-572

1444-1637

1083-1227

650-736

1 1/4-12

1425-1615

1069-1211

641-727

2012-2280

1509-1710

905-1026

Metric Coarse Thread Torque

Size

Class 8.8 / 9.8

Class 10.9

Dry

Lubricated

PTFE

Dry

Lubricated

PTFE

M6x1

9-10

6-7

11-12

8-9

5-6

M8x1.25

21-23

16-18

9-11

26-30

20-22

12-13

M10x1.5

41-47

31-35

19-21

53-60

39-45

24-27

M12x1.75

71-81

54-61

32-36

91-103

68-77

41-46

M14x2

115-130

86-98

52-59

147-166

110-125

66-75

M16x2

165-187

124-140

74-84

227-257

170-193

102-116

M20x2.5

321-364

241-273

144-164

443-502

332-376

199-226

M22x2.5

439-497

329-373

197-224

605-686

454-514

272-309

M24x3

556-630

417-473

250-284

767-869

575-652

345-391

M30x3.5

1103-1250

827-938

496-563

1521-1724

1141-1293

685-776

Metric Fine Thread Torque

Size

Class 8.8 / 9.8

Class 10.9

Dry

Lubricated

PTFE

Dry

Lubricated

PTFE

M8x1

22-25

17-19

10-11

28-32

21-24

13-14

M10x1.25

44-49

33-37

20-22

56-63

42-47

25-28

M12x1.25

78-89

59-67

35-40

100-113

75-85

45-51

M14x1.5

125-141

93-106

56-64

159-180

119-135

72-81

M16x1.5

176-200

132-150

79-90

243-276

183-207

110-124

M18x1.5

257-291

193-219

116-131

355-402

266-302

160-181

M20x1.5

358-406

268-304

161-183

494-559

370-420

222-252

M22x1.5

484-548

363-411

218-247

667-756

500-567

300-340

M24x2

609-690

456-517

274-310

839-951

630-713

378-428

M30x2

1227-1390

920-1043

552-626

1692-1918

1269-1438

761-863

Notes

1. Definitions:

DRY:

Cadmium plate, zinc plate, and oiled fasteners.

LUBRICATED:

Molysulfide paste, carnaba wax, molysulfide grease and

copper-based anti-seize coated fasteners.

PTFE:

2% minimum PTFE (teflon) coated fasteners.

2. All torque values foot-pounds unless noted.

3. SAE grade 5 equivalent to ASTM A325 Type 2 and ASTM A449.

4. SAE grade 8 equivalent to ASTM A354 Grade BD, ASTM A490 Type 1.

5. If mixing fasteners use lowest torque value.

6. Torque values 75 to 85% of fastener proof load ref.

Form MHD56416 Edition 1

Summary of Contents for LCA750T

Page 1: ...Product Maintenance Information Air Chain Hoist Model LCA750T Dwg MHP2986 Save These Instructions Form MHD56416 Edition 2 May 2009 45887577 2009 Ingersoll Rand Company ...

Page 2: ...ace if necessary Observe the action of load chain feeding through hoist Do not operate a hoist unless load chain feeds through hoist and hook block smoothly and without audible clicking or other evidence of binding or malfunctioning 5 Motor If performance is poor disassemble motor and check for wear or damage to bearings and shafts Parts should be cleaned lubricated and reassembled Replace worn or...

Page 3: ...l Rand trained service technician Standard Components 1 year or 1 000 hrs 2 years or 2 000 hrs 3 years or 3 000 hrs 4 years or 4 000 hrs 5 years or 5 000 hrs 6 years or 6 000 hrs 8 years or 8 000 hrs Inspect Motor X X X X Inspect Disc Brake X X X Inspect Gearbox X X X Inspect Controls X X X X Inspect System Housings and Main Frames X X X X Inspect Trolley Motor X X X Inspect Trolley Wheel Assembly...

Page 4: ... NOTES Pass Fail Repair Replace Fasteners Gears Shafts Bearings Load Bearing Sheave Chain Guides Springs Covers Housings Hooks Bottom Actual Hook Throat Width ________ inches ________ mm Refer to Table 3 for minimum maximum acceptable widths Hook Twist maximum 10 Hook Crack Test Method Used Dye Penetrant ________ Magnetic Particle ________ Other ________ Hook Latch Brake 100 Load Test Brake Visual...

Page 5: ...trolley spacing Refer to the manufacturer s literature Air powered trolley does not operate Pendant lever sticking Check lever and restore free movement No air supply to trolley or too little CFM or psi cu m min or bar Check psi bar at trolley inlet Refer to manufacturer s specifications MAINTENANCE WARNING Never perform maintenance on the hoist while it is supporting a load Before performing main...

Page 6: ... should be used when assembling the hoist 6 When grasping a part in a vise always use leather covered or copper covered vise jaws to protect the surface of the part and help prevent distortion This is particularly true of threaded members machined surfaces and housings 7 Do not remove any part which is a press fit in or on a subassembly unless the removal of that part is necessary for repairs or r...

Page 7: ...and brake springs 203 from cover 202 4 Tap piston 204 from brake housing 207 5 Remove O rings 205 and 206 from piston 204 n Hoist Motor Disassembly Refer to Dwg MHP2973 1 Remove capscrews 427 muffler brackets 428 reducer fittings 432 and mufflers 431 from motor housing 429 2 Remove capscrews 555 and lockwashers 440 from control valve assembles 450 Remove control valve assemblies 450 tubes 425 and ...

Page 8: ...epair Use the following procedures to clean inspect and repair the components of the hoist and trolley system n Cleaning CAUTION Bearings that are loose worn or rotate in the housing must be replaced Failure to observe this precaution will result in additional component damage n Inspection All disassembled parts should be inspected to determine their fitness for continued use Pay particular attent...

Page 9: ...nstall spacer 129 followed by seal ring 128 on the outside of bearings Install retainer ring 125 to secure parts 4 Press wheel assemblies onto side plate axles 5 Secure trolley wheels on side plate axles with spacers 127 and retainer rings 126 Trolley 1 Ensure bushings 110 are installed in support 111 and trolley axle 107 2 Install sleeves 109 on trolley axle 107 3 Install supports 111 on trolley ...

Page 10: ...ke and Reduction Gear Installation Refer to Dwgs MHP2971 and MHP2972 1 Lubricate and install O rings 261 and 262 2 Carefully support brake and reduction gear assembly and locate on screw rods 153 3 Secure brake and reduction gear assembly with lockwashers 154 and nuts 115 Refer to TORQUE CHART on page 12 for torque requirements n System Installation 1 Install hook and load chain on hoist 2 Connect...

Page 11: ...t Information Manual for applicable maximum system load capacity Conduct a load test to 125 of the rated system capacity Testing to more than 125 may be necessary to comply with standards and regulations set forth in areas outside of the USA Form MHD56416 Edition 1 11 ...

Page 12: ... 10 9 Dry Lubricated PTFE Dry Lubricated PTFE M6x1 9 10 6 7 4 11 12 8 9 5 6 M8x1 25 21 23 16 18 9 11 26 30 20 22 12 13 M10x1 5 41 47 31 35 19 21 53 60 39 45 24 27 M12x1 75 71 81 54 61 32 36 91 103 68 77 41 46 M14x2 115 130 86 98 52 59 147 166 110 125 66 75 M16x2 165 187 124 140 74 84 227 257 170 193 102 116 M20x2 5 321 364 241 273 144 164 443 502 332 376 199 226 M22x2 5 439 497 329 373 197 224 605...

Page 13: ...SERVICE NOTES Form MHD56416 Edition 1 13 ...

Page 14: ...SERVICE NOTES 14 Form MHD56416 Edition 1 ...

Page 15: ...SERVICE NOTES Form MHD56416 Edition 1 15 ...

Page 16: ...www irtools com ...

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