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Place the throttle assembly into the Valve Block, throttle valve 

stem first.

Follow the throttle assembly with the Throttle Valve Spring (3) and 

secure it with the Throttle Valve Cap (4).

Turn the Head Block in the vise so that the Throttle Lever can be 

installed.

Place the Throttle Lever on the boss on the Head and secure it 

with the Throttle Lever Pin (11).

For Model 241 only

Clamp the Throttle Handle Body (1) in leather-covered or copper-

covered vise jaws with the throttle lever boss upward.

Press in the Throttle Lever Pin/Throttle Lever Stop Pin (7) to secure 

the Throttle Lever (6).

Rotate the Throttle Handle Body in the vise.

If required, press the Throttle Valve Bushing (2) into the Throttle 

Handle Body.

Place the Retaining Screw Lock Washer (12) on the Throttle  

Valve (8).

Reinstall the Throttle Valve Face (9) and Throttle Valve Face  

4.

5.

6.

7.

1.

2.

3.

4.

5.

6.

Cap (10) onto the Throttle Valve.

Secure the Throttle Valve Face Cap with the Throttle Valve Face 

Retaining Screw (11).

Carefully push the Throttle Valve into the Throttle Handle Body.

Place the Throttle Valve Spring (14), small end first, onto the 

Throttle Valve.

Secure the throttle assembly with the Throttle Valve Cap (13).

Screw the Reducing Bushing (4) into the Throttle Handle Body 

and the Street Elbow (5) into the Reducing Bushing.

Rotate the Throttle Handle Body in the vise, Elbow downward.

Place the Screen Retainer Spring (15) and the Air Strainer Screen 

(16), convex up, into the Throttle Handle Body.

Thread the Handle (17) into the Throttle Handle Body.

Run the Handle Locknut (18) to the end of the threads on the 

Handle.

Screw the Handle into the Barrel (20) and tighten the Handle 

Locknut against the Handle.

Place the Malleable Butt (45) onto the Piston (43) and rap the Butt 

with a large hammer to seat it.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

Related Documentation

For additional information refer to:

Product Safety Information Manual 04581450.

Product Information Manual 03539574.

Parts Information Manual 16605644.
Manuals can be downloaded from ingersollrandproducts.com

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