Hey, Bob,
I'll just copy you the material I have so far collected on my Wolverine R.
Hope it helps.
I'm not the wonder mechanic and gunsmith like so many here on the forums. But I adjusted power just fine, no big deal.
Matthias
INSTRUCTIONS + TUNING + FIXES: Wolverine R

DISASSEMBLY
▪Video:
▪Text with a few pics:
daystate.com

REASSEMBLY
▪Video:
▪Text with a few pics:
daystate.com

HAMMER ADJUSTMENT (EXTERNAL)
(HST, but technically it's hammer weight adjustment)
● Video at 25:22min:
● Video — here for Revere 12FPE, but the same for the Wolverine R HiLite:
● Daystate: Slingshot Valve explained:
▪
▪ "I have to adjust the hammer throw.... in this rifle because of the slingshot hammer technology, you dont adjust hammer spring tension as usual. The hammer system has a screw in the center of the hammer that you can adjust forward or backward, if you adjust it forward, the hammer will hit the valve with more force, if you adjust it backwards, with less force ... This is the way to increase the speed in the hammer side, in this case there is no adjustment in the spring, it is directly in the hammer .... you have to find a balance between the regulation pressure and the hammer strike to achieve the desired power without losing efficiency. | Not sure if it is 3mm or 4mm, but first you have to loosen a little screw on the side that blocks de main screw for turning."
my rifle came to me shooting jsb monsters redesigned 25.4gr @860fps (which I think is low), and jsb exact heavies 18.13gr @1.000fps (which i think is to high)...I have two possibilities, increase the power to improve the performance of the redesigned jsb monster, or lower the power and use the...
www.airgunnation.com
His email:
[email protected] ● Hammer adjustment for older, unregulated version ➔ and NOT for the R version!
Just got my new .177 Daystate Wolverine R and have to reduce speed about ten feet per second to stay under 20 ftlbs. Assume the stock comes off then ...
airgunwarriors.com

REGULATOR ADJUSTMENT
▪Video at 16:02min:
+

REG Adjustment: Degassing + Disassembly
● Video:
● Rotate clockwise (CW) = to reduce pressure
125bar to 145bar: 3h-turn (the photo on the Huma webpage confirms this amount roughly)
Just got my new .177 Daystate Wolverine R and have to reduce speed about ten feet per second to stay under 20 ftlbs. Assume the stock comes off then ...
airgunwarriors.com
● OEM = Huma
Huma shows its reg to be either 60-110bar — or 100-170bar.
Huma-Air pressure regulator for tuning your Daystate Wolverine R.
huma-air.com

PARTS: EXPLODED PARTS DIAGRAM
Diagram:
daystate.com

Tuners: UK:
So I Would like my Wolverine R Fettling to achieve the best from it.. Looking around there doesn’t seem to be any company’s who specialise in Daystate, you have Ratworks for AA but nothing jumps out for Daystate. Does any Body have any recommendations or experiences.. Preferably in Yorkshire
airgunforums.co.uk