Ingersoll-Rand LCA015, Parts, Operation And Maintenance Manual

21

11. Remove retainer ring (40) and bearing (5) from ring gear

support (45).

12. Remove 'O' rings (46) from gear housing (30).

Chain Guide Housing

LCA015S and LCA030D Hoists

Refer to Dwg. MHP1462.
1.

Remove the gear housing assembly and motor assembly as
previously described.

2.

Tap on the sprocket (2), on the brake side, until bearing
(12) and sprocket (2) are clear of the chain guide housing
(9).

3.

Remove chain guide (50) and remaining bearing (12).

4.

If replacement is required remove retainer ring (56) and oil
seal (55) from bore of sprocket.

LCA030S and LCA060D Hoists

Refer to Dwg. MHP1464.
1.

Remove gear housing assembly and motor assembly as
previously described.

2.

Tap on the sprocket (9), on the brake side, until bearing
(10) and sprocket (9) are clear of the chain guide housing
(52).

3.

Remove chain guide (14) and remaining bearing (10).

4.

If replacement is required remove bearing (63) and oil seal
(62) from bore of sprocket.

LCA060S and LCA120D Hoists

Refer to Dwgs. MHP1465.
1.

Remove gear housing assembly and motor assembly as
previously described.

2.

Tap on the sprocket (59), on the brake side, until bearing
(55) and sprocket (59) are clear of the chain guide housing
(12).

3.

Remove chain guide (56) and remaining bearing (55).

4.

If replacement is required remove bearing (5) and oil seal
(6) from bore of sprocket.

Pendant Disassembly

Refer to Dwg. MHP1544 or MHP1558.
1.

Remove the fittings (327) and the lifting eye (501).

2.

Unscrew plugs (518) and remove with springs (517) and
balls (516).

3.

Tap out pin (502) and remove the levers (503).

4.

Remove screws (515) from pendant handle (514).

5.

Remove the valve assemblies (items 506 and 509) with the
'O' rings (511 and 505).

6.

Remove the emergency stop valve (508) or plug (507) from
the handle (514).

7.

Remove retainer ring (512) and exhaust washer (513).

Cleaning, Inspection and Repair

Use the following procedures to clean, inspect and repair the
components of the hoist.

Cleaning

CAUTION

•  Bushings that rotate in the frame or are loose or worn
must be replaced. Failure to observe this precaution will
result in additional component damage.

Clean all hoist component parts in solvent (except for the
friction discs). The use of a stiff bristle brush will facilitate the

removal of accumulated dirt and sediments on the gears and
frames. If bushings have been removed, it maybe necessary to
carefully scrape old Loctite

®

 from the bushing bores. Dry each

part using low pressure, filtered compressed air.

Inspection

All disassembled parts should be inspected to determine their
fitness for continued use. Pay particular attention to the
following:
1.

Inspect all gears for worn, cracked or broken teeth.

2.

Inspect all bushings for wear, scoring or galling.

3.

Inspect shafts for ridges caused by wear. If ridges caused by
wear are apparent on shafts, replace the shaft.

4.

Inspect all threaded items and replace those with
damaged threads.

5.

Measure the thickness of the friction disc. Replace the
friction discs if the grooves are no longer visible.

Repair

Actual repairs are limited to the removal of small burrs and other
minor surface imperfections from gears and shafts. Use a fine
stone or emery cloth for this work.
1.

Worn or damaged parts must be replaced. Refer to the
applicable Parts Listing for specific replacement parts
information.

2.

Inspect all remaining parts for evidence of damage.
Replace or repair any part which is in questionable
condition. The cost of the part is often minor in comparison
with the cost of redoing the job.

3.

Smooth out all nicks, burrs or galled spots on shafts,  bores,
pins or bushings.

4.

Examine all gear teeth carefully and remove nicks or  burrs.

5.

Polish the edges of all shaft shoulders to remove small
nicks which may have been caused during handling.

6.

Remove all nicks and burrs caused by lockwashers.

Assembly

Brake

LCA015S and LCA030D Hoists

Refer to Dwg. MHP1462.
1.

Lubricate 'O' rings (24) and (38) and install on brake cover
(34) and brake piston (37).

2.

Install brake sleeve (29) on pinion (21) and secure in
position with retainer ring (30).

3.

Install brake piston (37) in gear housing (23). Internal 'O'
ring groove must be positioned nearest the gear
compartment.

4.

Install friction and steel discs, beginning with a friction disc
(35) and alternating with a steel disc (36), until the discs are
used.

5.

Install brake disc (28).

6.

Position springs (33) in the brake disc spring holes and
install brake cover (34) and brake support plate (64) on
gear housing (23). Install and tighten four cover screws
(27), one half turn at a time each, until cover is secure.
Keep brake cover square to gear housing during installation
to avoid damaging 'O' ring.

7.

Reinstall handle (25) if previously removed.