Service Manual

Page 2-A
DISASSEMBLY PROCEDURE FOR AIR RIFLE MODELS 107-108 REFER TO DRAWINGS PAGE 2.1, 2.2, 2.3
1. Remove Rear Stock Screw (108-21).
Remove Knurled Locating Screw Nut from under
side of stock.
Remove Stock.
2. Clamp unit in vise on Breech Block (108-1).
Unscrew Breech Bolt Lock Screw (105-53).
Remove Breech Bolt Lock Assembly.
3. Remove Spring Stop Screws (108-22).
Remove Spring Stop (108-9).
Remove Hammer Spring (108-28).
Remove Hammer (108-8.
4. Remove Cocking screw (108-15) thru slot in Tube.
Remove Breech Bolt (108-6) CAUTION; Breech
Bolt Spring Balls (105-39) and Breech Bolt
Spring (105-40) may fall out when Breech
Bolt is removed.
5. Remove Valve Nut (110-18) using Special Wrench T-l). Exhaust
Valve Body must be held in position with line up pin (T-3) in blind hole
provided for this purpose, while unscrewing Body Lock Nut.
Remove Exhaust Valve Body Assembly from Tube
with threaded portion of Valve Extractor (T-5).
Shake out Check Valve Assembly (108-73).
Shake out Check Valve Spring (101-43).
NOTE: If Exhaust Valve Body Gasket (105-31)
adheres to Chamber, it can be picked out with
wire hook. Refer to drawings Page 2.3 for
Valve Assembly detail.
6. Drive out Front Sight Pin (110-15).
Remove Front Sight & Guide Assembly.
Remove Pump Assembly (140-74).
Refer to Drawings Page 2.2
NOTE: Compression Chamber (105-23) and Locating Screw is soldered into Tube (108-26). Breech (108-1) is soldered to Compression Tube (108-26).
VALVE SYSTEM FOR AIR RIFLES; Refer to Drawings Page 2.3. Used on Models 107-108-109-110-120
FUNCTION; To receive, store and expel air.
MALFUNCTIONS; Failure to hold compression. Inspect Check Valve and Exhaust Valve Gaskets and metal seats for damaged surfaces. Valve heads
must be tight on stems.
When re-assembling Valve Body to Tube, blind hole opposite Air Port hole must be lined up with line up pin (T-3) thru hole in bottom of Tube.
Exhaust Valve Body Gasket part (105-31) should be replaced. All internal Valve parts must be kept clean. Valve, Nut (110-18) must be tight to prevent
leak around Gasket.
PUMP & LEVER ASSEMBLY. DRAWINGS PAGE 1.3 Refer to Page 1-C for malfunctions and Corrective measures.