Webley Tomahwk
Air Gun
Guarantee
The
Webley Tomahawk air rifle is fully guaranteed against faulty workmanship and
defective materials for a period of three years from the original date of
purchase provided It has not being misused or tampered with in any way Should you
experience problems with your rifle please consult the dealer from whom It was
purchased. This guarantee does not affect your statutory rights
THE LAW
KNOW THE
LAW ON AIRGUNS AND OBEY IT. ACT RESPONSIBLY, ACT SAFELY, AND THEN
ENJOY
YOUR SHOOTING!
WARNING!
Serious
damage may occur to yourself or your rifle if the barrel is allowed to snap
shut under the Influence of the mainspring Please ensure that your finger is
well away from the trigger when cocking the rifle. Removal of the main sprig
must be carried out by a qualified repairer. Read the instructions carefully
before attempting this procedure to avoid injury.
RUNNING-IN
During
the running-in period, after the first few hundred rounds, check the tightness
of the stock fixing screws, and periodically thereafter Failure to keep the
stock screws tight can result in broken screws The correct tightening torque is
0.35 Kg m (2.5 lb ft ) for the front stock screws (3383) 0.35 Kg m (2 5 lb ft.)
for the guard screws (3387 & 3385) Use WEBLUBE for lubrication of air
rifles, as directed in this manual
OUR POLICY IS ONE OF CONTINUAL
IMPROVEMENT, WE RESERVE
THE RIGHT TO MODIFY THE
SPECIFICATIONS OF THESE
PRODUCTS WITHOUT PRIOR NOTICE.
USE. CARE AND MAINTENANCE OF THE
WEBLEY TOMAHAWK AIR RIFLE.
SPECIFICATION.
The
Tomahawk is a spring operated, single shot, break-action air rifles fitted with
a precision rifled barrel, primarily sated to waisted lead pellets. The use of
steel
darts is not recommended. The rifle is available In 177 (4.5 mm), 22 (5.5mm)
and 25 (6.35) calibre's
The
Tomahawk has many special design features, which include:
1. A
fully adjustable 2-stage trigger mechanism
PLEASE NOTE TRIGGER IS FACTORY SET
TO 0.9 kg (2 lbs )
2 An
automatic re-settable safe
3.
Adjustable forend jaws to ensure accurate barrel alignment is maintained
4 A
machine-cut dovetail is provided for the fitting of a telescopic sight.
5 A
mainspring damper, which eliminates spring vibration
6 Custom
style ambidextrous stocks incorporating double cheekpieces and ventilated rubber
recoil pad Available in beech or walnut.
7
Barrels are fitted with C.A.T.S. (Controlled Air Turbulence System ) as
standard.
8.
Optional screw-in silencers are available
NOMINAL WEIGHTS:
TOMAHAWK BEECH (no sights fitted) 3.7 kgs (8.2Ibs)
TOMAHAWK WALNUT (no sights fitted) 3.4kgs (7.51bs)
RIFLED BARREL LENGTH:
ALL MODELS 38cm (15 ins)
OVERALL LENGTH:
TOMAHAWK (C.A.T.S. fitted) 112cm(441ns)
Tomahawk
air rifles are supplied packed in specially designed protective boxes, and are
ready for immediate use once familiarization with the rifle and an
appreciation
of the basic safety rules have been completed.
THE BASIC SAFETY RULES ARE:
1. Treat
every rifle as if is loaded.
2. Never
point a rifle at anyone, or allow anyone to point a rifle at you, even if you
know it is not loaded.
3.
Always carry a rifle so the direction of the muzzle is under control, even if
you stumble.
4.
Always be sure of your target and what lies behind it before discharging your
rifle.
5. Never
leave a loaded rifle unattended.
6.
Beware of targets that tend to cause ricochets
OPERATING INSTRUCTIONS.
1. With
the open hand, sharply tap the muzzle end of the barrel down to open the spring
lock Then using the barrel as a lever, cock the rifle as far as it will go;
the trigger
scar will be heard to engage with a click. The safe will automatically engage.
N.B. Keep the forefinger of the
supporting hand clear of the trigger whilst cocking the rifle. Also, never
allow the barrel to spring back before the sear is
engaged
nor pull the trigger until the barrel is returned to the closed position.
2.
Insert a pellet into the breech of the barrel (fig. 1) and push the pellet with
the finger or thumb only until flush with the end. Close the barrel; the spring
lock
will
automatically engage.
3. When
preparing to fire, point the gun towards the target and take a comfortable
Stance
When
ready to fire disengage the safe by pushing it forward with the thumb.
Squeeze
the trigger when ready to fire
ROUTINE CARE.
1. Do
not fire the rifle without a pellet in the barrel. The only time you have to do
this is when adjusting the trigger pull.
2. Do
not leave the rifle cocked or loaded when not in use Leaving it cocked will
reduce the life of the mainspring
3. After
use, wipe the rifle with an oily rag to prevent corrosion. Use Weblube gun oil.
Occasionally apply three or four drops of Weblube gun oil to:
a) Barrel pivot (2648).
b) Loading lever axis pin (2658).
c) Piston skirt. Access is through the loading lever slots
in the stock and body tube assembly.
d)
Piston seal. Access is through the air feed hole in the breech face. Important,
serious damage to the piston seal may result if it is
excessively
lubricated.
e)
Barrel locking plunger (2989)(fig.2).
Fig. 2
(The stock does not need to be removed to undertake this operation.)
f)
Mainsear axis & action pins &(3370 & 3371) - very occasionally when
stock is removed.
g) Area
of body tube contacted by cocking key (3348), adjacent to loading lever slot (fig.3)
- very occasionally when stock is removed.
TRIGGER ADJUSTMENT.
The
Webley Tomahawk is fitted with a 2-stage trigger mechanism that is factory set
to 0.9kg. (2lbs.)
To
adjust these settings the action must be removed from the stock.
Screw A
adjusts the position and length of the 1st stage trigger pull.
Screw B
adjusts the position and length of the 2nd stage trigger pull.
Screw C
adjusts the trigger pull load.
The sear
engagement can be viewed through the 6mm hole each side of the trigger cage.
THE
OPERATION OF THE SAFETY CATCH IS CONTROLLED BY THE TRIGGER MECHANISM SETTINGS,
AFTER ADJUSTING THE TRIGGER MECHANISM ALWAYS CHECK THE SAFETY CATCH ENGAGES
CORRECTLY AND THE RIFLE DOES NOT FIRE WHEN THE SAFETY CATCH IS IN THE
"SAFE" POSITION. RE-ADJUST THE TRIGGER SETTINGS IF NECESSARY.
When
checking the trigger pull always point the rifle towards the ground, even with
a pellet in the barrel.
TECHNICAL SERVICE INSTRUCTIONS.
Firring a new breech seal.
Should
the breech seal (2657) become damaged or worn, indicated by loss of velocity
and air escaping at the breech, a new one should be fitted. To remove the
old one,
cock the rifle - Apply the safe . Insert a sharp, pointed implement into the
annular space occupied by the seal. Pierce the seal and flip it out
taking
care not to damage or mark the breech face or the seal recess (fig.5)
When
fitting a new breech seal ensure that it's housing is clean and free of any
obstructions. The radiused end of the seal must face outwards so as to lie
against
the
breech face of the action. Ensure that the seal is located in its recess as far
as it will go all the way round and that the protrusion above the face is about
0.020 ''
(0.5mm).
MAJOR OVERHAUL OR REPAIR.
(For a qualified repairer)
Changing the Mainspring and Damper
The need
to change the mainspring will become necessary only after the rifle has been
fired many thousands of times. The need to change will become indicated by
a
gradual loss of pellet velocity not attributable to any other cause, e.g. air
leaks, mechanical damage etc.
Removing the old mainspring
First
ensure that the rifle is not cocked and then dismantle in the following
sequence:
1.
Detach the stock assembly by removing the two stock fixing screws front (3383),
trigger guard screw front (3387), then the trigger guard screw rear (3385).
2.
Remove the trigger unit from the action by tapping out the two body end plug
pins (3358).
3 Hold
the gun upright with the body end plug resting on a table or workbench. Avoid contact with the safe by bridging it or
overhanging the edge of a bench.
Press
firmly down against the residual spring pressure, and then unscrew the end plug
retainer (3364), which also retains the safe detent (2663) and safe detent
spring
(2664). Ease the pressure off, allowing the gun to rise against the spring
pressure. The end plug complete with safe, mainspring and damper can now be
4. Knock
the damper (2834) out of the mainspring lithe mainspring shows signs of
buckling, a new one, complete with new damper should be fitted.
Lubricate the mainspring and damper with WEBLUBE, then
insert the damper and push firmly home until its flange is flush with the end
of the
mainspring.
Reassemble in the reverse order.
The preceding paragraphs 1 - 4 relate to the necessary
dismantling to
change
the mainspring and damper only. Should it become necessary to dismantle
further
for a major overhaul, or to replace worn components, adopt the procedure
stated
in the following paragraphs.
Barrel Assembly Complete.
To
remove the barrel assembly intact, remove the barrel pivot stop screw
(2655),
then the barrel pivot (2648) complete with the barrel pivot washer (2714).
Slide
the assembly away from the breech face until the hidden end of the cocking
key
(3348) is aligned with the exit hole in the body tube, then pull the end of the
lever
out of the hole. Remove the barrel housing spacer (2649) and disc
washer
(2656) from their recesses in the barrel housing,
To dismantle
the loading lever from the barrel assembly, tap out the loading lever fulcrum
pin (2658).
To
dismantle the barrel lock mechanism tap out the barrel locking plunger Pin
(2869) using a 1/8'' (3 mm) diameter drift (fig.7).
Compress
the barrel locking plunger spring (2990) by pushing the barrel locking plunger
(2989) and withdraw the drift.
Ease the pressure off the barrel locking plunger allowing
the plunger to rise against the spring pressure. The barrel locking plunger,
together with the barrel
locking
plunger spring can now be withdrawn from the barrel housing.
When reassembling the lock mechanism it is advisable to hold
the barrel housing in a vice, using soft clamps or cloth to protect its finish.
Assemble the barrel locking plunger pin approx. 1/8'' (3 mm)
into its hole on one side of the barrel housing - the pin is a drive fit.
Refit the barrel locking plunger spring and barrel locking
plunger to the barrel housing. Compress the barrel locking plunger against the
spring pressure until
its slot
straddles the barrel locking plunger pin hole.
Push the. 1/8" (3 mm) diameter drift, now used as a
slave peg, through the open end of the barrel locking plunger pin hole to
retain the barrel locking
plunger
spring and barrel locking plunger in the barrel assembly.
Drive the barrel locking plunger pin through until it lies
centrally within its hole.
This operation will push the slave peg out.
Re-assemble the loading lever to the barrel housing, and
then refit the barrel
assembly
to the body tub, in the reverse order.
Piston and Seal Assembly.
The piston and seal assembly can only be removed when the
mainspring, trigger mechanism and loading lever have dismantled from the body
tube.
Insert a small screwdriver through the loading lever slot in
the body tube, then carefully push or tap the piston (3453) towards the end of
the tube taking care not
to touch
or damage the piston seal (3144). When sufficient piston skirt has emerged,
grasp it firmly and pull it right out.
Inspect the piston seal for wear and damage - do not
dismantle it from the piston unless renewal is necessary. To remove the old
seal, unclip it of the piston location using a screwdriver blade as a lever,
alternatively slice through its section with a sharp safety razor blade,
penknife or
Before fitting a new piston seal, first clean. then
lubricate the location recess
of the
piston. Spring the new piston seal over the piston location and push it against
the shoulder of the piston, the seal will then automatically into its recess.
If necessary,
the piston seal may be immersed in boiling water until it becomes sufficiently
pliable to clip over the piston (wipe the seal dry before fitting).
Check the seal is located evenly around the piston (fig. 8).
Oil the piston assembly, then wipe the front faces of the
seal and piston dry. Clean and lightly lubricate the body tube bore - do not
over lubricate. Refit the piston assembly to the body tube assembly, ensuring
their loading lever slots are aligned with one another.
Important Note.
The lip of the piston seal is an interference fit in the
body tube. As the piston assembly is pushed down the body tube, take care not
to damage the piston seal lip as it passes over body end plug pin holes, safe
clearance slot, trigger mechanism slot hidden by the cage and the loading lever
slot.
To minimize the risk of damage, deflect inwardly the portion
of lip exposed through the holed and slots using a blunt instrument e.g. the
blade of a screwdriver
(fig.9).
Dismantling the trigger mechanism.
REFER TO
THE DIAGRAM SHOWING DETAILS OF TRIGGER ASSEMBLY.
Before dismantling the trigger mechanism take note of how
the springs are positioned to aid reassembly.
The trigger mechanism is removed from the action as a
complete unit by tapping out the two end plug pins (3358). To dismantle the
mechanism, tap out the
safe
toggle pin (3371), and withdraw the safe toggle (3314) from the top of the
cage. Tap out the main sear axis pin (3370), then remove the main sear (3363)
and
mainsear
spring (3374) from the front of the cage. Tap out the intermediate sear axis
pin and remove the intermediate sear (3337) and its spring (3373) from the
rear of
the cage. Tap out the trigger axis pin and remove the trigger blade (3335) and
trigger block (3340) assembly from the underside of the cage. Unscrew the
trigger
load screw (3377) from the cage and remove the secondary sear spring (3376).
Tap out the trigger stop pin (3371) - the trigger stop (3372) and secondary
scar
(3352) can then be removed from the underside the cage. It is unnecessary to
remove the stock screw block (3352), however if desired, tap
out its
two retaining pins (3371).
Reassemble in the reverse order. Insert the action pins from
the right hand side of the cage and use the relevant pins to position the
trigger stop, secondary
sear
spring and main sear spring in the right hand side of the cage. When refitting
the trigger mechanism to the anion, ensure the safe toggle engages
in the
safe slot and refit the two end plug pins.
To reset
the trigger refer to the section TRIGGER
ADJUSTMENT.
Check
that the action functions satisfactorily before re-assembly into the stock.