Česká Zbrojovka Cz 527 Instruction Manual

							INSTRUCTION MANUAL 
CZ 527 
  
						

							CZ 527  -  INSTRUCTION MANUAL 15 Before handling the firearm read this manual carefully and observe the following safety instructions. Improper and careless handling of the firearm could result in unintentional discharge and could cause injury, death, or damage to property. The same consequences can be caused by any unauthorized modifications or adjustments, corrosion, or use of non-standard or damaged ammunition. In these cases the manufacturer shall not be responsible in any manner whatsoever for the resultant consequences. Before leaving the factory this firearm was tested, carefully inspected, and packed. CZ cannot accept responsibility for product handling while in transit, or upon leaving the factory. Therefore, please examine this rifle carefully at the time of purchase to ensure that it is unloaded and undamaged. This instruction manual should always accompany the firearm and that even in the case of its loan or sale.  
CONTENTS 
SAFETY INSTRUCTIONS 16 
THE CZ 527 RIFLE DESCRIPTION  
AND TERMINOLOGY 17 
OPERATING INSTRUCTIONS 18 
Ammunition 18 
Magazine Removal 19 
Magazine Loading 19 
Loading of the Rifle 19 
Unloading of the Rifle 19 
The Safety and its Operation 20 
Set-trigger Operation 20 
Trigger Adjustment 20 
Sight Adjustment 20 
Rifle Scope 20 MAINTENANCE INSTRUCTIONS 21 
Stripping for Cleaning - Disassembly 21 
Disassembly of the Bolt 21 
Cleaning the Rifle 21 
Cleaning the Barrel Bore  
and the Cartridge Chamber 22 
Cleaning of Other Rifle Parts 22 
Preserving 22 
TROUBLESHOOTING,  
CAUSES AND REMEDIES 23 
ILLUSTRATION AND LIST OF PARTS 24 
TECHNICAL SPECIFICATIONS 26 
LIST OF ILLUSTRATIONS 26  
						

							 CZ 527  -  INSTRUCTION MANUAL 16 SAFETY INSTRUCTIONS 
 
Always follow the safety instructions for your safety and the safety of others. 
1. Always handle your firearm as if it were loaded. 
2. Never point your firearm at anything you do not intend to shoot. 
3. Never take anyones word that a gun is unloaded. 
4. Always make sure that your firearm is not loaded before laying it down, or handing it to another person. 
5. Always store your rifle unloaded with the striking mechanism released. 
6. Never abuse your firearm by using it for any purpose other than shooting. 
7. Never leave a loaded firearm unattended. 
8. Prior to loading the firearm make sure that barrel bore, chamber, and action are clean and clear of obstructions. Clean 
a dirtied firearm immediately so that it will function properly and safely. 
9. Always use only clean, dry, original high quality commercially manufactured ammunition, which is appropriate to the 
caliber of your rifle. 
10. Never drink alcoholic beverages or take drugs before or during shooting. 
11. Always wear safety glasses and ear protection during shooting whenever possible. 
12. Always keep the safety on when the rifle is loaded with a cartridge in the chamber, until you are ready to fire. Keep 
firearm pointed in a safe direction when disengaging the safety. 
13. A rifle with an activated set-trigger should be handed with maximum care, as even jolts during handling operations 
could cause an unintended discharge. 
14. Always keep clear and keep others clear of the ejection port. 
15. Never squeeze the trigger or put your finger in the trigger guard until you are aiming at a target and ready to shoot. 
16. Always be absolutely sure of your target, and the area behind it, before you squeeze the trigger. A bullet could travel 
through or past your target up to several hundred meters. 
17. Never shoot at a hard surface such as rock, or a liquid surface such as water.  
						

							CZ 527  -  INSTRUCTION MANUAL 17 18. Never fire your firearm near an animal unless it is trained to accept the noise. 
19. Never indulge in horseplay while holding your firearm. 
20. Failure to fire: always hold the firearm, keeping it pointed towards the target, or a safe open area and wait 30 seconds 
when the firearm fails to fire. If a hangfire (slow ignition) has occurred, the round will fire within 30 seconds. If the 
round does not fire, remove the magazine, eject the round and examine the primer; if the firing pin indent on the 
primer is light, or off center, or non-existent, have the rifle examined by a competent gunsmith. 
21. Always make sure your firearm is not loaded before cleaning, storing or travelling. 
22. Always keep and store your firearm and ammunition in separate locked receptacles out of reach and sight of children 
and untrained people. 
23. Never alter any parts of your rifle as the safety and proper function of your rifle could be seriously compromised. 
24. Always be aware that corrosion, use of damaged ammunition, dropping the rifle on hard surfaces or other coarse 
treatment could cause a damage you may not see. If something like this happens, let the firearm to be examined and 
tested by a competent gunsmith. 
 
 
THE CZ 527 RIFLE DESCRIPTION AND TERMINOLOGY 
 
The names of basic rifle parts used in this Instruction Manual are presented in Fig. 1. Nomenclatures of all CZ 527 
parts are presented in the section Illustration and List of Parts. 
The CZ 527 is a light repeating rifle with a Mauser-type bolt action. The trigger mechanism is of a single set design with 
an adjustable set-trigger; a single stage trigger is supplied on special order. The trigger is adjustable for pull weight and 
trigger travel. The safety secures the rifle against unintentional discharge and at the same time blocks the bolt in a closed 
position. The top of the receiver has milled grooves to accommodate scope mounts. The stock surface is made in a semi-
matte polyurethane lacquered finish. The rifle is produced in several versions. Characteristic features of all versions are: 
- the CZ 527 is well-balanced and consequently quick and easy to aim 
- easy mounting of rifle scope 
- controlling elements, which are simple in operation, and easy to reach (bolt handle, trigger, safety, bolt catch, magazine catch)  
						

							 CZ 527  -  INSTRUCTION MANUAL 18 - completely adjustable trigger mechanism, alternatives with set-trigger or without set-trigger 
- easy disassembly for cleaning and routine maintenance, which can be carried out without any tools 
- a high degree of accuracy when firing and long service life 
- high functional reliability in all environments, even with ammunitions made by various manufacturers, and with different 
types of bullets 
Lux Classic walnut stock provided with a cheekpiece. This model is designed for aiming with mechanical sights as well as 
optical sights. Excellent Luxury version with stock made from hand-picked walnut wood with a cheekpiece. The metal parts surface is lustre 
polished, the bolt is jewelled. This model is produced with floating barrel. FS Full stock with cheekpiece and shortened barrel and rubber buttplate. American Walnut stock without cheekpiece and with reduced drop at heel. This model is designed for aiming with optical sights only. 
This model is produced with floating barrel. Prestige Luxury version adapted to the requirements of markets in the USA and Australia. This model stems from version 
denominated American, additionally the stock is made from hand-picked walnut wood. The metal parts surface is 
lustre polished, the bolt is jewelled. Carbine Rifle made in shorter barrel version with a classic walnut stock without a cheekpiece. This model is designed for 
aiming with mechanical sights as well as optical sights. Varmint Full stock without cheekpiece, with reduced drop at heel and strengthened fore-end. The barrel is of heavier type, 
floating, without mechanical sights, the stock is designed for aiming with optical sights only. Varmint (USA) is supplied 
with laminated or plastic stock.  
 
OPERATING INSTRUCTIONS 
Ammunition 
Use only factory-manufactured standard ammunition of appropriate caliber, which are in compliance with CIP 
regulations (International Proof Commission for Firearms and Ammunition) or SAAMI (Sporting Arms and Ammunition 
Manufacturers Institute Inc. of the United States). The use of other cartridges could damage the firearm or cause 
malfunctions or injury to the shooter.  
						

							CZ 527  -  INSTRUCTION MANUAL 19 Magazine Removal 
Using one finger press the magazine catch towards the magazine (Fig. 2), and with the remaining fingers grip the 
magazine bottom, and remove the magazine from the rifle. 
 
Magazine Loading 
With the open end uppermost, grasp the magazine in one hand. Place a cartridge on the magazine follower with the 
base just forward of the retaining lips. Press the cartridge down and back until its base touches the rear flat edge of the 
magazine. Place the next cartridge on top of the previous cartridge and slide in as already described. 
 
Loading of the Rifle 
ALWAYS MAKE SURE THE RIFLE IS POINTED IN A SAFE DIRECTION WHEN LOADING! 
Insert a loaded magazine into the rifle and check that it is securely caught by the magazine catch. 
Grip the rifle with the left hand by its fore-end, place the buttplate against your body, and grip the bolt handle with the 
other hand. Open the bolt by raising the bolt handle and pulling it to the rear to its stop. Then push the bolt vigorously to its 
forward position again and by rotating the bolt handle in a downward direction close the bolt action. This procedure inserts 
the cartridge into the cartridge chamber and cocks the striker mechanism. The rifle is now ready to fire. If you do not 
intend to fire immediately, ensure the firearm safety as described further in the section Safety and its Operation. 
Note:  
Loading is also possible for single cartridges by directly inserting into the chamber without the use of a magazine. 
 
Unloading of the Rifle 
ALWAYS MAKE SURE THE RIFLE IS POINTED IN A SAFE DIRECTION! 
- remove the magazine in the manner as already described - see operating instructions, Magazine Removal 
- move the safety to its SAFETY-OFF position in order that the bolt can be opened 
- open the bolt and check to ensure that the cartridge has been extracted from the chamber and ejected 
- close the bolt 
- depress the trigger (dry fire)  
						

							 CZ 527  -  INSTRUCTION MANUAL 20 The Safety and its Operation 
Shift the safety forward (Fig. 3) until the red dot is covered. This move puts the trigger mechanism out of operation, and 
at the same time blocks the bolt so that it is neither possible to fire the rifle or manipulate the bolt. 
 
Set-trigger Operation 
The set-trigger is activated by pushing it in the forward (Fig. 4). For the reason of safety, activate the set-trigger only 
after the rifle is loaded and shortly before shooting. Do not carry your rifle with an activated set-trigger! If you have 
activated the set-trigger and you do not follow through with firing, keep your firearm pointed in a safe direction while 
carefully engaging the safety and then squeeze the trigger. Subsequently unload the rifle in the manner described above. 
 
Trigger Adjustment 
Independent of whether there is a mounted set-trigger or not, the trigger mechanism can be adjusted with respect to 
the trigger pull weight, and the trigger travel, before and after discharge. The adjustment can be performed after taking the 
barreled action out of the stock by means of the setting screws A (trigger pull), B (trigger travel before) and C (trigger 
travel after discharge) - see Fig. 5. 
If the CZ 527 rifle is fitted with a set-trigger, the adjustment of the set-trigger is carried out by the screw located in front 
of the trigger (Fig. 6). For safety reasons do not adjust the set-trigger travel as too short, as the rifle with an activated set-
trigger is very sensitive to shock, and during handling the rifle could unintentionally discharge. The safety of the set-trigger 
adjustment can be checked with the rifle unloaded by repeated opening and closing of the bolt combined with moving of 
the safety to its ON and OFF positions. The spontaneous release of the trigger must not occur. 
Note: There is a possibility of dismantling the set-trigger from the rifle, without any impairment to the functional properties 
or adjustment of the conventional trigger. 
Sight Adjustment 
The elevation correction is carried out by exchange of the front sight, when previously pressing the front sight detent 
(Fig. 7). The front sights are supplied in different sizes. Windage correction can be carried out by the drifting of the rear 
sight in the dovetail and then secured in its position by an indentation. 
Rifle Scope 
Mounting of the riflescope and sighting-in of the rifle should be entrusted to a qualified gunsmiths workshop.  
						

							CZ 527  -  INSTRUCTION MANUAL 21 MAINTENANCE INSTRUCTIONS 
 
Stripping for Cleaning - Disassembly 
1. Remove the magazine. 
2. Shift the safety to its SAFETY-OFF position in order that the bolt can be manipulated. 
3. Open the bolt, and after swinging out the bolt stop (Fig. 8), pull the bolt rearwards out of the receiver. 
 
Disassembly of the Bolt 
As described above, remove the bolt from the rifle. Grasp the bolt body with your left/right hand and with the other 
screw off the bolt sleeve approx. by 90° to the left (Fig. 9). Doing this releases the firing pin spring, and makes it possible 
to pull the handle out off the bolt body and subsequently also the firing pin with the bolt sleeve and firing pin spring. If you 
want to dismantle the firing pin spring, press the firing pin spring retainer against the spring pressure approx. 2 mm, and 
then rotate in any direction by 90° and remove from the firing pin together with spring (Fig. 10). 
Please note carefully the correlated positioning of parts, especially of the bolt body and the bolt body sleeve. After each 
disassembly and reassembly of the bolt, check for yourself if it is possible to engage the safety in the manner described in 
this Instruction Manual. 
CAUTION: 
Do not strip your firearm any further. If you assume that your firearm requires adjustment or repair, entrust this work to 
a competent gunsmith in a specialized workshop! 
 
Cleaning the Rifle 
Clean the rifle 
- each time you use it 
- if you get your rifle wet 
- as soon as possible after shooting 
- at least once a year in a temperate climate 
- as often as once a month in a tropical climate, or other demanding environment  
						

							 CZ 527  -  INSTRUCTION MANUAL 22 Cleaning the Barrel Bore and the Cartridge Chamber 
If the firearm has not been fired or if only a few cartridges have been fired, clean the barrel bore and cartridge chamber 
by a clean patch attached to a cleaning rod. Repeat the cleaning, changing patches, until the last patch comes out clean. 
When the barrel bore is very dirty, apply a gun cleaning solution using cleaning brush. Let the solvent act for about 10 
minutes (this time may vary depending on the solvent agent being used). Then thoroughly scrub out the barrel bore. 
Subsequently, dry the barrel bore and cartridge chamber with a clean patch and check that all powder residues or fouling 
have been removed. If necessary, repeat this procedure. 
The cleaning rod and the brush must be inserted into the barrel bore from the chamber, to prevent wear or damage to 
the muzzle. Pass the brush all the way through the barrel bore before reversing the movement. If you try to change 
directions with the brush in the barrel, the brush could stick. 
 
Cleaning of Other Rifle Parts 
Other parts of the rifle can be cleaned with a dry cloth, old toothbrush, copper bristle brush, or a wooden scraper. 
Preserving oil or paraffin oil can be used for proper cleaning. Never use the agent designed for barrel bore cleaning! 
These solutions could remain in the joints, and after some time could cause corrosion. Check that cloth particles or brush 
bristles have not become lodged in any part of the rifle. 
The maintenance of the stock can be carried out with a dry cloth or by some furniture-polishing product. 
 
Preserving 
When the barrel bore, cartridge chamber, and all accessible parts are clean and dry, wipe these parts with a cloth 
soaked in gun oil or apply the oil in a spray. Remove all excess oil. 
Before shooting always wipe the barrel bore dry. At very low temperatures remove the oil from all accessible parts or 
apply a lubricant prepared especially for these conditions. 
Use thick preserving agents for example, preserving grease only for long-term storage in demanding climate 
environments, and before any use of the rifle, it must be thoroughly removed from all parts of the firearm.  
						

							CZ 527  -  INSTRUCTION MANUAL 23 TROUBLESHOOTING, CAUSES AND REMEDIES 
 
If your firearm is properly used and maintained, malfunctions will rarely occur. However, if such a situation does occur 
please observe the following instructions. 
CAUTION - if a malfunction occurs, the possibility of an unintentional discharge is substantially increased. For this 
reason, when clearing malfunctions, observe the Safety Instructions already mentioned above. Keep the rifle pointed in 
a safe direction, do not turn the rifle against your body or anyone else’s. Do not place your hands in front of the barrel! 
 
Malfunction Possible Cause Remedy A round has not 
been fed into the 
chamber. Magazine is not fully inserted or is damaged. 
The rifle or cartridges are fouled (dirty). Insert magazine properly or change magazine. 
Clean the rifle and cartridges and wipe them dry or 
as the case may be slightly lubricate. Misfire Defective cartridge. 
Firing Pin hole fouled (dirty) or improper 
lubrication agent used during low temperatures 
conditions. Follow the Safety Instructions according to point 20. 
Disassemble and clean the firing pin or use low 
temperature lubricant. A shot sounds 
“weak“. The primer has been activated but no powder 
load was inside the cartridge case. Unload the rifle and check that the bullet is not 
lodged in the barrel. Any subsequent shot could 
cause damage to the barrel! The spent case 
has not been 
ejected. Cartridge chamber, extractor or ammunition 
dirty or unsuitable lubricant in low temperature 
environment Clean and wipe the rifle dry or eventually lubricate 
lightly with a suitable agent. Use clean and new 
ammunition. If you cannot clear away any malfunction in the manner described above, entrust the rifle to a competent gunsmith for 
inspection and repair.