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Dissasembly of the Throttle and Inlet
1. Place the Cylinder Case in the vise to remove the
Inlet Bushing (4), Inlet Bushing Screen (5) and the
Throttle Valve Spring (6). The Bushing has an
interference thread and is tightly fit.
2. Drive out the Throttle Lever Pin (13) to release the
Lever Assembly (14).
3. Using a 3/32" hex wrench, reach inside the handle
and remove the Valve Seat Screw (12) from the
Throttle Valve Seat Support Assembly (7).
4. Thread a No. 8–32 screw about 5" (127 mm) long into
the throttle valve seat support in place of the removed
valve seat screw. A piece of 5/32" welding rod can be
threaded on one end to serve the same purpose.
5. Grasp the protruding end of the screw in a vise, and
while tapping lightly on the housing or handle with a
plastic hammer, pull on the housing or handle to
withdraw the throttle parts.
6. The Air Strainer Screen (8) can now be removed and
cleaned.
ASSEMBLY
General Instructions
1. Always press on the inner ring of a ball–type bearing
when installing the bearing on a shaft.
2. Always press on the outer ring of a ball–type bearing
when pressing the bearing in a bearing recess.
3. Whenever grasping a tool or part in a vise, always use
leather–covered or copper–covered vise jaws. Take
extra care not to damage threads or distort housings.
4. Always clean every part, and wipe every part with a
thin film of oil before installation.
5. Apply a film of O–ring lubricant to all O–rings before
final assembly.
6. Check every bearing for roughness. If an open
bearing must be cleaned, wash it thoroughly in a
clean, suitable cleaning solution and dry with a clean
cloth. Sealed or shielded bearing should never be
cleaned. Work grease thoroughly into every open
bearing before installation.
Assembly of the Throttle and Inlet
Thoroughly clean and lubricate all Throttle Valve
components before assembling the tool. Lubricate
with Ingersoll–Rand No. 10 Oil.
MAINTENANCE SECTION
1. Grasp the Dead Handle in leather–covered or
2. Assemble the valve seat support parts.
3. Insert the Support Assembly (7) into the handle, large
4. Apply o–ring lubricant to the Seals (3). Fit the
5. Assemble the Lever Assembly (14) as illustrated
6. Align the holes in the Lever Assembly with the
7. Insert Throttle Valve Spring (6), small end first.
8. Clean the face of the Inlet Bushing (4) and the Inlet
18
copper–covered vise jaws with the live air handle
upward.
diameter first. Locate a punch on the flat of the screw
head and tap it with a hammer until the Assembly is
firmly seated.
seals to the Throttle Valve (2) and push the assembly,
small diameter first, into the handle until it seats
firmly.
If Lever Assembly being serviced does not have the
window–type lever, install a complete new Lever
Assembly.
below.
Locking Lever Assembly
slots in the Cylinder Case. With a soft face hammer,
tap the Throttle Lever Pin (13) through the Lever
Assembly. File off any sharp edges. Operate the
mechanism internally by hand to assure operation.
Bushing Screen (5) using a clean, suitable, cleaning
solution, and dry them. Insert the Screen and Bushing
in the end of the Cylinder Case by grasping the flats
with a wrench. Tighten to 35 to 45 ft–lb (47 to 61
Nm) torque.
(Dwg. TPD563)
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