Ingersoll Rand — Assembly of the Throttle Mechanism
Repair & overhaul
From a Ingersoll Rand service manual — check it applies to your exact model before use.
Procedure
- Install a new Throttle Valve Seat (2) by pushing it into position with a 13/16" dowel.
- Insert the short end of the stem of the Throttle Valve (5) into the jaws of an expanding-type mechanical pencil.
- Install the Throttle Valve on the Valve Seat. See Dwg. TPD1919.
- Alternate: drop the Throttle Valve, long stem first, into the inlet passage; shake the Handle until it seats.
- Install the Throttle Valve Spring (6), small end first, around the hub of the Throttle Valve.
- Coat the Inlet Bushing O-ring (9) with O-ring lubricant and install it on the Inlet Bushing (8).
- Screw the Inlet bushing into the Housing until snug and tighten to 50-55 ft. lbs. (68-75 Nm) torque.
- Wipe the stem of the Trigger Assembly (3) with light grease and insert into the trigger bore until it snaps into place.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Inlet Bushing 50-55 ft. lbs. (68-75 Nm)
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.