Ingersoll-Rand FA2A, Parts, Operation And Maintenance Manual

27

NOTICE

• Do not disassemble planetary assemblies further than
necessary to complete repairs. If planet gears (43) or (51) are
disassembled, note the position of all spacers, roller bearings
and shims to ensure correct reassembly.

4.

To disassemble an output planet gear (43) from the output
carrier (35) conduct the following:
a.

Before disassembly verify each gear (43) has a 0.005
to 0.032 inch (0.1 to 0.8 mm) end clearance.

b.

Using a small punch, drive roll pin (37) fully into
output planet pin (36).

c.

Gently tap and slowly remove output planet pin (36)
from output carrier (35). Using a punch, remove roll
pin (37) from planet pin and discard.

d.

Remove output planet gear (43) assembly. Take care to
prevent internal roller bearings (41) in each gear from
falling out during removal.

e.

Note the position and quantity of the washers (38),
(39) and (40) in each gear assembly. Keeping the
washers separated, by assembly, will assist in re-
installation.

NOTICE

• If gear clearance is not within specification (0.005 to 0.032
inch [0.1 to 0.8 mm]) as determined in Step 4a., correct
location/quantity of washers (38), (39) and (40) must be
determined at assembly.

f.

Unless the roller bearings (41) or spacer (42) must be
replaced it is not recommended that these parts be
separated or removed from the output planet gear
assembly. Care must be taken to maintain the roller
bearing position. The output planet pin (36) can be
carefully reinserted into the gear to maintain bearing
position until reassembly.

g.

When planet gears are removed the thrust washer (44)
may be removed from the inside of the output carrier
(35).

5.

To disassemble an input planet gear (51) from the input
carrier (47) conduct the following:
a.

Remove retainer ring (53) from input planet pin (49).

b.

Unless the washers (39), roller bearings (50) or input
planet gear (51) must be replaced it is not
recommended that these parts be separated or removed
from the input planet carrier. Care must be taken to
maintain the roller bearing position. To remove the
washers (39), input planet gear (51) and bearings (50)
slide parts off of planet pin.

6.

Remove the oil seal (58) and discard. Remove the caged
needle bearing (57) only if replacing. To remove press
bearing out of housing.

Free Spool Disassembly

Optional feature. Refer to Dwg. MHP1321.
1.

Relieve pressure in the air lines and winch air components
by operating the winch control several times after the air
supply has been turned off.

WARNING

• Shut off, bleed down and disconnect the air supply line
before performing any disassembly procedures.
• Do not attempt repairs with load on wire rope.

2.

To assist in reassembly, place match marks on the housing
(503) and outboard upright (26).

3.

Remove capscrews (229) and pull the free spool shifter
assembly (506) out of housing (503).

NOTICE

• Spring (552) is compressed by handle (509). During
disassembly do not lose latch (553) when pin (508) is
removed.

4.

Press down on base of handle (509) and, using a pin punch
or similar tool, drive out dowel pin (508). Separate parts:
handle, latch (553), detent plate (510) and shifter (512).

5.

Remove ‘O’ ring (404) from housing (503). Discard ‘O’
ring.

6.

To remove dowel pin (551) from shifter (512) the pin must
be heated to loosen the Loctite

®

 bond.

7.

Remove capscrews (1) and washers (511) securing cover
(2) to housing (503).

8.

Separate cover from housing. Remove and discard gasket
(18).

9.

Remove capscrews (502) securing housing to upright (26).
Pull housing away from upright while pushing shaft
support (505) towards upright until housing is removed.

10. Remove capscrews (504) and pull shaft support away from

output shaft (28).

Cleaning, Inspection and Repair

Cleaning

Clean all winch component parts in solvent (except the drum
brake bands and disc brake friction plates). The use of a stiff
bristle brush will facilitate the removal of accumulated dirt and
sediments on the housings, frame and drum. If bushings have
been removed it may be necessary to carefully remove old
Loctite

®

 from the bushing bores. Dry each part using low

pressure, filtered compressed air. Clean the drum brake band
using a wire brush or emery cloth. Do not wash the drum brake
band in solvent. If the drum brake band lining is oil soaked, it
must be replaced.

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 having
damaged threads.

5.

Inspect the drum band brake lining for oil, grease and
glazing. If the drum band brake lining is oil-soaked,
excessively greasy or overly glazed replace the brake band.
Remove small glazed areas of band brake lining by sanding
lightly with a fine grit emery cloth.

6.

Measure the thickness of the drum band brake lining. If the
drum brake band lining is less than 0.062 in. (2 mm) thick
anywhere along the edges replace the brake band assembly.

7.

Inspect motor cylinder (228) bores for signs of wear.
Cylinders can be lightly honed, for any large scratches or
wear patterns, replace cylinder assembly.