It is appropriate before reading the instructions look at the video instructions and then read the instructions for avoiding common mistakes during installation Regulator Fitting Instructions for S200 UK Model (CZ200T)
You will need the following very basic items
- A good strong vice
- A pair of stilsons (pipe wrench)
- A flat screw driver
- A piece of abrasive paper about 6” x 4” – Some green P80 AlyOxide will do fine
- A pair of Hex head machine screws – M5 should do nicely
Cut the screws down so that the length of the screw is not long enough to touch the bottom of the 4.2mm holes in the brass end cap. Turn the diameter of the threads down so that it forms a push fit in the hole – You don’t need to lose a lot – Hold the hex head firmly in the chuck of a variable speed electric drill and filed it down gently with a smooth file while the screw was rotating – slowly! Check that you are getting tight fit to holes in cap.
Discharge the air from the cylinder and remove it from the rifle. Moderator comes off first to let the cylinder out. Put the rifle away somewhere safe and clean. Wrap the abrasive paper tightly around the cylinder going around itself once – ROUGH SIDE OUT – and clamp it in the vice firmly but taking care not to compress the metal. The paper goes on about 3” from the brass.
Drive the screws into the holes – Press them in by hand to start with, then a slight tap with a light hammer – or compress them into the holes with the vice. Take care to orient a pair of flats of the hex head parallel to the length if the cylinder so that the stilson jaws don’t come up against a corner.
Carefully get the stilsons on the hex heads taking care not to touch the brass with the wrench. Tighten stilson wheel as much as possible. Then, apply firm continuous pressure on the screws turning them anti-clock wise. The cap will start to turn. Be patient with this step.
If the cap does not come free and you feel the cylinder turning in the vice, gently tighten the vice a little bit more.
Once the cap starts to turn, all you need is finger pressure. Leaving the hex head screws in place, unscrew the brass cap completely. The aluminium tube attached to it also unscrews with finger pressure.
Once it is off, use the screwdriver to screw in the brass screw inside the cap till it is 10mm deep. If you have and AT-free rifle, you would screw in this brass s crew all the way in, then ease back (unscrew) by 1/2 turn to reduce the air coming out
Screw in the regulator where the original aluminium tube was – all the way – again finger tighten only. Re-assemble the cap + regulator assembly into the cylinder. Nip up using the Stils ons and hex head screws going clockwise this time.
Before re-assembly, nsure the o-ring on the regulator seals well in the brass cap. Do not over tighten.
Un-restrict the side screw on the action and set it to get the desired legal UK output of sub-12 ft.lbs** Remember, higher power does not equal higher accuracy!
Remove the screws from the holes – you may need a set of pliers to pull them out – they should have left absolutely no visible damage.
You must keep maximum cleanness in the entire pressure system (airtube and outer o-rings). Do not disassemble the regulator without previous approval, which will be awarded based on e-mail correspondence, where you provide the reason why it would be necessary to disassemble the regulator. In the case of breach this procedure you may damage the regulator function (fully assembled regulator is not simple and it is necessary to follow the correct procedure). For these reasons, the disassembly without previous consent,or failure exact installation procedure can not claim the warranty. Since regulator is not original part from the manufacturer’s, installation is on your own responsibility.
Raj N. from Rugby, Warwickshire.
Forum Name – ‘Raj’ on AAOC Website.
Raj is a very happy and satisfied customer from the UK; he would be pleased to answer any S200 related questions via PM on the forum.
Big thanks to Raj for creating this guide.
With this rifle, especially foreign version 7.5 J, which has a different input channel into the barrel (about 1.2 mm compared to 3 mm as the CZ 200 viz. Foto) can not normally reach speeds 16J. Moreover this version has not side screw for tuning consistency, because the basic consistency for 7.5J is done by small channel which reduces the flow. To enlarge the muzzle velocity, the initial channel in the barrel increases to a similar diameter as the CZ 200 S ie the 2.5-3mm. This is resulting in worsening due to the lack of consistency and side screw may be an acceptable consistency without regulator hard achieve.
Here I attach the results of foreign CZ 200T set according to the owner about 13J at the canal was enlarged to 2.5mm. There is consistency compared with the regulator and those without.
Left barrel CZ 200T with channel about 1.25 mm, CZ 200S right channel with 3 mm
Tuned CZ 200T 13J with the regulator. It can also set more than 16j, but the owner wanted 13J.
Comparison with and without the regulator (JSB Heavy)
!!! Dont forget turn on NOTE in youtubevideo. This notes are important for the correct installation , so you can avoid frequent mistakes !!!
Video Installation for brass regulator
What to do when your output pressure increasing over time? This is most likely caused by dirt on o-ring on plastic screw.
In this video is shown how remove dirt and replace o-ring . In video is used Gunpower regulator. Procedure is same for others regulator.