Heckler And Koch HK630, HK770, HK940 Instructions For Use

							 
 
  
 
 
 
 
 
 
Instructions for Use 
 
 
  
						

							 
 
 
We would like to congratulate 
you on purchasing our modern 
semi-automatic rifle. W ith it, you 
now own a superb hunting rifle. 
You will quickly become familiar  
 
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Special features and advantages:  
- Modern, well balanced semi-  
  automatic rifle.  
- Superb accuracy.  
- Low recoil, thanks to the de- 
  layed roller locked bolt system.  
- Polygon barrel - Barrel and 
  chamber of high quality special  
  steel alloy, hammer-forged in  
  one operation.  
- Receiver configurated for quick  
  and secure mounting of the 
  HKO5 telescopic sight clamp 
  mount.  
 
 
 
 
 
 
 
 
 
 
 
2  
 This claw-type mount ensures 
  firm seat of the scope. Once 
  sighted-in, the telescopic sight  
  can be removed and 
  remounted as often as you like,  
  without altering the strike of  
  the rifle.  
- Inexpensive semi-automatic 
  rifle, thanks to economical mass 
  production that nevertheless 
  offers custom-made quality.  
- A rifle for the skilled hunter, 
  thanks to the possibility of  
  being able to fire a quick second 
  shot. 
 
with your semi-automatic hunting
rifle if you handle it in accordance 
with these instructions
  
						

							 
 
 
Table of Contents 
 
 
 
  
 Page
Design feature  2
Assemblies 4
Loading the rifle  5
Operating the safety  6
Unloading the rifle  6
Field stripping  7
Stripping the bolt assembly  8, 9
Gap between bolt head and bolt carrier  9
Assembling the rifle  10
Sights 10
Telescopic sight clamp mount  11
Mounting the telescopic sight  12
Parts list of the HK 630, HK 770, HK 940 
Semi-automatic hunting rifles  13,14,15
Guarantee 15
 
 
 
 
 
 
 
 
 
 
 
 
 
3 
  
						

							 
 
 
Assemblies  
  
 
 
 
1 Upper receiver  
2 Bolt, recoil spring and buffer  
3 Receiver with barrel, and stock 4 Magazine  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4  
						

							 
 
 
 
Loading the rifle  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5 
Press magazine catch, and the 
magazine will slide out. Insert filled 
magazine into the rifle until the 
magazine catch engages. 
 
Then retract the bolt all the way  
by means of the cocking lever on 
the right side of the rifle. The catch 
lever located behind the cocking 
lever will engage and hold the bolt 
open. Depressing the catch lever  
slightly will cause the bolt to  
snap forward, chamber a round  
from the magazine, and lock  
into the receiver. The rifle is now 
 
cocked and ready to fire. The  
cocking lever does not move 
when the rifle is fired.  
The cocking lever should not 
be held back and prevented 
from moving forward when the 
bolt closes. 
  
						

							 
Operating the safety  
 
 
 
Unloading the rifle  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
6 
 
All semi-automatic hunting rifles 
shown in this booklet, provide 
optimum security, thanks to the  
striker safety. The safety can only 
be engaged when the rifle is  
cocked. To put the rifle on safe,  
the safety lever must fully cover  
the red dot. The safety is off when 
the safety lever fully covers the  
white dot. 
 
Remove the magazine by  
pressing the magazine catch.  
Retract cocking lever quickly, tilt-  
ing the rifle somewhat to the side  
to permit a round that might be  
left in the chamber to slide out of  
the ejection port into your hand.  
Close the rifle and pull the trigger.  
The rifle is now unloaded and  
uncocked.  
Attention!  
Whenever having removed the  
magazine, check to make sure  
that there is no round in the  
chamber.   
						

							 
 
 
Field stripping 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
7  
 
Under normal conditions, it is  
only necessary to clean the exter-  
nal components of the rifle and to  
clean the bore. In the event of  
heavy fouling or to remove mois-  
ture or water in the rifle, it is ad-  
visable to strip the rifle for tho-  
rough cleaning. Unscrew the  
hexagon socket screw at the end  
of the upper receiver all the way.  
Remove the upper receiver to the  
rear. Remove buffer and recoil 
sprin
g.  
You can now remove the bolt 
assembly by passing a screw- 
driver through the hole for the 
screw and forcing the firing pin 
forward. It is not necessary to 
further strip the rifle for 
cleaning (except for the bolt 
assembly).  
  
						

							 
 
 
Stripping the bolt assembly 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8 
Rotate the bolt head clockwise  
one quarterturn, and then remove 
it from the locking piece. Finally,  
remove locking piece, firing pin  
and firing pin spring from the bolt  
head carrier by rotating the lock-  
ing piece further
 
To assemble the bolt, proceed in 
the reverse sequence. First slide 
the firing pin spring onto the firing 
pin and insert both into the bolt  
assembly. Then press the locking 
piece against the firing pin spring 
and rotate counterclockwise one 
quarter turn. Assemble bolt head 
and locking piece as follows:  
Place the bevelled surface of the 
bolt head beneath the spring-  
loaded bolt head locking lever.  
Strike the end of the bolt head  
lightly with the palm of your hand 
to force the bolt head far enough 
under the bolt head locking lever 
to provide a clearance of 3 mm  
(.12 in) between the bolt head  
and the bolt head carrier.  
Then rotate the bolt head counter-
clockwise about one half turn,  
until the bolt rollers and the cam-  
ways in the bolt head carrier are  
located at the same level. Then  
pull the bolt head away from bolt  
head carrier as far as it will go,  
so that the rollers recess com-   
						

							 
 
 
Stripping the bolt assembly 
 
 
 
 
 
 
 
 
Gap between bolt head and bolt carrier 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                                           
 
 
 
 
 
 
 
 
 
  
9 
 
 
Attention!  When reassembling  
the semi-automatic hunting rifle,  
do not forget to insert the locking  
rollers into the bolt head as  
otherwise the shooters safety  
could not be guaranteed and the  
bolt system of the rifle would be  
completely damaged
 
With the bolt in its closed position 
-the magazine being detached-  
the bottom side of the bolt is 
 
visible through the magazine  
well. There must be a very narrow  
gap between the bolt head and  
the bolt head carrier. You can  
determine this, if you can put a  
sheet of paper between bolt and  
bolt head (see fig., gap >0).  
If this gap has disappeared,  
please have the weapon checked 
by your local gun dealer as this  
technical condition would cause  
excessive strong recoil forces and 
thus damage the bolt system.   
						

							 
 
 
Assembling the rifle 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
Sights 
 
 
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10 
Insert the bolt assembly into the 
receiver; when doing this, press  
in the firing pin and the rollers,  
and slide all the way to the front. 
Then insert the buffer and recoil  
spring into the receiver. Rotate  
the hexagon socket screw one full turn into receiver. Next, slide  
the upper receiver onto the re-  
ceiver body from the rear until the 
collar of the screw is seated  
against the recess in the upper  
receiver. Tighten screw firmly.  
The sights consist of a hunting  
square notch rear sight and a flat 
top post front sight. The rear sight 
is adjustable for windage, the  
front sight for elevation. Our  
semi-automatic hunting rifles are
sighted-in optimally at 100 m on a 
machine rest