Ingersoll-Rand FA2A, Parts, Operation And Maintenance Manual

21

MAINTENANCE

WARNING

• Never perform maintenance on the winch while it is
supporting a load.
• Before performing maintenance, tag controls:

DANGER - DO NOT OPERATE -

EQUIPMENT BEING REPAIRED.

• Only allow personnel trained in safety and service on this
winch to perform maintenance.
• After performing any maintenance on the winch, test winch
to 125% of its rated line pull at mid drum before returning to
service. (Testing to more than 125% of rated line pull may be
required to comply with standards and regulations set forth
in areas outside the USA.)
• Turn off air system and depressurize air lines before
performing any maintenance.

INTERVAL

MAINTENANCE CHECK

Start of each shift
(Operator or
Maintenance
Personnel)

Make a thorough visual inspection of the
winch for damage. Do not operate the winch
if damaged.

Operate the winch at low RPM in both
directions. Winch must operate smoothly
without sticking, binding or abnormal noises.
Check the operation of the brake(s).

3 Months
(Maintenance
Personnel)

Inspect the drum brake friction linings. Clean
or replace parts as required. Adjust drum
brake as necessary.

Yearly
(Maintenance
Personnel)

Inspect the winch gearing, shafts and
bearings for wear and damage. Repair or
replace as necessary.

Check all the supporting members, including
the foundation, fasteners, nuts, sheaves and
rigging, etc. for indications of damage or
wear. Repair or replace as required.

Thermoplastic Coating

Thermoplastic coating is an extremely tough and durable coating
designed to take the toughest treatment without chipping or
peeling. Special steps must be taken to protect the coating when
parts are removed, replaced and if excessive environmental or
operational conditions have damaged the coating.

Cleaning Parts

The area to be coated must be clean and free from loose coating.
Remove any surface corrosion. To paint thermoplastic coated
parts, the parts must be sand blasted in order to ‘rough up’ the
surface for proper paint adhesion. Sand blasting will not remove
thermoplastic coating (abrasive material will bounce off).
Loose coating can be removed by cutting with a sharp cutting
tool (chisel, putty knife or knife).

Heat Source

WARNING

• When using an open flame be aware of the materials around
the work area. Some solvents, lubricants and materials are
extremely flammable.
• Drain all components of lubricants, water or any other
fluids. Remove, or open all vents and drains. Components
will be hot and may discharge hot fluids or gases. Allow
sufficient time for components to cool, or cool off
components, prior to handling. Gaskets, ‘O’ rings, and any
components that may be damaged should be removed prior to
applying coating.

Thermoplastic coating is heat applied. The surface of the
component to which the thermoplastic coating is being applied
must be maintained at a temperature of a least 230º F (110º C),
but not over 450º F (232º C). Optimum temperature is 300º F
(149º C) for best results. A small propane torch (Ingersoll-Rand
Part No. 71308886) or heat gun (Ingersoll-Rand Part No.
71308894) can be used.

NOTICE

• When using a heat source always keep it moving. Small
circles work best. Failure to do so will result in a scorched
area at the repair.

The choice of heat gun or propane torch depends on the size of
the area to be coated and the amount of time available to
accomplish the task. The propane torch heats the surface faster,
but is hard to control and can scorch the coating. The heat gun is
slower, easier to control and generally results in a better looking
finish.

Repairing Surfaces

For minor repairs to the thermoplastic coating conduct the
following:
1.

If the under laying surface is not corroded and the scratch is
less than 1/16 inch (1.6 mm) wide the surrounding
thermoplastic coating can be heated until the material flows
together. For clean surfaces with damage greater than 1/16
inch (1.6 mm) heat the area and then apply thermoplastic
coating powder (Ingersoll-Rand Part No. 71308902 [2 oz.
(56.7 g)] to fill the area. Continue heating until coating
liquefies and flows together with the existing coating.

2.

Corrosion in damaged area must be removed. Sandblast or
wire brush the area to remove corrosion. If corrosion exists,
ensure the corrosion has not penetrated below the surface of
existing thermoplastic coating. This can usually be easily
determined by checking to see if the coating is loose around
the corroded area. Cut away coating as necessary to expose
corrosion for removal. If the damaged area is less than 1/16
inch (1.6 mm) wide the surrounding thermoplastic coating
can be heated until the material flows together. For surfaces
with damage greater than 1/16 inch (1.6 mm) heat the area
and then apply thermoplastic coating powder
(Ingersoll-Rand Part No. 71308902 [2 oz. (56.7 g)] to fill
the area. Continue heating until coating liquefies and flows
together with the existing coating.