Ingersoll-Rand FA2A, Parts, Operation And Maintenance Manual

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5. All seals, gaskets and ‘O’ rings should be discarded once
they have been removed. New seals, gaskets and ‘O’ rings
should be used when assembling the winch.
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 replacement.
8. When removing ball bearings from shafts, it is best to use a
bearing puller. When removing bearings from housings,
drive out the bearing with a sleeve slightly smaller than the
outside diameter of the bearing. The end of the sleeve or
pipe which contacts the bearing must be square. Protect
bearings from dirt by keeping them wrapped in clean
cloths.
Thermoplastic Coated Parts Disassembly
Thermoplastic coating on capscrew heads, nuts, housings and
other components can be removed as follows:
CAUTION
• Separate parts using proper tools. Ensure machined
surfaces are not damaged during disassembly.
1. Fasteners:
a.
Push tool into or over fastener, forcing coating off of
the fastener.
b. If coating is too thick, then heat the fastener to soften
coating. Socket or wrench will push softened coating
off, allowing removal of part.
c. For socket head capscrews, setscrews, etc., heat the
component until coating is softened. Use a small
screwdriver or similar tool to remove coating to allow
access for wrench.
2. For housings, plates and other coated mating components
use a sharp knife or similar tool to cut through coating
around mating area of components.
Drum Guard Disassembly
Optional feature. Refer to Dwg. MHP0658.
1.
Remove capscrews (592).
2. Remove brackets (591) by sliding out of drum guard (590).
3. Remove drum guard (590) from rear (drum brake side)
sideframe (64) carefully. By design the drum guard attaches
to the sideframe using tabs. The smaller, upper tabs are
visible on the top of the sideframe. The longer, lower tab is
located beneath the sideframe edge. During removal care
must be taken not to bend the tabs. To correctly remove, at
the point where the drum guard and the sideframe meet,
push, or tap the lower portion of the drum guard in towards
the winch drum (62). The direction of force should be
directly away from the sideframe. Do not pull ‘up’ or
‘down’ as the tabs may become deformed.
Winch Disassembly
Refer to Dwgs. MHP0947, MHP1248, MHP1310 and
MHP1324.
1.
Remove the wire rope from the drum. Remove wire rope
anchor (63) and store for reassembly.
2. 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.
3. Disconnect and tag the air lines.
4. To drain oil refer to “LUBRICATION” section.
5. Remove the fasteners securing winch to its foundation and
move the winch to a suitable work area before beginning
disassembly.
WARNING
• The air motor weighs approximately 100 lbs. (45.3 kg).
Adequately support the air motor before removing the motor
mounting capscrews.
6. Remove the four capscrews (221) securing the motor
assembly to the motor adapter (71). Using a hoist to
support the motor, pull the motor straight away from the
winch. Refer to the ‘Motor Disassembly’ section if motor
disassembly is required.
7. Remove drive shaft (61) and coupling (60).
8. If equipped, disconnect the drum band brake.
Manual Drum Brake:
Refer to Dwg. MHP1372.
a.
Remove cotter pin (139) and pin (138).
b. Loosen capscrew (133) and allow cam stop (132) to
rotate freely.
c. To disassemble further, refer to ‘Manual Band Brake
Disassembly’ and Dwg. MHP1372.
Automatic Drum Brake:
Refer to Dwg. MHP1374.
a.
Remove capscrews (101), spacers (102) and (103).
b. Remove and save spacer (105).
c. Loosen two nuts (117).
d. Remove capscrew (120), pivot bar (119) and nuts
(117).
e. To disassemble further, refer to ‘Automatic Band
Brake Disassembly’ and Dwg. MHP1374.
9. Remove any other externally mounted winch attachments.
Refer to the applicable section for disassembly instructions.
CAUTION
• There are a total of eight capscrews securing the brake
cover to the brake housing. Two of these capscrews hold the
brake assembly together, but do not attach to the outboard
upright. One capscrew attaching the brake assembly is
located directly beneath the brake air line fitting connection;
the other is located 180 degrees from the air fitting. The
heads of these two capscrews sit deeper into the counterbores
of the brake cover. Do not remove these two capscrews until
the brake has been separated as an assembly from the winch
and the directions in the ‘Disc Brake Disassembly’ section
have been reviewed.
10. Disconnect and remove brake hose (75). Remove six
capscrews (1) attaching disc brake assembly to outboard
upright (26). Remove disc brake assembly by tapping
around housing with a soft hammer or mallet while pulling
out and away from upright in a horizontal direction.
Remove dowel pin (20) and store until re-installation. To
further disassemble the disc brake assembly, refer to Dwg.
MHP0947 and the ‘Disc Brake Disassembly’ section.