Ingersoll-Rand LCA750T Product Maintenance Information Download

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(Dwg. MHP1627)
16. Install brake disc (694) on shaft spindle (678).

17. Install pin (696) in brake disc (695) and position brake disc (695) on brake disc

(694).

18. Install ‘O’ ring (698) in bore of coupling (699) in center groove.

19. Install coupling (699) and sleeve (700) on shaft spindle (678).

20. Install two mufflers (680) in motor flange (681).

21. Place four brake springs (701) in motor housing (331) using silicone to hold them

in place. DO NOT USE GREASE.

22. Lubricate and install ‘O’ ring (690) in recess on brake housing (689). Apply

Silicone AS310 (Silicomet) or equivalent to brake housing face.

23. Install motor flange (681) on gear housing (668) and secure with capscrews (682)

using Loctite® 243 on the threads. Refer to “TORQUE CHART” on page 12 for

torque requirements.

24. Apply Loctite® 574 to surface between motor flange (681) and motor housing

(331).

25. Ensure ‘O’ ring is installed in motor flange (681) prior to installing motor assembly

(300).

26. Install motor assembly (300) on motor flange ensuring springs stay in place and

pin (696), in brake disc (695), locates in hole in motor housing. Secure motor

assembly with four lockwashers (332) and capscrews (333). Tighten capscrews

(333) half a turn at a time to evenly compress brake springs (701). Refer to

“TORQUE CHART” on page 12 for torque requirements.

27. Install plugs (176) in gear housing (668).

28. Install reduction gear assembly on trolley side plate with capscrews (270) and

washers (271).

29. Install drive gear (136) with key (656) on planet support (655).

30. Install washer (135), washer (119) and capscrew (133) to secure drive gear (136).

(Dwg. MHP1560)

Hoist Suspension Assembly

Refer to Dwgs. MHP2970 and MHP2971.

1. Install a seal ring (150) and bearing (149) on each end of sprocket (152).

2. Position sprocket assembly in chain guide housing (151).

3. Install chain guide stop (146). Align pin holes and tap pins (147) into position

until flush with chain guide stop (146).

4. Install chain guides (143) and (144) on either side of chain guide housing using

connecting pins (145) for alignment.

5. Install seal rings (159) and (160), and bearings (158) and (161) on driving

sprocket (157).

6. Install central chain guide (141), seal bearing (162) and assembled driving

sprocket to chain guide (143) and chain guide stop (146).

7. Install caps (156), lockwashers (105) and capscrews (106) on connecting pins

(145).

8. Install cover (260) on central chain guide (141).

9. Install central chain guide (142) and seal bearing (162) on chain guide (144).

10. Install remaining caps (156), lockwashers (105) and capscrews (106) on

connecting pins (145).

11. Install screw rods (153), lockwashers (154) and nuts (115).

12. Insert suspension shafts (139) through central chain guides (141) and (142) and

trolley assemblies.

13. Install caps (113) and loosely secure with capscrews (106) and lockwashers (105)

on shafts (139).

14. Install limit switch assemblies (168).

Hoist Brake Installation

Refer to Dwg. MHP2972.

1. Position brake assembly (199) on brake cover (219).

2. Secure brake assembly with capscrews (201). Refer to ‘Torque Chart’

on page 12 for torque requirements.

Hoist Motor Installation

Refer to Dwgs. MHP2971 and MHP2973.

1. Carefully support motor assembly and position on central chain guide (142). Align

capscrew holes.

2. Secure motor with capscrews (406). Refer to “TORQUE CHART” on page 12 for

torque requirements.

Hoist Brake 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.

System Installation

1. Install hook and load chain on hoist.

2. Connect air lines, hoses and fittings.

3. Support hoist and trolley system with an adequate lifting system and install on

the end of support beam.

4. Carefully roll system onto beam and install beam rail stops.

5. Install chain bucket assembly on central chain guides (141) and (142). Refer to

Dwg. MHP2977. Secure with washers (481) and capscrews (482).

6. Repeat process to install second system.

Four Function Pendant Assembly

Refer to Dwg. MHP1545 with emergency stop or MHP1577 without emergency stop.

1. Assemble protectors (506) and ‘O’ rings (511) and (505) on valves (509).

2. Insert valve (509) assemblies into pendant handle (514) and attachments (right)

(524) and (left) (523).

3. Install screws (515) in pendant handle and attachments (right) and (left).

4. Install balls (516), springs (517) and plugs (518) into pendant handle and

attachments (right) and (left).

5. Install plug (507) or emergency stop valve (508) into pendant handle.

6. Install fittings (327) into top of pendant handle and attachments (right) and

(left). Install lifting eye (501) into top of pendant handle.

7. Facing pendant handle operation side, place levers (503) such that lever direction

indicates ”UP” on left hand side and ”DOWN” on right hand side. Install pin (502)

ensuring pin inserts through levers and locates on opposite side of pendant

handle.

8. Install screw (504) in levers.

9. Lubricate and install ‘O’ rings (528) in recesses on sides of pendant handle (514).

10. Install attachment (right) (524) and (left) (523) to pendant handle (514) and

secure with washers (526) and capscrews (527) and (525). Install shorter screws

in back, longer screws in front.

11. Facing pendant handle operation side, place levers (522) such that lever direction

indicates ”LEFT” on left hand side and ”RIGHT” on right hand side. Install pins

(529) ensuring pins insert through levers and locate on side of pendant handle.

12. Install screw (504) in levers.

13. Install exhaust washer (513) in pendant handle and secure with retainer ring

(512).

14. Attach hoses to fittings located on top of pendant handle. Locate hoses to fittings

as shown in the ”INSTALLATION” section of Product Information Manual.

Testing

Prior to initial use, all extensively repaired hoists shall be load tested by or under the

direction of an

Ingersoll Rand

trained technician and a written report furnished

confirming the rating of the tested equipment.

Trolley Operational Test

To ensure proper operation of the trolley, mount the system and conduct the

following:

1. Verify that pendant to trolley hoses are properly attached and that trolley

movement agrees with the pendant lever arrows.

2. Operate trolley

without

a load on the system. Verify trolley operates smoothly

along entire length of the beam.

3. Operate trolley

with

a load on the system. Verify trolley operates smoothly along

entire length of the beam.

Limit Switches

Operate hoist through three complete cycles to ensure consistent limit switch

operation /- 2 feet (0.6 m) of set points. Refer to ”Limit Switch Adjustment”

procedure in Product Information Manual to establish set points.

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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