Service Manual

Page 16-B
DISSASSEMBLY PROCEDURE FOR REPEATER MODEL 166
HAHN SUPER GAS POWERED BB RIFLE
1. Remove Forearm 166-48 by removing Strap Screw, 105-55.
2. Remove Stock 166-9 by removing back Receiver Screw 166-44. When removing Stock do not lose the parts of the Lever Retainer
Assembly contained in the stock, namely, Lever Retainer Spring, 166-46, Lever Retainer Bushing 166-45 and Lever Retainer 166-39.
NOTE: The parts within the two halves of the receiver are under spring tension, use caution when removing the screws and the Right
Hand Receiver half so that parts do not become lost.
3. Lay the gun on a bench with L. H. Receiver 166-1 down. Retract Ball Pusher in Magazine and slide Pusher Screw 166-36 into slot as
when loading Magazine.
4. Remove two Receiver Screws 166-26 and 166-44 and Lever Screw 166-27 and carefully lift off R.H. Receiver, 166-2.
5. To replace Magazine Assembly 166-12, slide out of Strap 166-25, and replace entire assembly.
6. To replace Valve Assembly 166-3, remove Feed Arm Assembly 166-19 and slide Valve and Tube Assembly out of Strap.
7. Exhaust gas remaining in Tube by pressing Valve Stem against a hard surface.. Remove Cap and Spacer Assembly 166-16, and used
Powerlet.
8. Grip Valve Assembly 166-3 in smooth jaw pliers and unscrew from Tube, 166-5. *
9. Assemble new Valve Assembly to Tube with pliers. Screw into Tube until end of thread is flush with end of Tube. Line up exhaust hole in
Valve Assembly with either hole in Tube.
10. Slide Tube and Valve thru Strap, replace Feed Arm Assembly on Valve.
11. Make sure #3 0 Ring 166-32, is properly located in Breech Block 166-35. Locate Valve and Tube Assembly over pin in Receiver casting.
Be sure exhaust hole in Valve is facing down and Tube is located on pin.
12. Replace Trigger Spring 166-30 on boss, hook spring over Trigger 166-28. Rotate Trigger approximately 1/4 turn and assemble Trigger
Pin, 166-29.
13. Assemble Hammer Spring 166-33 on boss with straight end of spring against lower edge of Receiver.
14. Assemble Hammer 166-31 by catching Trigger in notch on Hammer and inserting Hammer Pin 166-29, (same as Trigger Pin). Make
sure hook on spring is engaged over bottom edge of Hammer.
15. Insert an approximately 1/8" 0 x 1-1/2" long pin in hole for lever screw.
16. Place Lever 166-24 on pin, be sure tang on Lever is above tang on Hammer.
17. Assemble top half of Receiver, hold in place with hand, remove pin an assemble Lever Screw, 166-27.
NOTE:
This is screw which has only a short threaded portion on one end.
18. Reassemble front Receiver Screw 166-26, this is a 6 x 32 screw other is an 8 x 32 screw. Reassemble center screw.
19. Test action to insure proper functioning of Lever, Hammer & Trigger before continuing. Position straight portion of Hammer Spring, 166-
33, above third pin in Receiver. This adjustment is made before stock is assembled and sets power to original factory setting.
Continued on Page 16.C