Ingersoll Rand — Winch Disassembly
Repair & overhaul
From a Ingersoll Rand service manual — check it applies to your exact model before use.
Before you start
- Shut off, bleed down and disconnect the air supply line before any disassembly
- FA2 air motor weighs approximately 117 lb (53 kg); FA2.5 air motor approximately 260 lb (118 kg)
Procedure
- Remove the wire rope from the drum.
- Operate the winch to position the reduction gear drain plug at its lowest position.
- Relieve pressure in the air lines by operating the winch control several times after air supply is off.
- Disconnect and tag the air lines.
- Remove the winch from its mounting and take to a suitable work area.
- Remove lower case drain plug and allow motor housing oil to drain; loosen fill cap to vent.
- Drain oil from the gear reduction assembly by removing pipe plug when at its lowest point.
- For disc brake winches remove pipe plug in brake housing to drain brake oil.
- Remove drum band brake, drum guard and other externally mounted attachments.
- Remove capscrews and lockwashers securing the motor assembly to the motor adapter; pull motor straight away.
- On disc brake winches loosen capscrews alternately and evenly until brake spring tension is released.
- Remove brake housing, friction plates and drive plates, and springs from brake piston.
- Remove seals (11) and (12) from the brake piston (10).
- Remove splined hub (19) from shaft (35) followed by retainer ring (32).
- Remove retainer ring (36) from the drum shaft bore and pull shaft and bearing assembly.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Ingersoll Rand service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.