THE BLACKWOLF

ON THIS PAGE

• Tools you will need
• Regulator settings
• Inserting the hammer
• Installing the cocking arm and pellet probe
• Trigger Assembly
• Valve Assembly
• Regulator
• Bottle/Cylinder Housing Assembly
• Installing the housing
• Bottle assembly
• Cylinder Assembly
• Barrel and shroud assembly
• Final Checks and Settings
• Stock and Safety catch Replacement

INTRODUCTION

Daystate air rifles are engineered to the highest standards, but like anything else, they require repairs and servicing work to be carried out both in and out of warranty. 

The aim of this guide and the accompanying video is to provide instruction on how to reassemble the Daystate Blackwolf.  

In addition, a separate regulator service video is available here

For a cylinder or bottle switch we have made a separate video which can be viewed here

For fitting a carbon tensioner view here

For Trigger Adjustment video here

For Volumax fitment (TAC version only) here

Compressed air is dangerous. You should only use this guide if you are a qualified and experienced gunsmith used to working with compressed air. Before you carry out any work on the Daystate Wolverine, or any PCP air rifle for that matter, you must ensure it is not cocked, not loaded and empty of air.

TOOLS YOU WILL NEED

• Allen keys: 2mm; 2.5mm; 3mm; 4mm; 5mm 
• T10 TORX bit (rifles up to July 2025)
• 10mm Deep socket
• Daystate Regulator removal tool
• Daystate Valve removal tool
• 16mm thin open-end spanner
• 22mm open-end spanner
• Tweezers
• 3-pin M5 A/T removal tool (large)- available from Daystate part number DANTITOOLXX 
• Digital callipers 
• O-rings used in Blackwolf
• O-ring pick

PART NUMB.	QTY	SIZE	IMP or METRIC	SHURE	LOCATION
4	2	14.5x1.5	M	70	Breech/barrel
5	1	118	IMP	70	Housing b
6	3	014	IMP	70	valve housing
11	1	007	IMP	Urethane	valve
80	1	28x1.78	M	70	Barrel .22
80	1	1x1.6	M	70	Barrel .177
80	1	5x1.5	M	70	Barrel .30
80	1	1x1.6	M	70	Barrel .25
85	1	019	IMP	70	Shroud
91	2	3.5x2.62	M	70	gauge
91	2	3.5x2.62	M	70	gauge
91	2	3.6x2.5	M	70	gauge
91	2	5x2	M	70	gauge
96	1	006	IMP	Urethane	filler
103	1	617	IMP	70	bottle
107	4	122	IMP	70

BLACKWOLF REGULATOR SETTINGS

Calibre	Power	Pressure
177	12	105
22	12	105
177	20	110
177	31	190
22	45	160
22	61	190
25	67	195
30	95	195

INSERTING THE HAMMER

02:06 Slide the hammer in place with the cut-out uppermost into the breech block and drop the cocking-dog though the slot in the scope rales and slide it backwards into position. Tighten the two 2mm screws.

02:50 Insert hammer spring.

03:15 replace hammer spring adjuster and fasten in position the end cap using a 3mm allen key and if a UK sub 12 ft/lbs version the three pin anti tamper screw.

INSTALLING THE COCKING ARM AND PELLET PROBE

04:35 insert the pellet probe in through the front of the breech block with the cutaway side downwards until fully in position (05:27).

05:38  Insert the cocking arm into the left or right side as preferred. Do not overtighten the bolt pivot screw as this can distort the pivot bush. Align the two cocking arm pegs, then position and tighten the retaining screw with a 2.5mm allen key (06:50).

07:25  Replace the blanking plate and securing screw, reinstall the pellet probe detent plate with a 2mm allen key.

TRIGGER ASSEMBLY

Lightly coat each component with moly grease.

09:01  insert front sear spring and front sear. Secure with cross pin.

09:40  install the trigger sear and blade assembly inserting the brass spring seat and spring into the reciprocating hole. Hook the trigger into the trigger housing and replace the cross pin into the uppermost hole.

 

10:58 replace the top sear and spring. Secure with the cross pin.

11:32 reinsert the safety catch dowel spring and detent ball. Use lithium grease to ensure a slick movement.

12:30  replace the trigger unit assembly and trigger guard onto the breech block using a 3mm allen key.

VALVE ASSEMBLY

14:40 Lubricate with silicone grease and insert the valve body into the breech block with transfer port hole uppermost. Reinstall the locking grub screw into the threaded hole in the magazine well. Tighten using a 2.5mm allen key.

 

17:17  Lubricate with silicone grease and replace the valve seat with O-ring innermost. Replace the valve pin into the valve seal.

18:27 on sub 12 ft/lbs versions the rear of the valve is separate reinsert this with the valve spring into the valve cap and screw into the breech block.

A full regulator service video is available here

REGULATOR

The Blackwolf is fitted with the latest Huma-Air regulator that is the identical unit fitted to the BRK Ghost. The regulator should be capable of 20,000 shots or 3 years between services.

A full regulator service video is available here.

BOTTLE/CYLINDER HOUSING ASSEMBLY

22:05  Insert the regulator back into the housing . 

Replace the two gauges with the  Daystate marked gauge on the left side ensure the o-ring below the gauge is in place and in good condition.

Replace the foster filling connector tightening with a 10mm deep socket.

INSTALLING THE HOUSING

BOTTLE ASSEMBLY

25:40  Using silicone grease, on the inserted bottle housing o-ring, mate the bottle housing and breechblock together. Replace and tighten the 4 screws using a 3mm allen key.

Add more grease the bottle seal and without damaging the seal screw in place the bottle. Hand tight is sufficient.

CYLINDER ASSEMBLY

The same process is as for the bottle assembly but with an additional end-plug that must be greased using a silicone-based grease before inserting into the end of the cylinder.

BARREL AND BARREL SHROUD ASSEMBLY

26:48  If the Barrel shroud has been removed from the barrel first replaced the barrel shroud retainer onto the brass collar,  aligning with previous dimple marks. Tighten the single retaining screw with a 2mm allen key.

28:02 Replace the barrel with the two recesses uppermost. Grease the brass section to aid insertion over the o-rings retained inside the block and to reduce the chance of galvanic corrosion – aiding  future barrel removal. Tighten the two barrel retaining screws using a 3mm allen key and checking the barrel is correctly aligned. Leave a small gap between the shroud support and block (28:39). Screw on the shroud assembly. Should a carbon tensioner be fitted at this point we recommend watching this video. Note: If a tensioner is already factory-fitted e.g. Walnut, Laminate or TAC stock versions, the tensioner is bonded in place and we do not recommend its adjustment or removal.

FINAL CHECKS AND SETTINGS

29:23 The rifle should now be refilled with air, Checking for any air leaks. The regulator can now be reset to its original position, by carefully unscrewing the regulator adjustment screw, this should be done very slowly and very carefully allowing the regulator to settle. maybe by firing a couple of dry air shots as the correct pressure is neared,  as if the regulators is turned too far out air will need to be removed from the rifle to reduce the regulator pressure. A list of suggested regulator pressures is contained at the beginning of this instruction.

STOCK AND SAFETY CATCH REPLACEMENT

Replace the stock and secure the 8mm stock bolt with a 5mm allen key.

30:47 Replace the safety catches of both sides of the rifle using a 2mm allen key (T10 TORX up to July 2025). Ensure the spacer on each side is also in position.