Neil Price brings a classic trigger back to its best
Part two of Neil’s Weihrauch Rekord trigger refurbishment - fully restored to its former glory
11 Middle sear.
12 Bottom sear.
13 After all the component parts have been carefully polished and thoroughly cleaned, it is time for reassembly. The first item to be reassembled is the middle sear. This is an older trigger with a separate spacer that goes on the right-hand side of the unit. Later triggers have a boss integral with the middle sear.
14 When the spacer, middle sear and spring have been reassembled with the cross pin in position, the long arm of the tension spring has to be located on top of the 2mm diameter cross pin as indicated on the photograph. Before I reassemble any of the components, I always try the cross pins in the parts that they go through. This is to make sure that there are no burrs on the ends of the pins and that they are free to rotate.
15 Once the middle sear has been fitted and the tension spring correctly located, I hold the sear out of the way with an elastic band, as shown. This gives me enough clearance within the trigger housing to fit the bottom sear.
16 The bottom sear sits inside the bottom sear guide and is inserted into the trigger housing from the front of the unit. Lining up the sear and guide with the cross pin can be a bit exasperating, and some language containing many expletives may be experienced.
17 With the bottom sear fitted, the elastic band holding the middle sear can be removed, and the hollow dowel stop fitted adjacent to the middle sear.
18 The top sear and tension spring can now be reassembled with the hollow dowel in the position shown
19 The long arm of the tension spring is located as shown on top of the 2mm diameter cross pin.
20 The owner had supplied a Rowan Engineering set-back trigger to be fitted.
21 Again, make sure that the cross pin slides freely through the new trigger before fitting it in the unit.
22 Now fit the trigger tension spring and adjusting screw. Make sure that the spring fits freely through the hole in the trigger housing. If it is tight, then you will not be able to set the trigger first pressure correctly. Clean the hole out until the spring is goes through freely. I set the trigger tension by cocking the trigger unit and then adjusting the tension spring until just a light first pressure can be felt.
23 That seems to be okay. The second pressure is breaking at ¾lb force and has nil creep or graunch. The trigger also withstands the standard ‘ bump’ test. The bump test is when the sears disengage if the unit is bumped, and if the trigger unit were fitted to the rifle, the rifle would discharge.
24 The last thing I do is to put a smear of graphite grease on all of the sear contact points.
Rowan Engineering Ltd. Unit 8, Overfield Thorpe Way, Banbury, Oxon OX16 4XR 01295 251188