Service Manual

DISASSEMBLY PROCEDURE FOR MODEL 45 HAHN BB REVOLVER Page 17.B

1. Exhaust C0

gas and remove empty Powerlet.

2. Remove Grip Screw, 45-37 and Grip Plates, 45-32 and 45-33.

3. Support butt and muzzle ends of gun on two blocks to free cylinder. (See Illus.)

4. Place Hammer in Safety position, (half-cock)

5. Remove Hammer Screw, 45-32, two Frame Screws, 45-40 and Frame Screw 45-39.

CAUTION: Use care when removing Frame Assembly R.H., 45-3.

Parts are under spring tension and susceptible to loss.

6. Place screwdriver in slot behind Trigger and pry off Frame Assembly R.H., 45-3.

All internal parts can now be removed.

To Reassemble gun, proceed as follows:-

7. BB Retainer, 45-29, is cemented in place with Pliobond or Le Page's Liquid

Solder. If Retainer is damaged or has come loose, replace if necessary and re-cement with

one of the above adhesives.

8. Inspect Barrel, 45-28, for obstructions. Replace Barrel in Frame L.H. with BB Retainer

in saw slot and hole in Barrel over pin on casting.

9. Assemble Valve Assembly, 45-15, to Cylinder Assembly, 45-12. Grease both parts well on

bearing surfaces.

10. Install Valve and Cylinder Assemblies in casting. Spot hole in Valve fits over pin in

casting.

11. Assemble Cylinder Ball, 400-16, and Cylinder Spring, 45-27. Place Ball and Spring in

depression in the casting, hold Ball and Spring lightly with the thumb of left hand; rotate

Cylinder forward until ball drops into a detent, continue rotating Cylinder forward until

Ball raises slightly and back end of Spring drops into casting depression. Holding Ball and

Spring firmly, turn Cylinder backward until Spring compresses and lies flat in the casting

depression.

NOTE: Cylinder must not be moved after Ball and Spring are assembled.